BIG-IP 15.1.4 Fixes and Known Issues

Supplemental Document : BIG-IP 15.1.4 Fixes and Known Issues

Applies To:

Show Versions

BIG-IP AAM

15.1.4

BIG-IP APM

15.1.4

BIG-IP Link Controller

15.1.4

BIG-IP Analytics

15.1.4

BIG-IP LTM

15.1.4

BIG-IP AFM

15.1.4

BIG-IP PEM

15.1.4

BIG-IP DNS

15.1.4

BIG-IP FPS

15.1.4

BIG-IP ASM

15.1.4

Updated Date: 05/28/2022

BIG-IP Release Information

Version: 15.1.4
Build: 47.0

Note: This content is current as of the software release date
Updates to bug information occur periodically. For the most up-to-date bug data, see Bug Tracker.

The blue background highlights fixes

ID Number	CVE	Solution Article(s)	Description
949933-1	CVE-2021-22980	K29282483	BIG-IP APM CTU vulnerability CVE-2021-22980
1017973-2	CVE-2021-25215	K96223611	BIND Vulnerability CVE-2021-25215
1017965-2	CVE-2021-25214	K11426315	BIND Vulnerability CVE-2021-25214
965485-3	CVE-2019-5482	K41523201	CVE-2019-5482 Heap buffer overflow in the TFTP protocol handler in cURL
949889-3	CVE-2019-3900	K04107324	CVE-2019-3900: An infinite loop issue was found in the vhost_net kernel module while handling incoming packets in handle_rx()
803965-7	CVE-2018-20843	K51011533	Expat Vulnerability: CVE-2018-20843
797797-4	CVE-2019-11811	K01512680	CVE-2019-11811 kernel: use-after-free in drivers
797769-9	CVE-2019-11599	K51674118	Linux vulnerability : CVE-2019-11599
968733-6	CVE-2018-1120	K42202505	CVE-2018-1120 kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service
939421-2	CVE-2020-10029	K38481791	CVE-2020-10029: Pseudo-zero values are not validated causing a stack corruption due to a stack-based overflow

Functional Change Fixes

ID Number	Severity	Solution Article(s)	Description
913729-5	2-Critical		Support for DNSSEC Lookaside Validation (DLV) has been removed.
907765-1	2-Critical		BIG-IP system does not respond to ARP requests if it has a route to the source IP address
1014433	2-Critical		Time stamp format is not the same for all LTM logs
948073-2	3-Major		Dual stack download support for IP Intelligence Database
923301-2	3-Major		ASM, v14.1.x, Automatically apply ASU update on all ASMs in device group
911141-3	3-Major		GTP v1 APN is not decoded/encoded properly
876937-3	3-Major		DNS Cache not functioning
866073-2	3-Major		Add option to exclude stats collection in qkview to avoid very large data files
751032-5	4-Minor		TCP receive window may open too slowly after zero-window

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
1032761	1-Blocking		HA mirroring may not function correctly
1004833-2	1-Blocking		NIST SP800-90B compliance
1002109-3	1-Blocking		Xen binaries do not follow security best practices
988645	2-Critical		Traffic may be affected after tmm is aborted and restarted
987113-1	2-Critical		CMP state degraded while under heavy traffic
980325-5	2-Critical		Chmand core due to memory leak from dossier requests.
974241-1	2-Critical		Creation of access policy with modern customization may lead to failover in a VIPRION or vCMP guest with multiple blades
967905-2	2-Critical		Attaching a static bandwidth controller to a virtual server chain can cause tmm to crash
944513-2	2-Critical		Apache configuration file hardening
941893-3	2-Critical		VE performance tests in Azure causes loss of connectivity to objects in configuration
928029-2	2-Critical		Running switchboot from one tenant in a chassis filled with other tenants/blades gives a message that it needs to reboot the chassis
1027637	2-Critical		System controller failover may cause dropped requests
1004517-2	2-Critical		BIG-IP tenants on VELOS cannot install EHFs
1000973-3	2-Critical		Unanticipated restart of TMM due to heartbeat failure
998221-3	3-Major		Accessing pool members from configuration utility is slow with large config
996593-2	3-Major		Password change through REST or GUI not allowed if the password is expired
992865	3-Major		Virtual server may not enter hardware SYN cookie mode on BIG-IP i11000 and i15000 series appliances
988793	3-Major		SecureVault on BIG-IP tenant does not store unit key securely
985537-1	3-Major		Upgrade Microsoft Hyper-V driver★
976505-2	3-Major		Rotated restnoded logs will fail logintegrity verification.
975809-1	3-Major		Rotated restjavad logs fail logintegrity verification.
973201-2	3-Major		F5OS BIG-IP tenants allow OS upgrade to unsupported TMOS versions★
969713-1	3-Major		IPsec interface mode tunnel may fail to pass packets after first IPsec rekey
969105-2	3-Major		HA failover connections via the management address do not work on vCMP guests running on VIPRION
964941-1	3-Major		IPsec interface-mode tunnel does not initiate or respond after config change
959629-2	3-Major		Logintegrity script for restjavad/restnoded fails
958353-2	3-Major		Restarting the mcpd messaging service renders the PAYG VE license invalid.
956293-2	3-Major		High CPU from analytics-related REST calls - Dashboard TMUI
946089-2	3-Major		BIG-IP might send excessive multicast/broadcast traffic.
932497-3	3-Major		Autoscale groups require multiple syncs of datasync-global-dg
928697-2	3-Major		Incorrect logging of proposal payloads from remote peer during IKE_SA_INIT
913849-1	3-Major		Syslog-ng periodically logs nothing for 20 seconds
908601-2	3-Major		System restarts repeatedly after using the 'diskinit' utility with the '--style=volumes' option
895781-2	3-Major		Round Robin disaggregation does not disaggregate globally
889045-3	3-Major		Virtual server may stop responding while processing TCP traffic
880289	3-Major		FPGA firmware changes during configuration loads★
850193-4	3-Major		Microsoft Hyper-V hv_netvsc driver unevenly utilizing vmbus_channel queues
849157-2	3-Major		An outgoing SCTP connection that retransmits the INIT chunk the maximum number of times does not expire and becomes stuck
841277-7	3-Major		C4800 LCD fails to load after annunciator hot-swap
827033-1	3-Major		Boot marker is being logged before shutdown logs
746861-3	3-Major		SFP interfaces fail to come up on BIG-IP 2x00/4x00, usually when both SFP interfaces are populated★
1029105	3-Major		Hardware SYN cookie mode state change logs bogus virtual server address
1024853	3-Major		Platform Agent logs to ERROR severity on success
1013649-4	3-Major		Leftover files in /var/run/key_mgmt after key export
1010393-4	3-Major		Unable to relax AS-path attribute in multi-path selection
1008837-2	3-Major		Control plane is sluggish when mcpd processes a query for virtual server and address statistics
1002761-1	3-Major		SCTP client's INIT chunks rejected repeatedly with ABORT during re-establishment of network link after failure
962249-2	4-Minor		Non-ePVA platform shows 'Tcpdump starting DPT providers:ePVA Provider' in /var/log/ltm
921365-1	4-Minor		IKE-SA on standby deleted due to re-transmit failure when failing over from active to standby
921065	4-Minor		BIG-IP systems not responding to DPD requests from initiator after failover
898441-1	4-Minor		Enable logging of IKE keys
819053	4-Minor		CVE-2019-13232 unzip: overlapping of files in ZIP container
1004417-3	4-Minor		Provisioning error message during boot up★

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
1029357	1-Blocking		Performance drop during traffic test on VIPRION (B2250, C2400) platforms
945997-2	2-Critical		LTM policy applied to HTTP/2 traffic may crash TMM
943101-2	2-Critical		Tmm crash in cipher group delete.
942185-2	2-Critical		Non-mirrored persistence records may accumulate over time
934461-2	2-Critical		Connection error with server with TLS1.3 single-dh-use.
1039145-3	2-Critical		Tenant mirroring channel disconnects with peer and never reconnects after failover
1005489-2	2-Critical		iRules with persist command might result in tmm crash.
997929-3	3-Major		Changing a Traffic Matching Criteria port from 'any' to another value can prevent a virtual server from processing traffic
969637-2	3-Major		Config may fail to load with "FIPS 140 operations not available on this system" after upgrade★
963713-1	3-Major		HTTP/2 virtual server with translate-disable can core tmm
956133-3	3-Major		MAC address might be displayed as 'none' after upgrading★
944641-1	3-Major		HTTP2 send RST_STREAM when exceeding max streams
941481-2	3-Major		iRules LX - nodejs processes consuming excessive memory
941257-1	3-Major		Occasional Nitrox3 ZIP engine hang
940665-1	3-Major		DTLS 1.0 support for PFS ciphers
930385-3	3-Major		SSL filter does not re-initialize when an OCSP object is modified
912425-3	3-Major		Modification of In-TMM monitors may result in a crash
891373-2	3-Major		BIG-IP does not shut a connection for a HEAD request
887965-1	3-Major		Virtual server may stop responding while processing TCP traffic
882549-2	3-Major		Sock driver does not use multiple queues in unsupported environments
819329-4	3-Major		Specific FIPS device errors will not trigger failover
818833-1	3-Major		TCP re-transmission during SYN Cookie activation results in high latency
760050-8	3-Major		"cwnd too low" warning message seen in logs
1020941-2	3-Major		HTTP/2 header frames decoding may fail with COMPRESSION_ERROR when frame delivered in multiple xfrags
1016113-3	3-Major		HTTP response-chunking 'sustain' profile option may not rechunk responses when also using a web acceleration profile.
962433-4	4-Minor		HTTP::retry for a HEAD request fails to create new connection
962177-2	4-Minor		Results of POLICY::names and POLICY::rules commands may be incorrect
912945-2	4-Minor		A virtual server with multiple client SSL profiles, the profile with CN or SAN of the cert matching the SNI is not selected if cert is ECDSA-signed
895557-2	4-Minor		NTLM profile logs error when used with profiles that do redirect
751586-3	4-Minor		Http2 virtual does not honour translate-address disabled
1018493-2	4-Minor		Response code 304 from TMM Cache always closes TCP connection.

Performance Fixes

ID Number	Severity	Solution Article(s)	Description
910633-1	2-Critical		Continuous 'neurond restart' message on console
1004633-3	2-Critical		Performance degradation on KVM and VMware platforms.
948417-2	3-Major		Network Management Agent (Azure NMAgent) updates causes Kernel Panic

Global Traffic Manager (DNS) Fixes

ID Number	Severity	Solution Article(s)	Description
1039069-2	1-Blocking		Multiple issues affecting the RESOLV::lookup iRule command following the fix to ID1007049.★
995853-2	2-Critical		Mixing IPv4 and IPv6 device IPs on GSLB server object results in nullGeneral database error.
918597-5	2-Critical		Under certain conditions, deleting a topology record can result in a crash.
993489-3	3-Major		GTM daemon leaks memory when reading GTM link objects
973261-2	3-Major		GTM HTTPS monitor w/ SSL cert fails to open connections to monitored objects
937333-2	3-Major		Incomplete validation of input in unspecified forms
912001-3	3-Major		TMM cores on secondary blades of the Chassis system.
864797-2	3-Major		Cached results for a record are sent following region modification
857953-2	4-Minor		Non-functional disable/enable buttons present in GTM wide IP members page

Application Security Manager Fixes

ID Number	Severity	Solution Article(s)	Description
996381-3	2-Critical		ASM attack signature may not match as expected
970329-3	2-Critical		ASM hardening
965229-2	2-Critical		ASM Load hangs after upgrade★
957965-1	2-Critical		Request is blocked by 'CSRF attack detected' violation with 'CSRF token absent'
898365-1	2-Critical		XML Policy cannot be imported
854001-2	2-Critical		TMM might crash in case of trusted bot signature and API protected url
791669-2	2-Critical		TMM might crash when Bot Defense is configured for multiple domains
1017645-2	2-Critical		False positive HTTP compliance violation
986937-1	3-Major		Cannot create child policy when the signature staging setting is not equal in template and parent policy
981785-3	3-Major		Incorrect incident severity in Event Correlation statistics
981069-1	3-Major		Reset cause: "Internal error ( requested abort (payload release error))"
964245-2	3-Major		ASM reports and enforces username always
963485-1	3-Major		Performance issue with data guard
963461-1	3-Major		ASM performance drop on the response side
962589-2	3-Major		Full Sync Requests Caused By Failed Relayed Call to delete_suggestion
962497	3-Major		BD crash after ICAP response
955017-2	3-Major		Excessive CPU consumption by asm_config_event_handler
954425-2	3-Major		Hardening of Live-Update
951133-2	3-Major		Live Update does not work properly after upgrade★
950917-1	3-Major		Apply Policy fails due to internal signature overlap following ASU ASM-SignatureFile_20200917_175034
946081-1	3-Major		Getcrc tool help displays directory structure instead of version
928717-3	3-Major		[ASM - AWS] - ASU fails to sync
922261-2	3-Major		WebSocket server messages are logged even it is not configured
920197-3	3-Major		Brute force mitigation can stop mitigating without a notification
912089-2	3-Major		Some roles are missing necessary permission to perform Live Update
907337-2	3-Major		BD crash on specific scenario
888289-1	3-Major		Add option to skip percent characters during normalization
883853-2	3-Major		Bot Defense Profile with staged signatures prevents signature update★
867825-4	3-Major		Export/Import on a parent policy leaves children in an inconsistent state
862793-1	3-Major		ASM replies with JS-Challenge instead of blocking page upon "Virus detected" violation
846181-3	3-Major		Request samples for some of the learning suggestions are not visible
837333-1	3-Major		User cannot update blocking response pages after upgrade★
830341-2	3-Major		False positives Mismatched message key on ASM TS cookie
802873-2	3-Major		Manual changes to policy imported as XML may introduce corruption for Login Pages
673272-2	3-Major		Search by "Signature ID is" does not return results for some signature IDs
1022269-2	3-Major		False positive RFC compliant violation
1005105-1	3-Major		Requests are missing on traffic event logging
1000741-3	3-Major		Fixing issue with input normalization
952509-2	4-Minor		Cross origin AJAX requests are blocked in case there is no Origin header
944441-2	4-Minor		BD_XML logs memory usage at TS_DEBUG level
941929-2	4-Minor		Google Analytics shows incorrect stats, when Google link is redirected.
941625-1	4-Minor		BD sometimes encounters errors related to TS cookie building
941249-2	4-Minor		Improvement to getcrc tool to print cookie names when cookie attributes are involved
911729-2	4-Minor		Redundant learning suggestion to set a Maximum Length when parameter is already at that value
1004537-1	4-Minor		Traffic Learning: Accept actions for multiple suggestions not localized

Application Visibility and Reporting Fixes

ID Number	Severity	Solution Article(s)	Description
965581-2	2-Critical		Statistics are not reported to BIG-IQ
932485-3	3-Major		Incorrect sum(hits_count) value in aggregate tables
913085-1	3-Major		Avrd core when avrd process is stopped or restarted
909161-3	3-Major		A core file is generated upon avrd process restart or stop
833113-6	3-Major		Avrd core when sending large messages via https

Access Policy Manager Fixes

ID Number	Severity	Solution Article(s)	Description
934393-2	1-Blocking		APM authentication fails due to delay in sessionDB readiness
995029-3	2-Critical		Configuration is not updated during auto-discovery
981273-2	2-Critical		APM webtop hardening
891505-3	2-Critical		TMM might leak memory when OAuth agent is used in APM per-request policy subroutine.
874949-1	2-Critical		TMM may crash if traffic is run through APM per-request policy containing an empty variable assign agent.
997641	3-Major		APM policy ending with redirection results in policy execution failure
984765-1	3-Major		APM NTLM auth fails every week with RPC return code 0xC0000022(STATUS_ACCESS_DENIED)★
946125-2	3-Major		Tmm restart adds 'Revoked' tokens to 'Active' token count
924521-2	3-Major		OneConnect does not work when WEBSSO is enabled/configured.
903573	3-Major		AD group cache query performance
896125-2	3-Major		Reuse Windows Logon Credentials feature does not work with modern access policies
894885-3	3-Major		[SAML] SSO crash while processing client SSL request
881641	3-Major		Errors on VPN client status window in non-English environment
869653-1	3-Major		VCMP guest secondary blade restarts when creating multiple APM profiles in a single transaction
866109-2	3-Major		JWK keys frequency does not support fewer than 60 minutes
827325-1	3-Major		JWT token verification failure
825493-1	3-Major		JWT token verification failure
738865-6	3-Major		MCPD might enter into loop during APM config validation
470346-3	3-Major		Some IPv6 client connections get RST when connecting to APM virtual
1001041-3	3-Major		Reset cause 'Illegal argument'
939877-1	4-Minor		OAuth refresh token not found
747234-7	4-Minor		Macro policy does not find corresponding access-profile directly

Service Provider Fixes

ID Number	Severity	Solution Article(s)	Description
993913-2	2-Critical		TMM SIGSEGV core in Message Routing Framework
974881-2	2-Critical		Tmm crash with SNAT iRule configured with few supported/unsupported events with diameter traffic
1007821-1	2-Critical		SIP message routing may cause tmm crash
996113-1	3-Major		SIP messages with unbalanced escaped quotes in headers are dropped
989753-2	3-Major		In HA setup, standby fails to establish connection to server
957029-1	3-Major		MRF Diameter loop-detection is enabled by default
805821-3	3-Major		GTP log message contains no useful information
788625-1	3-Major		A pool member is not marked up by the inband monitor even after successful connection to the pool member
1008561-1	3-Major		In very rare condition, BIG-IP may crash when SIP ALG is deployed
919301-3	4-Minor		GTP::ie count does not work with -message option
916781-1	4-Minor		Validation error while attaching DoS profile to GTP virtual
913413-3	4-Minor		'GTP::header extension count' iRule command returns 0

Advanced Firewall Manager Fixes

ID Number	Severity	Solution Article(s)	Description
987637-2	1-Blocking		DDoS: Single endpoint flood vectors and Bad destination not supported properly on Neuron hardware
1016633	2-Critical		iprep.protocol with auto-detect fails when DNS takes time to resolve
992213-2	3-Major		Protocol Any displayed as HOPTOPT in AFM policy view
988761-1	3-Major		Cannot create Protected Object in GUI
988005-1	3-Major		Zero active rules counters in GUI
987605-2	3-Major		DDoS: ICMP attacks are not hardware-mitigated
759799-3	3-Major		New rules cannot be compiled
685904-1	3-Major		Firewall Rule hit counts are not auto-updated after a Reset is done
1016309-1	3-Major		When two policies with the same properties are configured with geo property, the geo for the second policy is ignored.
1012521-2	3-Major		BIG-IP UI file permissions
1012413-3	3-Major		Tmm performance impact for DDoS vector on virtual server when hardware mitigation is enabled
1000405-2	3-Major		VLAN/Tunnels not listed when creating a new rule via GUI
977005-1	4-Minor		Network Firewall Policy rules-list showing incorrect 'Any' for source column
1014609	4-Minor		Tunnel_src_ip support for dslite event log for type field list

Policy Enforcement Manager Fixes

ID Number	Severity	Solution Article(s)	Description
1019481	2-Critical		Unable to provision PEM on VELOS platform

Carrier-Grade NAT Fixes

ID Number	Severity	Solution Article(s)	Description
994985-2	3-Major		CGNAT GUI shows blank page when applying SIP profile

Traffic Classification Engine Fixes

ID Number	Severity	Solution Article(s)	Description
968741-1	2-Critical		Traffic Intelligence pages not visible
913453-5	2-Critical		URL Categorization: wr_urldbd cores while processing urlcat-query
901041-3	2-Critical		CEC update using incorrect method of determining number of blades in VIPRION chassis★
893721-2	2-Critical		PEM-provisioned systems may suffer random tmm crashes after upgrading★
958085-3	3-Major		IM installation fails with error: Spec file not found★
948573-4	3-Major		Wr_urldbd list of valid TLDs needs to be updated
846601-4	3-Major		Traffic classification does not update when an inactive slot becomes active after upgrade★
974205-3	4-Minor		Unconstrained wr_urldbd size causing box to OOM

Device Management Fixes

ID Number	Severity	Solution Article(s)	Description
970829-5	2-Critical	K03310534	iSeries LCD incorrectly displays secure mode

Protocol Inspection Fixes

ID Number	Severity	Solution Article(s)	Description
1018145-1	3-Major		Firewall Manager user role is not allowed to configure/view protocol inspection profiles

Guided Configuration Fixes

ID Number	Severity	Solution Article(s)	Description
1013569	3-Major		Hardening of iApps processing

In-tmm monitors Fixes

ID Number	Severity	Solution Article(s)	Description
822245-2	4-Minor		Large number of in-TMM monitors results in some monitors being marked down

Cumulative fixes from BIG-IP v15.1.3.1 that are included in this release

Vulnerability Fixes

ID Number	CVE	Solution Article(s)	Description
989317-12	CVE-2021-23023	K33757590	Windows Edge Client does not follow best practice
989009-3	CVE-2021-23033	K05314769	BD daemon may crash while processing WebSocket traffic
981461-4	CVE-2021-23032	K45407662	Unspecified DNS responses cause TMM crash
980125-3	CVE-2021-23030	K42051445	BD Daemon may crash while processing WebSocket traffic
962341	CVE-2021-23028	K00602225	BD crash while processing JSON content
946377-2	CVE-2021-23027	K24301698	HSM WebUI Hardening
1007049-3	CVE-2021-23034	K30523121	TMM may crash while processing DNS traffic
996753-2	CVE-2021-23050	K44553214	ASM BD process may crash while processing HTML traffic
984613-11	CVE-2021-23022	K08503505	CVE-2020-5896 - Edge Client Installer Vulnerability
968349	CVE-2021-23048	K19012930	TMM crashes with unspecified message
962069-3	CVE-2021-23047	K79428827	Excessive resource consumption while processing OSCP requests via APM
950017-2	CVE-2021-23045	K94941221	TMM may crash while processing SCTP traffic
942701-2	CVE-2021-23044	K35408374	TMM may consume excessive resources while processing HTTP traffic
906377-2	CVE-2021-23038	K61643620	iRulesLX hardening
1015381-5	CVE-2021-23022	K08503505	Windows Edge Client does not follow best practices while installing
1009773	CVE-2021-23051	K01153535	AWS deployments of TMM may crash while processing traffic

Functional Change Fixes

ID Number	Severity	Solution Article(s)	Description
737692-4	2-Critical		Handle x520 PF DOWN/UP sequence automatically by VE
1024421-1	3-Major		At failover, ePVA flush leads to clock advancing and MPI timeout messages in TMM log

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
994801-3	3-Major		SCP file transfer system
958465-2	3-Major		in BIG-IP Virtual Edition, TMM may prematurely shut down during initialization
950849-4	3-Major		B4450N blades report page allocation failure.★
948717-3	3-Major		F5-pf_daemon_cond_restart uses excessive CPU★
1032001-1	3-Major		Statemirror address can be configured on management network or clusterd restarting
1006345-1	3-Major		Static mac entry on trunk is not programmed on CPU-only blades

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
1019081-3	2-Critical	K97045220	HTTP/2 hardening
980821-2	3-Major		Traffic is processed by All Port Virtual Server instead of Specific Virtual Server that is configured.

Application Security Manager Fixes

ID Number	Severity	Solution Article(s)	Description
943913-3	2-Critical	K30150004	ASM attack signature does not match

Application Visibility and Reporting Fixes

ID Number	Severity	Solution Article(s)	Description
1020705-1	4-Minor		tmsh show analytics dos-l3 report view-by attack-id" shows "allowed-requests-per-second" instead "attack_type_name

Access Policy Manager Fixes

ID Number	Severity	Solution Article(s)	Description
999317-8	2-Critical	K03544414	Running Diagnostics report for Edge Client on Windows does not follow best practice

Advanced Firewall Manager Fixes

ID Number	Severity	Solution Article(s)	Description
1019453-3	3-Major		Core generated for autodosd daemon when synchronization process is terminated

Traffic Classification Engine Fixes

ID Number	Severity	Solution Article(s)	Description
976365	3-Major		Traffic Classification hardening★

Cumulative fixes from BIG-IP v15.1.3 that are included in this release

Vulnerability Fixes

ID Number	CVE	Solution Article(s)	Description
980809-2	CVE-2021-23031	K41351250	ASM REST Signature Rule Keywords Tool Hardening
959121-4	CVE-2021-23015	K74151369	Not following best practices in Guided Configuration Bundle Install worker
943081-3	CVE-2021-23009	K90603426	Unspecified HTTP/2 traffic may cause TMM to crash
935433-2	CVE-2021-23026	K53854428	iControl SOAP
882633-2	CVE-2021-23008	K51213246	Active Directory authentication does not follow current best practices
990333-5	CVE-2021-23016	K75540265	APM may return unexpected content when processing HTTP requests
975465-2	CVE-2021-23049	K65397301	TMM may consume excessive resources while processing DNS iRules
954429-2	CVE-2021-23014	K23203045	User authorization changes for live update
948769-5	CVE-2021-23013	K05300051	TMM panic with SCTP traffic
945109-2	CVE-2015-9382	K46641512	Freetype Parser Skip Token Vulnerability CVE-2015-9382
938233-2	CVE-2021-23042	K93231374	An unspecified traffic pattern can lead to high memory accumulation and high CPU utilization
937637-3	CVE-2021-23002	K71891773	BIG-IP APM VPN vulnerability CVE-2021-23002
937365-2	CVE-2021-23041	K42526507	LTM UI does not follow best practices
907245-1	CVE-2021-23040	K94255403	AFM UI Hardening
907201-2	CVE-2021-23039	K66782293	TMM may crash when processing IPSec traffic
877109-1	CVE-2021-23012	K04234247	Unspecified input can break intended functionality in iHealth proxy
842829-1	CVE-2018-16300 CVE-2018-14881 CVE-2018-14882 CVE-2018-16230 CVE-2018-16229 CVE-2018-16227 CVE-2019-15166 CVE-2018-16228 CVE-2018-16451 CVE-2018-16452 CVE-2018-10103 CVE-2018-10105 CVE-2018-14468	K04367730	Multiple tcpdump vulnerabilities
832757	CVE-2017-18551	K48073202	Linux kernel vulnerability CVE-2017-18551
803933-7	CVE-2018-20843	K51011533	Expat XML parser vulnerability CVE-2018-20843
718189-9	CVE-2021-23011	K10751325	Unspecified IP traffic can cause low-memory conditions
1003557-3	CVE-2021-23015	K74151369	Not following best practices in Guided Configuration Bundle Install worker
1003105-3	CVE-2021-23015	K74151369	iControl Hardening
1002561-5	CVE-2021-23007	K37451543	TMM vulnerability CVE-2021-23007
825413-4	CVE-2021-23053	K36942191	ASM may consume excessive resources when matching signatures

Functional Change Fixes

ID Number	Severity	Solution Article(s)	Description
933777-1	3-Major		Context use and syntax changes clarification
930005-2	3-Major		Recover previous QUIC cwnd value on spurious loss
913829-4	3-Major		i15000, i15800, i5000, i7000, i10000, i11000 and B4450 blades may lose efficiency when source ports form an arithmetic sequence
794417-4	3-Major		Modifying enforce-tls-requirements to enabled on the HTTP/2 profile when renegotiation is enabled on the client-ssl profile should cause validation failure but does not★
918097-3	4-Minor		Cookies set in the URI on Safari

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
995629-3	2-Critical		Loading UCS files may hang if ASM is provisioned★
990849-2	2-Critical		Loading UCS with platform-migrate option hangs and requires exiting from the command★
908517-3	2-Critical		LDAP authenticating failures seen because of 'Too many open file handles at client (nslcd)'
888341-7	2-Critical		HA Group failover may fail to complete Active/Standby state transition
886693-3	2-Critical		System may become unresponsive after upgrading★
860349-3	2-Critical		Upgrading from previous versions to 14.1 or creating a new configuration with user-template, which involves the usage of white-space character, will result in failed authentication
785017-3	2-Critical		Secondary blades go offline after new primary is elected
776393-3	2-Critical		Restjavad restarts frequently due to insufficient memory with relatively large configurations
969213-1	3-Major		VMware: management IP cannot be customized via net.mgmt.addr property
963049-1	3-Major		Unexpected config loss when modifying protected object
963017-2	3-Major		The tpm-status-check service shows System Integrity Status: Invalid when Engineering Hotfix installed
946745-2	3-Major		'System Integrity: Invalid' after Engineering Hotfix installation
945265-4	3-Major		BGP may advertise default route with incorrect parameters
939541-2	3-Major		TMM may prematurely shut down during initialization when a lot of TMMs and interfaces are configured on a VE
936125-2	3-Major		SNMP request times out after configuring IPv6 trap destination
934941-2	3-Major		Platform FIPS power-up self test failures not logged to console
934065-1	3-Major		The turboflex-low-latency and turboflex-dns are missing.
927941-5	3-Major		IPv6 static route BFD does not come up after OAMD restart
922297-2	3-Major		TMM does not start when using more than 11 interfaces with more than 11 vCPUs
914245-2	3-Major		Reboot after tmsh load sys config changes sys FPGA firmware-config value
914081-1	3-Major		Engineering Hotfixes missing bug titles
913433-3	3-Major		On blade failure, some trunked egress traffic is dropped.
908021-1	3-Major		Management and VLAN MAC addresses are identical
896553-3	3-Major		On blade failure, some trunked egress traffic is dropped.
896473-2	3-Major		Duplicate internal connections can tear down the wrong connection
893885-3	3-Major		The tpm-status command returns: 'System Integrity: Invalid' after Engineering Hotfix installation
891337-1	3-Major		'save_master_key(master): Not ready to save yet' errors in the logs
889029-2	3-Major		Unable to login if LDAP user does not have search permissions
879829-2	3-Major		HA daemon sod cannot bind to ports numbered lower than 1024
876805-3	3-Major		Modifying address-list resets the route advertisement on virtual servers.
862937-3	3-Major		Running cpcfg after first boot can result in daemons stuck in restart loop★
839121-3	3-Major	K74221031	A modified default profile that contains SSLv2, COMPAT, or RC2 cipher will cause the configuration to fail to load on upgrade★
829821-1	3-Major		Mcpd may miss its high availability (HA) heartbeat if a very large amount of pool members are configured
820845-3	3-Major		Self-IP does not respond to ( ARP / Neighbour Discovery ) when EtherIP tunnels in use.
809205-6	3-Major		CVE-2019-3855: libssh2 Vulnerability
803237-2	3-Major		PVA does not validate interface MTU when setting MSS
799001-1	3-Major		Sflow agent does not handle disconnect from SNMPD manager correctly
787885-2	3-Major		The device status is falsely showing as forced offline on the network map while actual device status is not.
749007-1	3-Major		South Sudan, Sint Maarten, and Curacao country missing in GTM region list
692218-1	3-Major		Audit log messages sent from the primary blade to the secondaries should not be logged.
675911-12	3-Major	K13272442	Different sections of the GUI can report incorrect CPU utilization
615934-6	3-Major		Overwrite flag in various iControl key/certificate management functions is ignored and might result in errors.
569859-7	3-Major		Password policy enforcement for root user when mcpd is not available
966277-1	4-Minor		BFD down on multi-blade system
959889-2	4-Minor		Cannot update firewall rule with ip-protocol property as 'any'
947865-2	4-Minor		Pam-authenticator crash - pam_tacplus segfault or sigabort in tac_author_read
887505-1	4-Minor		Coreexpiration script improvement
879189-1	4-Minor		Network map shows 'One or more profiles are inactive due to unprovisioned modules' in Profiles section

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
910653-5	2-Critical		iRule parking in clientside/serverside command may cause tmm restart
882157-1	2-Critical		One thread of pkcs11d consumes 100% without any traffic.
738964-4	2-Critical		Instruction logger debugging enhancement
1001509	2-Critical	K11162395	Client going through to BIG-IP SSL forward proxy might not be able to trust forged certificates
968641-2	3-Major		Fix for zero LACP priority
953845-1	3-Major		After re-initializing the onboard FIPS HSM, BIG-IP may lose access after second MCPD restart
946953-1	3-Major		HTTP::close used in iRule might not close connection.
928857-2	3-Major		Use of OCSP responder may leak X509 store instances
928805-2	3-Major		Use of OCSP responder may cause memory leakage
928789-2	3-Major		Use of OCSP responder may leak SSL handshake instances
921881-2	3-Major		Use of IPFIX log destination can result in increased CPU utilization
921721-1	3-Major		FIPS 140-2 SP800-56Arev3 compliance
889601-3	3-Major	K14903688	OCSP revocation not properly checked
889165-3	3-Major		"http_process_state_cx_wait" errors in log and connection reset
888517-2	3-Major		Network Driver Abstraction Layer (NDAL) busy polling leads to high CPU.★
858701-1	3-Major		Running config and saved config are having different route-advertisement values after upgrading from 11.x/12.x★
845333-6	3-Major		An iRule with a proc referencing a datagroup cannot be assigned to Transport Config
842517-2	3-Major		CKR_OBJECT_HANDLE_INVALID error seen in logs and SSL handshake fails
785877-5	3-Major		VLAN groups do not bridge non-link-local multicast traffic.
767341-1	3-Major		If the size of a filestore file is smaller than the size reported by mcp, tmm can crash while loading the file.
756812-3	3-Major		Nitrox 3 instruction/request logger may fail due to SELinux permission error
696755-5	3-Major		HTTP/2 may truncate a response body when served from cache
804157-3	4-Minor		ICMP replies are forwarded with incorrect checksums causing them to be dropped
748333-5	4-Minor		DHCP Relay does not retain client source IP address for chained relay mode
743253-2	4-Minor		TSO in software re-segments L3 fragments.

Global Traffic Manager (DNS) Fixes

ID Number	Severity	Solution Article(s)	Description
960749-2	1-Blocking		TMM may crash when handling 'DNS Cache' or 'Network DNS Resolver' traffic
960437-2	2-Critical		The BIG-IP system may initially fail to resolve some DNS queries
971297-2	3-Major		DNSKEYS Type changed from external to internal and Keys are not stored in HSM after upgrade★
921625-2	3-Major		The certs extend function does not work for GTM/DNS sync group
863917-2	3-Major		The list processing time (xx seconds) exceeded the interval value. There may be too many monitor instances configured with a xx second interval.
858973-1	3-Major		DNS request matches less specific WideIP when adding new wildcard wideips
835209-3	3-Major		External monitors mark objects down
896861-2	4-Minor		PTR query enhancement for RESOLVER::name_lookup
885201-2	4-Minor		BIG-IP DNS (GTM) monitoring: 'CSSLSocket:: Unable to get the session"'messages appearing in gtm log

Application Security Manager Fixes

ID Number	Severity	Solution Article(s)	Description
846057-3	2-Critical		UCS backup archive may include unnecessary files
960369-2	3-Major		Negative value suggested in Traffic Learning as max value
956373-2	3-Major		ASM sync files not cleaned up immediately after processing
947341-1	3-Major		MySQL generates multiple error 24 (too many files open) for PRX.REQUEST_LOG DB tables files
941621-2	3-Major	K91414704	Brute Force breaks server's Post-Redirect-Get flow
929077-2	3-Major		Bot Defense allow list does not apply when using default Route Domain and XFF header
929001-3	3-Major	K48321015	ASM form handling improvements
928685-2	3-Major	K49549213	ASM Brute Force mitigation not triggered as expected
921677-2	3-Major		Deletion of bot-related ordered items via tmsh might cause errors when adding new items via GUI.
910253-2	3-Major		BD error on HTTP response after upgrade★
884425-2	3-Major		Creation of new allowed HTTP URL is not possible
868053-3	3-Major		Live Update service indicates update available when the latest update was already installed
867373-4	3-Major		Methods Missing From ASM Policy
864677-1	3-Major		ASM causes high mcpd CPU usage
856725-1	3-Major		Missing learning suggestion for "Illegal repeated parameter name" violation
964897-2	4-Minor		Live Update - Indication of "Update Available" when there is no available update
962817-2	4-Minor		Description field of a JSON policy overwrites policy templates description
956105-2	4-Minor		Websocket URLs content profiles are not created as expected during JSON Policy import
935293-2	4-Minor		'Detected Violation' Field for event logs not showing
922785-2	4-Minor		Live Update scheduled installation is not installing on set schedule
824093-5	4-Minor		Parameters payload parser issue

Application Visibility and Reporting Fixes

ID Number	Severity	Solution Article(s)	Description
981385-3	3-Major		AVRD does not send HTTP events to BIG-IQ DCD
949593-3	3-Major		Unable to load config if AVR widgets were created under '[All]' partition★
924945-3	3-Major		Fail to detach HTTP profile from virtual server
869049-4	3-Major		Charts discrepancy in AVR reports

Access Policy Manager Fixes

ID Number	Severity	Solution Article(s)	Description
894565-1	2-Critical		Autodosd.default crash with SIGFPE
879401-1	2-Critical	K90423190	Memory corruption during APM SAML SSO
976501-2	3-Major		Failed to establish VPN connection
952557-2	3-Major		Azure B2C Provider OAuth URLs are updated for B2Clogin.com
925573-6	3-Major		SIGSEGV: receiving a sessiondb callback response after the flow is aborted
916969-3	3-Major		Support of Microsoft Identity 2.0 platform
888145-2	3-Major		When BIG-IP is deployed as SAML SP, allow APM session variables to be used in entityID property
883577-4	3-Major		ACCESS::session irule command does not work in HTTP_RESPONSE event
831517-2	3-Major		TMM may crash when Network Access tunnel is used

WebAccelerator Fixes

ID Number	Severity	Solution Article(s)	Description
833213-1	3-Major		Conditional requests are served incorrectly with AAM policy in webacceleration profile

Service Provider Fixes

ID Number	Severity	Solution Article(s)	Description
982869-1	3-Major		With auto-init enabled for Message Routing peers, tmm crashes with floating point exception when tmm_total_active_npus value is 0
977053-2	3-Major		TMM crash on standby due to invalid MR router instance
966701-2	3-Major		Client connection flow is aborted when data is received by generic msg filter over sctp transport in BIG-IP
952545-2	3-Major		'Current Sessions' statistics of HTTP2 pool may be incorrect
913373-2	3-Major		No connection error after failover with MRF, and no connection mirroring

Advanced Firewall Manager Fixes

ID Number	Severity	Solution Article(s)	Description
945853-2	2-Critical		Tmm crash when multiple virtual servers are created, modified, or deleted in quick succession
969509-4	3-Major		Possible memory corruption due to DOS vector reset
965617-3	3-Major		HSB mitigation is not applied on BDoS signature with stress-based mitigation mode
963237-3	3-Major		Non-EDNS response with RCODE FORMERR are blocked by AFM MARFORM vector.
937749-3	3-Major		The 'total port blocks' value for NAT stats is limited to 64 bits of range
903561-3	3-Major		Autodosd returns small bad destination detection value when the actual traffic is high
887017-3	3-Major		The dwbld daemon consumes a large amount of memory
837233-3	3-Major		Application Security Administrator user role cannot use GUI to manage DoS profile
716746-3	3-Major		Possible tmm restart when disabling single endpoint vector while attack is ongoing
967889-1	4-Minor		Incorrect information for custom signature in DoS Protection:DoS Overview (non-http)
748561-2	4-Minor		Network Firewall : Active Rules page does not list active rule entries for firewall policies associated with any context

Carrier-Grade NAT Fixes

ID Number	Severity	Solution Article(s)	Description
928553-3	2-Critical		LSN64 with hairpinning can lead to a tmm core in rare circumstances
966681-1	3-Major		NAT translation failures while using SP-DAG in a multi-blade chassis

Fraud Protection Services Fixes

ID Number	Severity	Solution Article(s)	Description
998085-1	3-Major		BIG-IP DataSafe GUI does not save changes

Anomaly Detection Services Fixes

ID Number	Severity	Solution Article(s)	Description
932737-2	2-Critical		DNS & BADOS high-speed logger messages are mixed
922597-2	3-Major		BADOS default sensitivity of 50 creates false positive attack on some sites
914293-3	3-Major		TMM SIGSEGV and crash

Traffic Classification Engine Fixes

ID Number	Severity	Solution Article(s)	Description
874677-1	2-Critical		Traffic Classification auto signature update fails from GUI★

iApp Technology Fixes

ID Number	Severity	Solution Article(s)	Description
768085-4	4-Minor		Error in python script /usr/libexec/iAppsLX_save_pre line 79

Protocol Inspection Fixes

ID Number	Severity	Solution Article(s)	Description
964585-3	3-Major		"Non OK return code (400) received from API call" is logged for ProtocolInspection auto update
825501-3	3-Major		IPS IM package version is inconsistent on slot if it was installed or loaded when a slot was offline.★
964577-3	4-Minor		IPS automatic IM download not working as expected

BIG-IP Risk Engine Fixes

ID Number	Severity	Solution Article(s)	Description
969385-2	3-Major		Automatic attach/detach BeWAF policy to virtual server stops working for all virtual servers.

Cumulative fixes from BIG-IP v15.1.2.1 that are included in this release

Vulnerability Fixes

ID Number	CVE	Solution Article(s)	Description
975233-2	CVE-2021-22992	K52510511	Advanced WAF/ASM buffer-overflow vulnerability CVE-2021-22992
973333-5	CVE-2021-22991	K56715231	TMM buffer-overflow vulnerability CVE-2021-22991
955145-2	CVE-2021-22986	K03009991	iControl REST unauthenticated remote command execution vulnerability CVE-2021-22986
954381-2	CVE-2021-22986	K03009991	iControl REST unauthenticated remote command execution vulnerability CVE-2021-22986
953677-2	CVE-2021-22987, CVE-2021-22988	K18132488 K70031188	TMUI authenticated remote command execution vulnerabilities CVE-2021-22987 and CVE-2021-22988
951705-2	CVE-2021-22986	K03009991	iControl REST unauthenticated remote command execution vulnerability CVE-2021-22986
950077-2	CVE-2021-22987, CVE-2021-22988	K18132488 K70031188	TMUI authenticated remote command execution vulnerabilities CVE-2021-22987 and CVE-2021-22988
981169-2	CVE-2021-22994	K66851119	F5 TMUI XSS vulnerability CVE-2021-22994
953729-2	CVE-2021-22989, CVE-2021-22990	K56142644 K45056101	Advanced WAF/ASM TMUI authenticated remote command execution vulnerabilities CVE-2021-22989 and CVE-2021-22990
931837-1	CVE-2020-13817	K55376430	NTP has predictable timestamps
976925-2	CVE-2021-23002	K71891773	BIG-IP APM VPN vulnerability CVE-2021-23002
935401-2	CVE-2021-23001	K06440657	BIG-IP Advanced WAF and ASM iControl REST vulnerability CVE-2021-23001
743105-2	CVE-2021-22998	K31934524	BIG-IP SNAT vulnerability CVE-2021-22998

Functional Change Fixes

ID Number	Severity	Solution Article(s)	Description
867793-1	3-Major		BIG-IP sending the wrong trap code for BGP peer state

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
942497-1	2-Critical		Declarative onboarding unable to download and install RPM
940021-3	2-Critical		Syslog-ng hang may lead to unexpected reboot
932437-2	2-Critical		Loading SCF file does not restore files from tar file★
915305-5	2-Critical		Point-to-point tunnel flows do not refresh connection entries; traffic dropped/discarded
838713	2-Critical		LCD buttons are not responsive during End User Diagnostics 'Front Port LED Test'
829277-2	2-Critical		A Large /config folder can cause memory exhaustion during live-install★
739505-3	2-Critical		Automatic ISO digital signature checking not required when FIPS license active★
967745	3-Major		Last resort pool error for the modify command for Wide IP
956589-1	3-Major		The tmrouted daemon restarts and produces a core file
930905-4	3-Major		Management route lost after reboot.
904785-1	3-Major		Remotely authenticated users may experience difficulty logging in over the serial console
896817-2	3-Major		iRule priorities error may be seen when merging a configuration using the TMSH 'replace' verb
895837-3	3-Major		Mcpd crash when a traffic-matching-criteria destination-port-list is modified
865177-4	3-Major		Cert-LDAP returning only first entry in the sequence that matches san-other oid
842189-4	3-Major		Tunnels removed when going offline are not restored when going back online
830413-3	3-Major		Intermittent Virtual Edition deployment failure due to inability to access the ssh host key in Azure★
806073-1	3-Major		MySQL monitor fails to connect to MySQL Server v8.0
767737-4	3-Major		Timing issues during startup may make an HA peer stay in the inoperative state
853101-2	4-Minor		ERROR: syntax error at or near 'FROM' at character 17

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
926929-3	1-Blocking		RFC Compliance Enforcement lacks configuration availability
911041-3	2-Critical		Suspending iRule FLOW_INIT on a virtual-to-virtual flow leads to a crash
846217-3	2-Critical		Translucent vlan-groups set local bit in destination MAC address
841469-6	2-Critical		Application traffic may fail after an internal interface failure on a VIPRION system.
812525-1	2-Critical	K27551003	The BIG-IP system may not interpret an HTTP request the same way the target web server interprets it
974501-1	3-Major		Excessive memory usage by mirroring subsystem when remirroring
903581-1	3-Major		The pkcs11d process cannot recover under certain error condition
868209-3	3-Major		Transparent vlan-group with standard virtual-server does L2 forwarding instead of pool selection
863401-1	3-Major		QUIC congestion window sometimes increases inappropriately
858301-1	3-Major	K27551003	The BIG-IP system may not interpret an HTTP request the same way the target web server interprets it
858297-1	3-Major	K27551003	The BIG-IP system may not interpret an HTTP request the same way the target web server interprets it
858289-1	3-Major	K27551003	The BIG-IP system may not interpret an HTTP request the same way the target web server interprets it
858285-1	3-Major	K27551003	The BIG-IP system may not interpret an HTTP request the same way the target web server interprets it
818109-1	3-Major		Certain plaintext traffic may cause SSL Orchestrator to hang
773253-5	4-Minor		The BIG-IP may send VLAN failsafe probes from a disabled blade
738032-3	4-Minor		BIG-IP system reuses cached session-id after SSL properties of the monitor has been changed.

Global Traffic Manager (DNS) Fixes

ID Number	Severity	Solution Article(s)	Description
953393-2	1-Blocking		TMM crashes when performing iterative DNS resolutions.
891093-1	3-Major		iqsyncer does not handle stale pidfile
853585-1	4-Minor		REST Wide IP object presents an inconsistent lastResortPool value

Application Security Manager Fixes

ID Number	Severity	Solution Article(s)	Description
968421-2	2-Critical	K30291321	ASM attack signature doesn't matched
865289-1	2-Critical		TMM crash following DNS resolve with Bot Defense profile
913757-1	3-Major		Error viewing security policy settings for virtual server with FTP Protocol Security
758336-5	4-Minor		Incorrect recommendation in Online Help of Proactive Bot Defense

Application Visibility and Reporting Fixes

ID Number	Severity	Solution Article(s)	Description
934721-2	2-Critical		TMM core due to wrong assert
743826-2	3-Major		Incorrect error message: "Can't find pool []: Pool was not found" even though Pool member is defined with port any(0)
648242-6	3-Major	K73521040	Administrator users unable to access all partition via TMSH for AVR reports

Access Policy Manager Fixes

ID Number	Severity	Solution Article(s)	Description
896709-3	2-Critical		Add support for Restart Desktop for webtop in VMware VDI
924929-2	3-Major		Logging improvements for VDI plugin
899009	3-Major		Azure Active Directory deployment fails on BIG-IP 15.1
760629-5	3-Major		Remove Obsolete APM keys in BigDB

Service Provider Fixes

ID Number	Severity	Solution Article(s)	Description
939529-2	3-Major		Branch parameter not parsed properly when topmost via header received with comma separated values

Advanced Firewall Manager Fixes

ID Number	Severity	Solution Article(s)	Description
870381-1	2-Critical		Network Firewall Active Rule page does not load
919381-1	3-Major		Extend AFM subscriber aware policy rule feature to support multiple subscriber groups
870385-5	3-Major		TMM may restart under very heavy traffic load
906885-1	5-Cosmetic		Spelling mistake on AFM GUI Flow Inspector screen

Policy Enforcement Manager Fixes

ID Number	Severity	Solution Article(s)	Description
845313-3	2-Critical		Tmm crash under heavy load
941169-4	3-Major		Subscriber Management is not working properly with IPv6 prefix flows.
875401-2	3-Major		PEM subcriber lookup can fail for internet side new connections

Anomaly Detection Services Fixes

ID Number	Severity	Solution Article(s)	Description
915489-2	4-Minor		LTM Virtual Server Health is not affected by iRule Requests dropped

BIG-IP Risk Engine Fixes

ID Number	Severity	Solution Article(s)	Description
921181	3-Major		Wrong error message upon bad credential stuffing configuration

Cumulative fixes from BIG-IP v15.1.2 that are included in this release

Vulnerability Fixes

ID Number	CVE	Solution Article(s)	Description
943125-2	CVE-2021-23010	K18570111	ASM bd may crash while processing WebSocket traffic
941449-2	CVE-2021-22993	K55237223	BIG-IP Advanced WAF and ASM XSS vulnerability CVE-2021-22993
921337-2	CVE-2021-22976	K88230177	BIG-IP ASM WebSocket vulnerability CVE-2021-22976
916821-2	CVE-2021-22974	K68652018	iControl REST vulnerability CVE-2021-22974
882189-6	CVE-2020-5897	K20346072	BIG-IP Edge Client for Windows vulnerability CVE-2020-5897
882185-6	CVE-2020-5897	K20346072	BIG-IP Edge Client Windows ActiveX
881317-6	CVE-2020-5896	K15478554	BIG-IP Edge Client for Windows vulnerability CVE-2020-5896
881293-6	CVE-2020-5896	K15478554	BIG-IP Edge Client for Windows vulnerability CVE-2020-5896
939845-2	CVE-2021-23004	K31025212	BIG-IP MPTCP vulnerability CVE-2021-23004
939841-2	CVE-2021-23003	K43470422	BIG-IP MPTCP vulnerability CVE-2021-23003
924961-2	CVE-2019-20892	K45212738	CVE-2019-20892: SNMP Vulnerability
919989-2	CVE-2020-5947	K64571774	TMM does not follow TCP best practices
881445-7	CVE-2020-5898	K69154630	BIG-IP Edge Client for Windows vulnerability CVE-2020-5898
880361-1	CVE-2021-22973	K13323323	iRules LX vulnerability CVE-2021-22973
842717-6	CVE-2020-5855	K55102004	BIG-IP Edge Client for Windows vulnerability CVE-2020-5855
693360-2	CVE-2020-27721	K52035247	A virtual server status changes to yellow while still available
773693-7	CVE-2020-5892	K15838353	CVE-2020-5892: APM Client Vulnerability

Functional Change Fixes

ID Number	Severity	Solution Article(s)	Description
920961-2	3-Major		Devices incorrectly report 'In Sync' after an incremental sync
756139-3	3-Major		Inconsistent logging of hostname files when hostname contains periods
754924-1	3-Major		New VLAN statistics added.
921421-3	4-Minor		iRule support to get/set UDP's Maximum Buffer Packets

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
957337-1	2-Critical		Tab complete in 'mgmt' tree is broken
933409-2	2-Critical		Tomcat upgrade via Engineering Hotfix causes live-update files removal★
927033-2	2-Critical		Installer fails to calculate disk size of destination volume★
910201-3	2-Critical		OSPF - SPF/IA calculation scheduling might get stuck infinitely
829677-2	2-Critical		.tmp files in /var/config/rest/ may cause /var directory exhaustion
796601-2	2-Critical		Invalid parameter in errdefsd while processing hostname db_variable
943669-1	3-Major		B4450 blade reboot
935801-4	3-Major		HSB diagnostics are not provided under certain types of failures
932233-2	3-Major		'@' no longer valid in SNMP community strings
930741-2	3-Major		Truncated or incomplete upload of a BIG-IP image causes kernel lockup and reboot
920301-1	3-Major		Unnecessarily high number of JavaScript Obfuscator instances when device is busy
911809-2	3-Major		TMM might crash when sending out oversize packets.
902401-5	3-Major		OSPFd SIGSEGV core when 'ospf clear' is done on remote device
898705-5	3-Major		IPv6 static BFD configuration is truncated or missing
889041-3	3-Major		Failover scripts fail to access resolv.conf due to permission issues
879405-1	3-Major		Incorrect value in Transparent Nexthop property
867181-1	3-Major		ixlv: double tagging is not working
865241-1	3-Major		Bgpd might crash when outputting the results of a tmsh show command: "sh bgp ipv6 ::/0"
860317-3	3-Major		JavaScript Obfuscator can hang indefinitely
858197-2	3-Major		Merged crash when memory exhausted
846441-2	3-Major		Flow-control is reset to default for secondary blade's interface
846137-4	3-Major		The icrd returns incorrect route names in some cases
843597-1	3-Major		Ensure the system does not set the VE's MTU higher than the vmxnet3 driver can handle
841649-4	3-Major		Hardware accelerated connection mismatch resulting in tmm core
838901-4	3-Major		TMM receives invalid rx descriptor from HSB hardware
826905-3	3-Major		Host traffic via IPv6 route pool uses incorrect source address
816229-3	3-Major		Kernel Log Messages Logged Twice
811053-6	3-Major		REBOOT REQUIRED prompt appears after failover and clsh reboot
811041-7	3-Major		Out of shmem, increment amount in /etc/ha_table/ha_table.conf
810821-3	3-Major		Management interface flaps after rebooting the device
789181-5	3-Major		Link Status traps are not issued on VE based BIG-IP systems
755197-5	3-Major		UCS creation might fail during frequent config save transactions
754932-1	3-Major		New SNMP MIB, sysVlanIfcStat, for VLAN statistics.
737098-1	3-Major		ASM Sync does not work when the configsync IP address is an IPv6 address
933461-4	4-Minor		BGP multi-path candidate selection does not work properly in all cases.
924429-2	4-Minor		Some large UCS archives may fail to restore due to the system reporting incorrect free disk space values
892677-1	4-Minor		Loading config file with imish adds the newline character
882713-3	4-Minor		BGP SNMP trap has the wrong sysUpTime value
583084-6	4-Minor	K15101680	iControl produces 404 error while creating records successfully

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
941089-3	2-Critical		TMM core when using Multipath TCP
915957-1	2-Critical		The wocplugin may get into a restart loop when AAM is provisioned
908873-1	2-Critical		Incorrect MRHTTP proxy handling of passthrough mode in certain scenarios may lead to tmm core
908621-2	2-Critical		Incorrect proxy handling of passthrough mode in certain scenarios may lead to tmm core
891849-1	2-Critical		Running iRule commands while suspending iRule commands that are running can lead to a crash
876801-5	2-Critical		Tmm crash: invalid route type
866481-2	2-Critical		TMM may sometimes core when HTTP-MR proxy attempts to go into passthrough mode
851345-1	2-Critical		The TMM may crash in certain rare scenarios involving HTTP/2
850873-3	2-Critical		LTM global SNAT sets TTL to 255 on egress.
726518-1	2-Critical		Tmsh show command terminated with CTRL-C can cause TMM to crash.
705768-2	2-Critical		The dynconfd process may core and restart with multiple DNS name servers configured
949145-5	3-Major		Improve TCP's response to partial ACKs during loss recovery
948757-2	3-Major		A snat-translation address responds to ARP requests but not to ICMP ECHO requests.
940209	3-Major		Chunked responses with congested client connection may result in server-side TCP connections hanging until timeout.
939961-2	3-Major		TCP connection is closed when necessary after HTTP::respond iRule.
934993-2	3-Major		BIG-IP resets HTTP/2 connections when a peer exceeds a number of concurrent streams
932033	3-Major		Chunked response may have DATA frame with END_STREAM prematurely
915605-6	3-Major	K56251674	Image install fails if iRulesLX is provisioned and /usr mounted read-write★
913249-2	3-Major		Restore missing UDP statistics
901929-2	3-Major		GARPs not sent on virtual server creation
892941-2	3-Major	K20105555	F5 SSL Orchestrator may fail to stop an attacker from exfiltrating data on a compromised client system (SNIcat)
888113-3	3-Major		TMM may core when the HTTP peer aborts the connection
879413-1	3-Major		Statsd fails to start if one or more of its *.info files becomes corrupted
878925-2	3-Major		SSL connection mirroring failover at end of TLS handshake
860005-1	3-Major		Ephemeral nodes/pool members may be created for wrong FQDN name
857845-1	3-Major		TMM crashes when 'server drained' or 'client drained' errors are triggered via an iRule
850145-1	3-Major		Connection hangs since pipelined HTTP requests are incorrectly queued in the proxy and not processed
820333-1	3-Major		LACP working member state may be inconsistent when blade is forced offline
809701-7	3-Major		Documentation for HTTP::proxy is incorrect: 'HTTP::proxy dest' does not exist
803233-1	3-Major		Pool may temporarily become empty and any virtual server that uses that pool may temporarily become unavailable
790845-4	3-Major		An In-TMM monitor may be incorrectly marked down when CMP-hash setting is not default
724824-1	3-Major		Ephemeral nodes on peer devices report as unknown and unchecked after full config sync
714642-2	3-Major		Ephemeral pool-member state on the standby is down
935593-4	4-Minor		Incorrect SYN re-transmission handling with FastL4 timestamp rewrite
895153	4-Minor		HTTP::has_responded returns incorrect values when using HTTP/2
883105-1	4-Minor		HTTP/2-to-HTTP/2 virtual server with translate-address disabled does not connect
808409-4	4-Minor		Unable to specify if giaddr will be modified in DHCP relay chain
859717-2	5-Cosmetic		ICMP-limit-related warning messages in /var/log/ltm

Global Traffic Manager (DNS) Fixes

ID Number	Severity	Solution Article(s)	Description
918169-1	2-Critical		The GTM/DNS HTTPS monitor may fail to mark a service up when the SSL session undergoes an unclean shutdown.
916753-2	2-Critical		RESOLV::lookup returns empty string when querying against a local virtual server, and results in possible tmm core
905557-1	2-Critical		Logging up/down transition of DNS/GTM pool resource via HSL can trigger TMM failure
850509-1	2-Critical		Zone Trusted Signature inadequately maintained, following change of master key
837637-1	2-Critical	K02038650	Orphaned bigip_gtm.conf can cause config load failure after upgrading★
926593-2	3-Major		GTM/DNS: big3d gateway_icmp probe for IPv6 incorrectly returns 'state: timeout'
852101-1	3-Major		Monitor fails.
844689-1	3-Major		Possible temporary CPU usage increase with unusually large named.conf file
746348-4	3-Major		On rare occasions, gtmd fails to process probe responses originating from the same system.
644192-2	3-Major	K23022557	Query of "MX" "any" RR of CNAME wide IP results in NXDOMAIN

Application Security Manager Fixes

ID Number	Severity	Solution Article(s)	Description
940249-2	2-Critical		Sensitive data is not masked after "Maximum Array/Object Elements" is reached
927617-2	2-Critical		'Illegal Base64 value' violation is detected for cookies that have a valid base64 value
941853-1	3-Major		Logging Profiles do not disassociate from virtual server when multiple changes are made
940897-3	3-Major		Violations are detected for incorrect parameter in case of "Maximum Array/Object Elements" is reached
918933-2	3-Major	K88162221	The BIG-IP ASM system may not properly perform signature checks on cookies
913137-1	3-Major		No learning suggestion on ASM policies enabled via LTM policy
904053-2	3-Major		Unable to set ASM Main Cookie/Domain Cookie hashing to Never
893061-2	3-Major		Out of memory for restjavad
882769-1	3-Major		Request Log: wrong filter applied when searching by Response contains or Response does not contain
919001-2	4-Minor		Live Update: Update Available notification is shown twice in rare conditions
896285-2	4-Minor		No parent entity in suggestion to add predefined-filetype as allowed filetype

Application Visibility and Reporting Fixes

ID Number	Severity	Solution Article(s)	Description
924301-1	3-Major		Incorrect values in REST response for DNS/SIP

Access Policy Manager Fixes

ID Number	Severity	Solution Article(s)	Description
910097-2	2-Critical		Changing per-request policy while tmm is under traffic load may drop heartbeats
924857-1	3-Major		Logout URL with parameters resets TCP connection
914649-3	3-Major		Support USB redirection through VVC (VMware virtual channel) with BlastX
739570-4	3-Major		Unable to install EPSEC package★
833049-4	4-Minor		Category lookup tool in GUI may not match actual traffic categorization
766017-6	4-Minor		[APM][LocalDB] Local user database instance name length check inconsistencies★

Advanced Firewall Manager Fixes

ID Number	Severity	Solution Article(s)	Description
942581-1	1-Blocking		Timestamp cookies do not work with hardware accelerated flows
938165-1	2-Critical		TMM Core after attempted update of IP geolocation database file
938149-1	3-Major		Port Block Update log message is missing the "Start time" field
910417-2	3-Major		TMM core may be seen when reattaching a vector to a DoS profile
872049-1	3-Major		Incorrect DoS static vectors mitigation threshold in multiplier based mode after run relearn thresholds command
871985-1	3-Major		No hardware mitigation for DoS attacks in auto-threshold mode with enabled attacked destinations detection
851745-3	3-Major		High cpu consumption due when enabling large number of virtual servers
840809-2	3-Major		If "lsn-legacy-mode" is set to disabled, then LSN_PB_UPDATE events are not logged

Policy Enforcement Manager Fixes

ID Number	Severity	Solution Article(s)	Description
842989-6	3-Major		PEM: tmm could core when running iRules on overloaded systems

Anomaly Detection Services Fixes

ID Number	Severity	Solution Article(s)	Description
944785-2	3-Major		Admd restarting constantly. Out of memory due to loading malformed state file
923125-2	3-Major		Huge amount of admd processes caused oom

Cumulative fixes from BIG-IP v15.1.1 that are included in this release

Vulnerability Fixes

ID Number	CVE	Solution Article(s)	Description
935721-5	CVE-2020-8622, CVE-2020-8623, CVE-2020-8624	K82252291	ISC BIND Vulnerabilities: CVE-2020-8622, CVE-2020-8623, CVE-2020-8624
935029-3	CVE-2020-27720	K04048104	TMM may crash while processing IPv6 NAT traffic
933741-2	CVE-2021-22979	K63497634	BIG-IP FPS XSS vulnerability CVE-2021-22979
932065-2	CVE-2021-22978	K87502622	iControl REST vulnerability CVE-2021-22978
931513-3	CVE-2021-22977	K14693346	TMM vulnerability CVE-2021-22977
928321-1	CVE-2020-27719	K19166530	K19166530: XSS vulnerability CVE-2020-27719
917509-3	CVE-2020-27718	K58102101	BIG-IP ASM vulnerability CVE-2020-27718
911761-2	CVE-2020-5948	K42696541	F5 TMUI XSS vulnerability CVE-2020-5948
908673-5	CVE-2020-27717	K43850230	TMM may crash while processing DNS traffic
904165-1	CVE-2020-27716	K51574311	BIG-IP APM vulnerability CVE-2020-27716
879745-4	CVE-2020-5942	K82530456	TMM may crash while processing Diameter traffic
876353-1	CVE-2020-5941	K03125360	iRule command RESOLV::lookup may cause TMM to crash
839453-6	CVE-2019-10744	K47105354	lodash library vulnerability CVE-2019-10744
834257-1	CVE-2020-5931	K25400442	TMM may crash when processing HTTP traffic
814953	CVE-2020-5940	K43310520	TMUI dashboard hardening
754855-7	CVE-2020-27714	K60344652	TMM may crash while processing FastL4 traffic with the Protocol Inspection Profile
928037-2	CVE-2020-27729	K15310332	APM Hardening
919841-3	CVE-2020-27728	K45143221	AVRD may crash while processing Bot Defense traffic
917469-2	CVE-2020-5946	K53821711	TMM may crash while processing FPS traffic
912969-2	CVE-2020-27727	K50343630	iAppsLX REST vulnerability CVE-2020-27727
910017-2	CVE-2020-5945	K21540525	Security hardening for the TMUI Interface page
905125-2	CVE-2020-27726	K30343902	Security hardening for APM Webtop
904937-2	CVE-2020-27725	K25595031	Excessive resource consumption in zxfrd
889557-1	CVE-2019-11358	K20455158	jQuery Vulnerability CVE-2019-11358
880001-1	CVE-2020-5937	K58290051	TMM may crash while processing L4 behavioral DoS traffic
870273-5	CVE-2020-5936	K44020030	TMM may consume excessive resources when processing SSL traffic
868349-1	CVE-2020-5935	K62830532	TMM may crash while processing iRules with MQTT commands
858349-3	CVE-2020-5934	K44808538	TMM may crash while processing SAML SLO traffic
848405-2	CVE-2020-5933	K26244025	TMM may consume excessive resources while processing compressed HTTP traffic
839761-1	CVE-2020-5932	K12002065	Response Body preview hardening
778049-2	CVE-2018-13405	K00854051	Linux Kernel Vulnerability: CVE-2018-13405
887637-2	CVE-2019-3815	K22040951	Systemd-journald Vulnerability: CVE-2019-3815
852929-6	CVE-2020-5920	K25160703	AFM WebUI Hardening
818213-4	CVE-2019-10639	K32804955	CVE-2019-10639: KASLR bypass using connectionless protocols
818177-6	CVE-2019-12295	K06725231	CVE-2019-12295 Wireshark Vulnerability
858537-2	CVE-2019-1010204	K05032915	CVE-2019-1010204: Binutilis Vulnerability
834533-7	CVE-2019-15916	K57418558	Linux kernel vulnerability CVE-2019-15916

Functional Change Fixes

ID Number	Severity	Solution Article(s)	Description
912289-1	2-Critical		Cannot roll back after upgrading on certain platforms★
890229-1	3-Major		Source port preserve setting is not honored
858189-3	3-Major		Make restnoded/restjavad/icrd timeout configurable with sys db variables.
719338-1	4-Minor		Concurrent management SSH connections are unlimited

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
864513-1	1-Blocking	K48234609	ASM policies may not load after upgrading to 14.x or later from a previous major version★
896217-2	2-Critical		BIG-IP GUI unresponsive
876957-1	2-Critical		Reboot after tmsh load sys config changes sys FPGA firmware-config value
871561-5	2-Critical		Software installation on vCMP guest fails with '(Software compatibility tests failed.)' or '(The requested product/version/build is not in the media.)'★
860517-1	2-Critical		MCPD may crash on startup with many thousands of monitors on a system with many CPUs.
818253-3	2-Critical		Generate signature files for logs
805417-3	2-Critical		Unable to enable LDAP system auth profile debug logging
706521-2	2-Critical	K21404407	The audit forwarding mechanism for TACACS+ uses an unencrypted db variable to store the password
593536-9	2-Critical	K64445052	Device Group with incremental ConfigSync enabled might report 'In Sync' when devices have differing configurations
924493-2	3-Major		VMware EULA has been updated
921361-2	3-Major		SSL client and SSL server profile names truncated in GUI
915825-2	3-Major		Configuration error caused by Drafts folder in a deleted custom partition while upgrading.
904845-2	3-Major		VMware guest OS customization works only partially in a dual stack environment.
904705-2	3-Major		Cannot clone Azure marketplace instances.
898461-2	3-Major		Several SCTP commands unavailable for some MRF iRule events :: 'command is not valid in current event context'
886689-6	3-Major		Generic Message profile cannot be used in SCTP virtual
880625-3	3-Major		Check-host-attr enabled in LDAP system-auth creates unusable config
880165-2	3-Major		Auto classification signature update fails
867013-2	3-Major		Fetching ASM policy list from the GUI (in LTM policy rule creation) occasionally causes REST timeout
850777-3	3-Major		BIG-IP VE deployed on cloud provider may be unable to reach metadata services with static management interface config
838297-2	3-Major		Remote ActiveDirectory users are unable to login to the BIG-IP using remote LDAP authentication
828789-1	3-Major		Display of Certificate Subject Alternative Name (SAN) limited to 1023 characters
807337-5	3-Major		Config utility (web UI) output differs between tmsh and AS3 when the pool monitor is changed.
788577-7	3-Major		BFD sessions may be reset after CMP state change
759564-2	3-Major		GUI not available after upgrade
740589-4	3-Major		Mcpd crash with core after 'tmsh edit /sys syslog all-properties'
719555-3	3-Major		Interface listed as 'disable' after SFP insertion and enable
489572-5	3-Major	K60934489	Sync fails if file object is created and deleted before sync to peer BIG-IP
921369	4-Minor		Signature verification for logs fails if the log files are modified during log rotation
914761-3	4-Minor		Crontab backup to save UCS ends with Unexpected Error: UCS saving process failed.
906889-4	4-Minor		Incorrect totals for New Flows under Security :: Debug :: Flow Inspector :: Get Flows.
902417-2	4-Minor		Configuration error caused by Drafts folder in a deleted custom partition★
890277-3	4-Minor		Full config sync to a device group operation takes a long time when there are a large number of partitions.
864757-3	4-Minor		Traps that were disabled are enabled after configuration save
822377-6	4-Minor		CVE-2019-10092: httpd mod_proxy cross-site scripting vulnerability
779857-2	4-Minor		Misleading GUI error when installing a new version in another partition★
751103-2	4-Minor		TMSH: 'tmsh save sys config' prompts question when display threshold is configured which is causing scripts to stop
849085-1	5-Cosmetic		Lines with only asterisks filling message and user.log file
714176-1	5-Cosmetic		UCS restore may fail with: Decryption of the field (privatekey) for object (9717) failed

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
889209-2	2-Critical		Sflow receiver configuration may lead to egress traffic dropped after TMM starts.
879409-3	2-Critical		TMM core with mirroring traffic due to unexpected interface name length
858429-3	2-Critical		BIG-IP system sending ICMP packets on both virtual wire interface
851857-1	2-Critical		HTTP 100 Continue handling does not work when it arrives in multiple packets
851581-3	2-Critical		Server-side detach may crash TMM
842937-6	2-Critical		TMM crash due to failed assertion 'valid node'
932825-2	3-Major		Delayed Gratuitous ARPs may cause traffic to go to the previous active BIG-IP device
915713-2	3-Major		Support QUIC and HTTP3 draft-29
915689-1	3-Major		HTTP/2 dynamic header table may fail to identify indexed headers on the response side.
915281-2	3-Major		Do not rearm TCP Keep Alive timer under certain conditions
892385	3-Major		HTTP does not process WebSocket payload when received with server HTTP response
883529-1	3-Major		HTTP/2 Method OPTIONS allows '*' (asterisk) as an only value for :path
851789-2	3-Major		SSL monitors flap with client certs with private key stored in FIPS
851477-1	3-Major		Memory allocation failures during proxy initialization are ignored leading to TMM cores
851045-1	3-Major		LTM database monitor may hang when monitored DB server goes down
830797-3	3-Major		Standby high availability (HA) device passes traffic through virtual wire
825689-1	3-Major		Enhance FIPS crypto-user storage
816881-2	3-Major		Serverside conection may use wrong VLAN when virtual wire is configured
801497-3	3-Major		Virtual wire with LACP pinning to one link in trunk.
932937-2	4-Minor		HTTP Explicit Proxy configurations can result in connections hanging until idle timeout.
926997-1	4-Minor		QUIC HANDSHAKE_DONE profile statistics are not reset
852373-3	4-Minor		HTTP2::disable or enable breaks connection when used in iRule and logs Tcl error
814037-6	4-Minor		No virtual server name in Hardware Syncookie activation logs.

Global Traffic Manager (DNS) Fixes

ID Number	Severity	Solution Article(s)	Description
919553-2	2-Critical		GTM/DNS monitors based on the TCP protocol may fail to mark a service up when the server's response spans multiple packets.
788465-5	2-Critical		DNS cache idx synced across HA group could cause tmm crash
783125-1	2-Critical		iRule drop command on DNS traffic without Datagram-LB may cause TMM crash
898093-2	3-Major		Removing one member from a WideIP removes it from all WideIPs.
869361-1	3-Major		Link Controller inbound wide IP load balancing method incorrectly presented in GUI when updated

Application Security Manager Fixes

ID Number	Severity	Solution Article(s)	Description
868641-3	2-Critical		Possible TMM crash when disabling bot profile for the entire connection
843801-2	2-Critical		Like-named previous Signature Update installations block Live Update usage after upgrade★
918081-1	3-Major		Application Security Administrator role cannot create parent policy in the GUI
913761-2	3-Major		Security - Options section in navigation menu is visible for only Administrator users
903357-2	3-Major		Bot defense Profile list is loads too slow when there are 750 or more Virtual servers
901061-2	3-Major		Safari browser might be blocked when using Bot Defense profile and related domains.
898741-2	3-Major		Missing critical files causes FIPS-140 system to halt upon boot
892637-1	3-Major		Microservices cannot be added or modified
888285-1	3-Major	K18304067	Sensitive positional parameter not masked in 'Referer' header value
888261-1	3-Major		Policy created with declarative WAF does not use updated template.
881757-1	3-Major		Unnecessary HTML response parsing and response payload is not compressed
880753-3	3-Major	K38157961	Possible issues when using DoSL7 and Bot Defense profile on the same virtual server
879777-3	4-Minor		Retreive browser cookie from related domain instead of performing another Bot Defense browser verification challenge

Application Visibility and Reporting Fixes

ID Number	Severity	Solution Article(s)	Description
908065-2	3-Major		Logrotation for /var/log/avr blocked by files with .1 suffix
819301-2	3-Major		Incorrect values in REST response for dos-l3 table
866613-4	4-Minor		Missing MaxMemory Attribute

Access Policy Manager Fixes

ID Number	Severity	Solution Article(s)	Description
886729-2	2-Critical		Intermittent TMM crash in per-request-policy allow-ending agent
838861-3	2-Critical		TMM might crash once after upgrading SSL Orchestrator★
579219-5	2-Critical		Access keys missing from SessionDB after multi-blade reboot.
892937-2	3-Major	K20105555	F5 SSL Orchestrator may fail to stop an attacker from exfiltrating data on a compromised client system (SNIcat)
857589-1	3-Major		On Citrix Workspace app clicking 'Refresh Apps' after signing out fails with message 'Refresh Failed'
771961-3	3-Major		While removing SSL Orchestrator from the SSL Orchestrator user interface, TMM can core
747020-2	3-Major		Requests that evaluate to same subsession can be processed concurrently
679751-2	4-Minor		Authorization header can cause a connection reset

Service Provider Fixes

ID Number	Severity	Solution Article(s)	Description
868781-1	2-Critical		TMM crashes while processing MRF traffic
898997-2	3-Major		GTP profile and GTP::parse iRules do not support information element larger than 2048 bytes
891385-2	3-Major		Add support for URI protocol type "urn" in MRF SIP load balancing
697331-2	3-Major		Some TMOS tools for querying various DBs fail when only a single TMM is running
924349-2	4-Minor		DIAMETER MRF is not compliance with RFC 6733 for Host-ip-Address AVP over SCTP

Advanced Firewall Manager Fixes

ID Number	Severity	Solution Article(s)	Description
872645-2	3-Major		Protected Object Aggregate stats are causing elevated CPU usage
852289-4	3-Major	K23278332	DNS over TCP packet is not rate-limited accurately by DoS device sweep/flood vector
789857	3-Major		"TCP half open' reports drops made by LTM syn-cookies mitigation.
920361-2	4-Minor		Standby device name sent in Traffic Statistics syslog/Splunk messages

Fraud Protection Services Fixes

ID Number	Severity	Solution Article(s)	Description
876581-2	3-Major		JavaScript engine file is empty if the original HTML page cached for too long
891729-2	4-Minor		Errors in datasyncd.log★
759988-2	4-Minor		Geolocation information inconsistently formatted
940401-2	5-Cosmetic		Mobile Security 'Rooting/Jailbreak Detection' now reads 'Rooting Detection'

Cumulative fixes from BIG-IP v15.1.0.5 that are included in this release

Vulnerability Fixes

ID Number	CVE	Solution Article(s)	Description
912221-1	CVE-2020-12662 CVE-2020-12663	K37661551	CVE-2020-12662 & CVE-2020-12663
900905-3	CVE-2020-5926	K42830212	TMM may crash while processing SIP data
888417-5	CVE-2020-8840	K15320518	Apache Vulnerability: CVE-2020-8840
883717-1	CVE-2020-5914	K37466356	BD crash on specific server cookie scenario
841577-2	CVE-2020-5922	K20606443	iControl REST hardening
838677-1	CVE-2019-10744	K47105354	lodash library vulnerability CVE-2019-10744
837773-7	CVE-2020-5912	K12936322	Restjavad Storage and Configuration Hardening
788057-3	CVE-2020-5921	K00103216	MCPD may crash while processing syncookies
917005-5	CVE-2020-8619	K19807532	ISC BIND Vulnerability: CVE-2020-8619
909837-1	CVE-2020-5950	K05204103	TMM may consume excessive resources when AFM is provisioned
902141-1	CVE-2020-5919	K94563369	TMM may crash while processing APM data
898949-1	CVE-2020-27724	K04518313	APM may consume excessive resources while processing VPN traffic
888489-2	CVE-2020-5927	K55873574	ASM UI hardening
886085-5	CVE-2020-5925	K45421311	BIG-IP TMM vulnerability CVE-2020-5925
872673-1	CVE-2020-5918	K26464312	TMM can crash when processing SCTP traffic
856961-7	CVE-2018-12207	K17269881	INTEL-SA-00201 MCE vulnerability CVE-2018-12207
837837-2	CVE-2020-5917	K43404629	F5 SSH server key size vulnerability CVE-2020-5917
832885-1	CVE-2020-5923	K05975972	Self-IP hardening
830481-1	CVE-2020-5916	K29923912	SSL TMUI hardening
816413-5	CVE-2019-1125	K31085564	CVE-2019-1125: Spectre SWAPGS Gadget
811789-7	CVE-2020-5915	K57214921	Device trust UI hardening
888493-2	CVE-2020-5928	K40843345	ASM GUI Hardening
748122-8	CVE-2018-15333	K53620021	BIG-IP Vulnerability CVE-2018-15333
746091-8	CVE-2019-19151	K21711352	TMSH Vulnerability: CVE-2019-19151
717276-9	CVE-2020-5930	K20622530	TMM Route Metrics Hardening
839145-3	CVE-2019-10744	K47105354	CVE-2019-10744: lodash vulnerability

Functional Change Fixes

ID Number	Severity	Solution Article(s)	Description
816233-1	2-Critical		Session and authentication cookies should use larger character set
890421-2	3-Major		New traps were introduced in 15.0.1.2 for Georedundancy with previously assigned trap numbers★
691499-5	3-Major		GTP::ie primitives in iRule to be certified
745465-4	4-Minor		The tcpdump file does not provide the correct extension

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
934241-2	1-Blocking		TMM may core when using FastL4's hardware offloading feature
891477-3	2-Critical		No retransmission occurs on TCP flows that go through a BWC policy-enabled virtual server
890513-2	2-Critical		MCPD fails to load configuration from binary database
849405-2	2-Critical		LTM v14.1.2.1 does not log after upgrade★
842865-2	2-Critical		Add support for Auto MAC configuration (ixlv)
739507-3	2-Critical		Improve recovery method for BIG-IP system that has halted from a failed FIPS integrity check
927901-4	3-Major		After BIG-IP reboot, vxnet interfaces come up as uninitialized
915497-2	3-Major		New Traffic Class Page shows multiple question marks.
907549-1	3-Major		Memory leak in BWC::Measure
891721-3	3-Major		Anti-Fraud Profile URLs with query strings do not load successfully
888497-2	3-Major		Cacheable HTTP Response
887089-1	3-Major		Upgrade can fail when filenames contain spaces
877145-4	3-Major		Unable to log in to iControl REST via /mgmt/toc/, restjavad throwing NullPointerException
871657-1	3-Major		Mcpd crash when adding NAPTR GTM pool member with a flag of uppercase A or S
844085-1	3-Major		GUI gives error when attempting to associate address list as the source address of multiple virtual servers with the same destination address
842125-6	3-Major		Unable to reconnect outgoing SCTP connections that have previously aborted
821309-1	3-Major		After an initial boot, mcpd has a defunct child "systemctl" process
814585-1	3-Major		PPTP profile option not available when creating or modifying virtual servers in GUI
807005-5	3-Major		Save-on-auto-sync is not working as expected with large configuration objects
802685-2	3-Major		Unable to configure performance HTTP virtual server via GUI
797829-6	3-Major		The BIG-IP system may fail to deploy new or reconfigure existing iApps
785741-3	3-Major	K19131357	Unable to login using LDAP with 'user-template' configuration
760622-5	3-Major		Allow Device Certificate renewal from BIG-IP Configuration Utility
405329-3	3-Major		The imish utility cores while checking help strings for OSPF6 vertex-threshold
919745-2	4-Minor		CSV files downloaded from the Dashboard have the first row with all 'NaN
918209-3	4-Minor		GUI Network Map icons color scheme is not section 508 compliant
851393-1	4-Minor		Tmipsecd leaves a zombie rm process running after starting up
804309-1	4-Minor		[api-status-warning] are generated at stderr and /var/log/ltm when listing config with all-properties argument
713614-7	4-Minor		Virtual address (/Common/10.10.10.10) shares address with floating self IP (/Common/10.10.10.10), so traffic-group is being kept at (/Common/traffic-group-local-only)
767269-5	5-Cosmetic		Linux kernel vulnerability: CVE-2018-16884

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
925989	2-Critical		Certain BIG-IP appliances with HSMs cannot upgrade to v15.1.0.4★
839749-3	2-Critical		Virtual server with specific address list might fail to create via GUI
715032-1	2-Critical	K73302459	iRulesLX Hardening
916589-2	3-Major		QUIC drops 0RTT packets if CID length changes
910521-2	3-Major		Support QUIC and HTTP draft-28
893281-3	3-Major		Possible ssl stall on closed client handshake
813701-6	3-Major		Proxy ARP failure
788753-2	3-Major		GATEWAY_ICMP monitor marks node down with wrong error code
786517-5	3-Major		Modifying a monitor Alias Address from the TMUI might cause failed config loads and send monitors to an incorrect address
720440-6	3-Major		Radius monitor marks pool members down after 6 seconds
914681-2	4-Minor		Value of tmm.quic.log.level can differ between TMSH and GUI
714502-3	4-Minor		bigd restarts after loading a UCS for the first time

Global Traffic Manager (DNS) Fixes

ID Number	Severity	Solution Article(s)	Description
789421-4	3-Major		Resource-administrator cannot create GTM server object through GUI
774257-4	5-Cosmetic		tmsh show gtm pool and tmsh show gtm wideip print duplicate object types

Application Security Manager Fixes

ID Number	Severity	Solution Article(s)	Description
904593-1	2-Critical		Configuration overwritten when using Cloud Auto Scaling template and ASM Automatic Live Update enabled
865461-1	2-Critical		BD crash on specific scenario
850641-2	2-Critical		Incorrect parameter created for names with non-ASCII characters in non-UTF8 policies
900797-2	3-Major		Brute Force Protection (BFP) hash table entry cleanup
900793-1	3-Major	K32055534	APM Brute Force Protection resources do not scale automatically
900789-2	3-Major		Alert before Brute Force Protection (BFP) hash are fully utilized
892653-1	3-Major		Unable to define Maximum Query String Size and Maximum Request Size fields for Splunk Logging Format in the GUI
880789-3	3-Major		ASMConfig Handler undergoes frequent restarts
874753-3	3-Major		Filtering by Bot Categories on Bot Requests Log shows 0 events
871905-2	3-Major	K02705117	Incorrect masking of parameters in event log
868721-1	3-Major		Transactions are held for a long time on specific server related conditions
863609-4	3-Major		Unexpected differences in child policies when using BIG-IQ to change learning mode on parent policies
854177-5	3-Major		ASM latency caused by frequent pool IP updates that are unrelated to ASM functionality
850677-4	3-Major		Non-ASCII static parameter values are garbled when created via REST in non-UTF-8 policy
848445-1	3-Major	K86285055	Global/URL/Flow Parameters with flag is_sensitive true are not masked in Referer★
833685-5	3-Major		Idle async handlers can remain loaded for a long time doing nothing
809125-5	3-Major		CSRF false positive
799749-2	3-Major		Asm logrotate fails to rotate
783165-1	3-Major		Bot Defense whitelists does not apply for url "Any" after modifying the Bot Defense profile
742549-3	3-Major		Cannot create non-ASCII entities in non-UTF ASM policy using REST
722337-2	3-Major		Always show violations in request log when post request is large
640842-5	3-Major		ASM end user using mobile might be blocked when CSRF is enabled

Application Visibility and Reporting Fixes

ID Number	Severity	Solution Article(s)	Description
828937-1	2-Critical	K45725467	Some systems can experience periodic high IO wait due to AVR data aggregation
902485-3	3-Major		Incorrect pool member concurrent connection value
841305-2	3-Major		HTTP/2 version chart reports are empty in GUI; error appears in GUI and reported in monpd log
838685-4	3-Major		DoS report exist in per-widget but not under individual virtual

Access Policy Manager Fixes

ID Number	Severity	Solution Article(s)	Description
884797-4	3-Major		Portal Access: in some cases data is not delivered via WebSocket connection

Service Provider Fixes

ID Number	Severity	Solution Article(s)	Description
904373-3	3-Major		MRF GenericMessage: Implement limit to message queues size
876953-2	3-Major		Tmm crash while passing diameter traffic
876077-1	3-Major		MRF DIAMETER: stale pending retransmission entries may not be cleaned up
868381-1	3-Major		MRF DIAMETER: Retransmission queue unable to delete stale entries
866021-1	3-Major		Diameter Mirror connection lost on the standby due to "process ingress error"
824149-5	3-Major		SIP ALG virtual with source-nat-policy cores if traffic does not match the source-nat-policy or matches the source-nat-policy which does not have source-translation configured
815877-2	3-Major		Information Elements with zero-length value are rejected by the GTP parser
696348-5	3-Major		"GTP::ie insert" and "GTP::ie append" do not work without "-message" option
788513-6	4-Minor		Using RADIUS::avp replace with variable produces RADIUS::avp replace USER-NAME $custom_name warning in log
793005-1	5-Cosmetic		'Current Sessions' statistic of MRF/Diameter pool may be incorrect

Advanced Firewall Manager Fixes

ID Number	Severity	Solution Article(s)	Description
802421-6	2-Critical		The /var partition may become 100% full requiring manual intervention to clear space
757279-3	3-Major		LDAP authenticated Firewall Manager role cannot edit firewall policies
896917	4-Minor		The fw_zone_stat 'Hits' field may not increment in some scenarios

Device Management Fixes

ID Number	Severity	Solution Article(s)	Description
839597-6	3-Major		Restjavad fails to start if provision.extramb has a large value

Cumulative fixes from BIG-IP v15.1.0.4 that are included in this release

Vulnerability Fixes

ID Number	CVE	Solution Article(s)	Description
900757-2	CVE-2020-5902	K52145254	TMUI RCE vulnerability CVE-2020-5902
895525-2	CVE-2020-5902	K52145254	TMUI RCE vulnerability CVE-2020-5902
909237-6	CVE-2020-8617	K05544642	CVE-2020-8617: BIND Vulnerability
909233-6	CVE-2020-8616	K97810133	DNS Hardening
905905-1	CVE-2020-5904	K31301245	TMUI CSRF vulnerability CVE-2020-5904
895993-2	CVE-2020-5902	K52145254	TMUI RCE vulnerability CVE-2020-5902
895981-2	CVE-2020-5902	K52145254	TMUI RCE vulnerability CVE-2020-5902
895881-1	CVE-2020-5903	K43638305	BIG-IP TMUI XSS vulnerability CVE-2020-5903
891457-2	CVE-2020-5939	K75111593	NIC driver may fail while transmitting data
859089-7	CVE-2020-5907	K00091341	TMSH allows SFTP utility access

Functional Change Fixes

None

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
909673	2-Critical		TMM crashes when VLAN SYN cookie feature is used on iSeries i2x00 and i4x00 platforms
882557-2	3-Major		TMM restart loop if virtio platform specifies RX or TX queue sizes that are too large (4096 or higher)
878893-3	3-Major		During system shutdown it is possible the for sflow_agent to core
858769-6	3-Major	K82498430	Net-snmp library must be upgraded to 5.8 in order to support SHA-2
829193-4	3-Major		REST system unavailable due to disk corruption
826265-5	3-Major		The SNMPv3 engineBoots value restarts at 1 after an upgrade
812493-4	3-Major		When engineID is reconfigured, snmp and alert daemons must be restarted★
810381-2	3-Major		The SNMP max message size check is being incorrectly applied.
743234-6	3-Major		Configuring EngineID for SNMPv3 requires restart of the SNMP and Alert daemons
774617-3	4-Minor		SNMP daemon reports integer truncation error for values greater than 32 bits

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
910177	2-Critical		Poor HTTP/3 throughput
848777-3	3-Major		Configuration for virtual server using shared object address-list in non-default partition in non-default route-domain does not sync to peer node.

Advanced Firewall Manager Fixes

ID Number	Severity	Solution Article(s)	Description
892621-1	3-Major		Mismatch between calculation for IPv6 packets size metric in BDoS in hardware and software

Cumulative fixes from BIG-IP v15.1.0.3 that are included in this release

Functional Change Fixes

ID Number	Severity	Solution Article(s)	Description
889505	3-Major		Added SNMP OIDs for gathering total number of PBAs and percentage of PBAs available
888569	3-Major		Added PBA stats for total number of free PBAs, and percent free PBAs

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
795649-5	3-Major		Loading UCS from one iSeries model to another causes FPGA to fail to load

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
883513-1	3-Major		Support for QUIC and HTTP/3 draft-27
828601-1	3-Major		IPv6 Management route is preferred over IPv6 tmm route
758599-3	3-Major		IPv6 Management route is preferred over IPv6 tmm route

Global Traffic Manager (DNS) Fixes

ID Number	Severity	Solution Article(s)	Description
846713-1	2-Critical		Gtm_add does not restart named

Access Policy Manager Fixes

ID Number	Severity	Solution Article(s)	Description
903905-2	2-Critical		Default configuration of security mechanism causes memory leak in TMM
889477-1	2-Critical		Modern customization does not enforce validation at password changing

Carrier-Grade NAT Fixes

ID Number	Severity	Solution Article(s)	Description
888625	3-Major		CGNAT PBA active port blocks counter is incorrect compared to actual allocated port blocks

Cumulative fixes from BIG-IP v15.1.0.2 that are included in this release

Vulnerability Fixes

ID Number	CVE	Solution Article(s)	Description
879025-2	CVE-2020-5913	K72752002	When processing TLS traffic, LTM may not enforce certificate chain restrictions
871633-1	CVE-2020-5859	K61367237	TMM may crash while processing HTTP/3 traffic
846917-1	CVE-2019-10744	K47105354	lodash Vulnerability: CVE-2019-10744
846365-1	CVE-2020-5878	K35750231	TMM may crash while processing IP traffic
830401-1	CVE-2020-5877	K54200228	TMM may crash while processing TCP traffic with iRules
819197-2	CVE-2019-13135	K20336394	BIGIP: CVE-2019-13135 ImageMagick vulnerability
819189-1	CVE-2019-13136	K03512441	BIGIP: CVE-2019-13136 ImageMagick vulnerability
636400	CVE-2019-6665	K26462555	CPB (BIG-IP->BIGIQ log node) Hardening
873469-2	CVE-2020-5889	K24415506	APM Portal Access: Base URL may be set to incorrectly
864109-1	CVE-2020-5889	K24415506	APM Portal Access: Base URL may be set to incorrectly
858025-1	CVE-2021-22984	K33440533	BIG-IP ASM Bot Defense open redirection vulnerability CVE-2021-22984
838881-1	CVE-2020-5853	K73183618	APM Portal Access Vulnerability: CVE-2020-5853
832021-3	CVE-2020-5888	K73274382	Port lockdown settings may not be enforced as configured
832017-3	CVE-2020-5887	K10251014	Port lockdown settings may not be enforced as configured
829121-1	CVE-2020-5886	K65720640	State mirroring default does not require TLS
829117-1	CVE-2020-5885	K17663061	State mirroring default does not require TLS
789921-5	CVE-2020-5881	K03386032	TMM may restart while processing VLAN traffic
868097-3	CVE-2020-5891	K58494243	TMM may crash while processing HTTP/2 traffic
846157-1	CVE-2020-5862	K01054113	TMM may crash while processing traffic on AWS
838909-3	CVE-2020-5893	K97733133	BIG-IP APM Edge Client vulnerability CVE-2020-5893
823893-7	CVE-2020-5890	K03318649	Qkview may fail to completely sanitize LDAP bind credentials

Functional Change Fixes

ID Number	Severity	Solution Article(s)	Description
870389-3	3-Major		Increase size of /var logical volume to 1.5 GiB for LTM-only VE images
858229-5	3-Major	K22493037	XML with sensitive data gets to the ICAP server

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
854493-5	2-Critical		Kernel page allocation failures messages in kern.log
841953-7	2-Critical		A tunnel can be expired when going offline, causing tmm crash
841581	2-Critical		License activation takes a long time to complete on Google GCE platform
841333-7	2-Critical		TMM may crash when tunnel used after returning from offline
817709-3	2-Critical		IPsec: TMM cored with SIGFPE in racoon2
811701-3	2-Critical		AWS instance using xnet driver not receiving packets on an interface.
811149-2	2-Critical		Remote users are unable to authenticate via serial console.
866925-5	3-Major		The TMM pages used and available can be viewed in the F5 system stats MIB
865225-1	3-Major		100G modules may not work properly in i15000 and i15800 platforms
852001-1	3-Major		High CPU utilization of MCPD when adding multiple devices to trust domain simultaneously
830717	3-Major		Appdata logical volume cannot be resized for some cloud images★
829317-5	3-Major		Memory leak in icrd_child due to concurrent REST usage
828873-3	3-Major		Unable to successfully deploy BIG-IP 15.0.0 on Nutanix AHV Hypervisor
812981-6	3-Major		MCPD: memory leak on standby BIG-IP device
802281-3	3-Major		Gossip shows active even when devices are missing
793121-5	3-Major		Enabling sys httpd redirect-http-to-https prevents vCMP host-to-guest communication
742628-1	3-Major		A tmsh session initiation adds increased control plane pressure
605675-6	3-Major		Sync requests can be generated faster than they can be handled
831293-5	4-Minor		SNMP address-related GET requests slow to respond.
755317-3	4-Minor		/var/log logical volume may run out of space due to agetty error message in /var/log/secure
722230-1	4-Minor		Cannot delete FQDN template node if another FQDN node resolves to same IP address

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
860881-3	2-Critical		TMM can crash when handling a compressed response from HTTP server
839401-1	2-Critical		Moving a virtual-address from one floating traffic-group to another does not send GARPs out.
837617-1	2-Critical		Tmm may crash while processing a compression context
872965-1	3-Major		HTTP/3 does not support draft-25
862597-7	3-Major		Improve MPTCP's SYN/ACK retransmission handling
853613-4	3-Major		Improve interaction of TCP's verified accept and tm.tcpsendrandomtimestamp
852873-2	3-Major		Proprietary Multicast PVST+ packets are forwarded instead of dropped
852861-1	3-Major		TMM cores intermittently when HTTP/3 tries to use uni-directional streams in 0-RTT scenario
851445-1	3-Major		QUIC with HTTP/3 should allow the peer to create at least 3 concurrent uni-streams
850973-1	3-Major		Improve QUIC goodput for lossy links
850933-1	3-Major		Improve QUIC rate pacing functionality
847325-3	3-Major		Changing a virtual server that uses a OneConnect profile can trigger incorrect persistence behavior.
818853-1	3-Major		Duplicate MAC entries in FDB
809597-5	3-Major		Memory leak in icrd_child observed during REST usage
714372-5	3-Major		Non-standard HTTP header Keep-Alive causes RST_STREAM in Safari
705112-6	3-Major		DHCP server flows are not re-established after expiration
859113-1	4-Minor		Using "reject" iRules command inside "after" may causes core
839245-3	4-Minor		IPother profile with SNAT sets egress TTL to 255
824365-5	4-Minor		Need informative messages for HTTP iRule runtime validation errors
822025	4-Minor		HTTP response not forwarded to client during an early response

Global Traffic Manager (DNS) Fixes

ID Number	Severity	Solution Article(s)	Description
760471-1	3-Major		GTM iQuery connections may be reset during SSL key renegotiation.

Application Security Manager Fixes

ID Number	Severity	Solution Article(s)	Description
852437-3	2-Critical	K25037027	Overly aggressive file cleanup causes failed ASU installation
846073-1	2-Critical		Installation of browser challenges fails through Live Update
850673-1	3-Major		BD sends bad ACKs to the bd_agent for configuration
842161-1	3-Major		Installation of Browser Challenges fails in 15.1.0
793017-3	3-Major		Files left behind by failed Attack Signature updates are not cleaned
778261-2	3-Major		CPB connection is not refreshed when updating BIG-IQ logging node domain name or certificate
739618-3	3-Major		When loading AWAF or MSP license, cannot set rule to control ASM in LTM policy
681010-4	3-Major	K33572148	'Referer' is not masked when 'Query String' contains sensitive parameter

Application Visibility and Reporting Fixes

ID Number	Severity	Solution Article(s)	Description
838709-4	2-Critical		Enabling DoS stats also enables page-load-time
870957-4	3-Major		"Security ›› Reporting : ASM Resources : CPU Utilization" shows TMM has 100% CPU usage
863161-1	3-Major		Scheduled reports are sent via TLS even if configured as non encrypted
835381-3	3-Major		HTTP custom analytics profile 'not found' when default profile is modified
830073-2	3-Major		AVRD may core when restarting due to data collection device connection timeout
865053-3	4-Minor		AVRD core due to a try to load vip lookup when AVRD is down
863069-1	4-Minor		Avrmail timeout is too small

Access Policy Manager Fixes

ID Number	Severity	Solution Article(s)	Description
876393-1	2-Critical		General database error while creating Access Profile via the GUI
871761-1	2-Critical		Unexpected FIN from APM virtual server during Access Policy evaluation if XML profile is configured for VS
871653-1	2-Critical		Access Policy cannot be created with 'modern' customization
866685-1	3-Major		Empty HSTS headers when HSTS mode for HTTP profile is disabled
866161-1	3-Major		Client port reuse causes RST when the security service attempts server connection reuse.
853325-1	3-Major		TMM Crash while parsing form parameters by SSO.
852313-4	3-Major		VMware Horizon client cannot connect to APM after some time if 'Kerberos Authentication' is configured
850277-1	3-Major		Memory leak when using OAuth
844781-3	3-Major		[APM Portal Access] SELinux policy does not allow rewrite plugin to create web applications trace troubleshooting data collection
844685-1	3-Major		Per-request policy is not exported if it contains HTTP Connector Agent
844573-1	3-Major		Incorrect log level for message when OAuth client or OAuth resource server fails to generate secret.
844281-3	3-Major		[Portal Access] SELinux policy does not allow rewrite plugin to read certificate files.
835309-1	3-Major		Some strings on BIG-IP APM Server pages are not localized
832881-1	3-Major		F5 Endpoint Inspection helper app is not updated
832569-3	3-Major		APM end-user connection reset
831781-4	3-Major		AD Query and LDAP Auth/Query fails with IPv6 server address in Direct mode
803825-5	3-Major		WebSSO does not support large NTLM target info length
761303-5	3-Major		Upgrade of standby BIG-IP system results in empty Local Database
744407-1	3-Major		While the client has been closed, iRule function should not try to check on a closed session
706782-5	3-Major		Inefficient APM processing in large configurations.

Service Provider Fixes

ID Number	Severity	Solution Article(s)	Description
853545-1	3-Major		MRF GenericMessage: Memory leaks if messages are dropped via iRule during GENERICMESSAGE_INGRESS event
842625-5	3-Major		SIP message routing remembers a 'no connection' failure state forever
840821-1	3-Major		SCTP Multihoming not working within MRF Transport-config connections
825013-1	3-Major		GENERICMESSAGE::message's src and dst may get cleared in certain scenarios
803809-4	3-Major		SIP messages fail to forward in MRF SIP when preserve-strict source port is enabled.
859721-1	4-Minor		Using GENERICMESSAGE create together with reject inside periodic after may cause core
836357-5	4-Minor		SIP MBLB incorrectly initiates new flow from virtual IP to client when existing flow is in FIN-wait2

Cumulative fixes from BIG-IP v15.1.0.1 that are included in this release

Functional Change Fixes

None

TMOS Fixes

ID Number	Severity	Solution Article(s)	Description
834853	3-Major		Azure walinuxagent has been updated to v2.2.42

Local Traffic Manager Fixes

ID Number	Severity	Solution Article(s)	Description
862557-1	3-Major		Client-ssl profiles derived from clientssl-quic fail validation

Cumulative fix details for BIG-IP v15.1.4 that are included in this release

999317-8 : Running Diagnostics report for Edge Client on Windows does not follow best practice

Solution Article: K03544414

Component: Access Policy Manager

Symptoms:
Running Diagnostics report for Edge Client on Windows does not follow best practice

Conditions:
Running Diagnostics report for Edge client on Windows system

Impact:
Edge client does not follow best practice

Workaround:
No workaround.

Fix:
Edge Client on Windows now follows best practice

998221-3 : Accessing pool members from configuration utility is slow with large config

Component: TMOS

Symptoms:
Accessing the pool members page from the BIG-IP Configuration Utility/GUI is slow compared with accessing Pool members from TMSH/CLI.

Conditions:
-- Accessing pool member information through the BIG-IP configuration utility.
-- Thousands of pools and pool members in the configuration.

Impact:
In the GUI, it takes approximately 20-30 seconds, whereas the CLI returns results in less than 1 second,

Managing pool members from configuration utility is very slow causing performance impact.

Workaround:
None

Fix:
Optimized the GUI query used for retrieving pool members data.

998085-1 : BIG-IP DataSafe GUI does not save changes

Component: Fraud Protection Services

Symptoms:
Due to a JavaScript error, the BIG-IP DataSafe GUI does not save changes.

Conditions:
-- Provision FPS.
-- License DataSafe.
-- Configure the system using the GUI.

Impact:
Configurations made for DataSafe using the BIG-IP Configuration Utility GUI cannot be saved.

Workaround:
Use tmsh to configure the BIG-IP system.

Fix:
BIG-IP DataSafe GUI is working properly and configurations are now saved.

997929-3 : Changing a Traffic Matching Criteria port from 'any' to another value can prevent a virtual server from processing traffic

Component: Local Traffic Manager

Symptoms:
If a virtual server is using a traffic-matching-criteria (TMC) with a destination-inline-port of zero ('any'), and this is later changed (either to a non-zero port value, or to a port-list with non-zero port values) the virtual server stops processing traffic.

If tmm is restarted (which causes an outage) the virtual server resumes accepting traffic using the new ports. In addition, changing the virtual server's port back to 'any' also causes traffic processing to resume.

Conditions:
-- A virtual server using an address list for its destination, and 'any' (zero) for its destination port.

-- Changing the virtual server's destination port to a non-zero value, or to a port-list with non-zero port values.

Impact:
The virtual server stops processing traffic.

Workaround:
To recover, you can do either of the following:

-- Restart tmm:
bigstart restart tmm

-- Change the virtual server's port back to 'any' (0).

997641 : APM policy ending with redirection results in policy execution failure

Component: Access Policy Manager

Symptoms:
After successful authentication, the APM end user client connection gets reset.

/var/log/apm shows errors:
err tmm2[18140]: 01490514:3: (null):Common:00000000: Access encountered error: ERR_VAL. File: ../modules/hudfilter/access/access.c, Function: access_rewrite_pdp_response_to_302, Line: 19766

Conditions:
Access policy has a path ending with a redirect.

Impact:
APM end user clients cannot access the backend resources protected by the policy.

Workaround:
None

Fix:
Fixed an issue with APM policies not working when they ended with redirect.

996753-2 : ASM BD process may crash while processing HTML traffic

Solution Article: K44553214

996593-2 : Password change through REST or GUI not allowed if the password is expired

Component: TMOS

Symptoms:
When trying to update the expired password through REST or the GUI, the system reports and error:

Authentication failed: Password expired. Update password via /mgmt/shared/authz/users.

Conditions:
-- Password is expired.
-- Password change is done through either REST or the GUI.

Impact:
Expired password cannot be updated through REST or the GUI.

Workaround:
Update password using tmsh:

tmsh modify auth password <username>

Fix:
You can now change an expired password through REST or the GUI.

996381-3 : ASM attack signature may not match as expected

Component: Application Security Manager

Symptoms:
When processing traffic with ASM, attack signature 200000128 may not match as expected.

Conditions:
- Attack signature 200000128 enabled.

Impact:
Processed traffic may not match all expected attack signatures

Workaround:
N/A

Fix:
Attack signature 200000128 now matches as expected.

996113-1 : SIP messages with unbalanced escaped quotes in headers are dropped

Component: Service Provider

Symptoms:
Dropped SIP messages.

Conditions:
-- MRF SIP virtual server
-- SIP Header Field has an escaped quote

Impact:
Certain SIP messages are not being passed via MRF.

Workaround:
None

995853-2 : Mixing IPv4 and IPv6 device IPs on GSLB server object results in nullGeneral database error.

Component: Global Traffic Manager (DNS)

Symptoms:
Unable to create GLSB Server object with both IPv4 and IPv6 self IPs as device IPs.

Conditions:
-- DNS and LTM services enabled.
-- Configure two self IPs on the box for IPv4 and IPv6.
-- GLSB Server object creation with IPv4 and IPv6 addresses in device tab along with Virtual Server Discovery enable.

Impact:
GSLB Server object creation fails.

Workaround:
TMSH is not impacted. Use TMSH to create GSLB Server objects.

Fix:
GSLB Server object creation no longer fails.

995629-3 : Loading UCS files may hang if ASM is provisioned★

Component: TMOS

Symptoms:
If a UCS file from a BIG-IP system running a different software version that also has an ASM configuration is loaded onto a device that already has ASM provisioned, the load may hang indefinitely.

Conditions:
-- A system that has ASM provisioned.
-- Loading a UCS file with an ASM configuration that comes from a different system.

Impact:
-- UCS load might fail.
-- Config save and load operations fail while the UCS load hangs. The failure of those operations may not be obvious, leaving the BIG-IP saved configuration different from the running configuration.

Workaround:
If you encounter this, run 'load sys config default' to de-provision ASM. The UCS file should then load successfully.

Note: If loading a UCS archive with the 'platform-migrate' argument, then there is no workaround. See: https://cdn.f5.com/product/bugtracker/ID990849.html

Fix:
Loading UCS files no longer hangs if ASM is provisioned.

995029-3 : Configuration is not updated during auto-discovery

Component: Access Policy Manager

Symptoms:
Auto-discovery fails, resulting in OAuth failure. In /var/log/apm:

-- OAuth Client: failed for server '<server>' using 'authorization_code' grant type (<grant type>), error: None of the configured JWK keys match the received JWT token

Conditions:
JSON Web Token (JWT) auto-discovery is enabled via JSON Web Keys (JWK).

Impact:
JWT auto-discovery fails and the configuration is not updated.

Workaround:
Use the GUI to manually retrieve the JWKs by clicking the 'Discovery' button for OpenID URI in 'Access :: Federation : OAuth Client / Resource Server : Provider :: <name of provider>.

Fix:
Fixed an issue with auto-discovery and JWKs.

994985-2 : CGNAT GUI shows blank page when applying SIP profile

Component: Carrier-Grade NAT

Symptoms:
The virtual server properties GUI page shows blank when a SIP profile is applied to the virtual server.

Conditions:
-- Create virtual server and attach a SIP profile.
-- Navigate to virtual server properties page.

Impact:
The virtual server properties page does not display the configuration.

Workaround:
None.

Fix:
The GUI shows virtual server config page with all config values

994801-3 : SCP file transfer system

Component: TMOS

Symptoms:
Under certain conditions, the SCP file transfer system does not follow current best practices.

Conditions:
A user assigned to a role, such as Resource Administrator, without Advanced Shell access can run arbitrary commands SCP file transfer.

Impact:
Users without Advanced Shell access can run SCP file trasnfer commands.

Workaround:
None

Fix:
This issue is fixed. The SCP file transfer system now follows current best practices. Users without Advanced Shell access cannot run SCP file transfer commands.

993913-2 : TMM SIGSEGV core in Message Routing Framework

Component: Service Provider

Symptoms:
TMM crashes on SIGSEGV.

Conditions:
This can occur while passing traffic through the message routing framework.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

993489-3 : GTM daemon leaks memory when reading GTM link objects

Component: Global Traffic Manager (DNS)

Symptoms:
The gtmd process memory consumption is higher than expected.

Conditions:
DNS is provisioned and a provisioned GTM link object has been loaded.

Impact:
Increased memory usage of the GTM daemon. This may impact other capabilities, such as starting sync operations.

Workaround:
None

992865 : Virtual server may not enter hardware SYN cookie mode on BIG-IP i11000 and i15000 series appliances

Component: TMOS

Symptoms:
On particular platforms, virtual servers do not correctly enter hardware SYN cookie mode. Software SYN cookie mode still functions correctly.

Conditions:
-- Virtual server under SYN flood attack.
-- One of the following platforms
+ BIG-IP i11000 series (C123)
+ BIG-IP i15000 series (D116)

Impact:
Software SYN cookies are enabled, this has a performance impact compared to the hardware mode.

Workaround:
None

Fix:
Virtual servers correctly enter hardware SYN cookie mode on all platforms.

992213-2 : Protocol Any displayed as HOPTOPT in AFM policy view

Component: Advanced Firewall Manager

Symptoms:
The 'any' option for the AFM policy rule protocol is displayed incorrectly in the GUI.

Conditions:
-- Create a rule and set protocol as 'any'.
-- Navigate to active rules.

Impact:
GUI shows an incorrect value.

Workaround:
None

Fix:
GUI Shows correct value for rule protocol option.

990849-2 : Loading UCS with platform-migrate option hangs and requires exiting from the command★

Component: TMOS

Symptoms:
The UCS loading process with platform-migrate stops responding and hangs after printing:

Platform migrate loaded successfully. Saving configuration.

Conditions:
Load UCS with platform-migrate option:
tmsh load sys ucs <ucs_name> platform-migrate

Note: If you are loading a UCS archive created on a system running a different software version that also has an ASM configuration, there are other other aspects to consider. See: https://cdn.f5.com/product/bugtracker/ID995629.html

Impact:
The UCS loading process stops responding, causing the device to be in an INOPERATIVE state.

Workaround:
None.

Fix:
Loading UCS with the platform-migrate option executes smoothly without getting stuck.

990333-5 : APM may return unexpected content when processing HTTP requests

Solution Article: K75540265

989753-2 : In HA setup, standby fails to establish connection to server

Component: Service Provider

Symptoms:
In a high availability (HA) setup, standby fails to establish a connection to the server with the log message:

err tmm[819]: 01850008:3: MR: Received HA message targeting missing transport-config

Conditions:
In MRF (diameter/SIP) HA setup with connection mirroring enabled.

Impact:
Standby BIG-IP system fails to establish a connection to the server.

Workaround:
None.

Fix:
Standby is now able to establish a connection to the server.

989317-12 : Windows Edge Client does not follow best practice

Solution Article: K33757590

989009-3 : BD daemon may crash while processing WebSocket traffic

Solution Article: K05314769

988793 : SecureVault on BIG-IP tenant does not store unit key securely

Component: TMOS

Symptoms:
BIG-IP tenants running on the VELOS platform do not store the SecureVault unit key securely.

Conditions:
BIG-IP tenant running on the VELOS platform.

Impact:
The BIG-IP tenant does not utilize secure storage for unit key.

Workaround:
None

Fix:
BIG-IP tenants running on the VELOS platform now securely store the unit key.

988761-1 : Cannot create Protected Object in GUI

Component: Advanced Firewall Manager

Symptoms:
GUI Page stuck in loading phase and never completes the Protected Object creation step

Conditions:
This occurs in normal operation

Impact:
Cannot create Protected Objects using the GUI

Workaround:
Use tmsh to create Protected Objects

Fix:
GUI Page no longer gets stuck in loading phase and completes the Protected Object creation step.

988645 : Traffic may be affected after tmm is aborted and restarted

Component: TMOS

Symptoms:
Traffic may be affected after tmm is aborted and restarted.
/var/log/tmm contains a lot of "DAG Proxy failed" messages.

Conditions:
-- A BIG-IP device is deployed in a VELOS tenant
-- Tmm aborts and restarts for some reason.

Impact:
Traffic disrupted while tmm restarts. Traffic may be disrupted even after tmm has restarted.

Workaround:
Reboot the tenant

Fix:
Fixed system behavior when tmm is aborted and restarted.

988005-1 : Zero active rules counters in GUI

Component: Advanced Firewall Manager

Symptoms:
When accessing Security :: Network Firewall :: Active Rules in UI, the active rules count is stuck at 0 (zero).

Conditions:
Access the following menu path:
Security :: Network Firewall :: Active Rules

Impact:
Incorrect information on active rules count is seen in the UI.

Workaround:
Disable firewall inline editor.

Fix:
The active rules count column now displays the correct number of times a rule has been hit.

987637-2 : DDoS: Single endpoint flood vectors and Bad destination not supported properly on Neuron hardware

Component: Advanced Firewall Manager

Symptoms:
BIG-IP systems mitigate traffic on all of the IP addresses in an address list when certain DoS vectors are detected on a virtual server.

Conditions:
-- BIG-IP hardware platform equipped with Neuron (BIG-IP iSeries)
-- Virtual server configured with a DoS profile
-- Flood traffic reaches the virtual server

Impact:
For Neuron-supported hardware, virtual servers with subnet destinations are not properly mitigated when flood vectors are detected.

Workaround:
None

987605-2 : DDoS: ICMP attacks are not hardware-mitigated

Component: Advanced Firewall Manager

Symptoms:
ICMP/Fragments attacks against a virtual server with a DOS profile are not mitigated by hardware.

Conditions:
ICMP/Fragments attacks mitigation/detection is configured on a virtual system with neuron-capable hardware.

Impact:
ICMP/Fragments attacks mitigation/detection is handled in software. A large volume of attack traffic can spike the tmm CPU.

Workaround:
None

Fix:
Until the hardware is fixed, the software uses the SPVA in hardware to mitigate these attacks.

987113-1 : CMP state degraded while under heavy traffic

Component: TMOS

Symptoms:
When a VELOS 8 blade system is under heavy traffic, the clustered multiprocessing (CMP) state could become degraded. The symptom could exhibit a dramatic traffic performance drop.

Conditions:
Exact conditions are unknown; the issue was observed while under heavy traffic with all 8 blades configured for a tenant.

Impact:
System performance drops dramatically.

Workaround:
Lower traffic load.

Fix:
Fixed an inconsistent CMP state.

986937-1 : Cannot create child policy when the signature staging setting is not equal in template and parent policy

Component: Application Security Manager

Symptoms:
When trying to create a child policy, you get an error:

FAILURE: "Could not update the Policy policy1. Inherited values may not be changed."

Conditions:
-- Parent policy created with signature staging disabled.
-- Creating a new child policy with that policy as a parent.

Impact:
You are unable to create the child policy and the system presents an error.

Workaround:
Create the policy without assigning it to the parent, and then assign it to the parent policy on the Inheritance Settings page.

Fix:
The error no longer occurs on child policy creation.

985537-1 : Upgrade Microsoft Hyper-V driver★

Component: TMOS

Symptoms:
BIG-IP Virtual Edition (VE) on Azure has an issue where the BIG-IP system raises a kernel panic soon after a Network Management Agent update occurs on the host.

When performance tests are run on VE in Microsoft Azure, the BIG-IP system loses all connectivity to the pools and becomes unresponsive.

Conditions:
-- Azure Host performs a Network Management Agent (NMAgent) update while TMM is running.
-- Running performance tests of VE in Azure.

Impact:
The BIG-IP system might restart and the GUI becomes unresponsive during performance testing.

Workaround:
None.

Fix:
The Microsoft Hyper-V driver has been updated to v4.3.5.

984765-1 : APM NTLM auth fails every week with RPC return code 0xC0000022(STATUS_ACCESS_DENIED)★

Component: Access Policy Manager

Symptoms:
NTLM User logon authentication fails every week with RPC return code 0xC0000022(STATUS_ACCESS_DENIED) from the Active Directory (AD) server.

Conditions:
-- Upgrading from legacy versions to BIG-IP v14.1.2 or later.
-- AD servers are updated with latest security patches from Microsoft.

Impact:
NTLM Authentication fails after a week. APM end user client logon (such as Outlook users, Remote Desktop Users, and Browser-based NTLM Auth logons that use BIG-IP APM as forward/reverse proxy) fails, and the service is down.

Workaround:
To resolve the issue temporarily, use either of the following:

-- Reset the NTLM Machine Account with the 'Renew Machine Password' option.

-- Run the command:
bigstart restart nlad

The problem can reappear after a week, so you must repeat these steps each time the issue occurs.

984613-11 : CVE-2020-5896 - Edge Client Installer Vulnerability

Solution Article: K08503505

982869-1 : With auto-init enabled for Message Routing peers, tmm crashes with floating point exception when tmm_total_active_npus value is 0

Component: Service Provider

Symptoms:
Tmm may crash.

Conditions:
This occurs when auto initialization is enabled for one or more Message Routing peers and during CMP transition when tmm_total_active_npus value is 0.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

Fix:
Tmm no longer crashes under these conditions.

981785-3 : Incorrect incident severity in Event Correlation statistics

Component: Application Security Manager

Symptoms:
When reported to AVR, incident severity reads "correlation" instead of "high" or "medium".

Conditions:
Usually happens for the first incident after ASM startup.

Impact:
Incorrect statistics in Event Correlation summary (Incident Severity graph), and also in tmsh analytics report.

Workaround:
Use severity info from the Incidents list.

Fix:
Event Correlation engine was fixed and now incident severity is reported properly to AVR.

981461-4 : Unspecified DNS responses cause TMM crash

Solution Article: K45407662

981385-3 : AVRD does not send HTTP events to BIG-IQ DCD

Component: Application Visibility and Reporting

Symptoms:
AVRD does not send HTTP events to BIG-IQ data collection device (DCD).

Conditions:
This happens under normal operation.

Impact:
AVRD does not write Traffic Capture logs for analysis. Cannot analyze issues when Traffic Capture does not provide event information.

Workaround:
None.

981273-2 : APM webtop hardening

Component: Access Policy Manager

Symptoms:
Under certain conditions, the APM webtop does not follow current best practices.

Conditions:
-APM provisioned
-Webtop enabled

Impact:
APM webtop does not follow current best practices.

Workaround:
when CLIENT_ACCEPTED {
     ACCESS::restrict_irule_events disable
}
when HTTP_REQUEST {
  if {[HTTP::uri] starts_with "/vdesk/resource_all_info.eui" && [HTTP::query] contains "%"} {
          HTTP::uri [HTTP::path]
  }
}

Fix:
The APM Webtop now follows current best practices.

981169-2 : F5 TMUI XSS vulnerability CVE-2021-22994

Solution Article: K66851119

981069-1 : Reset cause: "Internal error ( requested abort (payload release error))"

Component: Application Security Manager

Symptoms:
An unexpected RST occurs on inbound traffic. The RST cause shows "Internal error ( requested abort (payload release error))"

Conditions:
When all the following conditions are met:
- The system was upgraded to a version where ID910253 is fixed
- TS cookie coming from a previous version
- data guard in non blocking (masking)
- response that is not zipped and has a textual content type

Impact:
Traffic is affected.

Workaround:
Any of the following actions can resolve the issue:

1. Turn off data guard or change it to blocking.
2. Make the server reply with zipped responses (perhaps by adding the accept-encoding: gzip using an iRule).
3. Add an additional response related feature.
4. Use the following iRule in case there aren't cookie related enforcement:
when HTTP_REQUEST {
  set cookies [HTTP::cookie names]
  foreach aCookie $cookies {
    if {$aCookie matches_regex {^TS(?:[0-9a-fA-F]{6,8})(?:$|_[0-9]+$)}} {
      HTTP::cookie remove $aCookie
    }
  }
}

Fix:
Fixed an issue that was triggering resets on traffic.

980821-2 : Traffic is processed by All Port Virtual Server instead of Specific Virtual Server that is configured.

Component: Local Traffic Manager

Symptoms:
Traffic is directed to a virtual server that is configured with port any even though there is a virtual server with a specific port that the traffic should match.

Conditions:
There are two virtual servers configured:
- One with a specific port and ip-protocol 'any'
- One with port any and a specific ip-protocol

Impact:
Traffic destined to the port matches the any-port virtual server rather than the specific port virtual server.

Workaround:
Create individual listeners for specific protocols.

For example, given the configuration:
  ltm virtual vs-port80-protoAny {
    destination 10.1.1.1:80
    ip-protocol any
    ...
  }
  ltm virtual vs-portAny-protoTCP {
    destination 10.1.1.1:0
    ip-protocol TCP
    ...
  }

Replace the vs-port80-protoAny with virtual servers configured for the specific protocols desired:
  ltm virtual vs-port80-protoTCP {
    destination 10.1.1.1:80
    ip-protocol TCP
    ...
  }
  ltm virtual vs-port80-protoUDP {
    destination 10.1.1.1:80
    ip-protcol UDP
    ...
  }

Fix:
More specific virtual server now gets more priority than wildcard virtual server to process traffic.

980809-2 : ASM REST Signature Rule Keywords Tool Hardening

Solution Article: K41351250

980325-5 : Chmand core due to memory leak from dossier requests.

Component: TMOS

Symptoms:
Chmand generates a core file when get_dossier is run continuously.

Due to excessive dossier requests, there is a high consumption of memory. The program is terminated with signal SIGSEGV, Segmentation fault.

Conditions:
Repeated/continuous dossier requests during licensing operations.

Impact:
Chmand crashes; potential traffic impact while chmand restarts.

Workaround:
None.

980125-3 : BD Daemon may crash while processing WebSocket traffic

Solution Article: K42051445

977053-2 : TMM crash on standby due to invalid MR router instance

Component: Service Provider

Symptoms:
In high availability (HA) setup, TMM on the standby device may crash due to an invalid Message Routing (MR) router instance.

Conditions:
-- HA environment.
-- Connection mirroring is enabled.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
TMM on the standby device no longer crashes under these conditions.

977005-1 : Network Firewall Policy rules-list showing incorrect 'Any' for source column

Component: Advanced Firewall Manager

Symptoms:
Network Firewall Policy rules-list shows incorrect 'Any' for source column.

Conditions:
- Create a policy under Security :: Network Firewall : Policies.
- Create a rules list with some rules in it.
- Add the rules list to the Policy.
- Verify the GUI shows 'any' under the source column of the root tree of the policy.

Impact:
GUI shows 'Any' extra text under the source column

Workaround:
None

Fix:
The GUI no longer shows extra text

976925-2 : BIG-IP APM VPN vulnerability CVE-2021-23002

Solution Article: K71891773

976505-2 : Rotated restnoded logs will fail logintegrity verification.

Component: TMOS

Symptoms:
On enabling the logintegrity feature, the rotated restnoded logs fail logintegrity verification.

Conditions:
Logintegrity support feature is enabled:

list sys db logintegrity.support
sys db logintegrity.support {
value "enable"
}

Impact:
Rotated restnoded logs fail logintegrity verification.

Workaround:
None

Fix:
Restnoded logs are now verified successfully by the logintegrity utility.

976501-2 : Failed to establish VPN connection

Component: Access Policy Manager

Symptoms:
VPN client exits with message "Failed to establish VPN connection"

Conditions:
-- Connect to Network Access using web browser.
-- Disconnect and then click on the Network Access resource again in the Webtop
-- Internet Explorer browser

Impact:
Client will be unable to launch the VPN tunnel from the browser.

Workaround:
Clear cache in the browser and retry.
Disable caching in the browser.

976365 : Traffic Classification hardening★

Component: Traffic Classification Engine

Symptoms:
Traffic Classification IM packages do not follow current best practices.

Conditions:
- Traffic Classification enabled
- IM packages updated by an authenticated administrative user

Impact:
Traffic Classification IM packages do not follow current best practices.

Workaround:
No Workaround

Fix:
Traffic Classification IM packages now follow current best practices.

975809-1 : Rotated restjavad logs fail logintegrity verification.

Component: TMOS

Symptoms:
After enabling the logintegrity feature, the rotated restjavad logs fail logintegrity verification.

Conditions:
Logintegrity support feature is enabled:

list sys db logintegrity.support
sys db logintegrity.support {
value "enable"
}

Impact:
Rotated restjavad logs fail logintegrity verification.

Workaround:
None

Fix:
Restjavad logs are now verified successfully by the logintegrity utility.

975465-2 : TMM may consume excessive resources while processing DNS iRules

Solution Article: K65397301

975233-2 : Advanced WAF/ASM buffer-overflow vulnerability CVE-2021-22992

Solution Article: K52510511

974881-2 : Tmm crash with SNAT iRule configured with few supported/unsupported events with diameter traffic

Component: Service Provider

Symptoms:
Currently, for diameter, a SNAT iRule can be configured with MR_INGRESS and MR_FAILED events. Certain events can cause tmm to crash.

Conditions:
A SNAT iRule is configured with the events CLIENT_ACCEPTED, DIAMETER_INGRESS and DIAMETER_EGRESS for diameter

Impact:
Traffic disrupted while tmm restarts.

Fix:
Fixed a tmm crash related to handling certain events in an iRule.

974501-1 : Excessive memory usage by mirroring subsystem when remirroring

Component: Local Traffic Manager

Symptoms:
Aggressive sweeper messages are seen in /var/log/ltm similar to the following:
Dec 31 02:35:44 bigip1 warning tmm[25306]: 011e0002:4: sweeper_segment_cb_any: Aggressive mode /Common/default-eviction-policy activated (0) (global memory). (26227799/30854144 pages)

In severe cases, tmm might restart and generate a core file due to an out of memory condition.

Conditions:
The active BIG-IP has a large number of mirrored fastL4 connections.
The active BIG-IP reconnects the statemirror connection to the standby BIG-IP. This is indicated by messages similar to the following in /var/log/ltm:
Dec 31 02:35:37 bigip1 err tmm[25306]: 01340001:3: high availability (HA) Connection with peer 10.25.0.11:1029 for traffic-group /Common/traffic-group-1 established.

Impact:
A portion of the connections handled by the BIG-IP might be dropped causing traffic interruption for those connections. In severe cases, tmm might restart causing traffic interruption.

Fix:
The memory utilization when remirroring fastL4 flows has been improved to allow remirroring to handle a larger number of connections.

974241-1 : Creation of access policy with modern customization may lead to failover in a VIPRION or vCMP guest with multiple blades

Component: TMOS

Symptoms:
Mcpd exists with error similar to:

01070734:3: Configuration error: Configuration from primary failed validation: 010713cf:3: Configuration group '/Common/test1_end_deny_ag' has invalid source '/Common/standard'

Conditions:
1. VIPRION or vCMP guest with multiple blades in a cluster
2. Create a access policy with modern customization enabled

Impact:
Mcpd restarts leading to failover.

Workaround:
Use standard customization and not modern customization.

974205-3 : Unconstrained wr_urldbd size causing box to OOM

Component: Traffic Classification Engine

Symptoms:
The wr_urldbd processes' memory grows and can exceed 4 GB. This might cause an out-of-memory (OOM) condition when processing URLCAT requests.

Conditions:
This occurs when processing a large volume of distinct and valid URLCAT requests.

Impact:
The device eventually runs out of memory (OOM condition).

Workaround:
Restart the wr_urldbd process:
restart sys service wr_urldbd

Fix:
Constrained the cache with Least Recently Used-based caching to prevent this issue from occurring.

Added two sys DB variables:

-- wr_urldbd.cloud_cache.log.level

Value Range:
sys db wr_urldbd.cloud_cache.log.level {
    value "debug"
    default-value "none"
    value-range "debug none"
}

-- wr_urldbd.cloud_cache.limit

Value Range:
sys db wr_urldbd.cloud_cache.limit {
    value "5500000"
    default-value "5500000"
    value-range "integer min:5000000 max:10000000"
}

Note: Both these variables are introduced for debugging purpose.

973333-5 : TMM buffer-overflow vulnerability CVE-2021-22991

Solution Article: K56715231

973261-2 : GTM HTTPS monitor w/ SSL cert fails to open connections to monitored objects

Component: Global Traffic Manager (DNS)

Symptoms:
Big3d does not try to open TCP connections if a HTTPS monitor contains a cert/key.
/var/log/gtm shows:

err big3d[19217]: 01333001:3: Start: SSL error:02001002:system library:fopen:No such file or directory
err big3d[19217]: 01333001:3: Start: SSL error:20074002:BIO routines:FILE_CTRL:system lib
err big3d[19217]: 01333001:3: Start: SSL error:140CE002:SSL routines:SSL_use_RSAPrivateKey_file:system lib
err big3d[19217]: 01330014:3: CSSLSocket:: Unable to get the session.

Conditions:
GTM HTTPS monitor with non-default cert/key.

Impact:
Unable to use HTTPs monitor.

973201-2 : F5OS BIG-IP tenants allow OS upgrade to unsupported TMOS versions★

Component: TMOS

Symptoms:
Releases prior to BIG-IP 14.1.4 allow the installation of incompatible versions of BIG-IP software and cause the tenant to become unusable in F5OS.

Conditions:
This happens when you upload an incompatible version of BIG-IP software into the F5OS BIG-IP tenant and begins a live upgrade.

Impact:
Tenant is unusable when upgrading to an unsupported F5OS BIG-IP version.

Workaround:
None

Fix:
F5OS BIG-IP v14.1.4 and later prevents installation of an invalid F5OS BIG-IP version.

971297-2 : DNSKEYS Type changed from external to internal and Keys are not stored in HSM after upgrade★

Component: Global Traffic Manager (DNS)

Symptoms:
DNSSEC keys which are stored on netHSM type is changed from FIPS external to internal during the upgrade.

Conditions:
-- BIG-IP with a NetHSM license
-- BIG-IP uses external DNSSEC keys stored in the NetHSM
-- The BIG-IP device is upgraded

Impact:
The keys are stored locally following the upgrade.

Workaround:
None.

970829-5 : iSeries LCD incorrectly displays secure mode

Solution Article: K03310534

Component: Device Management

Symptoms:
On iSeries platforms, the LCD continuously displays secure mode and does not respond to user input.

Conditions:
This occurs if the admin password is anything other than the default on iSeries platforms.

Impact:
The LCD does not respond to user input. The LCD continuously displays secure mode. The /var/log/touchscreen_lcd fills up with error messages:

-- err lcdui[1236]: URL: http://127.4.2.1/mgmt/tm/sys/failover, result: 'Host requires authentication' (204), HTTP method 2, status 401.

The restjavad-audit.*.log may contain similar messages

[I][19005][18 Mar 2021 21:25:02 UTC][ForwarderPassThroughWorker] {"user":"local/null","method":"GET","uri":"http://localhost:8100/mgmt/shared/identified-devices/config/device-info","status":401,"from":"127.4.2.2"}
[I][19007][18 Mar 2021 21:25:02 UTC][ForwarderPassThroughWorker] {"user":"local/null","method":"GET","uri":"http://localhost:8100/mgmt/tm/sys/global-settings","status":401,"from":"127.4.2.2"}
[I][19009][18 Mar 2021 21:25:02 UTC][ForwarderPassThroughWorker] {"user":"local/null","method":"GET","uri":"http://localhost:8100/mgmt/tm/sys/failover","status":401,"from":"127.4.2.2"}

Workaround:
None

Fix:
The LCD now functions normally, and no authentication errors appear in the logs.

970329-3 : ASM hardening

Component: Application Security Manager

Symptoms:
Under certain conditions, ASM does not follow current best practices.

Conditions:
- ASM provisioned

Impact:
Attack detection is not triggered as expected

Workaround:
N/A

Fix:
Attack detection is now triggered as expected

969713-1 : IPsec interface mode tunnel may fail to pass packets after first IPsec rekey

Component: TMOS

Symptoms:
IPsec tunnel initially works until the IPsec (ESP) SA is re-negotiated.

Conditions:
-- IKEv2
-- IPsec tunnel uses interface mode ipsec-policy
-- IPsec SAs are re-negotiated, for example after the SA lifetime expires
-- Traffic selector narrowing occurs due to the BIG-IP and remote peer having different selectors configured

Impact:
IPsec tunnel suddenly stops forwarding packets across the tunnel

Workaround:
-- Configure the traffic-selectors to be identical on both the BIG-IP and remote IPsec peer.

Fix:
IPsec tunnel forwards packets after IPsec SAs are re-established.

969637-2 : Config may fail to load with "FIPS 140 operations not available on this system" after upgrade★

Component: Local Traffic Manager

Symptoms:
After upgrade, configuration load fails with a log:
"FIPS 140 operations not available on this system"

Conditions:
-- A small subset of the following BIG-IP platforms:
  + i5820-DF / i7820-DF
  + 5250v-F / 7200v-F
  + 10200v-F
  + 10350v-F

Impact:
Configuration load fails and the device does not come online.

969509-4 : Possible memory corruption due to DOS vector reset

Component: Advanced Firewall Manager

Symptoms:
Unpredictable result due to possible memory corruption

Conditions:
DOS vector configuration change

Impact:
Memory corruption

Fix:
Added correct logic to reset DOS vector.

969385-2 : Automatic attach/detach BeWAF policy to virtual server stops working for all virtual servers.

Component: BIG-IP Risk Engine

Symptoms:
Automatic attach/detach BeWAF policy to a virtual server stops working for all virtual servers if at least one virtual server has a regular ASM policy with TAP profile

Conditions:
Define Virtual Servers with DOS profiles, along with Virtual Servers that are managed by cloud (Cortex)

Impact:
Detaching virtual servers from DOS can cause the attach option to be disabled.

Workaround:
Do not define virtual servers with cloud along with virtual servers managed by cloud (Applications).

Fix:
None

969213-1 : VMware: management IP cannot be customized via net.mgmt.addr property

Component: TMOS

Symptoms:
IP addresses provided for VM customization in VMware are ignored. net.mgmt.addr and net.mgmt.gw properties supposed to be used when customization of IP addresses during VM setup is desired. But the addresses are ignored.

Conditions:
VMware only. Happens in any of the ways in which address are supplied via net.mgmt.addr and net.mgmt.gw. See https://clouddocs.f5.com/cloud/public/v1/vmware/vmware_setup.html for scenario where net.mgmt.addr and net.mgmt.gw can be set. VM customization profiles still work properly.

Impact:
Management IP cannot be customized in VMware during the VM setup.

969105-2 : HA failover connections via the management address do not work on vCMP guests running on VIPRION

Component: TMOS

Symptoms:
A high availability (HA) failover connection using the management IP addresses does not work on vCMP guests running on a VIPRION device.

BIG-IP instances running directly on hardware, on Virtual Edition, and as vCMP guests running on an appliance are unaffected.

HA failover connections using self IPs are unaffected.

Conditions:
-- vCMP guest running on a VIPRION device
-- high availability (HA) failover connection using the management IP addresses (unicast and/or multicast)

Impact:
Failover state determination over the management port is permanently down.

Workaround:
While self IP-based high availability (HA) failover connections are not affected by this issue, F5 recommends configuring failover connections over both management IPs and self IPs (as detailed in K37361453: Configuring network failover for redundant VIPRION systems :: https://support.f5.com/csp/article/K37361453).

To mitigate this issue, run the following command on each blade of every guest:
touch /var/run/chmand.pid

The workaround does not survive a reboot, so a more permanent workaround is to edit the file /config/startup and add a line to touch /var/run/chmand.pid.

Add this line to the end of /config/startup:

(sleep 120; touch /var/run/chmand.pid) &

Note: The sleep time of 120 seconds should be tested as it depends on how quickly or slowly the Guest starts up, so the appropriate value for one system may differ from another system.

Alternatively, You can use instructions in K11948: Configuring the BIG-IP system to run commands or scripts upon system startup :: https://support.f5.com/csp/article/K11948 to issue commands at system startup after verification if mcpd is up and ready, e.g.:

#!/bin/bash
source /usr/lib/bigstart/bigip-ready-functions
wait_bigip_ready

# Customized startup command(s) can be added below this line.
touch /var/run/chmand.pid
# Customized startup command(s) should end above this line.

You may also request an Engineering Hotfix from F5.

968741-1 : Traffic Intelligence pages not visible

Component: Traffic Classification Engine

Symptoms:
When trying to access TCE Signature Update Page from the GUI:
Traffic Intelligence -> Applications -> Signature Update

The page will not load.

Conditions:
Clicking on Traffic Intelligence -> Applications -> Signature Update will show a blank page.

Impact:
You will not be able access the Traffic Intelligence -> Applications -> Signature page in the GUI.

Workaround:
None

Fix:
TMUI pages for Traffic classification will be accessible from TMUI : Traffic Intelligence -> Applications -> Signature

968733-6 : CVE-2018-1120 kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service

Solution Article: K42202505

968641-2 : Fix for zero LACP priority

Component: Local Traffic Manager

Symptoms:
A LACP priority of zero prevents connectivity to Cisco trunks.

Conditions:
LACP priority becomes 0 when system MAC address has 00:00 at the end.

Impact:
BIG-IP may be unable to connect to Cisco trunks.

Workaround:
None.

Fix:
Eliminate LACP priority equal 0

968421-2 : ASM attack signature doesn't matched

Solution Article: K30291321

Component: Application Security Manager

Symptoms:
A specific attack signature doesn't match as expected.

Conditions:
Undisclosed conditions.

Impact:
Attack signature does not match as expected, request is not logged.

Workaround:
N/A

Fix:
Attack signature now matches as expected.

968349 : TMM crashes with unspecified message

Solution Article: K19012930

967905-2 : Attaching a static bandwidth controller to a virtual server chain can cause tmm to crash

Component: TMOS

Symptoms:
Tmm crashes.

Conditions:
-- static bwc
-- virtual to virtual chain

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not use the static bwc on a virtual chain.

Fix:
Fixed a tmm crash.

967889-1 : Incorrect information for custom signature in DoS Protection:DoS Overview (non-http)

Component: Advanced Firewall Manager

Symptoms:
Custom signature of virtual server shows incorrect attack information.

Conditions:
-- Virtual server has a custom signature
-- An attack is mitigated
-- View the custom signature information via Security :: DoS Protection : DoS Overview (non-HTTP)

Impact:
GUI shows incorrect information for custom signature

Fix:
GUI shows correct information for custom signature

967745 : Last resort pool error for the modify command for Wide IP

Component: TMOS

Symptoms:
System reports error for the modify command for Wide IP.

01b60021:3: Last resort pool type not specified for Wide IP 9084.example.com of type A.

Conditions:
Running the modify command involving last-resort-pool and not specifying a type or name for the object.

Impact:
The object is not modified, and the system reports an error.

Workaround:
The GSLB type needs to be given for any and all TMSH commands that utilize GTM Wide IPs or GTM Pools.

Append the command with last-resort-pool a <pool_name>, for example:

modify a 9084.example.com aliases replace-all-with { 9084.example1.com } last-resort-pool a pool1_test

Fix:
The GSLB type needs to be given for any and all TMSH commands that utilize GTM Wide IPs or GTM Pools.

966701-2 : Client connection flow is aborted when data is received by generic msg filter over sctp transport in BIG-IP

Component: Service Provider

Symptoms:
Client connections are aborted when the generic message router profile is used in conjunction with the SCP transport profile.

Conditions:
-- SCTP transport profile
-- MRF generic msg router profile

Impact:
BIG-IP is unable to process the traffic received over the SCTP transport for MRF generic message routing

Fix:
Enable the return type in generic msg filter when data received over SCTP transport

966681-1 : NAT translation failures while using SP-DAG in a multi-blade chassis

Component: Carrier-Grade NAT

Symptoms:
NAT translation fails

Conditions:
-- VIPRION multi-blade chassis
-- Configure AFM NAT/CGNAT and attach the AFM NAT Policy / lsnpool to the virtual server
-- Configure sp-dag on the vlans

Impact:
Traffic failure, performance degraded

Workaround:
Change the DB variable tm.lsn.retries to the maximum value of 4096

Fix:
Increase the number of attempts in selecting local translation IP (an IP when used makes the return packet to land on the same TMM where the NAT selection is happening). This can be controlled with DB variable tm.lsn.retries. The actual attempts is 16 times the value set in this db variable.

966277-1 : BFD down on multi-blade system

Component: TMOS

Symptoms:
After a secondary blade reboots in a multi-blade system, bi-directional forwarding detection (BFD) stops functioning.

Conditions:
-- Multi-blade VIPRION environment
-- BFD enabled
-- A secondary blade reboots

Impact:
BFD flaps on the secondary blade that was rebooted. The BFD session flap clears the routes on the peer.

965617-3 : HSB mitigation is not applied on BDoS signature with stress-based mitigation mode

Component: Advanced Firewall Manager

Symptoms:
BDoS signature attacks are mitigated in software rather than via HSB

Conditions:
Dynamic or custom signature in stress-based mitigation mode on appliance with HSB support

Impact:
More resources loading during DDoS attack

Fix:
Correct free spot search with offloading to HSB

965581-2 : Statistics are not reported to BIG-IQ

Component: Application Visibility and Reporting

Symptoms:
After a BIG-IP system is attached to BIG-IQ, there are no statistics reported. The 'avrd' process periodically fails with a core on the BIG-IP system.

Conditions:
A BIG-IP system is attached to BIG-IQ.

Impact:
No statistics collected.

Fix:
The avrd process no longer fails, and statistics are collected as expected.

965485-3 : CVE-2019-5482 Heap buffer overflow in the TFTP protocol handler in cURL

Solution Article: K41523201

965229-2 : ASM Load hangs after upgrade★

Component: Application Security Manager

Symptoms:
ASM upgrade hangs, and you see the following in
var/log/ts/asm_start.log:
-------------------------
asm_start|DEBUG|Nov 15 07:04:41.751|25365|F5::ConfigSync::restore_active_policies,,Restoring active policy - policy /Common/my_portal (id = 603)
... END OF FILE ...
-------------------------

In /var/log/asm:
-----------------------------
2020-11-15T06:01:23+00:00 localhost notice boot_marker : ---===[ HD1.cm6250 - BIG-IP 13.1.3.4 Build 0.255.5 <HD1.cm6250> ]===---
info set_ibdata1_size.pl[20499]: Setting ibdata1 size finished successfully, a new size is: 9216M
info tsconfig.pl[24675]: ASM initial configration script launched
info tsconfig.pl[24675]: ASM initial configration script finished
info asm_start[25365]: ASM config loaded
err asm_tables_dump.pl[31430]: gave up waiting for ASM to start, please try again later
-----------------------------

Conditions:
-- ASM provisioned
-- 600 or more security policies
-- Performing an upgrade

Impact:
ASM post upgrade config load hangs and there are no logs or errors

Workaround:
None

964941-1 : IPsec interface-mode tunnel does not initiate or respond after config change

Component: TMOS

Symptoms:
After reconfiguring an interface-mode IPsec tunnel, the IPsec tunnel may fail to initiate or negotiate as a Responder.

Conditions:
-- IPsec interface mode
-- Changing the IPsec tunnel configuration

Impact:
Remote networks cannot be reached because BIG-IP refuses to negotiate IPsec tunnel.

Workaround:
Reboot or restart tmm

Fix:
Valid changes to the IPsec tunnel configuration result in the tunnel negotiation happening.

964897-2 : Live Update - Indication of "Update Available" when there is no available update

Component: Application Security Manager

Symptoms:
Live Update notifies you that an update is available even though there is no available update.

Conditions:
The latest file is installed but not present on the system and the second-latest file has an 'error' status

Impact:
Live Update erroneously indicates that an update is available.

Workaround:
1. upload the latest file that is not present on the system with scp to '/var/lib/hsqldb/live-update/update-files/'
2. restart 'tomcat' service:
> bigstart restart tomcat

Fix:
Fixed an issue with Live Update notification.

964585-3 : "Non OK return code (400) received from API call" is logged for ProtocolInspection auto update

Component: Protocol Inspection

Symptoms:
- Protocol Inspection autoupdate logs "Non OK return code (400) received from API call" when the F5 download site does not contain Protocol Inspection Update container for the BIG-IP version.

Conditions:
- Protocol Inspection auto update is enabled.
- The BIG-IP version does not have the ProtocolInspection container in the relevant download section on F5 downloads.

Impact:
- The error message does not accurately explain the cause of the problem.

Workaround:
None.

Fix:
- More context is added to the log message when Protocol Inspection file is not present on the downloads site.

964577-3 : IPS automatic IM download not working as expected

Component: Protocol Inspection

Symptoms:
IPS automatic download of IM packages from the F5 Downloads site does not complete as expected.

IPS automatic IM download considers the BIG-IP software major and minor version numbers.

However, the IPS library is dependent only on major version numbers. The site should constrain IM package download only to those that are compatible with the major version.

Conditions:
Auto download of IM package for IPS.

Impact:
New minor releases, such as BIG-IP v15.1.1 and later, cannot download IPS IM packages.

Workaround:
Manually download the IM package and upload it onto the BIG-IP system.

Fix:
Minor releases of BIG-IP software can now automatically download the IM package without issue.

964245-2 : ASM reports and enforces username always

Component: Application Security Manager

Symptoms:
When session tracking is enabled and configured to enforce usernames for a specific list of login URLs, the username which arrives in an Authorization header is being enforced even if the request to the URL with the Authorization is not configured at all as a login URL.

Conditions:
Session tracking is enabled for login URLs with the Username Threshold set to 1.

Impact:
Username from the Authorization appears with status = BLOCK-ALL in the session tracking status list, even though session tracking is not configured for that URL.

Workaround:
None

Fix:
Username from the Authorization not appearing with status = BLOCK-ALL in session tracking status list.

963713-1 : HTTP/2 virtual server with translate-disable can core tmm

Component: Local Traffic Manager

Symptoms:
Tmm crashes while passing HTTP/2 traffic

Conditions:
-- HTTP/2 virtual server
-- Port and address translation disabled

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not configure an HTTP/2 virtual server with translate-disable

Fix:
Tmm does not crash anymore.

963485-1 : Performance issue with data guard

Component: Application Security Manager

Symptoms:
End user clients encounter poor network performance. Due to a correlation with ID 963461 it can lead to a crash.

Conditions:
-- The server response is compressed.
-- Data guard is enabled.

Impact:
Slow response time.

Workaround:
-- Disable data guard or block the data instead of masking it.

-- Force server sending uncompressed response using an iRule:

when HTTP_REQUEST {
HTTP::header remove Accept-Encoding
}

963461-1 : ASM performance drop on the response side

Component: Application Security Manager

Symptoms:
Clients encounter a longer time to respond from the BIG-IP

Conditions:
-- One of the following features is enabled:
   - convictions
   - csrf
   - ajax.
-- The response is HTML
-- The response has many tags

Impact:
Slow performance. May lead to a bd crash on specific responses. Traffic disrupted while bd restarts.

963237-3 : Non-EDNS response with RCODE FORMERR are blocked by AFM MARFORM vector.

Component: Advanced Firewall Manager

Symptoms:
When a client sends a DNS request to a NON EDNS capable server, the server may send a legitimate response with RCODE FORMERR and no DNS data. The MALFORM DNS vector blocks those requests.

Conditions:
-- The client sends a DNS request to NON EDNS capable server
-- The server replies with RCODE FORMERR and no DNS data.

Impact:
AFM erroneously detects an attack and mitigates it, and the client does not get a responses from the EDNS server

Workaround:
Disable DNS MALFORM vector mitigation or put the EDNS server in allow list.

963049-1 : Unexpected config loss when modifying protected object

Component: TMOS

Symptoms:
A virtual server configuration is changed unexpectedly.

Conditions:
- Create virtual server with two client SSL profiles
- Modify same virtual server in Protected Objects panel.

Impact:
Virtual servers client SSL profiles are removed if you have more than one profile.

Workaround:
None

Fix:
Virtual server client SSL profiles are no longer removed from the config if the update happens through Protected Objects panel in the GUI.

963017-2 : The tpm-status-check service shows System Integrity Status: Invalid when Engineering Hotfix installed

Component: TMOS

Symptoms:
Upon booting a BIG-IP hardware system running an Engineering Hotfix version of BIG-IP v14.1.0 or later, messages of the following form may be logged in the LTM log file (/var/log/ltm):

err tpm-status[####]: System Integrity Status: Invalid
info tpm-status-check[####]: System Integrity Status: Invalid

In addition, a message similar to the following may appear on the serial console while the system is booting:

[ ###.######] tpm-status-check[####]: Checking System Integrity Status
[ ###.######] tpm-status-check[####]: sh: /bin/rpm: Permission denied
[ ###.######] tpm-status-check[####]: tpm-status-check: System Integrity Status: Invalid

Similar messages appear when viewing the status of the tpm-status-check service via the systemctl utility:

# systemctl -l status tpm-status-check.service
* tpm-status-check.service - F5 Trusted Platform Module
Loaded: loaded (/usr/lib/systemd/system/tpm-status-check.service; static; vendor preset: enabled)
Active: failed (Result: exit-code) since <...>
Main PID: #### (code=exited, status=1/FAILURE)

<...> tpm-status-check[####]: Checking System Integrity Status
<...> tpm-status-check[####]: sh: /bin/rpm: Permission denied
<...> tpm-status[####]: TPM Status Version 15.1.1.0.6.6
<...> tpm-status[####]: TMOS BIG-IP 15.1.1-0.0.6.0
<...> tpm-status[####]: BIOS 0614 v3.10.032.0
<...> tpm-status[####]: BIOS SIRR 2019-05-30_08-46-02
<...> tpm-status-check[####]: tpm-status-check: System Integrity Status: Invalid
<...> systemd[1]: tpm-status-check.service: main process exited, code=exited, status=1/FAILURE
<...> systemd[1]: Unit tpm-status-check.service entered failed state.
<...> systemd[1]: tpm-status-check.service failed.

However, checking the System Integrity Status using the 'tpm-status' or 'tmsh run sys integrity status-check' command shows 'System Integrity Status: Valid'.

Conditions:
This may occur under the following conditions:

-- Running BIG-IP v14.1.0 or later.
-- Using Engineering Hotfixes containing fixes for the following bugs:
   - ID893885 (https://cdn.f5.com/product/bugtracker/ID893885.html)
   - ID946745 (https://cdn.f5.com/product/bugtracker/ID946745.html)
-- Using hardware platforms that include a Trusted Platform Module (TPM), including:
   - BIG-IP i2000, i4000, i5000, i7000, i10000, i11000, i15000 Series appliances
   - VIPRION B4450 blades

Impact:
The tpm-status-check service inaccurately indicates that the System Integrity Status is not Valid.

This is incorrect, and conflicts with the accurate System Integrity Status provided by the 'tpm-status' utility and 'tmsh run sys integrity status-check' command.

Workaround:
To observe the correct System Integrity Status, do either of the following:
-- Use the 'tpm-status' utility.
-- Run the command:
tmsh run sys integrity status-check

Fix:
This incorrect status reporting has been corrected.

962817-2 : Description field of a JSON policy overwrites policy templates description

Component: Application Security Manager

Symptoms:
Creating a UTF-8 policy using a template for the first time creates a binary policy the system uses the next time you create a UTF-8 policy with the same template.

If the creation occurs via JSON policy import, the description field of the JSON policy overwrites the description from the template, and the next time you create a UTF-8 policy using the same template, the system uses the description from the first JSON policy.

Conditions:
Create an initial UTF-8 policy with some template using a JSON policy with a custom description.

Impact:
The next time you create a UTF-8 policy with the same template, unless you provide a description, the system uses the one from the initially created JSON policy instead the template.

Workaround:
Before creating the second policy, remove the binary file that was created from the first run. For example if the template used was Fundamental:

rm -f /ts/install/policy_templates/fundamental.bin

Fix:
The binary file now contains the correct description.

962589-2 : Full Sync Requests Caused By Failed Relayed Call to delete_suggestion

Component: Application Security Manager

Symptoms:
When using parent policies with learning enabled in an auto-sync device group, in some use cases deleting an ignored suggestion on a parent policy will cause a full sync to occur.
This can cause unexpected delays in configuration being synchronized between peers, and in the event of repeated instances in quick succession could fill the /var partition

Conditions:
1) Device Group with ASM and auto-sync enabled
2) Parent Policies with learning are in use.
3) Ignored Suggestions are deleted on the parent policy after they have 0 suggesting children left.

Impact:
ASM configuration requests a full sync which can cause unexpected slowness in config synchronization and may fill the /var partition if done multiple times in quick succession.
A full /var partition can lead to bd cores.

962497 : BD crash after ICAP response

Component: Application Security Manager

Symptoms:
BD crash when checking ICAP job after ICAP response

Conditions:
BD is used with ICAP feature

Impact:
Traffic disrupted while BD restarts.

Workaround:
N/A

962433-4 : HTTP::retry for a HEAD request fails to create new connection

Component: Local Traffic Manager

Symptoms:
In case of a HEAD request, BIG-IP fails to set up a new connection to the server with the HTTP::retry iRule.

Conditions:
1.) Basic HTTP profile is configured on BIG-IP
2.) BIG-IP sends the HEAD request to the server and gets error response
3.) iRule with HTTP::retry is configured
4.) The system is using the default (non-debug) TMM version

Impact:
BIG-IP might send the retry HEAD request after the connection is closed, more specifically after the server has sent a FIN, the retry is leaked on the network.

962341 : BD crash while processing JSON content

Solution Article: K00602225

962249-2 : Non-ePVA platform shows 'Tcpdump starting DPT providers:ePVA Provider' in /var/log/ltm

Component: TMOS

Symptoms:
Non-ePVA platform shows 'Tcpdump starting DPT providers:ePVA Provider' in /var/log/ltm

Conditions:
This message shows always on all platforms.

Impact:
No functional impact.

Fix:
Does not show this message on non-epva platforms.

962177-2 : Results of POLICY::names and POLICY::rules commands may be incorrect

Component: Local Traffic Manager

Symptoms:
When a traffic policy is applied to a virtual server, the iRule commands POLICY::names and POLICY::rules returns incorrect results.

Conditions:
-- BIG-IP has a virtual server with one or more traffic policies having more than one rule.
-- An iRule with POLICY::names and/or POLICY::rules is applied to virtual server to run on multiple transactions over the same connection.

Impact:
Traffic processing may not provide expected results.

Fix:
POLICY::names and POLICY::rules provide atomic results per transaction going over a same connection.

962069-3 : Excessive resource consumption while processing OSCP requests via APM

Solution Article: K79428827

960749-2 : TMM may crash when handling 'DNS Cache' or 'Network DNS Resolver' traffic

Component: Global Traffic Manager (DNS)

Symptoms:
TMM crashes, dumps a core file, and restarts.

Conditions:
-- The configuration includes one or more 'DNS Cache' or 'Network DNS Resolver' objects.

-- The DNS Cache or Network DNS Resolver objects receive traffic.

Impact:
Traffic disrupted while tmm restarts. A redundant unit will fail over.

Fix:
TMM no longer crashes when 'DNS Cache' or 'Network DNS Resolver' objects handle traffic.

960437-2 : The BIG-IP system may initially fail to resolve some DNS queries

Component: Global Traffic Manager (DNS)

Symptoms:
Configurations that use a 'DNS Cache' or 'Network DNS Resolver' are affected by an issue whereby the system may initially fail to resolve some DNS queries.

Subsequent queries for the same domain name, however, work as expected.

Only some domain names are affected.

Conditions:
- The BIG-IP system is configured with either a DNS Cache or Network DNS Resolver.

- The cache is still empty in regard to the domain name being resolved (for example, TMM has just started).

- The cache configuration specifies 'Use IPv6' (the default) but the system has no IPv6 default route.

Impact:
Initial DNS resolution of some domain names fails. Regardless of whether this happens via a DNS cache or Network DNS Resolver, the failure is returned to the client.

In the case of a DNS Cache, the client may just be returned with no record. In the case of a Network DNS Resolver, the failure will depend on the feature using the resolver.

For instance, SWG, SSL Orchestrator, or the HTTP Explicit Forward Proxy, in general, are examples of features that rely on a Network DNS Resolver. In this case, the client's browser will fail to connect to the requested destination, and the client will be shown a proxy error.

Workaround:
Disable 'Use IPv6' in the affected DNS Cache or Network DNS Resolver.

1a. Go to DNS :: Caches :: Cache list.
OR
1b. Go to Network :: DNS Resolvers :: DNS Resolver list.
2. Select the item you want to update in the list.
3. Uncheck 'Use IPv6'
4, Select Update.

You can keep the object in this state (with no consequences) until you define an IPv6 default route on the system, and you wish for the system to also use IPv6 to connect to Internet name-servers.

Fix:
DNS resolution works as expected, with domains resolving the first time they are queried.

960369-2 : Negative value suggested in Traffic Learning as max value

Component: Application Security Manager

Symptoms:
Negative value suggested in Traffic Learning as max value

Conditions:
A huge parameter value is seen in traffic

Impact:
Wrong learning suggestion issued

Workaround:
Manually change maximum allowed value on the parameter to ANY

Fix:
After fix correct suggestion is issued - suggest to change maximum parameter value to ANY

959889-2 : Cannot update firewall rule with ip-protocol property as 'any'

Component: TMOS

Symptoms:
Cannot update the firewall rule with 'any' value as the ip-protocol from the BIG-IP system GUI.

Conditions:
-- Create a rule and set protocol to TCP or UDP
-- From the GUI, change the protocol to "Any" and update

Impact:
Cannot update the firewall rule from GUI.

Fix:
The GUI now allows updating firewall rules with 'any' as an ip-protocal.

959629-2 : Logintegrity script for restjavad/restnoded fails

Component: TMOS

Symptoms:
The logintegrity script used to rotate the signature files for restnoded results in frequent cron errors similar to:

find: '14232restnoded_log_pattern': No such file or directory.

Conditions:
When the logintegrity script runs.

Impact:
If the logintegrity script runs, the signature files for restnoded will not be in sync.

Workaround:
Modify the script file /usr/bin/rest_logintegrity:

1. mount -o remount,rw /usr

2. cp /usr/bin/rest_logintegrity /usr/bin/rest_logintegrity_original

3. vi /usr/bin/rest_logintegrity

4. Replace the following lines:
restnoded_log_pattern=/var/log/restnoded/restnoded.[1-9]*.log
restjavad_log_pattern=/var/log/restjavad*.[1-9]*.log

With the lines:
restjavad_log_pattern=/var/log/restjavad*[1-9]*.log
restnoded_log_pattern=/var/log/restnoded/restnoded[1-9]*.log

5. Replace the line:
wc_restnoded=$(find $$restnoded_log_pattern -cnewer $filename | wc -l)

With the line:
wc_restnoded=$(find $restnoded_log_pattern -cnewer $filename | wc -l)

6. mount -o remount,ro /usr

Fix:
When logintegrity is enabled, signature files for restnoded log files are now generated and rotated.

959121-4 : Not following best practices in Guided Configuration Bundle Install worker

Solution Article: K74151369

958465-2 : in BIG-IP Virtual Edition, TMM may prematurely shut down during initialization

Component: TMOS

Symptoms:
TMM may prematurely shut down during its initialization when several TMMs and interfaces are configured. The system logs messages in one or more TMM log files (/var/log/tmm*):

MCP connection aborted, exiting.

Conditions:
-- BIG-IP Virtual Edition (VE).
-- Happens during TMM startup.
-- The issue is intermittent, but is more likely to occur on systems with a lot of TMMs (more 20 in most cases) and several interfaces (approximately 8 or more).

Impact:
TMM shuts down prematurely. Traffic disrupted while tmm restarts. Possible deadlock and MCP restart loop requiring a full reboot of the BIG-IP device.

Workaround:
None.

Fix:
A new TCL configuration element was added: "max_poll_pre_rfw", with a default value of 4, to modulate the function of "max_poll" in TMMs which are not yet Ready-For-World.

The value of "max_poll_pre_rfw" can be configured in the "tmm_base.tcl" file.

958353-2 : Restarting the mcpd messaging service renders the PAYG VE license invalid.

Component: TMOS

Symptoms:
Upon mcpd service restart, the pay as you grow Virtual Edition license becomes invalid.

Conditions:
Restarting the mcpd messaging service.

Impact:
The license becomes expired. A message is displayed in the console:

mcpd[5122]: 01070608:0: License is not operational (expired or digital signature does not match contents).

Workaround:
If you cannot avoid restarting the mcpd messaging service, then you must issue the reloadlic command, or reboot the BIG-IP (using your preferred method).

Fix:
Fixed an issue with pay as you grow licenses following a mcpd restart.

958085-3 : IM installation fails with error: Spec file not found★

Component: Traffic Classification Engine

Symptoms:
IM installation fails with an error message:

ERROR Error during switching: Spec file not found

Conditions:
This can occur when deleting an IM file that is actively installing on one volume, and the BIG-IP system is booted from another volume.

Impact:
Upgrading/Downgrading to another IM does not work until you install a new BIG-IP image on the same disk.

Workaround:
None.

Fix:
During the init process, the system now installs FactoryDefaults if the active IM file is not found on disk.

957965-1 : Request is blocked by 'CSRF attack detected' violation with 'CSRF token absent'

Component: Application Security Manager

Symptoms:
Request is blocked by 'CSRF attack detected' violation.

Conditions:
- ASM provisioned
- ASM policy attached to a virtual server
- CSRF protection enabled in an ASM policy

Impact:
False positive request blocking occurs.

Workaround:
Disable 'CSRF attack detected' violation in the ASM policy.

Fix:
'CSRF attack detected' now works as expected.

957337-1 : Tab complete in 'mgmt' tree is broken

Component: TMOS

Symptoms:
TMSH Command: "list mgmt shared <tab>" does not display the tab complete option. You may see an error:

(tmos)# list mgmt shared echo *tab*
Unexpected Error: "Object contains no "method" child value"

Conditions:
When mgmt is used in a tmsh command and you attempt to tab complete

Impact:
You are unable to configure objects in mgmt.

This issue also prevents users with the admin role from accessing the following REST endpoints:

shared/authz/users
shared/echo-js

The error returned was HTTP/1.1 401 F5 Authorization Required

Fix:
Fixed an issue with tab completion for certain commands in the 'mgmt' tree.

957029-1 : MRF Diameter loop-detection is enabled by default

Component: Service Provider

Symptoms:
The default value of Message Routing Framework (MRF) Diameter loop detection is enabled.

Conditions:
Default diameter session profile loop detection configuration.

Impact:
System performance is impacted even if MRF Diameter loop detection is not used.

Workaround:
Disable loop detection in all message routing Diameter profiles when it is not needed.

Fix:
MRF Diameter loop detection is now disabled by default.

Note: If you expect MRF Diameter loop detection to be enabled, you must manually change the value after upgrading.

956589-1 : The tmrouted daemon restarts and produces a core file

Component: TMOS

Symptoms:
The tmrouted daemon restarts and produces a core file.

Conditions:
Exact trigger is unknown, but the issue was seen on a chassis setup during a blade failover

Impact:
Traffic disrupted while tmrouted restarts.

Workaround:
None

Fix:
Tmrouted daemon should not restart during blade reset

956373-2 : ASM sync files not cleaned up immediately after processing

Component: Application Security Manager

Symptoms:
Some ASM sync files remain on disk after config sync finishes. They remain until periodic clean-up tasks activate

Conditions:
-- ASM provisioned
-- BIG-IP devices are in a sync group
-- Relatively small "/var" partition

Impact:
If the files are large it may lead to "lack of disk space" problem.

956293-2 : High CPU from analytics-related REST calls - Dashboard TMUI

Component: TMOS

Symptoms:
When opening the GUI > Main > Statistics > Dashboard - the control plane CPU usage is around 7-15% on a completely empty system and Java consumes 3-5% CPU.

Conditions:
Leaving UI dashboard page left open.

Impact:
System performance is impacted if the dashboard page is kept open.

956133-3 : MAC address might be displayed as 'none' after upgrading★

Component: Local Traffic Manager

Symptoms:
The MAC Address of a BIG-IP Virtual Edition network interface is displayed as 'none' after upgrading.

Conditions:
1. The VLAN MTU is set to less than 1280 bytes on a BIG-IP network interface.
2. Upgrade BIG-IP to 14.1.0 or above from BIG-IP versions below 14.1.0

Impact:
Traffic disrupted when the MAC address is set to 'none'

Workaround:
None.

956105-2 : Websocket URLs content profiles are not created as expected during JSON Policy import

Component: Application Security Manager

Symptoms:
Websocket URLs content profiles are not created as expected during JSON Policy import

Conditions:
Import JSON Policy with Websocket URLs configured with content profiles.

Impact:
Content profiles are not being added to the webscket URLs causing wrong configuration.

Workaround:
The content profiles can be manually associated after the import process using REST or GUI.

Fix:
Setting the correct profile reference during import.

955145-2 : iControl REST unauthenticated remote command execution vulnerability CVE-2021-22986

Solution Article: K03009991

955017-2 : Excessive CPU consumption by asm_config_event_handler

Component: Application Security Manager

Symptoms:
Asm_config_event_handler is consuming a lot of CPU while processing signatures after sync

Conditions:
This is encountered during a UCS load, or by a high availability (HA) configuration sync.

Impact:
Asm_config_server_rpc_handler.pl consumes excessive CPU and takes an exceedingly long time to complete.

Workaround:
Disable the signature staging action item for all policies.

954429-2 : User authorization changes for live update

Solution Article: K23203045

954425-2 : Hardening of Live-Update

Component: Application Security Manager

Symptoms:
Under certain conditions, the Live-Update process does not follow current best practices.

Conditions:
- Live-Update in use
- Specially-crafted update files

Impact:
The Live-Update process does not follow current best practices.

Workaround:
N/A

Fix:
The Live-Update process now follows current best practices.

954381-2 : iControl REST unauthenticated remote command execution vulnerability CVE-2021-22986

Solution Article: K03009991

953845-1 : After re-initializing the onboard FIPS HSM, BIG-IP may lose access after second MCPD restart

Component: Local Traffic Manager

Symptoms:
When re-initializing an onboard HSM on particular platforms, BIG-IP may disconnect from the HSM after a second restart of the MCPD daemon.

This can occur when using administrative commands such as:
   -- tmsh run util fips-util init
   -- fipsutil init
   -- tmsh run util fips-util loginreset -r
   -- fipsutil loginreset -r

Conditions:
-- Using the following platforms:
  + i5820-DF / i7820-DF
  + 5250v-F / 7200v-F
  + 10200v-F
  + 10350v-F
  + vCMP guest on i5820-DF / i7820-DF
  + vCMP guest on 10350v-F

Impact:
BIG-IP is unable to communicate with the onboard HSM.

Workaround:
The last step in using "fipsutil init" is to restart all system services ("tmsh restart sys service all") or reboot.

Immediately before doing this:

-- open /config/bigip.conf in a text editor (e.g. vim or nano)
-- locate and delete the configuration "sys fipsuser f5cu" stanza, e.g.:

    sys fipsuser f5cu {
        password $M$Et$b3R0ZXJzCg==
    }

Fix:
Fixed an issue with re-initializing the onboard FIPS HSM.

953729-2 : Advanced WAF/ASM TMUI authenticated remote command execution vulnerabilities CVE-2021-22989 and CVE-2021-22990

Solution Article: K56142644 K45056101

953677-2 : TMUI authenticated remote command execution vulnerabilities CVE-2021-22987 and CVE-2021-22988

Solution Article: K18132488 K70031188

953393-2 : TMM crashes when performing iterative DNS resolutions.

Component: Global Traffic Manager (DNS)

Symptoms:
TMM crashes and produces a core file.

Conditions:
The BIG-IP system configuration includes a Network DNS Resolver, which is referenced by another object (for example, a HTTP Explicit Forward Proxy profile) for DNS resolution.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
You may be able to work around this issue by having the Network DNS Resolver work in forwarding/recursive mode rather than in resolving/iterative mode.

To do so, you configure a Forward Zone in the Network DNS Resolver for '.' (the DNS root). This causes DNS to send all DNS requests to a different, external resolver of your choice, which will perform recursive resolution.

The servers you configure for the '.' Forward Zone could be resolvers internal to your organization or public resolvers (e.g. Google DNS).

Fix:
TMM no longer crashes.

952557-2 : Azure B2C Provider OAuth URLs are updated for B2Clogin.com

Component: Access Policy Manager

Symptoms:
Microsoft has deprecated login.microsoftonline.com OAuth Azure Active Directory B2C (Azure AD B2C) URLs. The OAuth Provider templates are updated to support the newer URLs B2Clogin.com.

Conditions:
Azure AD B2C Provider may be non functional if URLs are using logic.microsoftonline.com.

Impact:
Older AD B2C URLs using login.microsoftonline.com may not be functional.

Workaround:
Update existing URLs when creating OAuth B2C providers to use B2Clogin.com.

For more information, see Azure Active Directory B2C is deprecating login.microsoftonline.com :: https://azure.microsoft.com/en-us/updates/b2c-deprecate-msol/.

Fix:
Azure B2C Provider OAuth URLs have been updated to use B2Clogin.com.

952545-2 : 'Current Sessions' statistics of HTTP2 pool may be incorrect

Component: Service Provider

Symptoms:
In HTTP2 full proxy deployment, the LTM pool 'cur_sessions' statistics may show an unusually large number, such as 18446743927680663552

Conditions:
-- HTTP2 full proxy deployment
-- A client sends multiple requests over multiple streams

Impact:
'Current Sessions' statistics can be used to track number of pending requests in the queue and it can underflow.

Workaround:
None.

Fix:
'Current Sessions' statistics of HTTP2 pool reports correctly.

952509-2 : Cross origin AJAX requests are blocked in case there is no Origin header

Component: Application Security Manager

Symptoms:
When using Single Page Application, if a CORS request is sent without an Origin, the "Access-Control-Allowed-Origin" header is not set and the request is blocked.

Conditions:
-- ASM policy / DoS (with application) profile / Bot Defense Profile are attached to VS, with a "Single Page Application" flag enabled.
-- Client is using dosl7.allowed_origin option
-- CORS Request is sent without an Origin header.

Impact:
Request is blocked.

Workaround:
Use an iRule to add the Origin header according to the domain in the Referrer header.

Fix:
Check referrer header also when modifying CORS headers.

951705-2 : iControl REST unauthenticated remote command execution vulnerability CVE-2021-22986

Solution Article: K03009991

951133-2 : Live Update does not work properly after upgrade★

Component: Application Security Manager

Symptoms:
After upgrading BIG-IP version the Live Update "Check for Update" button does not respond.

Conditions:
Upgrading from a version that did not have Live Update to a new version which includes Live Update

Impact:
Live Update can't query for new updates.

Workaround:
Restart tomcat process:
> bigstart restart tomcat

950917-1 : Apply Policy fails due to internal signature overlap following ASU ASM-SignatureFile_20200917_175034

Component: Application Security Manager

Symptoms:
Following Signature Update (-SignatureFile_20200921_124008 or later), newly added/activated policies may fail Apply Policy due to a duplicate key database error:

01310027:2: subsystem error (asm_config_server.pl,F5::SetActive::Impl::set_active): Setting policy active failed: Failed to insert to DCC.ACCOUNT_NEGSIG_SIGNATURE_PROPERTIES (DBD::mysql::db do failed: Duplicate entry '8112518117000363265' for key 'PRIMARY' at /usr/local/share/perl5/F5/BatchInsert.pm line 219. )

Conditions:
Signature Update -SignatureFile_20200921_124008 is installed, and a newly imported or inactive policy is applied.

Impact:
Apply policy fails.

Workaround:
You can use any of the following workarounds:

-- Install an older signature update -SignatureFile_20200917_175034

-- Disable staging for either signature 200101255 or signature 200101258 (or both) in the affected policies. The policy can then be successfully applied.

-- Run the following SQL command to correct all affected policies on the device:
----------------------------------------------------------------------
UPDATE PL_POLICY_NEGSIG_SIGNATURES policy_sigs INNER JOIN (select previous_enforced_rule_md5, policy_id, count(*) as mycount from PL_POLICY_NEGSIG_SIGNATURES where previous_enforced_rule_md5 != '' group by previous_enforced_rule_md5, policy_id having mycount > 1) as multi_sigs on policy_sigs.policy_id = multi_sigs.policy_id and policy_sigs.previous_enforced_rule_md5 = multi_sigs.previous_enforced_rule_md5 SET policy_sigs.previous_enforced_rule_md5 = '', policy_sigs.previous_enforced_rule = '';
----------------------------------------------------------------------

950849-4 : B4450N blades report page allocation failure.★

Component: TMOS

Symptoms:
Despite having free memory, the BIG-IP system frequently logs kernel page allocation failures on B4450N blades to the /var/log/kern.log file like the following:

swapper/16: page allocation failure: order:2, mode:0x104020

After that, a stack trace follows. Note that the process name in the line ('swapper/16', in this example) varies. You may see generic Linux processes or processes specific to F5 in that line.

Conditions:
This occurs on B4450N blades regardless of configuration.

Impact:
As different processes can experience this issue, the system may behave unpredictably. For example, it is possible for a TMOS installation to fail as a result of this issue. Other processes may not exhibit any side effect as a result of this issue. The exact impact depends on which process becomes affected and how this process is designed to handle such a failure to allocate memory.

Workaround:
You must perform the workaround on each blade installed in the system.

-- If you want the workaround to survive reboots only, perform the following procedure:

1) Log on to the advanced shell (BASH) of the primary blade of the affected VIPRION system.

2) Run the following commands:

# clsh "sysctl -w vm.min_free_kbytes=131072"
# clsh "echo -e '\n# Workaround for ID950849' >> /etc/sysctl.conf"
# clsh "echo 'vm.min_free_kbytes = 131072' >> /etc/sysctl.conf"

-- If you want the workaround to survive reboots, upgrades, RMAs, etc., perform the following procedure:

1) Log on to the advanced shell (BASH) of the primary blade of the affected VIPRION system.

2) Run the following commands (with the desired amount in KB):

# clsh "sysctl -w vm.min_free_kbytes=131072"
# echo -e '\n# Workaround for ID950849' >> /config/startup
# echo 'sysctl -w vm.min_free_kbytes=131072' >> /config/startup

Note that the last two commands are not wrapped inside 'clsh' because the /config/startup file is already automatically synchronized across all blades.

Once the issue is fixed in a future BIG-IP version, remove the workarounds:

-- To remove the first workaround:

1) Edit the /etc/sysctl.conf file on all blades and remove the added lines at the bottom.

2) Reboot the system by running 'clsh reboot'. This will restore the min_free_kbytes kernel parameter to its default value for the BIG-IP version you are running.

-- To remove the second workaround:

1) Edit the /config/startup file on the primary blade only, and remove the extra lines at the bottom.

2) Reboot the system by running 'clsh reboot'. This restores the min_free_kbytes kernel parameter to its default value for the BIG-IP version you are running.

To verify the workaround is in place, run the following command (this should return the desired amount in KB):

# clsh "cat /proc/sys/vm/min_free_kbytes"

Fix:
The BIG-IP system no longer experiences kernel page allocation failures on B4450 (A114) blades.

950077-2 : TMUI authenticated remote command execution vulnerabilities CVE-2021-22987 and CVE-2021-22988

Solution Article: K18132488 K70031188

950017-2 : TMM may crash while processing SCTP traffic

Solution Article: K94941221

949933-1 : BIG-IP APM CTU vulnerability CVE-2021-22980

Solution Article: K29282483

949889-3 : CVE-2019-3900: An infinite loop issue was found in the vhost_net kernel module while handling incoming packets in handle_rx()

Solution Article: K04107324

949593-3 : Unable to load config if AVR widgets were created under '[All]' partition★

Component: Application Visibility and Reporting

Symptoms:
When upgrading to or loading saved configuration on BIG-IP software v13.0.0 or later, if the configuration contains AVR widgets created under a partition of '[All]', the config load fails.

Conditions:
This occurs if one or more AVR widgets in the configuration was created under the read-only '[All]' pseudo-partition.
This could have occurred if you were running a version of BIG-IP which did not include the fix for ID 721408.

Impact:
Upgrading to or loading an affected configuration on BIG-IP v13.x or later fails.

Workaround:
Manually edit the /config/bigip.conf configuration file and change '[All]' to 'Common':

# sed -i 's/\\\[All\]/Common/g' /config/bigip.conf
# tmsh load sys config
# tmsh save sys config

This should be done before upgrading to BIG-IP v13.x or later, or before saving configuration to be loaded later, or before loading a saved configuration from the config files.

Fix:
It is possible to successfully upgrade from or load a configuration containing one or more AVR widgets created under the read-only '\[All]' pseudo-partition or under other not existing partitions. With the current fix all partitions are changed to "Common" during upgrade.

949145-5 : Improve TCP's response to partial ACKs during loss recovery

Component: Local Traffic Manager

Symptoms:
- A bursty retransmission occurs during TCP's loss recovery period.

Conditions:
- TCP filter is used.
- TCP stack is used instead of TCP4 stack (based on profile settings).
- Packet loss occurs during the data transfer and TCP's loss recovery takes place.

Impact:
The bursty retransmissions may lead to more data getting lost due to large amount of data being injected into the network.

Workaround:
In versions prior to v16.0.0, use a TCP profile which selects the TCP4 stack instead of the TCP stack. There is no workaround for version 16.0.0.

Fix:
Partial ACK handling during loss recovery is improved.

948769-5 : TMM panic with SCTP traffic

Solution Article: K05300051

948757-2 : A snat-translation address responds to ARP requests but not to ICMP ECHO requests.

Component: Local Traffic Manager

Symptoms:
A snat-translation address with ARP enabled responds to ARP requests but not ICMP ECHO requests.

Conditions:
A snat-translation address is configured with ARP enabled.

Impact:
Application traffic should not be impacted, as external hosts trying to resolve the snat-translation and return traffic to it should still be able to do so; however, ping is an important network troubleshooting tool, and not being able to ping the address may create confusion.

Workaround:
None.

Fix:
A snat-translation now correctly responds to both ARP requests and ICMP ECHO requests.

948717-3 : F5-pf_daemon_cond_restart uses excessive CPU★

Component: TMOS

Symptoms:
The script /etc/init.d/f5-pf_daemon_cond_restart spawns a lot of ephemeral processes that collectively use about 10-15% of a core, regardless of the number of cores.

This is contributing to higher CPU usage after upgrading from an earlier version

Conditions:
On upgrade to a 15.1.x version, high CPU usage is observed.

Impact:
Higher CPU utilization on control plane, typically the equivalent of about 10-15% (of one core) extra.

Workaround:
None.

948573-4 : Wr_urldbd list of valid TLDs needs to be updated

Component: Traffic Classification Engine

Symptoms:
Several new TLDs have been added and need to be classified. The classification results return "Unknown" when the new TLD is being queried.

Conditions:
New TLD is being queried

Impact:
The URL query with new TLDs can not be blocked with custom feed list.
Custom, Webroot, and Cloud returns Unknown category.

Workaround:
Configure CPM policy to classify traffic based on hostname or SNI rather than urlcat.

948417-2 : Network Management Agent (Azure NMAgent) updates causes Kernel Panic

Component: Performance

Symptoms:
- TMM crashes
- kernel panics
- BIG-IP core file created
- Cloud Failover Extension unexpected behavior (where applicable)

Conditions:
- BIG-IP Azure Virtual Edition
- Azure Host performs a Network Management Agent (NMAgent) update while TMM is running
- BIG-IP VE using Accelerated Networking

Impact:
- Traffic disrupted while tmm restarts
- BIG-IP restarts
- Cloud Failover Extension state data lost (where applicable)

Workaround:
- Disable Accelerated Networking on BIG-IP network interfaces (Reversed settings from Azure documentation)

     Individual VMs & VMs in an availability set
     First stop/deallocate the VM or, if an Availability Set, all the VMs in the Set:
           Azure CLI
                az vm deallocate \
                --resource-group myResourceGroup \
                --name myVM
    Important, please note, if your VM was created individually, without an availability set, you only need to stop/deallocate
    the individual VM to disable Accelerated Networking. If your VM was created with an availability set, all VMs contained in
    the availability set will need to be stopped/deallocated before disabling Accelerated Networking on any of the NICs.

    Once stopped, disable Accelerated Networking on the NIC of your VM:
           Azure CLI
                az network nic update \
                --name myNic \
                --resource-group myResourceGroup \
                --accelerated-networking false
    Restart your VM or, if in an Availability Set, all the VMs in the Set and confirm that Accelerated Networking is disabled:
           Azure CLI
                az vm start --resource-group myResourceGroup \
                --name myVM

948073-2 : Dual stack download support for IP Intelligence Database

Component: Advanced Firewall Manager

Symptoms:
IP Intelligence cannot function if the BIG-IP management IP network is strict IPv6.

Conditions:
- IP Intelligence License installed
- Management IP is configured with only IPv6 addresses.

Impact:
The BIG-IP systems configured with IPv6 management networks cannot use IP Intelligence features even though they have installed IP Intelligence licenses.

Workaround:
None

Fix:
BIG-IP can now download the IP Intelligence database over IPv4 and IPv6 management networks.

Behavior Change:
BIG-IP can now download the IP Intelligence database over IPv4 and IPv6 management networks.

947865-2 : Pam-authenticator crash - pam_tacplus segfault or sigabort in tac_author_read

Component: TMOS

Symptoms:
Pam-authenticator cores. There is a log message in /var/log/user/log:

err pam-authenticator: tac_author_read: short author header, -1 of 12: Connection reset by peer

Conditions:
-- TACACS auth configured on BIG-IP
-- A BIG-IP user authenticates and the user is a TACACS user
-- The TACACS server resets the connection.

Impact:
Pam-authenticator fails with segfault or sigabrt, and the user is unable to authenticate to BIG-IP.

947341-1 : MySQL generates multiple error 24 (too many files open) for PRX.REQUEST_LOG DB tables files

Component: Application Security Manager

Symptoms:
1) var/lib/mysql/mysqld.err is filled with log entries containing:
------------
  200824 11:04:43 [ERROR] mysqld: Can't open file: './PRX/REQUEST_LOG.frm' (errno: 24)
  200824 11:18:46 [ERROR] mysqld: Can't open file: './PRX/REQUEST_LOG.frm' (errno: 24)
  200824 11:35:58 [ERROR] mysqld: Can't open file: './PRX/REQUEST_LOG.frm' (errno: 24)
------------

2) There are a lot of PRX.REQUEST_LOG partitions, in some cases up to 1024, many of which are empty.

Conditions:
ASM/AVR provisioned

Impact:
MySQL out of resources when opening files
PRX.REQUEST_LOG Corrupt

Workaround:
0) If the /appdata partition is filled to 100% and MySQL restarts continuously, refer to the following Knowledge Articles:
   https://support.f5.com/csp/article/K14956
   https://support.f5.com/csp/article/K42497314

1) To identify the empty partitions, look into:
   SELECT * FROM INFORMATION_SCHEMA.PARTITIONS WHERE table_name = 'REQUEST_LOG' AND table_schema = 'PRX'\G

2) For every partition that is empty, manually (or via shell script) execute this sql:
   ALTER TABLE PRX.REQUEST_LOG DROP PARTITION empty_partition_name
where 'empty_partition_name' is the partition name as 'p100001'

4) Increase 'open_files_limit' to '10000'.
--------------------------------
In the /etc/my.cnf file:
1. Change the value of the 'open_files_limit' parameter to 10000.
2. Restart MySQL:
   bigstart restart mysql
--------------------------------

5) pkill asmlogd

Note: This workaround does not survive upgrade. It must be reapplied after every upgrade until the upgraded version contains a fix.

Fix:
This release increases 'open_files_limit' to '10000'.

946953-1 : HTTP::close used in iRule might not close connection.

Component: Local Traffic Manager

Symptoms:
HTTP::close used in an iRule might not close the connection. For example:

when HTTP_REQUEST {
    HTTP::close
    HTTP::respond 200 -version 1.1 content "OK" Content-Type text/plain
  }

Conditions:
Using HTTP::close along with HTTP::respond

Impact:
HTTP connection can be re-used.

Workaround:
Explicitly add close header in the HTTP::respond. For example:

HTTP::respond 200 content "OK" Connection close

Fix:
Fixed an issue where HTTP::close might not close a connection.

946745-2 : 'System Integrity: Invalid' after Engineering Hotfix installation

Component: TMOS

Symptoms:
The 'tmsh run sys integrity status-check -a -v' or 'tpm-status' commands incorrectly report system integrity status as 'Invalid' even when the system software has not been modified.

Conditions:
This occurs if all of the following conditions are true:

-- BIG-IP software v14.1.0 or later version.
-- Engineering Hotfix installed on TPM-supported BIG-IP platform.
-- The Engineering Hotfix contains a fix for ID893885 (https://cdn.f5.com/product/bugtracker/ID893885.html).
-- The Engineering Hotfix contains an updated 'sirr-tmos' package.

Impact:
Incorrect presentation of system software status; the status shows INVALID when it is actually valid.

Workaround:
None.

Fix:
Trusted Platform Module (TPM) status now shows the correct system integrity status when an Engineering Hotfix is installed.

946377-2 : HSM WebUI Hardening

Solution Article: K24301698

946125-2 : Tmm restart adds 'Revoked' tokens to 'Active' token count

Component: Access Policy Manager

Symptoms:
End users are unable to access an application even though the active tokens are far less than allowed limit, with this error:
/Common/my_oauth:Common: Request Access Token from Source ID <id> IP <ip> failed. Error Code (access_denied) Error Description (This user has reached configured access token limit.)

Conditions:
1. configure per user access token limit
2. revoke some tokens
3. restart tmm

Impact:
User is denied access even though token limit per user is not reached

Fix:
Fixed an issue where users were unable to log in after a tmm restart.

946089-2 : BIG-IP might send excessive multicast/broadcast traffic.

Component: TMOS

Symptoms:
BIG-IP might transmit excessive multicast/broadcast traffic.

Conditions:
-- BIG-IP Virtual Edition with more than one TMM.
-- Number of excessive packets is directly proportional to the number of TMMs.

Impact:
Excessive multicast/broadcast traffic.

946081-1 : Getcrc tool help displays directory structure instead of version

Component: Application Security Manager

Symptoms:
When getcrc tool displays help to the end user, it displays a directory structure instead of version.

Conditions:
Displaying help in getcrc utility.

Impact:
Version information is not displayed.

Fix:
Getcrc utility help now displays version information.

945997-2 : LTM policy applied to HTTP/2 traffic may crash TMM

Component: Local Traffic Manager

Symptoms:
When an LTM policy is applied to HTTP/2 traffic and refers to TCL expression(s), TMM may crash.

Conditions:
-- A virtual is configured with http and http2 profiles.
-- An LTM policy is published and refers to TCL expression(s).
-- The policy is attached to the virtual server.

Impact:
Traffic disrupted while tmm restarts.

Fix:
BIG-IP properly processes LTM policy with TCL expression(s) when it is applied to a virtual handling HTTP/2 traffic.

945853-2 : Tmm crash when multiple virtual servers are created, modified, or deleted in quick succession

Component: Advanced Firewall Manager

Symptoms:
TMM crashes during a configuration change.

Conditions:
This occurs under the following conditions:

-- Create/modify/delete multiple virtual servers in quick succession.

-- Perform back-to-back config loads / UCS loads containing a large number of virtual server configurations.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
TMM no longer crashes during a configuration change.

945265-4 : BGP may advertise default route with incorrect parameters

Component: TMOS

Symptoms:
If a BGP neighbor is configured with 'default originate,' the nexthop advertised for the default route may be incorrect.

Conditions:
-- Dynamic routing enabled.
-- Using BGP.
-- BGP neighbor configured with 'default originate'.

Impact:
The default route advertised via BGP is not acceptable to peers until the BGP session is cleared.

Workaround:
In imish, run the command:
clear ip bgp <affected neighbor address>

945109-2 : Freetype Parser Skip Token Vulnerability CVE-2015-9382

Solution Article: K46641512

944785-2 : Admd restarting constantly. Out of memory due to loading malformed state file

Component: Anomaly Detection Services

Symptoms:
Admd consumes more than 10GB of RSS
Wrong signature statistics and possible memory corruption, potentially results in high memory consumption.

Conditions:
-- Upgrading from 13.x, 14.x to 15.x
-- Device service clustering configuration
-- App-Protect-DOS signatures configured.

Impact:
ADMD not working, ADMD constantly restarting, consuming all of the system memory. Out of memory. ADMD killed due to memory consumption

Workaround:
Make sure that all the devices within a cluster are running compatible state file version (either all with versions before 15.1.0.x or after), if not, then:
1. Stop ADMD on all of those devices: bigstart stop admd
2. Upgrade or Downgrade the BIG-IP version to match the above criteria.
3. Remove the old state files: rm -rf /var/run/adm/*
4. Start ADMD: bigstart start ADMD

If there is an issue on a single blade device, then:
1. Stop ADMD on all of those machines: bigstart stop admd
2. Remove the old state files: rm -rf /var/run/adm/*
3. Start ADMD: bigstart start ADMD

Fix:
No more memory corruption, no OOM nor ADMD restarts.

944641-1 : HTTP2 send RST_STREAM when exceeding max streams

Component: Local Traffic Manager

Symptoms:
If the SETTINGS_MAX_CONCURRENT_STREAMS setting is exceeded, BIG-IP sends a GOAWAY frame; however, browsers expect a RST_STREAM and the GOAWAY frame results in a half-rendered web page.

Conditions:
The maximum streams setting is exceeded on a HTTP/2 connection.

Impact:
BIG-IP sends a GOAWAY frame, and the browser shows a half-rendered page.

Workaround:
None.

Fix:
BIG-IP now sends a RST_STREAM if the maximum streams setting is exceeded.

944513-2 : Apache configuration file hardening

Component: TMOS

Symptoms:
Apache configuration file did not follow security best practice.

Conditions:
Normal system operation with httpd enabled.

Impact:
Apache configuration file did not follow security best practice.

Workaround:
None

Fix:
Apache configuration file has been hardened to follow security best practice.

944441-2 : BD_XML logs memory usage at TS_DEBUG level

Component: Application Security Manager

Conditions:
These messages can occur when XML/JSON profiles are configured.

Impact:
Messages that should be logged at the TS_INFO level are logged at the TS_DEBUG level. These are informational log messages.

Workaround:
None

Fix:
The relevant two BD_XML logs are now categorized as TS_INFO.

943913-3 : ASM attack signature does not match

Solution Article: K30150004

Component: Application Security Manager

Symptoms:
When processing certain traffic, ASM attack signatures may not match as intended.

Conditions:
- ASM enabled
- Undisclosed attack signature variation

Impact:
ASM attack signature does not match or trigger further processing.

Workaround:
N/A

Fix:
ASM now processes traffic as expected.

943669-1 : B4450 blade reboot

Component: TMOS

Symptoms:
In a rare scenario, a B4450 blade suddenly reboots.

Conditions:
This occurs when there is heavy traffic load on VIPRION B4450 blades. The root cause is unknown. It happens extremely rarely.

Impact:
Traffic disrupted while the blade reboots.

Workaround:
None.

Fix:
The system now monitors the pause frames and reboots when needed.

943125-2 : ASM bd may crash while processing WebSocket traffic

Solution Article: K18570111

943101-2 : Tmm crash in cipher group delete.

Component: Local Traffic Manager

Symptoms:
Deleting a cipher group associated with multiple profiles could cause tmm crash.

Conditions:
Deleting a cipher group associated with multiple profiles.

Impact:
Traffic disrupted while tmm restarts.

Fix:
Fixed an issue with cipher group delete.

943081-3 : Unspecified HTTP/2 traffic may cause TMM to crash

Solution Article: K90603426

942701-2 : TMM may consume excessive resources while processing HTTP traffic

Solution Article: K35408374

942581-1 : Timestamp cookies do not work with hardware accelerated flows

Component: Advanced Firewall Manager

Symptoms:
Time stamp cookies and hardware accelerated flows are mutually exclusive.

Conditions:
Time stamp cookie enabled for TCP flows on a VLAN with hardware offload enabled as well.

Impact:
Reduced traffic throughput and increased CPU usage

Fix:
FPGA and software enhancement to allow hardware accelerate of TCP flows that have time stamp cookie enabled.

942497-1 : Declarative onboarding unable to download and install RPM

Component: TMOS

Symptoms:
Installation of declarative onboarding RPM fails.

Conditions:
Use of icontrollx_package_urls in tmos_declared block to download/install RPMs via a URL.

Impact:
RPMs cannot be downloaded for declarative onboarding where RPMs are referenced via URL.

Workaround:
RPMs must be installed manually.

Fix:
The installation directory was updated to fix the RPM installation issue.

942185-2 : Non-mirrored persistence records may accumulate over time

Component: Local Traffic Manager

Symptoms:
Persistence records accumulate over time due to expiration process not reliably taking effect. The 'persist' memory type grows over time.

Conditions:
-- Non-cookie, non-mirrored persistence configured.
-- No high availability (HA) configured or HA connection permanently down.
-- Traffic that activates persistence is occurring.

Impact:
Memory pressure eventually impacts servicing of traffic in a variety of ways. Aggressive sweeper runs and terminates active connections. TMM may restart. Traffic disrupted while tmm restarts.

Workaround:
None

Fix:
Persistence records are now reliably expired at the appropriate time.

941929-2 : Google Analytics shows incorrect stats, when Google link is redirected.

Component: Application Security Manager

Symptoms:
When server respond with a redirect, ASM challenge makes Google Analytics stats appear as if they are 'Direct' instead of 'Organic'.

Conditions:
-- Google link is responded to (by the server) with a redirect.

-- Bot defense profile or DoS Application profile attached to a virtual server with challenge mitigation enabled.

Impact:
Incorrect data is displayed in the Google Analytics dashboard.

Workaround:
None

941893-3 : VE performance tests in Azure causes loss of connectivity to objects in configuration

Component: TMOS

Symptoms:
When performance tests are run on BIG-IP Virtual Edition (VE) in Microsoft Azure, the BIG-IP system loses all connectivity to the pools, virtual servers, and management address. It remains unresponsive until it is rebooted from the Azure console.

Conditions:
Running performance tests of VE in Azure.

Impact:
The GUI becomes unresponsive during performance testing. VE is unusable and must be rebooted from the Azure console.

Workaround:
Reboot from the Azure console to restore functionality.

941853-1 : Logging Profiles do not disassociate from virtual server when multiple changes are made

Component: Application Security Manager

Symptoms:
When multiple Logging Profiles profile changes are made in a single update, the previous Logging Profiles are not disassociated from the virtual server. Additionally, when an Application Security Logging Profile change is made, newly added Protocol Security Logging Profile settings do not take effect.

Conditions:
Multiple Logging Profile changes are made in a single update.

Impact:
The previous Logging Profiles are not disassociated from the virtual server.

Workaround:
Perform each Log Profile change individually. For example, to change an Application Security Log Profile:
1. Remove the current association and save.
2. Add the new association and save again.

941625-1 : BD sometimes encounters errors related to TS cookie building

Component: Application Security Manager

Symptoms:
BD sometimes print errors related to TS cookie building when receiving ASM cookies with account_id:

-- BEM|ERR |May 19 17:49:55.800|0983|response_header_accumulator.c:0200|Error: CookieMgrBuildCookie failed. ans 1 job 2957561040.

-- IO_PLUGIN|ERR |May 19 17:49:55.800|0983|io_plugin.c:3320|TMEVT_RESPONSE: Cannot build a ts cookie.

Conditions:
-- Cookie protection is enabled.
-- The BIG-IP software is upgraded from a version that was earlier than 15.1.x.

Impact:
The cookie is not built and an error is logged.

Workaround:
None.

941621-2 : Brute Force breaks server's Post-Redirect-Get flow

Solution Article: K91414704

Component: Application Security Manager

Symptoms:
Brute Force breaks server's Post-Redirect-Get flow

Conditions:
ASM policy is attached to VS
Brute force protection is enabled.
CSI challenge or Captcha are in use.
Server implements Post-Redirect-Get flow.

Impact:
Brute Force breaks server's Post-Redirect-Get flow

Workaround:
None

Fix:
Support PRG mechanism in brute force mitigations.

941481-2 : iRules LX - nodejs processes consuming excessive memory

Component: Local Traffic Manager

Symptoms:
iRule LX nodejs processes can leak memory. The iRule LX plugin nodejs processes memory usage climbs over time and does not return to prior levels.

You can check the iRule LX plugins memory usage using the command:

tmsh show ilx plugin <PLUGIN_NAME>' under 'Memory (bytes):

Memory (bytes)
Total Virtual Size 946.8M
Resident Set Size 14.5K

Conditions:
-- iRulesLX in use.

Impact:
iRule LX nodejs processes memory usage keeps growing.
The unbounded memory growth can eventually impact other Linux host daemons.

Workaround:
Restart the iRule LX plugin that is leaking memory:

tmsh restart ilx plugin <PLUGIN_NAME>

941449-2 : BIG-IP Advanced WAF and ASM XSS vulnerability CVE-2021-22993

Solution Article: K55237223

941257-1 : Occasional Nitrox3 ZIP engine hang

Component: Local Traffic Manager

Symptoms:
Occasionally the Nitrox3 ZIP engine hangs.

In /var/log/ltm:

crit tmm[12404]: 01010025:2: Device error: n3-compress0 Nitrox 3, Hang Detected: compression device was reset (pci 02:00.1, discarded 1).
crit tmm[12404]: 01010025:2: Device error: n3-compress0 Zip engine ctx eviction (comp_code=0): ctx dropped.

Conditions:
BIG-IP appliance that uses the Nitrox 3 hardware compression chip: 5xxx, 7xxx, 12250 and B2250.

You can check if your platform has the nitrox3 by running the following command:

tmctl -w 200 compress -s provider

provider
--------
bzip2
lzo
nitrox3 <--------
zlib

Impact:
The Nitrox3 hardware compression system becomes unavailable and the compression mode switches to software compression. This can lead to high CPU usage.

Workaround:
Disable http compression

941249-2 : Improvement to getcrc tool to print cookie names when cookie attributes are involved

Component: Application Security Manager

Symptoms:
The name provided by getcrc tool provides incorrect ASM cookie name when cookie attributes path or/and domain is/are present in response from server

Conditions:
This is applicable when domain and path cookie attributes are present in response from server

Impact:
ASM cookie name which is displayed is incorrect

Workaround:
None

Fix:
More options need to be added to getcrc tool such that it caters for path/domain cookie attribute/s

941169-4 : Subscriber Management is not working properly with IPv6 prefix flows.

Component: Policy Enforcement Manager

Symptoms:
Flows for a PEM subscriber are not deleted from the system even after the subscriber is deleted.

Conditions:
When IPv6 prefix flows are configured on PEM (i.e., sys db variable tmm.pem.session.ipv6.prefix.len is configured with a value other than 128).

Impact:
Flows for a PEM subscriber are not deleted from the system even after the subscriber is deleted. Resources are not released from the system.

Workaround:
None.

941089-3 : TMM core when using Multipath TCP

Component: Local Traffic Manager

Symptoms:
In some cases, TMM might crash when processing MPTCP traffic.

Conditions:
A TCP profile with 'Multipath TCP' enabled is attached to a virtual server.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
There is no workaround other than to disable MPTCP.

Fix:
TMM no longer produces a core.

940897-3 : Violations are detected for incorrect parameter in case of "Maximum Array/Object Elements" is reached

Component: Application Security Manager

Symptoms:
False positive violations are detected for incorrect parameter in case of "Maximum Array/Object Elements" is reached with enabled "Parse Parameter".

Conditions:
"JSON data does not comply with format settings" and "Illegal meta character in value" violations are enabled and content profile parsing is enabled in ASM.

Impact:
False positives detected, such as "Illegal meta character in value" violation and attack signature for incorrect context.

Workaround:
N/A

Fix:
No false positives detected.

940665-1 : DTLS 1.0 support for PFS ciphers

Component: Local Traffic Manager

Symptoms:
When using DTLS 1.0 the following two PFS ciphers are no longer negotiated and they cannot be used in a DTLS handshake/connection.

* ECDHE-RSA-AES128-CBC-SHA
* ECDHE-RSA-AES256-CBC-SHA

Conditions:
DTLS 1.0 is configured in an SSL profile.

Impact:
ECDHE-RSA-AES128-CBC-SHA and ECDHE-RSA-AES256-CBC-SHA are unavailable.

940401-2 : Mobile Security 'Rooting/Jailbreak Detection' now reads 'Rooting Detection'

Component: Fraud Protection Services

Symptoms:
MobileSafe SDK does not support iOS jailbreak detection, so the GUI should refer only to Android Rooting Detection.

Conditions:
-- Fraud Protection Service (FPS) provisioned.
-- FPS and MobileSafe Licensed.

Impact:
Introduces confusion when indicating that iOS jailbreak detection is supported, which it is not.

Workaround:
None.

Fix:
Section now reads 'Rooting Detection'.

940249-2 : Sensitive data is not masked after "Maximum Array/Object Elements" is reached

Component: Application Security Manager

Symptoms:
If "Maximum Array/Object Elements" is reached and "JSON data does not comply with format settings" is detected, then all sensitive
data after last allowed element is not masked.

Conditions:
Define JSON profile, set "JSON data does not comply with format settings" to blocking and set "Maximum Array/Object Elements" to desired value.

Impact:
Data after last allowed element is not masked.

Fix:
Now the values are masked.

940209 : Chunked responses with congested client connection may result in server-side TCP connections hanging until timeout.

Component: Local Traffic Manager

Symptoms:
When an HTTP/2 profile is configured on the client side, chunked responses are always sent unchunked. When a connection to a client is congested, the BIG-IP system may not properly close established server-side connections causing subsequent HTTP/2 requests to stall.

Conditions:
-- A virtual server with an HTTP/2 profile configured on the client side.
-- A server responds with a chunked response.

Impact:
HTTP/2 requests intermittently stall due to the existing server-side TCP connection remaining open.

Workaround:
Configure an HTTP profile on the client side with a value of 'unchunk' on the response-chunking option.

Fix:
HTTP/2 requests no longer stall, as the server side TCP connection is properly closed.

940021-3 : Syslog-ng hang may lead to unexpected reboot

Component: TMOS

Symptoms:
A syslog-ng issue with remote logging to an invalid remote syslog server may lead to unexpected reboot.

The BIG-IP may unexpectedly reboot after a host watchdog timeout when syslog-ng gets hung up.

Logs via syslog-ng are no longer written, though logging not via syslog-ng continues unaffected.
This happens at the time of the last 'Syslog connection broken' in /var/log/messages before reboot.
That message will appear without a preceding 'Syslog connection established' just before it with same timestamp.

At this time syslog-ng typically spins, using near 100% CPU (just one core equivalent, not all CPU capacity on system).

Typically things appear fine on rest of system - there will usually be adequate CPU and memory.
Hours or days later graphs will have a gap of usually tens of minutes to hours before an unexpected reboot.

Post reboot logs (in /var/log/sel for iSeries or ltm log otherwise) show this is a host watchdog reboot.
After reboot the system runs correctly, though if the syslog-ng remote server was invalid this remains the case.

Conditions:
Invalid syslog-ng server configuration or broken connection from BIG-IP toward configured syslog-ng remote server.

A server is configured as a remote syslog destination on the BIG-IP, but it or an intervening system responds to stream of log messages by breaking connection eg by sending ICMP port unreachable to BIG-IP.

Syslog-ng will note the connection attempt and that it has broken usually in the same second, and do so every 60s when it retries.
There may be many of these log pairs, repeating every minute in /var/log/messages, such as:

  Nov 25 03:14:01 localhost.localdomain notice syslog-ng[12452]: Syslog connection established; fd='14', server='AF_INET(192.168.1.1:514)', local='AF_INET(0.0.0.0:0)'
  Nov 25 03:14:01 localhost.localdomain notice syslog-ng[12452]: Syslog connection broken; fd='14', server='AF_INET(192.168.1.1:514)', time_reopen='60'

The final log will of a broken connection only, usually one minute after the last established/broken pair.

  Nov 25 03:15:01 localhost.localdomain notice syslog-ng[12452]: Syslog connection broken; fd='14', server='AF_INET(192.168.1.1:514)', time_reopen='60'

Impact:
Very rarely syslog-ng hangs in a non-functional state. Sometimes, this may lead to an unexpected reboot of BIG-IP. Loss of logs before restart and traffic disrupted while BIG-IP restarts.

Workaround:
Ensure syslog-ng server configuration is valid, and that the server is reachable.

Fix:
Fixed an issue with syslog-ng hang occasionally causing a system restart.

939961-2 : TCP connection is closed when necessary after HTTP::respond iRule.

Component: Local Traffic Manager

Symptoms:
After HTTP::respond iRule, when "Connection: close" header is sent to the client, TCP connection is not closed.

Conditions:
- TCP profile is used.
- HTTP profile is used.
- HTTP::respond iRule is used (via HTTP_RESPONSE).
- HTTP sends "Connection: close" header.

Impact:
TCP connection lives longer than needed.

Workaround:
N/A

Fix:
TCP connection is closed when necessary after responding with HTTP::respond iRule.

939877-1 : OAuth refresh token not found

Component: Access Policy Manager

Symptoms:
When an OAuth client sends a refresh token to renew the access token, BIG-IP reports an error:

err tmm[13354]: 01990004:3: /Common/my_OAuth_v1:Common: Request Refresh Token from Source ID ... failed. Error Code (id_not_found) Error Description (The refresh token is not found)

Conditions:
-- The refresh token expiration interval is longer than authcode and accesstoken.
-- The Authorization code table entry does not exist because of an internal clearing/purging operation.
-- tmm restarts or failover to standby thus losing refresh-token value from primarydb

Impact:
OAuth APM client end user fails to renew the access token even with a valid refresh token.

Workaround:
Clear/reset the Authorization code column value manually:

As a root user run below BIG-IP shell
(tmos)# list apm oauth db-instance
apm oauth db-instance oauthdb { db-name <db_name> description "Default OAuth DB." }

Copy the value corresponding to <db_name>.

Log into mysql from the bash prompt:
# mysql -u root -p$(perl -MPassCrypt -nle 'print PassCrypt::decrypt_password($_)' /var/db/mysqlpw)

mysql> use <db_name>;

mysql> update master set auth_code = NULL where refresh_token='affected_refresh_token_id';

(Substitute the affected refresh token ID with affected_refresh_token_id in the previous command.)

Fix:
Do not report error if the Authorization code does not exist when a valid refresh-token/access-token exists.

939845-2 : BIG-IP MPTCP vulnerability CVE-2021-23004

Solution Article: K31025212

939841-2 : BIG-IP MPTCP vulnerability CVE-2021-23003

Solution Article: K43470422

939541-2 : TMM may prematurely shut down during initialization when a lot of TMMs and interfaces are configured on a VE

Component: TMOS

Symptoms:
TMM may prematurely shut down (during its initialization) when several TMMs and interfaces are configured. The system logs messages in one or more TMM log files (/var/log/tmm*):
MCP connection aborted, exiting.

Impact:
TMM shuts down prematurely. Traffic disrupted while tmm restarts. Possible deadlock and MCP restart loop requiring a full reboot of the BIG-IP device.

Workaround:
None.

Fix:
TMM no longer shuts down prematurely during initialization.

939529-2 : Branch parameter not parsed properly when topmost via header received with comma separated values

Component: Service Provider

Symptoms:
MRF SIP in LoadBalancing Operation Mode inserts a VIA header to SIP request messages. This Via header is removed from the returned response message. The VIA header contains encrypted routing information to route the response message. The SIP specification states that INVITE/CANCEL messages in a dialogue should contain the same branch header. The code used to encrypt the branch field returns a different branch ID for INVITE and CANCEL messages.

Conditions:
-- Enabling SIP Via header insertion on the BIG-IP system.
-- SIP MRF profile.
-- Need to cancel an INVITE.
-- INVITE Via header received with multiple comma-separated values.

Impact:
Some SIP clients have code to verify the branch fields in the Via header. These clients expect the branch to be same for INVITE and CANCEL in a dialogue. Because the branch received is different, these clients are unable to identify the specific INVITE transaction. CANCEL is received and client sends a 481 error:

SIP/2.0 481 Call/Transaction Does Not Exist.

Workaround:
Use iRules to remove the topmost Via header and add new a new Via header that uses the same branch as INVITE and CANCEL while sending messages to SIP clients.

Fix:
The BIG-IP system now ensures the branch field inserted in the via header same for INVITE and CANCEL messages.

939421-2 : CVE-2020-10029: Pseudo-zero values are not validated causing a stack corruption due to a stack-based overflow

Solution Article: K38481791

938233-2 : An unspecified traffic pattern can lead to high memory accumulation and high CPU utilization

Solution Article: K93231374

938165-1 : TMM Core after attempted update of IP geolocation database file

Component: Advanced Firewall Manager

Symptoms:
TMM crashes while running traffic that uses AFM Firewall policies.

Conditions:
-- Update IP geolocation database file to the latest version.
-- Configure AFM policies with logging enabled.
-- Run traffic which hits the AFM policies and triggers logging.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Revert to using the previously working version of the IP-geolocation file.

For more information, see K11176: Downloading and installing updates to the IP geolocation database :: https://support.f5.com/csp/article/K11176#restore.

Fix:
The BIG-IP system now validates the region/country strings returned by the geolocation database for IP addresses used in the traffic.

938149-1 : Port Block Update log message is missing the "Start time" field

Component: Advanced Firewall Manager

Symptoms:
Port Block Update log message is missing the "Start time" field.

Conditions:
-- Configure PBA mode in AFMNAT/CGNAT with subscriber awareness.
-- Trigger PBA Update log messages with change in susbsriber name for the same client IP address.

Impact:
NAT Log information is not usable for accounting purpose.

Fix:
Set the "start time" and "duration" log fields for all types of PBA log messages.

937749-3 : The 'total port blocks' value for NAT stats is limited to 64 bits of range

Component: Advanced Firewall Manager

Symptoms:
The 'total port blocks' value, which can be found in PBA 'tmctl' tables, 'tmsh show', and SNMP, is limited to 64 bits of range. The upper 64 bits of the value are not taken into account.

Conditions:
This always occurs, but affects only systems whose configuration makes the 'total port blocks' value exceed 64 bits of range.

Impact:
Incorrect statistics.

Workaround:
None.

Note: For those who really need this value, it is still possible to manually calculate it, but that is not a true workaround.

937637-3 : BIG-IP APM VPN vulnerability CVE-2021-23002

Solution Article: K71891773

937365-2 : LTM UI does not follow best practices

Solution Article: K42526507

937333-2 : Incomplete validation of input in unspecified forms

Component: Global Traffic Manager (DNS)

Symptoms:
Incomplete validation of input in unspecified forms

Conditions:
DNS Provisioned

Impact:
Incomplete validation

Fix:
Proper input validation now performed

936125-2 : SNMP request times out after configuring IPv6 trap destination

Component: TMOS

Symptoms:
SNMP request is times out.

Conditions:
This issue happens with TMOS version v15.1.0.4 or beyond after a IPv6 trap destination is configured.

Impact:
No response is returned for SNMP request.

Workaround:
Restart SNMP daemon by running the following TMSH command:

restart sys service snmpd

Fix:
N/A

935801-4 : HSB diagnostics are not provided under certain types of failures

Component: TMOS

Symptoms:
In rare cases where the HSB detects an error and triggers an high availability (HA) failover, HSB-specific diagnostic data is not provided.

An example are XLMAC errors, which can be seen in the LTM logs:

<13> Jul 25 18:49:41 notice The number of the HSB XLMAC recovery operation 11 or fcs failover count 0 reached threshold 11 on bus: 3.
<13> Jul 25 18:49:41 notice high availability (HA) failover action is triggered due to XLMAC/FCS erros on HSB1 on bus 3.

Conditions:
The HSB detects an internal error.

Impact:
There is less HSB data for analysis when an internal HSB occurs.

Workaround:
None.

Fix:
Dump HSB registers on all HSB initiated high availability (HA) failovers.

935721-5 : ISC BIND Vulnerabilities: CVE-2020-8622, CVE-2020-8623, CVE-2020-8624

Solution Article: K82252291

935593-4 : Incorrect SYN re-transmission handling with FastL4 timestamp rewrite

Component: Local Traffic Manager

Symptoms:
FastL4 profiles configured with the TCP timestamp rewrite option enabled does not treat retransmitted SYNs in a correct manner.

Conditions:
FastL4 profile with TCP timestamp rewrite option is in use.

Impact:
Timestamp on some TCP packets sent by BIG-IP systems might be incorrect.

Workaround:
Do not use TCP timestamp rewrite.

935433-2 : iControl SOAP

Solution Article: K53854428

935401-2 : BIG-IP Advanced WAF and ASM iControl REST vulnerability CVE-2021-23001

Solution Article: K06440657

935293-2 : 'Detected Violation' Field for event logs not showing

Component: Application Security Manager

Symptoms:
Violation is missing/details not populated in the event log page, when a POST request with large number of parameters are sent to the BIG IP system.

Conditions:
-- A large POST request with lots of parameters is sent to BIG-IP system.
-- 'Learn New Parameters' is enabled.

Impact:
You cannot see the violation details.

Workaround:
Disabling parameter learning helps.

Note: This happens only with a large number of parameters. Usually it works as expected.

Fix:
The eventlog is reserving space for violations.

935029-3 : TMM may crash while processing IPv6 NAT traffic

Solution Article: K04048104

934993-2 : BIG-IP resets HTTP/2 connections when a peer exceeds a number of concurrent streams

Component: Local Traffic Manager

Symptoms:
The HTTP/2 protocol allows informing a peer about the number of concurrent streams it is allowed to have. When this number is exceeded, the RFC stipulates that the system must serve all open streams and then terminate a connection.

Conditions:
-- The BIG-IP system has a virtual server with an HTTP/2 profile configured on the client side.
-- A client opens more streams than a configured value for concurrent-streams-per-connection in HTTP/2 profile.

Impact:
BIG-IP resets a connection and a client (browser) does not receive any response for outstanding requests. It requires manually reload of the webpage to address the issue.

Workaround:
None.

Fix:
When a peer exceeds a number of concurrent streams allowed by BIG-IP systems, it sends GOAWAY with a REFUSED_STREAM error code and allows graceful completion of all open streams, and then terminates the connection.

934941-2 : Platform FIPS power-up self test failures not logged to console

Component: TMOS

Symptoms:
The BIG-IP system does not log FIPS power-up self-test failures to the console.

Conditions:
A FIPS failure occurs during the power-up self test.

Impact:
Platform FIPS failures are made more difficult to identify and diagnose, because the system console fails to include anything at all that indicates a failure.

Workaround:
None.

934721-2 : TMM core due to wrong assert

Component: Application Visibility and Reporting

Symptoms:
TMM crashes with a core

Conditions:
AFM and AVR provisioned and collecting ACL statistics.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Disable the server-side statistics collection for the Network Firewall Rules using the following menu path:
Security :: Reporting : Settings : Reporting Settings : Network Firewall Rules.

Fix:
Fixed a tmm crash related to ACL statistics

934461-2 : Connection error with server with TLS1.3 single-dh-use.

Component: Local Traffic Manager

Symptoms:
Connection failure with TLS1.3 and single-dh-use configured.

Conditions:
14.1 with TLS1.3 single-dh-use.

Impact:
Connection failure in 14.1 versions.

Workaround:
Disable single-dh-use, or disable tls1.3.

Fix:
14.1 now supports TLS1.3 single-dh-use and hello retry on serverside.

934393-2 : APM authentication fails due to delay in sessionDB readiness

Component: Access Policy Manager

Symptoms:
APM Authentication fails, and apmd cores when trying to connect to sessionDB.

Conditions:
-- APM configured.
-- SAML SP configured.

Impact:
It takes a long time to create the configuration snapshot. Authentication fails and apmd cores.

Workaround:
Restart all services by entering the following command:
tmsh restart /sys service all

Note: Restarting all services causes temporary traffic disruption.

Fix:
The sessionDB readiness has been corrected so that authentication succeeds.

934241-2 : TMM may core when using FastL4's hardware offloading feature

Component: TMOS

Symptoms:
TMM cores.

Conditions:
FastL4's hardware offloading is used.

Because the error is an internal software logic implementation, there is no direct specific configuration that triggers this error condition. A quick traffic spike during a short period of time makes it more likely to occur.

Impact:
TMM cores and the system cannot process traffic. Traffic disrupted while tmm restarts.

Workaround:
Disable PVA/EPVA on all FastL4 profiles

Fix:
Fix the internal logic error.

934065-1 : The turboflex-low-latency and turboflex-dns are missing.

Component: TMOS

Symptoms:
The turboflex-low-latency and turboflex-dns profiles are no longer available in 15.1.x and 16.0.x software releases.

Conditions:
The turboflex-low-latency or turboflex-dns in use.

Impact:
Unable to configure turboflex-low-latency or turboflex-dns profiles after an upgrade to 15.1.x or 16.0.x software release.

Workaround:
None.

Fix:
The turboflex-low-latency and turboflex-dns profiles are restored.

933777-1 : Context use and syntax changes clarification

Component: Application Visibility and Reporting

Symptoms:
There are two context and syntax-related issues:

-- In v14.x, the context for tmsh analytics commands related to server side connections changed. For example, 'total-server-side-conns' became a simple 'server-side-conns'.

-- In v13.x and 14.x, the calculation method for 'max-tps' changed from cumulative to commutative.

Conditions:
This occurs in either of the following scenarios:
-- Using tmsh analytics commands related to max-tps in v13.x or later.
-- Using tmsh analytics commands related to server side connections in BIG-IP v14.x and later.

Impact:
Stats names do not reflect their actual values. The 'max-tps' value is no longer valid for client IP context. These changes might have varied impacts, depending on your configuration.

Workaround:
None

Fix:
-- Label names for tmsh analytics commands related to server side connections changed (for example: the tmsh display name changed from 'total-server-side-conns' to 'server-side-conns', with similar changes for the other server side connection stats).

-- The 'max-tps' formula changed to be commutative instead of cumulative, so it is no longer relevant in the 'client-ip' context.

Behavior Change:
-- Label names for tmsh analytics commands related to server side connections changed (for example: the tmsh display name changed from 'total-server-side-conns' to 'server-side-conns', with similar changes for the other server side connection stats).

-- The 'max-tps' formula changed to be commutative instead of cumulative, so it is no longer relevant in the 'client-ip' context.

933741-2 : BIG-IP FPS XSS vulnerability CVE-2021-22979

Solution Article: K63497634

933461-4 : BGP multi-path candidate selection does not work properly in all cases.

Component: TMOS

Symptoms:
ZebOS BGP might not properly clear the multi-path candidate flag when handling a BGP route.

Conditions:
An inbound route-map exists that modifies a route's path selection attribute.

Impact:
Incorrect path selection and/or a timer on a route getting refreshed every time the Routing Information Base (RIB) is scanned.

Workaround:
None.

933409-2 : Tomcat upgrade via Engineering Hotfix causes live-update files removal★

Component: TMOS

Symptoms:
After applying an Engineering Hotfix ISO that contains an updated tomcat package, live-update files are inadvertently removed and live update no longer works properly.

Conditions:
Occurs after installing an Engineering Hotfix that contains the tomcat package.

Impact:
Live-update functionality does not work properly.

Workaround:
Although there is no workaround, you can install an updated Engineering Hotfix that uses a fixed version of the live-install package.

Fix:
Fixed an issue with inadvertently removing live-update files while applying an Engineering Hotfix.

932937-2 : HTTP Explicit Proxy configurations can result in connections hanging until idle timeout.

Component: Local Traffic Manager

Symptoms:
After an HTTP return code of 400 Bad Request or 403 Forbidden, connection table entries may not be removed from the connection table until they reach the idle timeout threshold.

Conditions:
-- HTTP Explicit Proxy Configuration.
-- BIG-IP HTTP response contains a 400 Bad Request or 403 Forbidden status code.

Impact:
The hanging connection table entries can cause subsequent connections from the same source port to fail. Also, the subsequent connection attempts can cause the idle timer to be reset.

Workaround:
Use an iRule to prevent connections from hanging:

when HTTP_REJECT {
after 1
}

Fix:
HTTP Explicit Proxy configurations no longer results in connections hanging until idle timeout.

932825-2 : Delayed Gratuitous ARPs may cause traffic to go to the previous active BIG-IP device

Component: Local Traffic Manager

Symptoms:
When the standby system in a High Availability (HA) group becomes active, it sends out gratuitous ARPs to advertise its ownership of IP addresses and direct traffic to itself. In rare conditions, when becoming active, other processes may send out traffic before Gratuitous ARPs are generated.

Conditions:
-- HA configured
-- Protocols in use that generate frequent and fast signaling messages

Impact:
This has been observed as an issue for IPsec during failover, causing tunnel stability issues after failover. No other protocols are known to be affected by the issue.

Workaround:
None

Fix:
When the standby device in an HA pair becomes active, Gratuitous ARPs are prioritized over other traffic.

932737-2 : DNS & BADOS high-speed logger messages are mixed

Component: Anomaly Detection Services

Symptoms:
Both DNS and BADOS messages use the same family ID, and the reported messages are categorized together.

Conditions:
BADOS & DNS are run together and application is under attack (BADOS). At this point, BIG-IP will generate BADOS messages using an ID that conflicts with DNS messages.

Impact:
Reporting will be confusing.

932497-3 : Autoscale groups require multiple syncs of datasync-global-dg

Component: TMOS

Symptoms:
Datasync-global-dg is in 'sync pending' status and is not automatically synced as expected.

Conditions:
Browser Challenges update image is automatically downloaded.

Impact:
Peers are not synced.

Workaround:
Manually sync datasync-global-db group.

Fix:
Perform full sync for each change when having multiple live update changes in a row.

932485-3 : Incorrect sum(hits_count) value in aggregate tables

Component: Application Visibility and Reporting

Symptoms:
If the results gathered for sum(hits_count) are very large (e.g., 15000300000), the system does not report the correct values in the AVR tables.

Conditions:
-- Insert a very large amount of data (approximately 4.5 milliard or more) to one of AVR tables.
-- Review the value of the sum(hits_count) column.

Impact:
The system reports incorrect values in AVR tables when dealing with large numbers

Workaround:
None.

932437-2 : Loading SCF file does not restore files from tar file★

Component: TMOS

Symptoms:
Loading an SCF configuration file does not restore file objects from the SCF's associated tar file.

Restoring the SCF fails with an error similar to this if the running configuration does not already contain the file:

01070712:3: Failed: name (/Common/test-crt) Cache path (/config/filestore/files_d/Common_d/certificate_d/:Common:test-crt) does not exist and there is no copy in trash-bin to restore from.
Unexpected Error: Loading configuration process failed.

Conditions:
Restore an SCF archive that references file objects, e.g.:
-- SSL certificates
-- SSL keys
-- iFiles

Impact:
Restoring SCF does not restore contents of file objects.

Workaround:
None.

932233-2 : '@' no longer valid in SNMP community strings

Component: TMOS

Symptoms:
The '@' character is no longer valid in SNMP community strings.

Conditions:
Attempting to use the '@' character in SNMP community strings.

Impact:
Unable to use the '@' character in SNMP community strings. The system cannot process SNMP commands with community strings that contain the '@' character, and the commands fail.

Workaround:
Use a community string that does not contain the '@' character.

932065-2 : iControl REST vulnerability CVE-2021-22978

Solution Article: K87502622

932033 : Chunked response may have DATA frame with END_STREAM prematurely

Component: Local Traffic Manager

Symptoms:
When an HTTP/2 profile is configured on the client side, chunked responses are always sent unchunked. When a connection to a client is congested, BIG-IP systems may send the END_STREAM flag before transmitting a whole payload.

Conditions:
-- A virtual server with an HTTP/2 profile configured on the client side.
-- A server responds with a chunked response.

Impact:
A browser may not receive the whole payload, or it may not recognize that the payload has been delivered fully (partially prior to the DATA frame with END_STREAM flag, partially after the frame).

Workaround:
Configure an HTTP profile on the client side with a value of 'unchunk' on the response-chunking option.

Fix:
BIG-IP systems no longer send a DATA frame with END_STREAM flag prematurely when a connection to a client is congested.

931837-1 : NTP has predictable timestamps

Solution Article: K55376430

931513-3 : TMM vulnerability CVE-2021-22977

Solution Article: K14693346

930905-4 : Management route lost after reboot.

Component: TMOS

Symptoms:
Management route lost after reboot, leading to no access to BIG-IP systems via management address.

Conditions:
-- 2NIC BIG-IP Virtual Edition template deployed in GCP (see https://github.com/F5Networks/f5-google-gdm-templates/tree/v3.0.3/supported/standalone/2nic/existing-stack/byol).

-- The instance is rebooted.

Impact:
After rebooting, the default route via the management interface no longer exists in the routing table. BIG-IP administrators are unable to connect to BIG-IP Virtual Edition via the management address.

Workaround:
Use either of the following workarounds:

-- Delete the route completely and reinstall the route.

-- Restart mcpd:
bigstart restart mcpd

930741-2 : Truncated or incomplete upload of a BIG-IP image causes kernel lockup and reboot

Component: TMOS

Symptoms:
If there is a truncated BIG-IP software image in /shared/images, a kernel lockup and reboot could occur.

One way to have a truncated image in /shared/images is by using iControl/SOAP to upload the image. Using SOAP, the image is uploaded in chunks, so until the last chunk is uploaded, the image is not complete/is truncated.

Conditions:
-- Truncated BIG-IP image in /shared/images
-- Using SOAP to upload the image.

Impact:
Traffic disruption caused by the reboot.

Workaround:
If you are using SOAP to upload BIG-IP software images, upload them to /shared first and then move them to /shared/images.

930385-3 : SSL filter does not re-initialize when an OCSP object is modified

Component: Local Traffic Manager

Symptoms:
Create an OCSP object using DNS resolver ns1, associate the OCSP object to SSL profile and a virtual.

Then, modify the OCSP object to DNS resolver ns2.

After the modification, wait for cache-timeout and cache-error-timeout and then connect to virtual again. The nameserver contacted is still ns1.

Conditions:
An OCSP object is configured and modified.

Impact:
The wrong nameserver is used after modification to the OCSP object.

Fix:
After the fix, the correct nameserver will be contacted after the OCSP object is modified.

930005-2 : Recover previous QUIC cwnd value on spurious loss

Component: Local Traffic Manager

Symptoms:
If a QUIC packet is deemed lost, but an ACK for it is then received, the cwnd is halved despite there being no actual packet loss. Packet reordering can cause this situation to occur.

Conditions:
A QUIC packet is deemed lost, and an ACK for it is received before the ACK of its retransmission.

Impact:
Inefficient use of bandwidth in the presence of packet reordering.

Workaround:
None.

Fix:
QUIC congestion window is restored to its pre-recovery value on a spurious loss recovery.

Behavior Change:
QUIC congestion window is restored to its pre-recovery value on a spurious loss recovery.

929077-2 : Bot Defense allow list does not apply when using default Route Domain and XFF header

Component: Application Security Manager

Symptoms:
When configuring an IP address allow list in Bot Defense Profile, using a default Route Domain, and a request with an X-Forwarded-For header the request might not be added to the allow list.

Conditions:
-- Bot Defense Profile is attached to virtual server.
-- Bot Defense Profile has an IP address allow list configured.
-- Using default Route Domain.
-- Sending a request with X-Forwarded-For header.
-- Might require heavy traffic.

Impact:
Request from an IP address that is on the allow list is blocked.

Workaround:
Allow the IP address using an iRule.

Fix:
The system now sets the correct route domain, and IP addresses on the allow list are allowed.

929001-3 : ASM form handling improvements

Solution Article: K48321015

Component: Application Security Manager

Symptoms:
Under certain conditions, the ASM form handler may not enforce as expected.

Conditions:
- Brute force protection is configured

Impact:
Enforcement not triggered as expected.

Workaround:
N/A

Fix:
ASM now processes forms as expected.

928857-2 : Use of OCSP responder may leak X509 store instances

Component: Local Traffic Manager

Symptoms:
The use of OCSP responder may cause X509 certificate store instances to be leaked, eventually causing memory pressure.

Conditions:
OCSP responder configured.

Impact:
TMM ssl_compat memory usage grows over time, eventually causing memory pressure, and potentially a traffic outage due to TMM restart. Traffic disrupted while tmm restarts.

Workaround:
No workaround.

928805-2 : Use of OCSP responder may cause memory leakage

Component: Local Traffic Manager

Symptoms:
Use of OCSP responder may cause small amounts of SSL memory to be leaked, eventually leading to memory pressure.

Conditions:
OCSP responder configured.

Impact:
TMM SSL memory usage grows over time, eventually causing memory pressure, and potentially a traffic outage due to TMM restart. Traffic disrupted while tmm restarts.

Workaround:
No workaround.

928789-2 : Use of OCSP responder may leak SSL handshake instances

Component: Local Traffic Manager

Symptoms:
Use of OCSP responder may cause SSL handshake instances to be leaked eventually leading to memory pressure.

Conditions:
OCSP responder configured.

Impact:
TMM ssl_hs memory usage grows over time, eventually causing memory pressure, and potentially a traffic disruption due to TMM restart.

Workaround:
No workaround.

928717-3 : [ASM - AWS] - ASU fails to sync

Component: Application Security Manager

Symptoms:
Live Update configuration is not updated.

Conditions:
-- The BIG-IP device being removed from the device group is also the last commit originator. (You might encounter this on AWS as a result of auto-scale.)
-- A new device is added to the device group.
-- Initial sync is pushed to the new device.

Impact:
Automatic signature updates (ASU) fail to sync.

Workaround:
Make a spurious change to Live Update from another device in the group and sync it to the group, for example:

1. Set the 'Installation of Automatically Downloaded Updates' to Scheduled and save.
2. Then return the setting to its previous state, and save again.

928697-2 : Incorrect logging of proposal payloads from remote peer during IKE_SA_INIT

Component: TMOS

Symptoms:
When debug mode is enabled, racoon2 logs packet payloads during IKE negotiation. When multiple proposals are present in an IKE_SA_INIT packet, the logging of the proposal payloads is incorrect.

Conditions:
The initiator sends more than one proposal.

Impact:
Diagnosing connection issues is more difficult.

Workaround:
During debugging, ignore IKE_SA_INIT packet dump in the logs.

928685-2 : ASM Brute Force mitigation not triggered as expected

Solution Article: K49549213

Component: Application Security Manager

Symptoms:
Under certain conditions the Brute Force mitigation will not be triggered.

Conditions:
- ASM enabled
- Brute Force mitigation enabled

Impact:
Brute Force mitigation is not triggered as expected.

Workaround:
The following iRule will look for an issue with the authorization header and will raise an custom violation when this is happening:

when ASM_REQUEST_DONE 
{
if { [catch { HTTP::username } ] } { 
     log local0. "ERROR: bad username"; 
     ASM::raise bad_auth_header_custom_violation  
   }
}

Fix:
Brute Force mitigation is now triggered as expected.

928553-3 : LSN64 with hairpinning can lead to a tmm core in rare circumstances

Component: Carrier-Grade NAT

Symptoms:
LSN64 with hairpinning configured can lead to a tmm core in rare circumstances.

Conditions:
- LSN64 virtual server.
- Hairpinning enabled.
- FLOW_INIT iRule.
- Full proxy config.

Impact:
Tmm cores. Traffic disrupted while tmm restarts.

Workaround:
Disable full proxy config of hairpinning.

Fix:
Tmm does not crash anymore.

928321-1 : K19166530: XSS vulnerability CVE-2020-27719

Solution Article: K19166530

928037-2 : APM Hardening

Solution Article: K15310332

928029-2 : Running switchboot from one tenant in a chassis filled with other tenants/blades gives a message that it needs to reboot the chassis

Component: TMOS

Symptoms:
Wrong popup message for switchboot popup "This will restart the chassis. Continue?".

Conditions:
Run "switchboot" command

Impact:
A confusing popup message is displayed.

Workaround:
NA

Fix:
Updated the switchboot popup message "This will restart BIG-IP tenant. Continue?"

927941-5 : IPv6 static route BFD does not come up after OAMD restart

Component: TMOS

Symptoms:
The Bidirectional Forwarding Detection (BFD) session for an IPv6 static route is not shown in response to the command:
imish -e "show bfd session"

Conditions:
-- BFD is configured with static route IPv6.
-- Restart the oamd process.

Impact:
BFD session is not shown in 'show bfd session'.

Workaround:
Restart tmrouted:
bigstart restart tmrouted

Fix:
IPv6 static route BFD session now comes up after restarting the oamd process.

927901-4 : After BIG-IP reboot, vxnet interfaces come up as uninitialized

Component: TMOS

Symptoms:
1. After BIG-IP reboots, the vxnet interfaces come up as uninitialized.
2. The driver does not log any issues:
echo "device driver [client-specific driver info] mlxvf5" >> /config/tmm_init.tcl

Conditions:
Running BIG-IP Virtual Edition (VE) v15.1.0.4 software.

Impact:
Vxnet driver requires manual intervention after reboot.

Workaround:
Tmsh enable/disable interface brings it back up until next reboot.

927617-2 : 'Illegal Base64 value' violation is detected for cookies that have a valid base64 value

Component: Application Security Manager

Symptoms:
A valid request that should be passed to the backend server is blocked.

Conditions:
-- A cookie name is defined in Security :: Application Security : Headers : Cookies List :: New Cookie, with Base64 Decoding enabled.

-- The cookie header that contain the valid cookie value is encoded to base64.

Impact:
A request is blocked that should not be.

Workaround:
Disable 'Base64 Decoding' for the desired cookie.

Fix:
Requests with valid base64 encoding cookies are now correctly passed by the enforcer.

927033-2 : Installer fails to calculate disk size of destination volume★

Component: TMOS

Symptoms:
Installation fails with a 'Disk full (volume group)' error in var/log/liveinstall.log:

error: tm_install::Process::Process_full_install -- predicted size for BIGIP14125 is 12315728, current location size is 11120640, and vg has 0 remaining.

Conditions:
Platforms with software RAID that also have a symlink in /dev/md that looks like the following:

[root@bigip1] images # ls -l /dev/md/
total 8
-rw-r--r--. 1 root root 5 2020-07-09 16:12 autorebuild.pid
lrwxrwxrwx. 1 root root 8 2020-07-09 16:51 localhost:0 -> ../md127
-rw-------. 1 root root 66 2020-07-09 16:11 md-device-map

Impact:
Unable to successfully upgrade.

Workaround:
Create the expected symlink manually:

cd /dev/md
ln -s ../md127 _none_\:0

926997-1 : QUIC HANDSHAKE_DONE profile statistics are not reset

Component: Local Traffic Manager

Symptoms:
QUIC HANDSHAKE_DONE profile statistics are not set back to 0 when statistics are reset.

Conditions:
A QUIC virtual server receives or sends HANDSHAKE_DONE frames, and the profile statistics are later reset.

Impact:
QUIC HANDSHAKE_DONE profile statistics are not reset.

Workaround:
Restart tmm to reset all statistics:

Impact of Workaround: Traffic disrupted while tmm restarts.

bigstart restart tmm

Fix:
QUIC HANDSHAKE_DONE profile statistics are reset properly.

926929-3 : RFC Compliance Enforcement lacks configuration availability

Component: Local Traffic Manager

Symptoms:
Earlier versions contained fixes that enforce several RFC compliance items for HTTP request and response processing by BIG-IP systems. Enforcement for some of these items is unavoidable, but might cause issues for certain applications.

Conditions:
The configuration has a virtual server with an HTTP profile.

Impact:
Some applications that require certain constructions after a header name may not function.

Workaround:
None.

Fix:
A configuration item is introduced to manage any RFC compliance option when enforcement is turned on:

HTTP profile option enforcement.allow-ws-header-name; prior releases Tmm.HTTP.RFC.AllowWSHeaderName DB key (necessarily a global flag, rather than per-profile control).

926593-2 : GTM/DNS: big3d gateway_icmp probe for IPv6 incorrectly returns 'state: timeout'

Component: Global Traffic Manager (DNS)

Symptoms:
The GTM/DNS gateway_icmp monitor for IPv6 virtual servers sometimes returns 'state: timeout' even though big3d receives the packet successfully.

Conditions:
- GTM/DNS provisioned.
- IPv6 virtual server with gateway_icmp GTM/DNS monitor.

Impact:
IPv6 virtual servers are marked down unexpectedly.

Workaround:
Use a different gtm monitor type than gateway_icmp for IPv6 targets

925989 : Certain BIG-IP appliances with HSMs cannot upgrade to v15.1.0.4★

Component: Local Traffic Manager

Symptoms:
After upgrade to v15.1.0.4, config does not load. Logs show:

-- err mcpd[11863]: 01b50049:3: FipsUserMgr Error: Master key load failure.
-- err mcpd[11863]: 01070712:3: Caught configuration exception (0), FIPS 140 operations not available on this system.
-- err tmsh[14528]: 01420006:3: Loading configuration process failed.

Conditions:
-- Upgrading to v15.1.0.4.
-- Using the following platforms:
  + i5820-DF / i7820-DF
  + 5250v-F / 7200v-F
  + 10200v-F
  + 10350v-F

Impact:
Cannot upgrade to v15.1.0.4, and the system is offline.

Important: Although you cannot prevent this from happening (except by not upgrading to 15.1.0.4), you can boot back into the previous configuration to recover BIG-IP system operation.

Workaround:
None.

925573-6 : SIGSEGV: receiving a sessiondb callback response after the flow is aborted

Component: Access Policy Manager

Symptoms:
A SIGSEGV error occurs after a connection is ended. This is an intermittent issue that inconsistently recurs.

Conditions:
APM Per-Request is processing a flow that has already been reset (RST) by another filter, such as HTTP or HTTP/2.

Impact:
Connections might reset. You might experience a tmm crash. This is an intermittent issue. Traffic disrupted while tmm restarts.

Workaround:
None.

924961-2 : CVE-2019-20892: SNMP Vulnerability

Solution Article: K45212738

924945-3 : Fail to detach HTTP profile from virtual server

Component: Application Visibility and Reporting

Symptoms:
The virtual server might stay attached to the initial HTTP profile.

Conditions:
Attaching new HTTP profiles or just detaching an existing one.

Impact:
The virtual server stays attached to the former HTTP profile, meaning that the virtual server might be attached to a different HTTP profile than what the GUI displays. Configuration changes to the HTTP profile the GUI shows as attached are not reflected in the virtual server. For example, the new HTTP profile might enable XFF, but if the former attached profile does not enable it, the virtual server does not accept XFF.

Workaround:
Create new similar virtual server and attach it to the correct HTTP profile.

924929-2 : Logging improvements for VDI plugin

Component: Access Policy Manager

Symptoms:
If the Virtual Desktop Interface (VDI) plugin aborts, the names of the events are not logged in the APM log file.

Conditions:
- Virtual Desktop Interface (VDI) configured
- The plugin encounters a problem and aborts

Impact:
Event names are not displayed in the APM log.

Workaround:
None.

Fix:
Event names along with the exceptions are also seen in the APM log file.

924857-1 : Logout URL with parameters resets TCP connection

Component: Access Policy Manager

Symptoms:
TCP connection reset when 'Logout URI Include' configured.

Conditions:
-- Access Policy with a valid 'Logout URI Include' string, e.g.:
/logoff.html
-- Request to 'Logout URI Include' URI from user-agent that includes a query parameter string, e.g.:
/logoff.html?a=b

Impact:
TCP connection resets, reporting BIG-IP APM error messages.

'Logout URI Include' does not support custom query strings in logout URIs to include. For example, with a 'Logout URI Include' value of /logoff.html, if a user-agent sends a logout URI request in the form of /logoff.html?a=b, logout URI validation resets the connection and reports an error:
-- Access encountered error: ERR_ARG. File: ../modules/hudfilter/access/access.c, Function: access_check_uri_type.

Note: BIG-IP APM prohibits the configuration of 'Logout URI Include' from containing a query string on the BIG-IP system. For example, attempting to configure 'Logout URI Include' with a URI in the form of /logoff.html?a=b fails and displays error messages:
-- Configuration error: Configured URI (/logoff.html?a=b) is not allowed to contain query parameter.

Workaround:
None

Fix:
The system now ignores unsupported query parameters.

924521-2 : OneConnect does not work when WEBSSO is enabled/configured.

Component: Access Policy Manager

Symptoms:
OneConnect is a feature that reuses server-side connections. When WEBSSO is enabled, it always creates a new server-side connection, and does not reuse pooled connections.

Conditions:
Virtual server configured with both a WEBSSO and a OneConnect profile.

Impact:
Idle server-side connections that should be eligible for reuse by the virtual server are not used. This might lead to buildup of idle server-side connections, and may result in unexpected 'Inet port exhaustion' errors.

Workaround:
None.

Fix:
OneConnect now works when WEBSSO is enabled/configured, so that the system reuses the pooled server-side connections.

924493-2 : VMware EULA has been updated

Component: TMOS

Symptoms:
The End User License Agreement (EULA) presented in VMware is out of date.

Conditions:
The EULA is presented to the user when deploying an OVF template.

Impact:
The current EULA is version: DOC-0355-16 (as explained in K12902: End User License Agreement Change Notice :: https://support.f5.com/csp/article/K12902).

Although the OVA EULA for 16.0.0 shows: DOC-0355-12, the EULA presented during license activation is the EULA in force for this instance, so you can safely ignore the discrepancy; there is no functional impact.

Workaround:
None needed. The EULA presented during license activation is the EULA in force for this instance.

Fix:
The EULA presented in VMware was out of date and has been updated.

924429-2 : Some large UCS archives may fail to restore due to the system reporting incorrect free disk space values

Component: TMOS

Symptoms:
While restoring a UCS archive, you get an error similar to the following example:

/var: Not enough free space
535162880 bytes required
326418432 bytes available
/shared/my.ucs: Not enough free disk space to install!
Operation aborted.
/var/tmp/configsync.spec: Error installing package
Config install aborted.
Unexpected Error: UCS loading process failed.

As part of restoring UCS archives, some files (for example, the contents of the filestore) are temporarily copied to the /var/tmp directory.

The script that ensures enough free disk space is available for the UCS restore operation incorrectly reports the /var filesystem's free disk space for the /var/tmp directory.

This is incorrect, as /var/tmp is a symlink to /shared/tmp, and so the free disk space of the /shared filesystem should be used instead.

Conditions:
-- Restoring a UCS file.
-- The UCS file contains large items that are temporarily stored under the /var/tmp directory (for example, many EPSEC files, many large external data-groups, etc.).
-- The /var filesystem has limited free disk space.

Impact:
The UCS installation fails even if /var/tmp has sufficient disk space.

Workaround:
None.

Fix:
The UCS installation script now reports the correct free disk space for the /var/tmp directory, allowing UCS archive installations to complete.

924349-2 : DIAMETER MRF is not compliance with RFC 6733 for Host-ip-Address AVP over SCTP

Component: Service Provider

Symptoms:
Current Diameter CER/CEA messages does not advertise all HostIPAddresses.

Conditions:
-- Exchange Diameter messages CER/CEA between peers, configure a SNAT pool and an alternate address in the SCTP profile.
-- The CER from BIG-IP contains snatpool IP addresses
-- The CEA from BIG-IP contains alternate addresses

Impact:
Unable to see multiple HostIPAddress in CER/CEA

Fix:
Able to validate HostIpAddress as per RFC6733 on Diameter over SCTP.

924301-1 : Incorrect values in REST response for DNS/SIP

Component: Application Visibility and Reporting

Symptoms:
Some of the calculations are inaccurate/missing in the AVR publisher for DNS and SIP, and incorrect values are shown in the REST response.

Conditions:
-- Device vector detection and mitigation thresholds are set to 10.
-- A detection and mitigation threshold is reached

Impact:
An incorrect value is calculated in the REST response.

Fix:
Fixed an issue with incorrect calculation for DNS/SIP mitigation

923301-2 : ASM, v14.1.x, Automatically apply ASU update on all ASMs in device group

Component: Application Security Manager

Symptoms:
From 14.1.0.2 and after, for ASMs in a device group, only the active device would update and install the attack signature update (ASU) and the ASU would then be synchronized and installed on other peer ASMs within the device group during a config sync.

Conditions:
Automatic installation of ASU on manual sync setup.

Impact:
- Since the standby ASM does not download/install the ASU during scheduled update, on a manual sync setup this would cause a difference in signature between the Active and Standby devices until a config sync takes place.
- When a failover occurs, the newly active device does not have the latest signature.

Workaround:
Manually sync the device group.

Fix:
A new sys db has been added, 'liveupdate.allowautoinstallonsecondary'. When it is set to true, automatic ASU installation will take place on each of the devices in the device group.

Behavior Change:
A new sys db has been added, 'liveupdate.allowautoinstallonsecondary'. When it is set to true, automatic ASU installation will take place on each of the devices in the device group.

923125-2 : Huge amount of admd processes caused oom

Component: Anomaly Detection Services

Symptoms:
The top command shows that a large number of admd processes are running.

Conditions:
-- Configuration with Sync-Failover device groups and BADOS.
-- Some stressful (unknown) condition occurs.

Impact:
Memory is exhausted.

Workaround:
Restart admd:
bigstart restart admd

Fix:
This issue no longer occurs.

922785-2 : Live Update scheduled installation is not installing on set schedule

Component: Application Security Manager

Symptoms:
A scheduled live update does not occur at the scheduled time.

Conditions:
A scheduled installation is set for only a single day, between 00:00-00:14.

Impact:
Automated installation does not initiate

Workaround:
There are two options:
1. Install the update manually.
2. Set two consecutive days where the second day is the day with the schedule set between 00:00-00:14

922597-2 : BADOS default sensitivity of 50 creates false positive attack on some sites

Component: Anomaly Detection Services

Symptoms:
False DoS attack detected. Behavioral DoS (ASM) might block legitimate traffic.

Conditions:
This can occur for some requests that have high latency and low TPS.

Impact:
False DoS attack detected. Behavioral DoS (ASM) can block legitimate traffic.

Workaround:
Modify the default sensitivity value from 50 to 500:
tmsh modify sys db adm.health.sensitivity value 500

For some sites with server latency issues, you might also have to increase the health.sensitivity value; 1000 is a reasonable number.

The results is that the attack is declared later than for the default value, but it is declared and the site is protected.

Fix:
Default sensitivity value 500 now illuminates false positive DoS attacks declaration.

922297-2 : TMM does not start when using more than 11 interfaces with more than 11 vCPUs

Component: TMOS

Symptoms:
TMM may not start when using more than 11 network interfaces with more than 11 vCPUs configured.

You see the following log entries in /var/log/tmm:

-- notice ixlv(1.1)[0:5.0]: Waiting for tmm10 to reach state 1...

In the TMM log for that TMM, you can see that it is waiting for tmm0, e.g.:

-- notice ixlv(1.10)[0:6.0]: Waiting for tmm0 to reach state 2...

Conditions:
-- BIG-IP Virtual Edition (VE).
-- More than 11 interfaces configured.
-- More than 11 vCPUs configured.

Impact:
TMM does not start.

Workaround:
Configure fewer network interfaces or vCPUs.

Fix:
Fixed a TMM startup deadloop stuck issue (when there are more than 10 interfaces and tmms/vCPUs).

922261-2 : WebSocket server messages are logged even it is not configured

Component: Application Security Manager

Symptoms:
BIG-IP systems send unexpected WebSocket server messages to the remote logging server.

Conditions:
-- ASM provisioned.
-- ASM policy and WebSocket profile attached to a virtual server.
-- More than one remote logging profile is attached to a virtual server.
-- One of the remote loggers has response-logging=all.

Impact:
Remote logging server overloaded with unexpected WebSocket messages.

Workaround:
Set response-logging=illegal in all remote logging profiles.

Fix:
BIG-IP sends WebSocket server messages to a remote logger only when it is enabled in the logging profile.

921881-2 : Use of IPFIX log destination can result in increased CPU utilization

Component: Local Traffic Manager

Symptoms:
-- Increased baseline CPU.

- The memory_usage_stats table shows a continuous increase in mds_* rows.

Conditions:
Configure IPFIX log destination and make regular changes to the associated configuration.

Impact:
Increased baseline CPU may result in exhaustion of CPU resources.

Workaround:
Limiting changes to associated configuration can slow the effects of this issue.

921721-1 : FIPS 140-2 SP800-56Arev3 compliance

Component: Local Traffic Manager

Symptoms:
BIG-IP is not compliant with a NIST revision to the SP800-56A standard for cryptographic algorithms.

Conditions:
Using cryptographic algorithms covered by this revision in a FIPS 140-2 deployment.

Impact:
BIG-IP will comply with the older standard.

Workaround:
Updated cryptographic key assurances and pair-wise consistency checks according to the SP800-56Arev3 standard.

921677-2 : Deletion of bot-related ordered items via tmsh might cause errors when adding new items via GUI.

Component: Application Security Manager

Symptoms:
When deleting (via tmsh) bot-related ordered list items like bot white-lists, bot-microservices, and bot-microservices URLs, an error occurs when adding and saving new items via GUI:

Bot defense profile <profile full name> error: match-order should be unique.

Conditions:
1.Create three items with consecutive match-orders values via tmsh, for example: three bot allow list items, the first with match-order 1, the second with match-order 2, and the third with match-order 3.

2. Delete item with the value: match-order 2 (in tmsh), and save.

3. Switch to the GUI, add new allow list item, and save.

Impact:
The system reports an error, and the bot configuration cannot be saved via GUI. However, dragging between items (and then dragging back) overcomes this error.

Workaround:
Drag between two items, and then drag back.

Fix:
Deletion of bot-related ordered items via tmsh no longer causes errors when adding new items via GUI.

921625-2 : The certs extend function does not work for GTM/DNS sync group

Component: Global Traffic Manager (DNS)

Symptoms:
When GTM/DNS systems in the same sync group receive the error 'SSL routines:SSL3_READ_BYTES:tlsv1 alert unknown ca', these systems cannot automatically connect to BIG-IP devices with which that GTM/DNS device has not already exchanged a SSL cert.

As part of normal functionality, when one GTM/DNS tries to connect to a BIG-IP server and receives 'unknown ca' SSL error, if its peer GTM/DNS has already built a connection with that BIG-IP server, then the second GTM/DNS system should also be able to connect to that BIG-IP server automatically. But it cannot because of this issue.

The problem exists only when the GTM/DNS device has not exchanged a cert with the BIG-IP server object, and there are two or more certs in /config/httpd/conf/ssl.crt/server.crt on that GTM/DNS device.

You might see messages similar to the following:

-- iqmgmt_ssl_connect: SSL error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert unknown ca.
-- err gtmd[28112]: 011ae0fa:3: iqmgmt_ssl_connect: SSL error: error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert unknown ca (336151576).
-- notice gtmd[28112]: 011ae03d:5: Probe to 10.10.0.3: buffer = <direct><![CDATA[<clientcert><ip>10.10.0.10</ip><target_ip>10.10.0.6</target_ip><cert>....

Conditions:
-- /config/httpd/conf/ssl.crt/server.crt file with two or more certs on the requesting GTM/DNS device, which results in that file being larger than 4000 bytes.

-- Configuration is as follows:
   1. GTMDNS1 and GTMDNS2 are in a same GTM/DNS sync group.
   2. GTMDNS1 has a self-authorized CA cert.
   3. You add a BIG-IP server that is reachable but with which GTMDNS1 has not exchanged SSL certs.

Impact:
Certain GTM/DNS systems in the sync group cannot automatically connect to BIG-IP devices as expected. You must run additional bigip_add commands on those GTM/DNS systems in the GTM/DNS sync group to add the BIG-IP server.

Workaround:
Run bigip_add on each GTM/DNS server to add the configured BIG-IP servers.

921421-3 : iRule support to get/set UDP's Maximum Buffer Packets

Component: Local Traffic Manager

Symptoms:
UDP profiles have a setting to set the Maximum Buffer Packets for UDP connections. This value cannot be modified with an iRule.

Conditions:
-- UDP profile is used.
-- You need to dynamically change the max buffer packets setting in an iRule.

Impact:
Unable to dynamically change the max buffer packets setting in an iRule.

Workaround:
None

Fix:
You can now dynamically change the max buffer packets setting in an iRule. The setting is UDP::max_buf_pkts

Behavior Change:
A new iRule command has been added, UDP::max_buf_pkts. This allows you to dynamically override the maximum number of packets setting in the UDP profile.

921369 : Signature verification for logs fails if the log files are modified during log rotation

Component: TMOS

Symptoms:
Rotated log files that are modified immediately after log rotation and before signature generation can cause signature verification failure.

Conditions:
-- Log integrity feature is enabled.
-- A log rotation event occurs

Impact:
Signature verification may fail on rotated log files.

Fix:
Fixed an issue with signature verification failing on valid log files.

921365-1 : IKE-SA on standby deleted due to re-transmit failure when failing over from active to standby

Component: TMOS

Symptoms:
IKE-SAs are deleted on standby BIG-IP systems after a failover.

Conditions:
-- High availability (HA) environment
-- Dead-peer detection (DPD) / liveness checks are enabled
-- An HA failover occurs

This is a timing issue and can occur intermittently during a normal failover.

Impact:
Some of the IKE-SAs are missing on the standby device. When a failover happens, IPsec traffic will be dropped for those missing SAs.

Workaround:
Set IKE DPD interval time to ZERO (i.e., disable).

Fix:
When the BIG-IP system is in standby mode, the system no longer retries sending IKE/IPSEC control messages, which prevents this issue from occurring.

921361-2 : SSL client and SSL server profile names truncated in GUI

Component: TMOS

Symptoms:
Unable to see the full name of the SSL client and SSL server profiles when assigning them in the GUI.

Conditions:
In Local Traffic :: Virtual Server :: Properties, the fields for the 'Selected' and 'Available' lists are narrower than they were in previous versions.

Impact:
With longer SSL profile names, the full name is not visible. Even the default, provided profiles, such as crypto-server-default-clientssl and crypto-client-default-serverssl, are truncated.

Note: The fields remain at the limited width even when the browser window is maximized.

Workaround:
Use tmsh to see the full SSL client and SSL server name.

921337-2 : BIG-IP ASM WebSocket vulnerability CVE-2021-22976

Solution Article: K88230177

921181 : Wrong error message upon bad credential stuffing configuration

Component: BIG-IP Risk Engine

Symptoms:
When you try to configure credential stuffing and provide invalid parameters, you see a misleading error:

HTML Tag-like Content in the Request URL/Body

Conditions:
Configuration of bad ApplicationID, Access Token or wrong service type, generates a validation error, but the error message is confusing.

Impact:
A misleading error is displayed.

Workaround:
None.

Fix:
Wrong error message upon bad credential stuffing configuration has been corrected.

921065 : BIG-IP systems not responding to DPD requests from initiator after failover

Component: TMOS

Symptoms:
After failover, the active BIG-IP system fails to respond to DPD requests from some of its eNB neighbors, which results in deletion of IKE tunnel peer as well as the BIG-IP system.

Conditions:
-- The BIG-IP is configured with more than 300 IKE/IPsec tunnels.
-- The BIG-IP system fails over.

Impact:
Since BIG-IP systems do not respond to DPD requests, eNB deletes the IKE tunnel after a few retries.

Workaround:
None.

Fix:
Fixed an issue with the BIG-IP system not responding to DPD requests after failover.

920961-2 : Devices incorrectly report 'In Sync' after an incremental sync

Component: Application Security Manager

Symptoms:
The security policies assigned to a virtual server are different among the devices in a traffic-group.

Conditions:
-- ASM provisioned.
-- Manual Sync Active-Standby Failover Device Group with ASM sync enabled.
-- An L7 ASM security policy is manually changed on a virtual server (not using the ASM wizard).

Impact:
After incremental sync, devices report 'In Sync' but there is a configuration discrepancy in the security policy assigned to the virtual server.

Workaround:
Modify the underlying LTM policy to be 'legacy':
# tmsh modify ltm policy <LTM Policy Name> legacy

Fix:
An internal config parameter is now available to work around this issue. In order to use the workaround, you must enable a db variable.

To enable the workaround, run the following command from the CLI on every device in the device group:
------------------------------------
# /usr/share/ts/bin/add_del_internal add force_legacy_ltm_policy 1

Operation completed successfully. Don't forget to restart ASM to apply changes.
------------------------------------

NOTE: In this specific case, ASM restart is not required, despite the fact that a message says it is.

Behavior Change:
There is now an internal config parameter that enables a workaround for this issue. In order to use the workaround, you must enable a db variable.

To enable the workaround, run the following command from the CLI on every device in the device group:
------------------------------------
# /usr/share/ts/bin/add_del_internal add force_legacy_ltm_policy 1

Operation completed successfully. Don't forget to restart ASM to apply changes.
------------------------------------

NOTE: In this specific case, ASM restart is not required, despite the fact that a message says it is.

920361-2 : Standby device name sent in Traffic Statistics syslog/Splunk messages

Component: Advanced Firewall Manager

Symptoms:
'Traffic Statistics' syslog/Splunk messages are sent with the hostname of the standby device.

Conditions:
When a virtual server is configured with a security logging profile enabled for DoS Protection logging.

Impact:
'Traffic Statistics' syslog/Splunk messages show the wrong hostname. It should show the active device hostname.

Workaround:
None.

Fix:
Corrected Traffic Statistics syslog/Splunk messages to show the hostname of the active instead of the standby device in logging messages.

920301-1 : Unnecessarily high number of JavaScript Obfuscator instances when device is busy

Component: TMOS

Symptoms:
When the device has high CPU or I/O rate, it can cause the JavaScript Obfuscator to run multiple times simultaneously, causing even higher CPU usage.

Conditions:
-- ASM/DoS/FPS are provisioned.
-- BIG-IP device is experiencing a high CPU or I/O rate.

Impact:
High CPU Usage.

Workaround:
None.

Fix:
The system now avoids creating multiple JavaScript Obfuscator processes.

920197-3 : Brute force mitigation can stop mitigating without a notification

Component: Application Security Manager

Symptoms:
A brute force attack coming from an entity (such as an IP address, etc.) may be stopped prematurely.

Conditions:
-- Many brute force attacks are happening at once, coming from many sources.
-- Distributed attack is not detected (due to configuration).

Impact:
At some point, an entity might not be mitigated due to the sheer number of mitigated entities. When this occurs, there is no notification.

Workaround:
None.

919989-2 : TMM does not follow TCP best practices

Solution Article: K64571774

919841-3 : AVRD may crash while processing Bot Defense traffic

Solution Article: K45143221

919745-2 : CSV files downloaded from the Dashboard have the first row with all 'NaN

Component: TMOS

Symptoms:
In the Dashboard .csv file, all of the values in the first row are set to 'NaN'

Conditions:
This is encountered when loading the downloaded Dashboard .csv files with historical data from the GUI.

Impact:
The first row of the downloaded .csv from Dashboard shows all the values as 'NaN'.

Workaround:
None.

Fix:
Fixed an issue with 'NaN' being reported in the first line of the downloaded dashboard .csv files.

919553-2 : GTM/DNS monitors based on the TCP protocol may fail to mark a service up when the server's response spans multiple packets.

Component: Global Traffic Manager (DNS)

Symptoms:
GTM/DNS monitors based on the TCP protocol may fail to find the configured receive string in the server's response, causing the monitored service to be incorrectly marked down.

Conditions:
This issue occurs when the server's response spans multiple packets (for example, when the response is particularly large or includes dynamically generated content delivered in chunks).

Impact:
A service is incorrectly marked down. This can cause the BIG-IP GTM/DNS to return a suboptimal answer or no answer at all to DNS queries.

Workaround:
This issue can be worked around by ensuring your server returns a response to the BIG-IP GTM/DNS's monitor that fits in one packet.

Fix:
GTM/DNS monitors based on the TCP protocol no longer fail when the server's response spans multiple packets.

919381-1 : Extend AFM subscriber aware policy rule feature to support multiple subscriber groups

Component: Advanced Firewall Manager

Symptoms:
Currently AFM does not have support to match rules against multiple subscriber policies

Conditions:
-- AFM provisioned
-- You wish to match rules against multiple subscriber policies

Impact:
AFM rules cannot be matched against multiple subscriber policies

Workaround:
None

Fix:
Enhancing the AFM rules matching against multiple subscriber policies

919301-3 : GTP::ie count does not work with -message option

Component: Service Provider

Symptoms:
The 'GTP::ie count' iRule command does not work with the -message option. The command fails with an error:

wrong # args: should be "-type <ie-path>"

Conditions:
Issue the 'GTP::ie count' command with -message command, for example:

GTP::ie count -message $m -type apn

Impact:
iRules fails and it could cause connection abort.

Workaround:
Swap order of argument by moving -message to the end, for example:

GTP::ie count -type apn -message $m

There is a warning message due to iRules validation, but the command works in runtime.

Fix:
'GTP::ie' count is now working with -message option.

919001-2 : Live Update: Update Available notification is shown twice in rare conditions

Component: Application Security Manager

Symptoms:
When entering Live Update page, sometimes Update Available notification is shown twice.

Conditions:
This can be encountered on the first load of the Live Update page.

Impact:
Notification is shown twice.

Workaround:
None.

Fix:
Notification is shown only once in all cases.

918933-2 : The BIG-IP ASM system may not properly perform signature checks on cookies

Solution Article: K88162221

Component: Application Security Manager

Symptoms:
For more information, please see:
https://support.f5.com/csp/article/K88162221

Conditions:
For more information, please see:
https://support.f5.com/csp/article/K88162221

Impact:
For more information, please see:
https://support.f5.com/csp/article/K88162221

Workaround:
For more information, please see:
https://support.f5.com/csp/article/K88162221

Fix:
For more information, please see:
https://support.f5.com/csp/article/K88162221

918597-5 : Under certain conditions, deleting a topology record can result in a crash.

Component: Global Traffic Manager (DNS)

Symptoms:
During a topology load balancing decision, TMM can crash.

Conditions:
-- Topology records are deleted.
-- A load balancing decision using topology load balancing occurs.

Impact:
On very rare occasions, TMM can crash. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
Topology record changes are now done in a way that prevents the possibility of TMM crashing when making load balancing decisions in which the record is used.

918209-3 : GUI Network Map icons color scheme is not section 508 compliant

Component: TMOS

Symptoms:
Network Map color scheme is not compliant with Section 508 of the Rehabilitation Act (section 508). There is no clear difference between a green/active node and the blue/square items. With the new system colors and flat shapes, the icons are nearly identical. Other than shape (circle vs. square), the new colors appear identical; the blue and green are nearly appearing as one color.

Conditions:
Accessing Network Map from GUI via Local Traffic :: Network Map.

Impact:
There is no clear color difference between a green/active node icon and the blue/square icon.

Workaround:
None.

Fix:
Modified the color codes. Now the Network Map icons color scheme is section 508 compliant.

918169-1 : The GTM/DNS HTTPS monitor may fail to mark a service up when the SSL session undergoes an unclean shutdown.

Component: Global Traffic Manager (DNS)

Symptoms:
The GTM/DNS HTTPS monitor may fail to find the configured receive string in a HTTP response, causing the monitored service to be incorrectly marked down.

Conditions:
This issue occurs when all of the following conditions are true:

-- The server being monitored performs an unclean shutdown of the SSL session (the underlying TCP connection is closed without first issuing a close notify alert at the SSL level).

-- The server's HTTP response does not terminate with a newline.

Impact:
A service is incorrectly marked down. This can cause the BIG-IP GTM/DNS to return a suboptimal answer or no answer at all to DNS queries.

Workaround:
This issue can be worked around by performing any one of the following actions:

-- Ensure the server issues a close notify alert before it closes the underlying TCP connection.

-- Ensure the server's HTTP response ends with a newline.

Fix:
The GTM/DNS HTTPS monitor no longer fails when the SSL peer performs an unclean shutdown.

918097-3 : Cookies set in the URI on Safari

Component: Application Security Manager

Symptoms:
When Bot Defense performs a 307 Redirect, the cookie is set on the URL if Bot Defense detects the Safari browser.

Conditions:
-- Bot Defense profile is attached to virtual server.
-- 'Browser Verification' set to 'Verify Before Access' or 'Verify After Access'.
-- 'Cross Domain Requests' set to 'Validate Upon Request'.
-- Surfing on Safari browser to a related domain.

Impact:
A cookie is set on the URL.

Workaround:
None.

Fix:
A new db variable has been added, botdefense.safari_redirect_no_cookie_mode, to allow you to control whether the cookie is added to the URL.

Behavior Change:
BIG-IP systems now have an option to set the cookie using a set-cookie header in the response and not save it as part of the URL.

This is done by a new BigDB variable:
tmsh modify botdefense.safari_redirect_no_cookie_mode value disable

Default value is the original behavior (enable), which sets the cookie in the URl.

NOTE: If the site is using iFrames, changing this BigDB variable might cause the cookie to be ignored and therefore for requests to be blocked.

918081-1 : Application Security Administrator role cannot create parent policy in the GUI

Component: Application Security Manager

Symptoms:
In the GUI, for the Application Security Administrator role, when you create a new ASM policy, the Policy Type is greyed out and the parent policy cannot be created

Conditions:
-- Create user account with the Application Security Administrator user role.
-- Use that account to logon to the GUI and try to create/edit the parent policy.

Impact:
The following actions are restricted to accounts with roles Application Security Administrator:
-- Create/Edit parent policy.
-- Edit Inheritance Settings for parent policy.
-- Clone Policy, selecting policy type is disabled.

Workaround:
There are two possible workarounds:
-- Have the Administrator or Resource Administrator create a parent policy instead of the Application Security Administrator.
-- Create parent policy using tmsh or REST call.

Fix:
The Application Security Administrator role can now create the parent policy when required.

917509-3 : BIG-IP ASM vulnerability CVE-2020-27718

Solution Article: K58102101

917469-2 : TMM may crash while processing FPS traffic

Solution Article: K53821711

917005-5 : ISC BIND Vulnerability: CVE-2020-8619

Solution Article: K19807532

916969-3 : Support of Microsoft Identity 2.0 platform

Component: Access Policy Manager

Symptoms:
BIG-IP does not support Template for Microsoft Identity Platform 2.0.

Conditions:
This is encountered if you want to use Template for Microsoft Identity Platform 2.0 as an identity provider.

Impact:
Unable to configure Microsoft Identity Platform 2.0 on BIG-IP.

Workaround:
OAuth provider has a custom template which provides the ability to configure and discover using new endpoints.

916821-2 : iControl REST vulnerability CVE-2021-22974

Solution Article: K68652018

916781-1 : Validation error while attaching DoS profile to GTP virtual

Component: Service Provider

Symptoms:
Validation error is observed while attaching DoS security profile to GPRS Tunneling Protocol (GTP) virtual server.

Conditions:
Attach DoS security profile to GTP virtual server.

Impact:
Validation error. Cannot attach DoS profile to GTP virtual server.

Workaround:
None.

Fix:
Create GTP virtual profile and attach DoS security profile to it. No validation error should be reported.

916753-2 : RESOLV::lookup returns empty string when querying against a local virtual server, and results in possible tmm core

Component: Global Traffic Manager (DNS)

Symptoms:
-- RESOLV::lookup returns an empty string.
-- TMM might crash.

Conditions:
An iRule runs RESOLV::lookup targeting the query toward a local virtual server. For instance:

RESOLV::lookup @/Common/my_dns_virtual www.example.com

Impact:
RESOLV::lookup does not return the expected result;
tmm might crash. Traffic disrupted while tmm restarts.

Workaround:
In the RESOLV::lookup command, replace the name of the virtual server with its IP address, or the IP address of an external DNS server.

For instance, if /Common/my_dns_virtual has destination 192.0.2.53:53:

instead of this: RESOLV::lookup @/Common/my_dns_virtual
use this: RESOLV::lookup @192.0.2.53

916589-2 : QUIC drops 0RTT packets if CID length changes

Component: Local Traffic Manager

Symptoms:
QUIC sometimes rejects valid 0RTT packets.

Conditions:
-- QUIC enabled.
-- The Connection ID length assigned by the client for the server's CID does not match what the server assigned.

Impact:
QUIC drops 0RTT packets. Lost 0RTT packets increase latency.

Workaround:
None.

Fix:
Fixed an issue with 0RTT packets when using QUIC.

915957-1 : The wocplugin may get into a restart loop when AAM is provisioned

Component: Local Traffic Manager

Symptoms:
When AAM is provisioned the wocplugin resource allocation may fail, which could result in a restart loop of the plugin. This renders the AAM module nonfunctional.

Conditions:
Application Acceleration Manager (AAM) is provisioned

Impact:
AAM is not functional

Workaround:
None

Fix:
The wocplugin is now correctly provisioned and runs without restarts.

915825-2 : Configuration error caused by Drafts folder in a deleted custom partition while upgrading.

Component: TMOS

Symptoms:
A configuration error occurs during upgrade due to custom partition-associated Draft folder, which exists in configuration file after deleting a custom partition.

Configuration error: Can't associate folder (/User/Drafts) folder does not exist.

Conditions:
This occurs in the following scenario:

1. Create Partition.
2. Create Policy under that partition.
3. Delete Policy.
4. Delete Partition.
5. Upgrade.

Impact:
Upgrade fails when a Drafts folder exists under the custom partition folder, if the custom partition is deleted.

Workaround:
Manually remove the stale folders in the configuration file, or use a script to remove them.

915713-2 : Support QUIC and HTTP3 draft-29

Component: Local Traffic Manager

Symptoms:
The BIG-IP system supports QUIC and HTTP/3 draft-27 and draft-28. IETF has released draft-29.

Conditions:
Browser requests draft-29.

Impact:
Connection downgrades to an older version, or fails if the browser cannot downgrade.

Workaround:
None.

Fix:
The BIG-IP system now supports draft-29 and draft-28, and has removed draft-27 support.

915689-1 : HTTP/2 dynamic header table may fail to identify indexed headers on the response side.

Component: Local Traffic Manager

Symptoms:
Some HTTP/2 response headers may be added to the dynamic header table even if this header is already stored in the table. Instead of subsequent responses using the correct dynamic header table index, these headers may be continually seen as being incrementally indexed.

Conditions:
-- HTTP/2 clientside profile.
-- Concurrent HTTP/2 responses contain headers.

Impact:
Select HTTP/2 response headers may fail to use the dynamic header table index. These headers are incrementally indexed on subsequent responses instead of using the existing table index.

Workaround:
None.

Fix:
HTTP/2 response headers now properly use the dynamic header table index when possible.

915605-6 : Image install fails if iRulesLX is provisioned and /usr mounted read-write★

Solution Article: K56251674

Component: Local Traffic Manager

Symptoms:
If iRulesLX is provisioned the /usr mount points are mounted as read-write. This causes the installation of an image to fail.

tmsh show software status will report the status for the target volume as one of the following:

-- Could not access configuration source.
-- Unable to get hosting system product info.

Conditions:
-- iRulesLX is provisioned.
-- The /usr mount points are mounted as read-write.
-- Attempt an installation or upgrade.

Impact:
Unable to upgrade or more generally install an image on a new or existing volume.

Workaround:
Re-mount /usr as read-only:

mount -o remount,ro /usr

915497-2 : New Traffic Class Page shows multiple question marks.

Component: TMOS

Symptoms:
When you navigate to the traffic class creation page by clicking Create button in the Traffic Class list page, Chinese characters are displayed with multiple question marks.

Conditions:
This is encountered when creating a new Traffic Class.

Impact:
Multi-byte characters are displayed incorrectly.

Workaround:
None.

Fix:
Fixed an issue with rendering multi-byte characters on the Traffic Class screen.

915489-2 : LTM Virtual Server Health is not affected by iRule Requests dropped

Component: Anomaly Detection Services

Symptoms:
Virtual Server Health should not take into account deliberate drop requests.

Conditions:
-- DoS profile is attached to Virtual Server.
-- iRule that drops requests on some condition is also attached to the virtual server.

Impact:
Server Health reflects it is overloading status more precisely.

Workaround:
Do not use iRules to drop requests when Behavioral DoS is configured.

Fix:
Virtual Server Health is no longer affected while dropping requests using iRules.

915305-5 : Point-to-point tunnel flows do not refresh connection entries; traffic dropped/discarded

Component: TMOS

Symptoms:
Dynamic routing changes do not cause point-to-point tunnel flows to refresh their connection entries causing tunneled traffic to be dropped/discarded.

Conditions:
Path to a remote tunnel endpoint is provided by a dynamic routing.

Impact:
Tunneled traffic might be dropped/discarded by the BIG-IP system.

Workaround:
Use static routing to provide a path to remote tunnel endpoint.

915281-2 : Do not rearm TCP Keep Alive timer under certain conditions

Component: Local Traffic Manager

Symptoms:
Increased CPU usage due to zombie TCP flows rearming TCP Keep Alive timer continuously and unnecessarily.

Conditions:
-- A large number of zombie flows exists.
-- TCP Keep Alive timer is rearmed aggressively for zombie flows with very small idle_timeout (0) value.
-- TCP Keep alive timer keeps expiring and is rearmed continuously.

Impact:
Continuous rearming results in consuming CPU resources unnecessarily.

Workaround:
None.

Fix:
Rearming of TCP Keep Alive timer is improved.

914761-3 : Crontab backup to save UCS ends with Unexpected Error: UCS saving process failed.

Component: TMOS

Symptoms:
Using crontab to automatically backup UCS file by scheduling cronjobs fails due to SELinux permissions. The failure produces the following error:

Unexpected Error: UCS saving process failed.

Conditions:
This is encountered when 'tmsh save sys ucs' is executed through a cronjob.

Impact:
UCS file is not successfully saved and backup fails.

Workaround:
None.

914681-2 : Value of tmm.quic.log.level can differ between TMSH and GUI

Component: Local Traffic Manager

Symptoms:
The value of the QUIC logging level is erroneously shown as 'Error' in the GUI.

Conditions:
Set tmm.quic.log.level to 'Info' or 'Critical' in TMSH.

Impact:
Misleading log level displayed in the GUI.

Workaround:
Use TMSH to set and view values for tmm.quic.log.level.

Fix:
GUI values for tmm.quic.log.level are now displayed properly.

914649-3 : Support USB redirection through VVC (VMware virtual channel) with BlastX

Component: Access Policy Manager

Symptoms:
USB is unavailable after opening VMware View Desktop.

Conditions:
1. Secure Tunnel disabled on VCS
2. Launch view virtual desktop via native view client from an APM webtop or from the View client

Impact:
USB is unavailable after opening VMware View Desktop

Workaround:
None.

Fix:
USB is now available after opening VMware View Desktop

914293-3 : TMM SIGSEGV and crash

Component: Anomaly Detection Services

Symptoms:
Tmm crash when using iRule to reject connections when Behavioral DoS is enabled.

Conditions:
This can occur due to an interaction between a Behavioral DoS policy and an iRule designed to potentially drop some of the connections.

Impact:
With heavy traffic, the tmm process might crash. Traffic disrupted while tmm restarts.

Workaround:
Do not use iRules to reject connections that are bound to a virtual server with a Behavioral DoS policy attached.

Fix:
Fixed a tmm crash related to iRules and Behavioral DoS policies.

914245-2 : Reboot after tmsh load sys config changes sys FPGA firmware-config value

Component: TMOS

Symptoms:
As a part of FPGA firmware update, "tmsh load sys config" fails.

Chmand reports errors:

chmand[19052]: FPGA firmware mismatch - auto update, No Interruption!
chmand[19052]: 012a0006:6: FPGA HSB firmware uploading now...use caution!
Reloading fw_update_post configuration (via systemctl): [FAILED]

Conditions:
Running either of the following commands:

tmsh load sys config
/etc/init.d/fw_update_post reload

Impact:
Firmware update fails.

Workaround:
Use this procedure:

1. Mount /usr:
mount -o rw,remount /usr

2. Add the following line to the '/usr/lib/systemd/system/fw_update_post.service' file:
ExecReload=/etc/init.d/fw_update_post reload

3. Reload systemctl:
systemctl daemon-reload

4. Reload the file:
/etc/init.d/fw_update_post reload

Fix:
Added the reload option in fw_update_post service file.

914081-1 : Engineering Hotfixes missing bug titles

Component: TMOS

Symptoms:
BIG-IP Engineering Hotfixes may not show the summary titles for fixed bugs (as appear for the affected bugs published via Bug Tracker).

-- The 'tmsh show sys version' command displays the bug numbers for fixes included in Engineering Hotfixes.
-- If a given bug has been published via Bug Tracker, the summary title of the bug is expected to be displayed as well.
-- Running BIG-IP Engineering Hotfixes built on or after March 18, 2019.

Conditions:
For affected BIG-IP Engineering Hotfixes, titles are not displayed for any bugs fixed in the Engineering Hotfix.

Impact:
Cannot see the summaries of the bugs fixed by running the 'tmsh show sys version' command.

Workaround:
For bugs that are published via Bug Tracker, you can query for the affected bug in Bug Tracker (https://support.f5.com/csp/bug-tracker).

Note: Not all bugs fixed in BIG-IP Engineering Hotfixes are published to Bug Tracker.

For information on such bugs, consult F5 support, or the original Service Request submitted to F5 in which the affected Engineering Hotfix was requested.

Fix:
BIG-IP Engineering Hotfixes now include the summary titles for fixed bugs that have been published via Bug Tracker.

913849-1 : Syslog-ng periodically logs nothing for 20 seconds

Component: TMOS

Symptoms:
Once per minute, syslog-ng logs nothing for 20 seconds.

Conditions:
-- A remote syslog server is specified by hostname, forcing syslog-ng to resolve it.
-- the DNS resolution times out (for example, if the DNS server is unreachable)

Impact:
When using DNS names to specify remote syslog destinations and DNS is unreachable, syslog-ng re-attempts to resolve the name every 60 seconds. This resolution has a 20 seconds timeout, and blocks the syslog process from writing logs to disk during that time.

Note that the logs are buffered, not lost, and will still be written to disk (with the correct timestamps) once the DNS query times out.

Workaround:
None.

Fix:
F5 patched syslog-ng to use a lower 1-second, 0-retries timeout back in 13.0.0, but this patch was made ineffective by the upgrade to centos 7 in 14.1.0. This fixes the patch so that it works again.

913829-4 : i15000, i15800, i5000, i7000, i10000, i11000 and B4450 blades may lose efficiency when source ports form an arithmetic sequence

Component: TMOS

Symptoms:
Traffic imbalance between tmm threads. You might see the traffic imbalance by running the following command:
tmsh show sys tmm-traffic

Conditions:
Source ports used to connect to i15000, i15800, i5000, i7000, i10000, i11000 and B4450 blades form an arithmetic sequence.

For example, some client devices always use even source port numbers for ephemeral connections they initiate. This means the 'stride' of the ports selected is '2'. Because a sorted list of the ports yields a list like 2, 4, 6, 8... 32002, 32004. It is 'striding' over the odd ports; thus, a port stride of 2.

Impact:
Traffic imbalance may result in tmm threads on different CPU cores having imbalanced workloads. While this can sometimes impact on performance, an overloaded tmm thread can usually redistribute load to less loaded threads in a way that does not impact performance. However the loads on the CPU cores will appear imbalanced still.

Workaround:
Where possible, configure devices to draw from the largest possible pool of source ports when connecting via a BIG-IP system.

Behavior Change:
This release introduces a new variable to mitigate this issue:
dagv2.pu.table.size.multiplier.

You must set the variable to 2 or 3 on the host, and then restart tmm on all host blades and then all guests to mitigate the issue. dag2.pu.table.size.multiplier.

913761-2 : Security - Options section in navigation menu is visible for only Administrator users

Component: Application Security Manager

Symptoms:
The Security - Options section in the left navigation menu is visible for only for user accounts configured with the Administrator role.

Conditions:
You logged in as a user configured with a role other than Administrator.

Impact:
No direct access to many settings that are available only for user account configured with the Administrator role.

Workaround:
Direct links to the pages work for those with the appropriate roles.

Fix:
Security - Options section is available for all user roles when at least one of the following is enabled:
-- ASM
-- DoS
-- FPS
-- AFM

913757-1 : Error viewing security policy settings for virtual server with FTP Protocol Security

Component: Application Security Manager

Symptoms:
The system reports an error message when trying to navigate to 'Security :: Policies' under virtual server properties:

An error has occurred while trying to process your request.

Conditions:
-- An FTP or SMTP profile with protocol security enabled is attached to a virtual server.
-- Attempt to navigate to 'Security :: Policies'.

Impact:
-- No policies appear. You cannot perform any operations on the 'Security :: Policies' screen.
-- The following error message appears instead:

An error has occurred while trying to process your request.

Workaround:
As long as an FTP or SMTP profile with protocol security enabled is defined under virtual server properties (in another words, it is attached to a virtual server), this issue recurs. There are no true workarounds, but you can avoid the issue by using any of the following:

-- Use another profile, such as HTTP.
-- Set the FTP/SMTP profile under the virtual server settings to None.
-- Remove the profile via the GUI or the CLI (e.g., you can remove the profile from the virtual server in tmsh using this command:

tmsh modify ltm virtual /Common/test-vs { profiles delete { ftp_security } }

Fix:
You can now attach FTP or SMTP profile with protocol security enabled and navigate to 'Security :: Policies' without error.

913729-5 : Support for DNSSEC Lookaside Validation (DLV) has been removed.

Component: Global Traffic Manager (DNS)

Symptoms:
Following the deprecation of DNSSEC lookaside validation (DLV) by the Internet Engineering Task Force (IETF), support for this feature has been removed from the product.

Conditions:
Attempting to use DLV.

Impact:
Cannot use DLV.

Workaround:
None. DLV is no longer supported.

Fix:
The BIG-IP DNS validating resolver no longer supports DNSSEC lookaside validation (DLV). If you roll forward a configuration that contains this feature, the system removes it from the configuration and prints a log message.

Behavior Change:
The BIG-IP DNS validating resolver no longer supports DNSSEC lookaside validation (DLV).

913453-5 : URL Categorization: wr_urldbd cores while processing urlcat-query

Component: Traffic Classification Engine

Symptoms:
The webroot daemon (wr_urldbd) cores.

Conditions:
This can occur while passing traffic when webroot is enabled.

Impact:
The wr_urldbd daemon cores. URL Categorization functionality may not work as expected.

Workaround:
None.

Fix:
Fixed a core with wr_urldb.

913433-3 : On blade failure, some trunked egress traffic is dropped.

Component: TMOS

Symptoms:
When a blade fails, other blades may try to forward traffic using trunked interfaces on the down blade.

Conditions:
-- A multi-blade chassis.
-- Interfaces are trunked.
-- A blade is pulled or powered off.

Impact:
Some traffic is dropped until the failed blade is detected by clusterd (10 seconds by default.)

Workaround:
None.

913413-3 : 'GTP::header extension count' iRule command returns 0

Component: Service Provider

Symptoms:
The 'GTP::header extension count' iRule command always returns 0 (zero).

Conditions:
This is encountered when using 'GTP::header extension count' in an iRule.

Impact:
The command returns false information.

Workaround:
None

Fix:
'GTP::header extension count' command now returns number of header extension correctly.

913373-2 : No connection error after failover with MRF, and no connection mirroring

Component: Service Provider

Symptoms:
-- Unable to establish MRF connection after failover.
-- Error reports 'no connection'.

Conditions:
- MRF configured.
- Using iRule for routing.
-- Failover occurs.

Impact:
Unable to establish new connection until existing sessions time out. No message is reported explaining the circumstances.

Workaround:
Any of the following:
-- Enable connection mirroring on the virtual server.
-- Disable session mirroring.

913249-2 : Restore missing UDP statistics

Component: Local Traffic Manager

Symptoms:
The following UDP statistics are missing:
-- bufdropdgram
-- maxrate_conns
-- maxrate_cur_conns
-- sendbuf_cur_bytes
-- queue_dropped_bytes

Conditions:
Viewing UDP statistics.

Impact:
Unable to view these UDP statistics.

Workaround:
None.

Fix:
The following UDP statistics are now restored:
-- bufdropdgram
-- maxrate_conns
-- maxrate_cur_conns
-- sendbuf_cur_bytes
-- queue_dropped_bytes

913137-1 : No learning suggestion on ASM policies enabled via LTM policy

Component: Application Security Manager

Symptoms:
ASM policy has the option 'Learn only from non-bot traffic' enabled, but the Policy Builder detects that the client is a bot, and therefore does not issue learning suggestions for the traffic.

Conditions:
-- ASM policy is enabled via LTM policy.
-- ASM policy configured to learn only from non-bot traffic.

This applies to complex policies, and in some configurations may happen also when a simple policy is enabled via LTM policy.

Impact:
No learning suggestions.

Workaround:
Disable the option 'Learn only from non-bot traffic' on the ASM policy.

Fix:
Policy builder now classifies non-bot traffic and applies learning suggestions.

913085-1 : Avrd core when avrd process is stopped or restarted

Component: Application Visibility and Reporting

Symptoms:
When the avrd process is stopped or restarted, it fails with core before the exit. A core file with the name starting with SENDER_HTTPS (for example, SENDER_HTTPS.bld0.0.9.core.gz) can be found in /shared/cores/ directory.

Conditions:
A BIG-IP system is registered on BIG-IQ and has established an HTTPS connection with BIG-IQ for sending stats data.

Impact:
Avrd cores while exiting. There is no impact on BIG-IP system functionality.

Workaround:
None.

Fix:
Avrd no longer cores when avrd process is stopped or restarted.

912969-2 : iAppsLX REST vulnerability CVE-2020-27727

Solution Article: K50343630

912945-2 : A virtual server with multiple client SSL profiles, the profile with CN or SAN of the cert matching the SNI is not selected if cert is ECDSA-signed

Component: Local Traffic Manager

Symptoms:
In a virtual configured with multiple client SSL profiles, the profile with ECDSA-signed cert is not selected even though its CN/SAN matching the SNI extension of ClientHello.

Conditions:
-- A virtual server with multiple client SSL profiles.
-- The SNI of,,lientHello does not match the 'server name' of any profile.
-- The cert in the profile is ECDSA-signed and its CN/SAN matches SNI extension of ClientHello.
-- That profile in is not selected.

Impact:
The incorrect client SSL profile is selected.

Workaround:
Configure the 'Server Name' option in the client SSL profile.

Fix:
Fixed an issue with client SSL profile selection.

912425-3 : Modification of In-TMM monitors may result in a crash

Component: Local Traffic Manager

Symptoms:
Modification of In-TMM monitors may result in a crash. This can happen on both standalone or HA.

Conditions:
- Modifying https In-TMM monitors as follows:
   - detach monitor from pool
   - delete monitor and server SSL profile
   - create server SSL profile
   - create monitor with same name, attach server SSL profile
   - Attach the monitor to pool

Impact:
In-TMM monitors crash. traffic is disrupted while TMM restarts.

Workaround:
Disable In-TMM monitors.

Fix:
This issue now fixed.

912289-1 : Cannot roll back after upgrading on certain platforms★

Component: Local Traffic Manager

Symptoms:
On certain platforms, after upgrade to particular software versions, you will not be able to boot back into an earlier software version. Contact F5 Support for the reversion process if this is required.

- BIG-IP v12.1.6 or later in the v12.x branch of code
- BIG-IP v13.1.4 or later in the v13.x branch of code
- BIG-IP v14.1.4 or later in the v14.x branch of code
- BIG-IP v15.1.1 or later in the v15.x branch of code
- BIG-IP v16.0.0 or later

Conditions:
-- Using the following platforms:
  + i5820-DF / i7820-DF
  + 5250v-F / 7200v-F
  + 10200v-F
  + 10350v-F

-- Upgrade the software to one of the following software versions:

  + BIG-IP v12.1.6 or later in the v12.x branch of code
  + BIG-IP v13.1.4 or later in the v13.x branch of code
  + BIG-IP v14.1.4 or later in the v14.x branch of code
  + BIG-IP v15.1.1 or later in the v15.x branch of code
  + BIG-IP v16.0.0 or later

-- Attempt to roll back to a previous version.

Impact:
Cannot boot into a previous version. Contact F5 Support for the reversion process if this is required.

Workaround:
None.

Fix:
Contact F5 Support for the reversion process if this is required.

Behavior Change:
On certain platforms, after upgrade to particular software versions, you will not be able to boot back into an earlier software version. Contact F5 Support for the reversion process if this is required.

The particular platforms are:
  + i5820-DF / i7820-DF
  + 5250v-F / 7200v-F
  + 10200v-F
  + 10350v-F

The particular software versions are:
  + BIG-IP v12.1.6 or later in the v12.x branch of code
  + BIG-IP v13.1.4 or later in the v13.x branch of code
  + BIG-IP v14.1.4 or later in the v14.x branch of code
  + BIG-IP v15.1.1 or later in the v15.x branch of code
  + BIG-IP v16.0.0 or later

912221-1 : CVE-2020-12662 & CVE-2020-12663

Solution Article: K37661551

912089-2 : Some roles are missing necessary permission to perform Live Update

Component: Application Security Manager

Symptoms:
Certain roles, such as Resource Administrator and Application Security Operations Administrator, do not have sufficient permission levels to perform Live Update.

Conditions:
-- User with Resource Administrator or Application Security Operations Administrator role assigned.
-- Attempt to perform Live Update.

Impact:
Users with Resource Administrator and Application Security Operations Administrator role cannot perform Live Update.

Workaround:
None.

Fix:
The following roles can now perform live-update:
- Administrator
- Web Application Security Administrator
- Resource Administrator
- Application Security Operations Administrator

912001-3 : TMM cores on secondary blades of the Chassis system.

Component: Global Traffic Manager (DNS)

Symptoms:
When using DNS Cache on chassis systems with a forward zone pointing at a self IP for communication with local BIND, the following assert triggers:

tmm_panic (... "../net/loop.c:572: %sIDX set on listener%s") at ../lib/stdio.c:1307

Conditions:
-- Chassis system is used.
-- Secondary TMMs core dump.
-- Primary works as expected.

Impact:
TMMs on secondary blades core dump. Traffic disrupted while tmm restarts.

Workaround:
1) Create another virtual server with a DNS profile to use configured to use the local bind server.
2) Set the forward zones to point to that virtual server instead of the self IP as name servers.

911809-2 : TMM might crash when sending out oversize packets.

Component: TMOS

Symptoms:
TMM crashes with an assert; Drop assertion similar to the following:
notice panic: ../dev/ndal/ndal.c:758: Assertion "pkt length cannot be greater than MAX_PKT_LEN" failed.

Conditions:
-- Xnet driver is used in BIG-IP Virtual Edition (VE).
-- TMM tries to send oversize packets.

Impact:
TMM crashes. Traffic disrupted while tmm restarts.

Workaround:
None.

911761-2 : F5 TMUI XSS vulnerability CVE-2020-5948

Solution Article: K42696541

911729-2 : Redundant learning suggestion to set a Maximum Length when parameter is already at that value

Component: Application Security Manager

Symptoms:
Policy Builder is issuing a learning suggestion to set a specific maximum length for a parameter when that parameter already has that exact maximum length already configured.

Conditions:
-- Response learning is turned on
-- Response parameter length is less than, but close to, the currently configured maximum length limit.

Impact:
Redundant learning suggestion is issued.

Workaround:
You can either:
-- Ignore the learning suggestion (Click the Ignore button).
-- Turn off Learn from response.

Fix:
Learning suggestion is no longer issued with already configured maximum parameter length value.

911141-3 : GTP v1 APN is not decoded/encoded properly

Component: Service Provider

Symptoms:
GTP v1 APN element was decoded/encoded as octetstring and Only GTP v2 APN element is decoded/encoded as DNS encoding.

Conditions:
- GTP version 1.
- APN element.

Impact:
iRules become more complex when dealing with GTP v1 APN element, as it may need to convert between octetstring and dotted style domain name value after decoding or before encoding the data.

Workaround:
Use iRules to convert between octetstring and dotted style domain name values.

Fix:
GTP version 1 APN information element is now decoded/encoded as DNS encoding.

Behavior Change:
GTP v1 apn element is now decoded/encoded using DNS-like encoding. Previously, it was decoded/encoded as octetstring.

911041-3 : Suspending iRule FLOW_INIT on a virtual-to-virtual flow leads to a crash

Component: Local Traffic Manager

Symptoms:
An iRule executing on the FLOW_INIT event can suspend. If it does so while connecting to a virtual-to-virtual flow, it can cause a TCP crash, which results in a tmm restart.

Conditions:
An iRule executing on the FLOW_INIT event suspends while connecting to a virtual-to-virtual flow.

Impact:
Tmm crashes. Traffic disrupted while tmm restarts.

Workaround:
Do not include any iRules that suspend processing in FLOW_INIT.

Fix:
Suspending the iRule FLOW_INIT on a virtual-to-virtual flow no longer leads to a crash.

910653-5 : iRule parking in clientside/serverside command may cause tmm restart

Component: Local Traffic Manager

Symptoms:
If an iRule utilizing the clientside or serverside command causes parking to occur while in the clientside/serverside command (table or after commands, for example), the connection is aborted while parked, and a subsequent iRule event attempts to run (CLIENT_CLOSED, for example), tmm may restart.

Conditions:
-- iRule using clientside or serverside command.
-- Use of commands that may park while in the clientside/serverside command.
-- Flow is aborted while iRule is parked.
-- iRule also has CLIENT_CLOSED or SERVER_CLOSED event handler.

For more information on the conditions that trigger iRule parking, see K12962: Some iRules commands temporarily suspend iRules processing, available at https://support.f5.com/csp/article/K12962.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
You can use either of the following workarounds:

-- Rework iRules to avoid use of clientside/serverside command.
-- Eliminate parking within the clientside/serverside commands.

Fix:
iRule parking in clientside/serverside command no longer causes tmm to restart.

910633-1 : Continuous 'neurond restart' message on console

Component: Performance

Symptoms:
Neurond continuous restart after some TurboFlex configuration changes.

Conditions:
TurboFlex configuration modifications change underlying firmware without automatic reboot triggered.

Impact:
Features that utilize Neuron are not available.

Workaround:
Reboot the system.

910521-2 : Support QUIC and HTTP draft-28

Component: Local Traffic Manager

Symptoms:
The BIG-IP system supports QUIC and HTTP/3 draft-25 and draft-27. IETF has released draft-28.

Conditions:
Browser requests draft-28.

Impact:
Connection downgrades to an older version, or fails if the browser cannot downgrade.

Workaround:
None.

Fix:
The BIG-IP system now supports draft-28 and draft-27, and has removed draft-25 support.

910417-2 : TMM core may be seen when reattaching a vector to a DoS profile

Component: Advanced Firewall Manager

Symptoms:
TMM core resulting in potential loss of service.

Conditions:
Attaching and deleting the vector to a DoS profile multiple times while the traffic is ongoing.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
The system now validates the tracker when deleting to ensure delete of the same tracker that was created, so there is no error.

910253-2 : BD error on HTTP response after upgrade★

Component: Application Security Manager

Symptoms:
After upgrade, some requests can cause BD errors on response:

BEM|ERR |May 19 17:49:55.800|0983|response_header_accumulator.c:0200|Error: CookieMgrBuildCookie failed. ans 1 job 2957561040

IO_PLUGIN|ERR |May 19 17:49:55.800|0983|io_plugin.c:3320|TMEVT_RESPONSE: Cannot build a ts cookie.

Conditions:
-- Upgrading BIG-IP systems to v15.0.0 or later from versions earlier than v15.0.0.
-- ASM policy is configured on a virtual server.

Impact:
For some requests, the response can arrive truncated or not arrive at all.

Workaround:
Add an iRule that deletes ASM cookies:

when HTTP_REQUEST {
  set cookies [HTTP::cookie names]
  foreach aCookie $cookies {
    if {$aCookie matches_regex {^TS(?:[0-9a-fA-F]{6,8})(?:$|_[0-9]+$)}} {
      HTTP::cookie remove $aCookie
    }
  }
}

Note: Performing this workaround affects cookie-related violations (they may need to be disabled to use this workaround), session, and login protection.

910201-3 : OSPF - SPF/IA calculation scheduling might get stuck infinitely

Component: TMOS

Symptoms:
After SPF/IA calculation gets suspended, it might enter a state where it never fires again.

Conditions:
SPF/IA calculation gets suspended;

This occurs for various reasons; BIG-IP end users have no influence on it occurring.

Impact:
OSPF routes are visible in the OSPF database, but not installed in the routing table.

Workaround:
Restart the routing daemons:
# bigstart restart tmrouted

Running this command allows you to recover from this situation, but does not prevent the event from reoccurring.

If due to a topology, SPF/IA calculation suspension occurs again after a restart, this workaround essentially has no effect.

910177 : Poor HTTP/3 throughput

Component: Local Traffic Manager

Symptoms:
HTTP/3 throughput is poor.

Conditions:
Virtual Server configured with an HTTP/3 profile.

Impact:
Performance might be severely degraded.

Workaround:
There is no alternative other than not using the HTTP/3 profile.

Fix:
Erroneously enabled debug logs are now turned off, so performance is improved.

910097-2 : Changing per-request policy while tmm is under traffic load may drop heartbeats

Component: Access Policy Manager

Symptoms:
Cluster failover, tmm restart, and tmm killed due to missed heartbeats. tmm crash

Conditions:
TMM is under load due to heavy traffic while MCP attempts to configure per-request policy. This can be caused by a modification to the policy or one of its agents, or by a restart of the TMM.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
When making changes to per-request policies, use a scheduled maintenance window so that impact to traffic is minimized.

910017-2 : Security hardening for the TMUI Interface page

Solution Article: K21540525

909837-1 : TMM may consume excessive resources when AFM is provisioned

Solution Article: K05204103

909673 : TMM crashes when VLAN SYN cookie feature is used on iSeries i2x00 and i4x00 platforms

Component: TMOS

Symptoms:
TMM crashes when VLAN SYN cookie feature is used.

Conditions:
-- Configuring for VLAN SYN cookie use.
-- Running on iSeries i2800/i2600 and i4800/i4600 platforms.

Impact:
Tmm crashes and traffic processing stops. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
VLAN SYN cookie processing now functions as expected.

909237-6 : CVE-2020-8617: BIND Vulnerability

Solution Article: K05544642

909233-6 : DNS Hardening

Solution Article: K97810133

909161-3 : A core file is generated upon avrd process restart or stop

Component: Application Visibility and Reporting

Symptoms:
Sometime when avrd process is stopped or restarted, a core is generated.

Conditions:
Avrd process is stopped or restarted.

Impact:
Avrd creates a core file but there is no other negative impact to the system.

Workaround:
None

908873-1 : Incorrect MRHTTP proxy handling of passthrough mode in certain scenarios may lead to tmm core

Component: Local Traffic Manager

Symptoms:
TMM crashes.

Conditions:
-- Virtual server has HTTP and HTTP Router profiles attached.
-- Certain scenarios where the proxy goes into passthrough mode.

This was encountered during internal testing of a certain iRule configurations.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

908673-5 : TMM may crash while processing DNS traffic

Solution Article: K43850230

908621-2 : Incorrect proxy handling of passthrough mode in certain scenarios may lead to tmm core

Component: Local Traffic Manager

Symptoms:
TMM crashes.

Conditions:
-- Virtual server has HTTP and HTTP Router profiles attached to it.
-- Certain scenarios where the proxy goes into passthrough mode.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
The system now correctly manages proxy handling of passthrough mode in specific scenarios, so the tmm crash no longer occurs.

908601-2 : System restarts repeatedly after using the 'diskinit' utility with the '--style=volumes' option

Component: TMOS

Symptoms:
When the BIG-IP system boots, mcpd continually restarts.

Conditions:
This may occur after you issue the 'diskinit' command with the '--style=volumes' option in the MOS (Maintenance Operating System) shell, install BIG-IP into the new volume, then boot into the new installation of the BIG-IP system.

Impact:
The BIG-IP system is unable to complete the boot process and become active.

Workaround:
In the MOS shell, do not issue the 'diskinit' command with the '--style=volumes' option.

Instead, on BIG-IP v14.1.2.1 and later, you may use the 'image2disk' utility with the '-format' option to recreate the desired volume.

You also can achieve the same result by following the shell guidance. To begin, type 'start<enter>'.

If the system is already in the defective state, use this shell command, and then reboot:

touch /.tmos.platform.init

The problem should be resolved.

Fix:
Running 'diskinit' from MOS with the '--style=volumes' option no longer causes continuous mcpd restarts.

908517-3 : LDAP authenticating failures seen because of 'Too many open file handles at client (nslcd)'

Component: TMOS

Symptoms:
LDAP authentication fails with an error message:

err nslcd[2867]: accept() failed: Too many open files

Conditions:
This problem occurs when user-template is used instead of Bind DN.

Impact:
You cannot logon to the system using LDAP authentication.

Workaround:
None.

Fix:
LDAP authentication now succeeds when user-template is used.

908065-2 : Logrotation for /var/log/avr blocked by files with .1 suffix

Component: Application Visibility and Reporting

Symptoms:
AVR logrotate reports errors in /var/log/avr:

error: error creating output file /var/log/avr/avrd.log.1: File exists
/var/log/avr/avrd.log will remain unchanged
/var/log/avr/avrd.log.1 will remain unchanged

Conditions:
Files ending with .1 exist in the log directory.

Impact:
Logrotate does not work. This might fill the disk with logs over time.

Workaround:
Remove or rename all of the .1 log files.

Fix:
Fixed an issue with logrotate failing when files ending with .1 exist in the log directory.

908021-1 : Management and VLAN MAC addresses are identical

Component: TMOS

Symptoms:
The 'tmsh show sys mac-address' command indicates the management interface is using the same MAC address as a VLAN.

Conditions:
This can occur on chassis based systems and on VCMP guests. The MAC address pool does not reserve specific MAC addresses for the management interfaces and so pool entries may be reused for VLANs.

Impact:
The management MAC address is the same as the VLAN MAC address, resulting in issues relating to the inability to differentiate traffic to the management port or to traffic ports.

Workaround:
None.

Fix:
The issue has been fixed for hardware platforms. That is, MAC addresses in the MAC address pool have been reserved for the management port. Due to the small MAC pool size for a few platforms (see K14513: MAC address assignment for interfaces, trunks, and VLANs :: https://support.f5.com/csp/article/K14513#vlans), entries cannot be reserved for VCMP guest management interfaces.

907765-1 : BIG-IP system does not respond to ARP requests if it has a route to the source IP address

Component: Local Traffic Manager

Symptoms:
If the BIG-IP system receives an ARP request from a source IP address for which it has a route configured, the BIG-IP system does not give an ARP reply.

Conditions:
-- BIG-IP system receives an ARP who-is request for one of its self ip addresses.
-- The source IP address is in a different network, and the BIG-IP system has an L3 route configured for it.

Impact:
BIG-IP does not send an ARP reply.

Workaround:
None.

Fix:
A db variable has been added called 'arp.verifyreturnroute' that can disable the TMM process's checking for a valid return route for ARP requests. It defaults to 'enable', which is the normal BIG-IP behavior. It can be set to 'disable' to disable the dropping of the request if a return route exists.

Behavior Change:
A db variable has been added called 'arp.verifyreturnroute' that can disable the TMM process's checking for a valid return route for ARP requests. It defaults to 'enable', which is the normal BIG-IP behavior. It can be set to 'disable' to disable the dropping of the request if a return route exists.

907549-1 : Memory leak in BWC::Measure

Component: TMOS

Symptoms:
Memory leak in BWC calculator.

Conditions:
When the HSL log publisher is attached to the BWC::Measure instance in the Bandwidth policy.

Impact:
A memory leak occurs.

Workaround:
None.

Fix:
Memory is not leaked.

907337-2 : BD crash on specific scenario

Component: Application Security Manager

Symptoms:
BD crashes.

Conditions:
A specific scenario that results in memory corruption.

Impact:
Failover, traffic disturbance. Traffic disrupted while BD restarts.

Workaround:
None.

Fix:
This BD crash no longer occurs.

907245-1 : AFM UI Hardening

Solution Article: K94255403

907201-2 : TMM may crash when processing IPSec traffic

Solution Article: K66782293

906889-4 : Incorrect totals for New Flows under Security :: Debug :: Flow Inspector :: Get Flows.

Component: TMOS

Symptoms:
Incorrect totals for New Flows under Security :: Debug :: Flow Inspector :: Get Flows.

Conditions:
Viewing New Flows under Security :: Debug :: Flow Inspector :: Get Flows.

Impact:
Calculation mistake in the GUI: shows 8 times the actual values, for example:

Packets In 2 shows as 016 in the GUI
Packets Out 0 shows as 8 in the GUI

Workaround:
View statistics in tmsh.

906885-1 : Spelling mistake on AFM GUI Flow Inspector screen

Component: Advanced Firewall Manager

Symptoms:
On the AFM GUI Flow Inspector screen, there is a spelling mistake 'Additinal Info'. It should read 'Additional Info'.

Conditions:
You can locate the spelling error by following these steps:
1. Navigate to Security :: Debug :: Flow Inspector :: Get Flows (should be blank).
2. Select New Flows and then Get Flows.
3. Select the flow (i.e., click anywhere on the result except the hyperlink).

Impact:
There is a spelling mistake on the word 'Additional'. There is no functional impact to the system; this is a cosmetic issue only.

Workaround:
None.

906377-2 : iRulesLX hardening

Solution Article: K61643620

905905-1 : TMUI CSRF vulnerability CVE-2020-5904

Solution Article: K31301245

905557-1 : Logging up/down transition of DNS/GTM pool resource via HSL can trigger TMM failure

Component: Global Traffic Manager (DNS)

Symptoms:
A TMM daemon logs a SIGSEGV error, halts, and then be restarted.

Conditions:
-- A BIG-IP system configured to perform DNS/GTM Global Server Load Balancing.
-- High Speed Logging (HSL) is configured.
-- Multiple HSL destinations are configured.
-- The enabled HSL settings include 'replication'.
-- At least one HSL destination is up.
-- At least one HSL destination is down.
-- A pool resource changes state from up to down.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Configure HSL with only a single log destination.

905125-2 : Security hardening for APM Webtop

Solution Article: K30343902

904937-2 : Excessive resource consumption in zxfrd

Solution Article: K25595031

904845-2 : VMware guest OS customization works only partially in a dual stack environment.

Component: TMOS

Symptoms:
The result of guest OS customization depends on the DHCP state on the management (mgmt) interface and the applied customization profile (i.e., IPv4 only, IPv4 and IPv6, or IPv6 with IPv4 prompt).

By default, DHCP is enabled on the management interface.

During configuration, you can customize only one IPv4 or one IPv6 address in a dual stack environment.

Conditions:
Applying a customization profile to VMware VM in a dual stack environment.

Impact:
You can only partially customize the mgmt interface IP profiles for VMware VMs in a dual stack environment.

Workaround:
Configure the mgmt interface addresses using the config script.

Fix:
VMware customization works only partially in a dual stack environment. To avoid misconfiguration, set the desired mgmt interface addresses using the config script.

904785-1 : Remotely authenticated users may experience difficulty logging in over the serial console

Component: TMOS

Symptoms:
-- When a remotely authenticated user attempts login over the serial console, the username and password are accepted, but the session closes immediately thereafter.
-- Login over SSH is successful for the same user

Conditions:
-- Remote authentication (e.g., RADIUS, TACACS, LDAP) and role mapping configured on the BIG-IP system.
-- Attempted login over the serial console for a remotely authenticated user who has been assigned a role.

Impact:
Remotely authenticated users cannot log in over the serial console.

Workaround:
Using either of the following workaround:

-- Log in over SSH instead

-- If acceptable (taking into account security considerations), enable terminal access for all remote users regardless of assigned role, using 'tmsh modify auth remote-user remote-console-access tmsh' or within the GUI.

904705-2 : Cannot clone Azure marketplace instances.

Component: TMOS

Symptoms:
Cannot clone Azure marketplace instances because cloned instances do not properly retrieve publisher and product code from the metadata service.

Conditions:
Applies to any Azure marketplace instance.

Impact:
Cannot clone Azure marketplace instances.

Workaround:
None.

Fix:
Updated the version of the API used to get data from the metadata service. Cloned instances now properly retrieve the publisher and product code from the metadata service.

904593-1 : Configuration overwritten when using Cloud Auto Scaling template and ASM Automatic Live Update enabled

Component: Application Security Manager

Symptoms:
When a Cloud Auto Scaling deployment is set up using F5's Auto Scale Template, and ASM Live Update is configured with Automatic Download enabled, the configuration may be overwritten during a scale out event when a new host joins the sync cluster. This is caused by a config sync from the new device to the primary device, before the primary has a chance to sync the configuration to the new device, causing the configuration in the primary device to be overwritten.

Conditions:
-- Using F5's Auto Scaling template.
-- Auto Scale script is configured with --block-sync (which is the default).
-- ASM Live Update is configured with Automatic Download enabled.
-- A scale out event occurs.

Impact:
Configuration of all devices in the Auto Scale group is overwritten.

Workaround:
Disable ASM Live Update Automatic Download.

This can be done by disabling the liveupdate.autodownload DB variable using the onboard.js script, and adding '-d liveupdate.autodownload:disable'.

For example:
/usr/bin/f5-rest-node /config/cloud/aws/node_modules/@f5devcentral/f5-cloud-libs/scripts/onboard.js --log-level silly --signal ONBOARD_DONE -o /var/log/cloud/aws/onboard.log --host localhost --port 8443 -d tm.tcpudptxchecksum:software-only -d liveupdate.autodownload:disable --ping

-d tm.tcpudptxchecksum:software-only -d liveupdate.autodownload:disable

904373-3 : MRF GenericMessage: Implement limit to message queues size

Component: Service Provider

Symptoms:
The GenericMessage filter does not have a configurable limit to the number of messages that can be received.

Conditions:
If a message is waiting for an asynchronous iRule operation during a GENERICMESSAGE_INGRESS or GENERICMESSAGE_EGRESS iRule event, new messages are placed in either the ingress or egress queue. As the number of messages increase, more memory is required.

Impact:
If too many messages are queued, the system may exceed an internal count which could lead to a core.

Workaround:
None.

Fix:
The existing max_pending_messages attribute of the message router profile is used to limit the size of the queues.

904165-1 : BIG-IP APM vulnerability CVE-2020-27716

Solution Article: K51574311

904053-2 : Unable to set ASM Main Cookie/Domain Cookie hashing to Never

Component: Application Security Manager

Symptoms:
Disabling ASM Main Cookie/Domain Cookie hashing in a Policy's Learning and Blocking Setting with 'Never (wildcard only)' does not stop the ASM Main Cookie from continuing to hash server-provided cookies.

Conditions:
-- ASM enabled.
-- Learning mode enabled for Policy.
-- Learn New Cookies set to 'Never (wildcard only)' instead of default 'Selective'.

Impact:
A sufficient number of ASM Main Cookies and/or a sufficiently large number of cookies for each ASM Main cookie to hash can result in the HTTP header becoming prohibitively large, causing traffic to be refused by the server.

Workaround:
Disable Learning mode for the Policy disables Cookie hashing.

Note: This affects all learning, not just Cookie hashing.

Fix:
Cookie hashing can now be disabled at the policy level in the Cookie subsection of an ASM Policy's Learning and Blocking Settings by setting Learn New Cookies to "Never (wildcard only)".

903905-2 : Default configuration of security mechanism causes memory leak in TMM

Component: Access Policy Manager

Symptoms:
Over time, memory is allocated by the TMM processes for use as 'xdata' buffers, yet this memory is never de-allocated; it is leaked and becomes unusable. Eventually a disruption of service occurs.

Conditions:
-- The BIG-IP system has been running for 8 weeks or longer without a system restart.

-- The BIG-IP system's internal risk-policy subsystem (used by the security feature modules) has not been configured to communicate with an external risk-policy server.

-- In a vCMP configuration, the BIG-IP 'host' instance is always susceptible, since no security features can be configured in its context.

-- A BIG-IQ system running any 8.x release prior to 8.1.0.1 may also be susceptible.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
Default configuration of security mechanism no longer causes memory leak in TMM.

903581-1 : The pkcs11d process cannot recover under certain error condition

Component: Local Traffic Manager

Symptoms:
When the connection between the BIG-IP system and HSM (SafeNet) is interrupted, pkcs11d is unable to recover in some case.

Conditions:
Connection between the BIG-IP system and the HSM device is interrupted.

Impact:
SSL handshake failure.

Workaround:
Restart the pkcs11d process using the following command:
restart /sys service pkcs11d

Fix:
Allow pkcs11d to re-initialize on error.

903573 : AD group cache query performance

Component: Access Policy Manager

Symptoms:
Active Directory queries are slow.

Conditions:
-- Active Directory (AD) authentication used
-- There are lots of AD caches in the environment, and users are in deeply nested groups.

Impact:
Active Directory query time can be excessive.

Fix:
Improved AD cache optimization.

903561-3 : Autodosd returns small bad destination detection value when the actual traffic is high

Component: Advanced Firewall Manager

Symptoms:
Bad destination detection threshold cannot accurately reflect the actual traffic pattern.

Conditions:
-- Enable bad destination and fully automatic mode.
-- Actual traffic is high.

Impact:
A small bad destination detection value is returned.

Workaround:
None.

Fix:
Fixed the threshold update algorithm.

903357-2 : Bot defense Profile list is loads too slow when there are 750 or more Virtual servers

Component: Application Security Manager

Symptoms:
Security :: Bot Defense : Bot Defense Profiles page loading takes a long time when there are profiles configured with hundreds of virtual servers. For example: a configuration with 750 virtual servers takes about 40 seconds to load the page. Configuration with 1300 virtual servers takes more than 70 seconds.

Conditions:
At least one Bot profile attached to hundreds of virtual servers. For 750 and more virtual servers attached the slow loading is significant.

Impact:
Bot Defense list page loading time can take more than 30 seconds.

Workaround:
None.

902485-3 : Incorrect pool member concurrent connection value

Component: Application Visibility and Reporting

Symptoms:
In AVR pool-traffic report, 'server-concurrent-conns' reports a larger value than 'server-max-concurrent-conns'.

Conditions:
This is encountered when viewing the pool-traffic report.

Impact:
Incorrect stats reported in the pool-traffic report table

Workaround:
In /etc/avr/monpd/monp_tmstat_pool_traffic_measures.cfg, change the formula of server_concurrent_connections:

From this:
formula=round(sum(server_concurrent_conns),2)

Change it to this:
formula=round(sum(server_concurrent_conns)/count(distinct time_stamp),2)

Fix:
Changed the calculation formula of 'server-concurrent-conns' so it reports the correct statistics.

902417-2 : Configuration error caused by Drafts folder in a deleted custom partition★

Component: TMOS

Symptoms:
Error during config load due to custom partition associated Draft folder exists after deleting partition.

01070734:3: Configuration error: Can't associate folder (/User/Drafts) folder does not exist
Unexpected Error: Loading configuration process failed.

Conditions:
Create draft policy under custom partition

Impact:
Impacts the software upgrade.

Workaround:
Remove the Draft folder config from bigip_base.conf or use command "tmsh delete sys folder /User/Drafts" followed by "tmsh save sys config" after removing partition.

902401-5 : OSPFd SIGSEGV core when 'ospf clear' is done on remote device

Component: TMOS

Symptoms:
The ospfd process generates a core.

Conditions:
-- IA routes.
-- OSPF is in FULL/DR state.

Impact:
An OSPF daemon generates a core, potentially losing routing information and OSPF dynamic routes for a moment while the ospfd daemon restarts.

Workaround:
None.

Fix:
OSPF no longer cores when running 'clear ip ospf' on remote.

902141-1 : TMM may crash while processing APM data

Solution Article: K94563369

901929-2 : GARPs not sent on virtual server creation

Component: Local Traffic Manager

Symptoms:
When a virtual server is created, GARPs are not sent out.

Conditions:
-- Creating a new virtual server.

Impact:
Traffic could be impacted if other systems have the virtual server address already in their ARP caches.

Workaround:
After creating the virtual server, disable and re-enable the ARP setting on the corresponding virtual address.

Fix:
GARPs are now sent when a virtual server is created.

901061-2 : Safari browser might be blocked when using Bot Defense profile and related domains.

Component: Application Security Manager

Symptoms:
As a fix to ID879777 (https://cdn.f5.com/product/bugtracker/ID879777.html), when navigating to a related domain using Safari, requests might be blocked.

Conditions:
- Using Bot Defense profile, with "Cross Domain Requests" mode "Validate Upon Request"
- BIG-IP version containing fix of ID879777 (16.0 and higher or EngHF)
- Surfing the site using Safari browser.

Impact:
Some requests might be blocked.

Workaround:
None.

Fix:
Set the cookie so all requests in the target domain will contain it.

901041-3 : CEC update using incorrect method of determining number of blades in VIPRION chassis★

Component: Traffic Classification Engine

Symptoms:
There is an issue with the script used for the Traffic Intelligence (CEC (Classification Engine Core)) Hitless Upgrade that misses installing on some blades during install/deploy on VIPRION systems.

Symptoms include:
-- POST error in the GUI.
-- Automatic classification updates are downloaded successfully, but downloaded packages disappear after some time if you do not proceed to install/deploy.

Conditions:
-- CEC hitless update.
-- Using VIPRION chassis.

Impact:
Unable to auto-update Classification signature package on all slots, because the slot count reported for CEC is 0. These packages are installed only on the current slot.

Workaround:
Install the package manually on each slot.

Note: When you refresh the GUI page, the downloaded package appears in the 'Available to Install' list, and you can proceed to install on each slot.

900905-3 : TMM may crash while processing SIP data

Solution Article: K42830212

900797-2 : Brute Force Protection (BFP) hash table entry cleanup

Component: Application Security Manager

Symptoms:
Brute Force Protection (BFP) uses a hash table to store counters of failed logins per IPs and usernames.
There is a separate hash table for each virtual server.
When the hash table is fully utilized and new entries need to be added, the LRU entry is being removed.
This scenario may cause mitigated entries to keep getting removed from the hash table by new entries.

Conditions:
There is a separate hash table for each virtual server, and its size is controlled by the external_entity_hash_size internal parameter.
When it is set to 0, the size is determined automatically based on system memory.
Otherwise, it is the maximum size of the hash tables together, then divided into the number of virtual servers which have traffic and BFP enabled.
In case of the latter, there might be a chance that with too many virual servers the hash table may reach it's maximum capacity.

Impact:
Mitigated entries that keep getting removed from the hash table by new entries, may result in attacks not getting mitigated.

Workaround:
N/A

Fix:
Mitigated entries are kept in the hash table.

900793-1 : APM Brute Force Protection resources do not scale automatically

Solution Article: K32055534

Component: Application Security Manager

Symptoms:
Under certain conditions, resources for Brute Force Protection must be manually scaled by administrators to provide full protection.

Conditions:
-- Many virtual server (hundreds) that have web application protection with brute force protection enabled.
-- Numerous failed login requests coming to all virtual servers all the time.

Impact:
Administrators must manually change the hash size upon need instead of relying on the automatic configuration.

Workaround:
Set the internal parameter external_entity_hash_size to 0 to allow automatic recalculation of the correct value.

Fix:
Brute Force Protection resources are now scaled automatically based on available system resources.

900789-2 : Alert before Brute Force Protection (BFP) hash are fully utilized

Component: Application Security Manager

Symptoms:
Brute Force Protection (BFP) uses a hash table to store counters of failed logins per IP addresses and usernames. There is a separate hash table for each virtual server. When the hash table is fully utilized and new entries need to be added, the LRU entry is being removed without logging a warning.

Conditions:
This can be encountered when Brute Force Protection is enabled and the hash table reaches its maximum capacity.

Impact:
No alert is sent when entries are evicted.

Workaround:
None.

Fix:
Alert/Warning is now announced in ASM logs, describing the status of the hash table.

900757-2 : TMUI RCE vulnerability CVE-2020-5902

Solution Article: K52145254

899009 : Azure Active Directory deployment fails on BIG-IP 15.1

Component: Access Policy Manager

Symptoms:
In restnoded.log you see an error:

severe: [[azureUtils] ] Cannot get key data. Worker not available :/tm/access/certkey-file-helper/available, details: URI path /tm/access/certkey-file-helper/available not registered. Please verify URI is supported and wait for /available suffix to be responsive.

Conditions:
Azure Active Directory is enabled.

Impact:
Azure Active Directory can not be deployed on BIG-IP 15.1

898997-2 : GTP profile and GTP::parse iRules do not support information element larger than 2048 bytes

Component: Service Provider

Symptoms:
GTP message parsing fails and log maybe observed as below:

GTP:../modules/hudfilter/gtp/gtp_parser.c::242 (Failing here. ).
GTP:../modules/hudfilter/gtp/gtp_parser_ver_2.c::153 (Failing here. ).
GTP:../modules/hudfilter/gtp/gtp_parser.c::103 (Failing here).

Conditions:
- GTP profile is applied to virtual or GTP::parse command is used
- GTP message contains IE (information element) which is larger than 2048 bytes

Impact:
- message parsing fails, traffic maybe interupted

Fix:
GTP profile and GTP::parse iRules now support IE larger than 2048 bytes

898949-1 : APM may consume excessive resources while processing VPN traffic

Solution Article: K04518313

898741-2 : Missing critical files causes FIPS-140 system to halt upon boot

Component: Application Security Manager

Symptoms:
After activating a FIPS 140-2 license on a device and rebooting, the device fails to boot.

Conditions:
-- Device is licensed for FIPS 140 mode
-- A critical system file is missing

Impact:
System halts during boot because of sys-eicheck.py failure.

Workaround:
Prior to rebooting into FIPS 140-2 mode, ensure that there are no missing critical files by running the sys-eicheck command.

If the missing files are due to missing signature update files:

- Manually upload the missing images in System ›› Software Management : Live Update - this will ensure that the image is associated with an installation record.

898705-5 : IPv6 static BFD configuration is truncated or missing

Component: TMOS

Symptoms:
-- When an IPv6 address used in the command 'ipv6 static <addr> <gateway> fall-over bfd' exceeds 19 characters, it gets truncated.

-- IPv6 static BFD configuration entries go missing during a daemon restart.

Conditions:
IPv6 static BFD configuration.

Impact:
The IPv6 static BFD configuration does not persist during reloads.

-- The long IPv6 addresses get truncated.
-- The configuration is removed upon daemon restart.

Workaround:
None.

898461-2 : Several SCTP commands unavailable for some MRF iRule events :: 'command is not valid in current event context'

Component: TMOS

Symptoms:
The following SCTP iRule commands:

-- SCTP::mss
-- SCTP::ppi
-- SCTP::collect
-- SCTP::respond
-- SCTP::client_port
-- SCTP::server_port

Are unavailable in the following MRF iRule events:

-- GENERICMESSAGE_EGRESS
-- GENERICMESSAGE_INGRESS
-- MR_EGRESS
-- MR_INGRESS

Attempts to use these commands in these events result in errors similar to:

01070151:3: Rule [/Common/sctp_TC] error: /Common/sctp1: error: [command is not valid in current event context (GENERICMESSAGE_EGRESS)][SCTP::ppi 46].

Conditions:
-- Using MRF and SCTP.
-- Using the specified set of iRule commands within the listed iRule events.

Impact:
Unable to use these iRule commands within these iRule events.

Workaround:
None.

Fix:
These iRule commands are now available within these iRule events.

898441-1 : Enable logging of IKE keys

Component: TMOS

Symptoms:
IPsec debug level logging does not provide encryption and authentication key information for IKEv1 IKE negotiation. This information is commonly logged by IPsec vendors in order to allow network administrators the ability to decrypt failing ISAKMP exchanges.

Conditions:
-- The BIG-IP system has an IPsec IKEv2 tunnel configured.
-- debug level logging is enabled.

Impact:
Without the encryption and authentication key information, an ISAKMP negotiation cannot be inspected when troubleshooting tunnel negotiation.

Workaround:
None, although the remote peer may log this information.

Fix:
Added sys db variable 'ipsec.debug.logsk' to enable logging of IKE SA keys.

898365-1 : XML Policy cannot be imported

Component: Application Security Manager

Symptoms:
XML Export does not work in configurations that have metacharacters or method overrides defined on URLs.

Conditions:
A policy that has metacharacter or method overrides defined on a URL is exported to XML format.

Impact:
Such a policy cannot be imported.

Workaround:
Use binary export/import or move/remove the problematic elements from the XML file:
* <mandatory_body>
* <operation_id>

Fix:
XML Policy export generates files that correctly correspond to the expected schema and can be imported.

898093-2 : Removing one member from a WideIP removes it from all WideIPs.

Component: Global Traffic Manager (DNS)

Symptoms:
When you use the 'Remove' button to remove a member from a WideIP, the member is removed from all WideIPs.

Conditions:
Use the 'Remove' button.

Impact:
Unintended configuration changes via GUI.

Workaround:
Use the 'Manage' button, rather than the 'Remove' button.

896917 : The fw_zone_stat 'Hits' field may not increment in some scenarios

Component: Advanced Firewall Manager

Symptoms:
The fw_zone_stat 'Hits' field does not reflect the current stats.

Conditions:
When the firewall rule has multiple VLANs defined as destinations (in a zone).

Impact:
The counter for all VLANs does not hit : fw_zone_stat. The corresponding stat value does not increment.

Workaround:
None.

896861-2 : PTR query enhancement for RESOLVER::name_lookup

Component: Global Traffic Manager (DNS)

Symptoms:
Currently RESOLVER::name_lookup does not have PTR reverse domain mapping.

Conditions:
RESOLVER::name_lookup needs an additional iRule to make PTR query work

Impact:
Need an additional iRule to convert to reverse IP PTR query to work

Workaround:
Use an iRule to convert ip address reverse mapping

Fix:
Address IP address reverse mapping for PTR query

896817-2 : iRule priorities error may be seen when merging a configuration using the TMSH 'replace' verb

Component: TMOS

Symptoms:
When merging a configuration that modifies the list of iRules a virtual server uses, you may encounter an error similar to:

01070621:3: Rule priorities for virtual server (/Common/virtual1) must be unique.

Conditions:
-- Merging a configuration using the TMSH 'replace' verb.
-- Replacing a virtual server's iRule in a way that adjusts priorities of the iRules.

Impact:
Unable to replace configuration using TMSH's 'replace' verb.

Workaround:
None.

Fix:
When merging a configuration that modifies the list of iRules a virtual server uses using the TMSH 'replace' verb, no error is encountered.

896709-3 : Add support for Restart Desktop for webtop in VMware VDI

Component: Access Policy Manager

Symptoms:
VMware has a restart desktop option to reboot the Horizon Agents, but APM does not support this feature on the webtop.

Conditions:
You wish to use the VMware Restart desktop feature for the Horizon Agents that are managed by the vCenter Server.

Impact:
Cannot restart the desktop (Horizon Agent) from the webtop by clicking the restart icon.

Workaround:
None.

Fix:
APM now supports restart desktop option on webtop for VMware VDI.

896553-3 : On blade failure, some trunked egress traffic is dropped.

Component: TMOS

Symptoms:
When a blade fails (but not administratively disabled), other blades take 10 seconds (configured with db variable clusterd.peermembertimeout) to detect its absence. Until the blade failure is detected, egress traffic which used the failed blade's interfaces is dropped.

Conditions:
-- A multi-blade chassis.
-- Interfaces are trunked.
-- Some blades do not have directly attached interfaces.
-- A blade which does have directly attached interfaces fails.

Impact:
Some traffic is dropped until the failed blade is detected (10 seconds by default.)

Workaround:
Attach interfaces to all blades.

Fix:
Failed blades are detected within a second.

896473-2 : Duplicate internal connections can tear down the wrong connection

Component: TMOS

Symptoms:
Handling of duplicate internal connections can tear down and clean up the newest connection. Instead it should always remove the oldest.

Conditions:
When internal connections are re-established.

Impact:
The cleanup of previous connections may incorrectly tear down the new connection. Error messages are reported in the log when this happens, for example:

Duplicate connections between BCM56XXD1 and stpd7749-2. Closing the new one.

Workaround:
None.

Fix:
The system now always removes the oldest connection.

896285-2 : No parent entity in suggestion to add predefined-filetype as allowed filetype

Component: Application Security Manager

Symptoms:
No parent entity appears in an ASM Policy Builder suggestion to add to the policy a predefined-filetype to the allowed filetypes list.

Conditions:
The issue is encountered when filetypes are configured with learning mode which allows new filetypes to be added to the policy. Relevant learning modes to this issue are: Always, Selective and Compact.

Impact:
No parent entity appears in the sugestion.

Workaround:
None.

Fix:
Suggestions to add filetypes to the allowed-filetypes list in the policy now contain parent entity.

896217-2 : BIG-IP GUI unresponsive

Component: TMOS

Symptoms:
When you try to log into the GUI via the management IP, you see only a single gray bar displayed in the middle of the window.

Conditions:
-- A GUI session expired while you were logged on.
-- The partition on which the GUI session expires is deleted.
-- You log on again.

Impact:
GUI becomes unresponsive.

Workaround:
Restart tomcat via SSH:
# bigstart restart tomcat

896125-2 : Reuse Windows Logon Credentials feature does not work with modern access policies

Component: Access Policy Manager

Symptoms:
Client users are not automatically logged on to the Edge client using previously entered Microsoft Windows credentials, while client users on Windows computers are prompted with a logon page to enter the credentials.

Conditions:
-- Access policy "customization type" should be set to "modern"
-- In connectivity profile, click Customize Package :: Windows.
-- Under Available Components, select the check box to enable User Logon Credentials Access Service.

Impact:
Unable to automatically logon to Edge client and user is prompted for credentials

Workaround:
Use standard access policy in the virtual server.

895993-2 : TMUI RCE vulnerability CVE-2020-5902

Solution Article: K52145254

895981-2 : TMUI RCE vulnerability CVE-2020-5902

Solution Article: K52145254

895881-1 : BIG-IP TMUI XSS vulnerability CVE-2020-5903

Solution Article: K43638305

895837-3 : Mcpd crash when a traffic-matching-criteria destination-port-list is modified

Component: TMOS

Symptoms:
Virtual server configured with:

-- Destination address in a non-default route-domain, for example:
0.0.0.0%100/0

-- The configuration uses a destination port list.

Conditions:
Modify the virtual server's port-list to a different one.

Impact:
Mcpd generates a core, and causes services to restart and failover.

Workaround:
None.

Fix:
Mcpd no longer crashes when modifying a traffic-matching-criteria's destination port list.

895781-2 : Round Robin disaggregation does not disaggregate globally

Component: TMOS

Symptoms:
Traffic is not disaggregated uniformly as expected.

Conditions:
-- A multi-blade chassis with one HSB.
-- Traffic is received on blade one.
-- The imbalance is more pronounced when the IP variation is small.

Impact:
Some TMMs may use relatively more CPU.

Workaround:
None.

Fix:
Traffic is now disaggregated uniformly in a round robin fashion.

895557-2 : NTLM profile logs error when used with profiles that do redirect

Component: Local Traffic Manager

Symptoms:
As of BIG-IP version 14.1, HTTP iRule commands that inspect HTTP state after the commands HTTP::respond, HTTP::redirect, and HTTP::retry returns errors instead of returning corrupt data (https://support.f5.com/csp/article/K23237429).

When the NTLM profile is configured, it does the same through a built-in TCL rule where among several things, it tries to check if HTTP::cookie exists. If a profile like HTTP exists wherein a redirect/respond/retry is configured, it results in a TCL error informing the admin that they are accessing an invalid HTTP state.

Conditions:
-- NTLM profile is configured alongside HTTP profile
-- One of the redirect/respond/retry commands has been executed before the NTLM profile accesses the state of HTTP (for ex. HTTP::collect, HTTP::close, HTTP::cookie, etc.).

Impact:
Tcl error is seen in /var/log/ltm informing the admin that the iRule operation executed after HTTP::redirect/retry/respond is not supported.

For example -
TCL error: _plugin_rule_/Common/ntlm_default_iis <HTTP_REQUEST> - ERR_NOT_SUPPORTED (line 1) invoked from within "HTTP::cookie exists [PROFILE::ntlm insert_cookie_name]"

895525-2 : TMUI RCE vulnerability CVE-2020-5902

Solution Article: K52145254

895153 : HTTP::has_responded returns incorrect values when using HTTP/2

Component: Local Traffic Manager

Symptoms:
HTTP::has_responded is not detected in an iRule when the request comes across via HTTP/2. Instead, HTTP::has_responded always return the value 'false'.

Conditions:
-- HTTP/2 profile.
-- iRule containing the command HTTP::has_responded.

Impact:
Calls to HTTP::respond or HTTP::redirect are not correctly identified by HTTP::has_responded when using HTTP/2.

Workaround:
None.

Fix:
HTTP::has_responded is now properly detected in iRules where HTTP/2 is used.

894885-3 : [SAML] SSO crash while processing client SSL request

Component: Access Policy Manager

Symptoms:
-- Tmm crashes while processing a client SSO request.
-- Graphs show a high SWAP consumption and there are also some OOM events, although the process being terminated is avrd.

Log messages:
-- notice sod[4759]: 01140045:5: HA reports tmm NOT ready.
-- notice sod[4759]: 010c0050:5: Sod requests links down.

Conditions:
SAML SSO is configured and passing traffic.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

Fix:
Fixed a crash that occurred while handling SSL Orchestrator traffic.

894565-1 : Autodosd.default crash with SIGFPE

Component: Access Policy Manager

Symptoms:
The autodosd process crashes occasionally due to the division by zero.

Conditions:
It happens when the autodosd process receives zero value from tmm.

Impact:
Autodosd is rebooted.

Fix:
The autodosd process does not crash with SIGFPE.

893885-3 : The tpm-status command returns: 'System Integrity: Invalid' after Engineering Hotfix installation

Component: TMOS

Symptoms:
The tpm-status command incorrectly reports system integrity status as 'Invalid' even when system software is not modified.

Conditions:
-- BIG-IP software v14.1.0 or later version.
-- Engineering Hotfix installed on Trusted Platform Module (TPM)-supported BIG-IP platforms.

Impact:
Incorrect presentation of system software status; the status shows INVALID when it is actually valid.

Workaround:
None.

Fix:
Trusted Platform Module (TPM) status now shows the correct system integrity status.

893721-2 : PEM-provisioned systems may suffer random tmm crashes after upgrading★

Component: Traffic Classification Engine

Symptoms:
TMM crashes with SIGSEGV and a core file is written to /var/core/

Conditions:
This affects systems where PEM is provisioned and where the classification engine is running.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

Fix:
None

893281-3 : Possible ssl stall on closed client handshake

Component: Local Traffic Manager

Symptoms:
If a client connection closes before finishing client ssl handshake, in some cases BIG-IP ssl does not close and connection remains until idle timeout.

Conditions:
Client ssl handshake and client FIN must arrive while BIG-IP server ssl finished is in crypto.

Impact:
Some ssl client connection remain until idle timeout.

Fix:
Allow transmit of any pending crypto during ssl shutdown.

893061-2 : Out of memory for restjavad

Component: Application Security Manager

Symptoms:
REST framework not available due to Out of memory error

Conditions:
Long list of Live Update installations

Impact:
Live Update GUI is not responding.

Workaround:
1) Increase memory assigned to the Linux host: (value dependant on platform)

# tmsh modify sys db provision.extramb value 1000

2) Allow restjavad to access the extra memory:

# tmsh modify sys db restjavad.useextramb value true

3) Save the config:

# tmsh save sys config

4) The re-provisioning will trigger a restart of the services. Wait until the unit is online again.

5) Increase the restjavad maxMessageBodySize property:

# curl -s -f -u admin: -H "Content-Type: application/json" -d '{"maxMessageBodySize":134217728}' -X POST http://localhost:8100/mgmt/shared/server/messaging/settings/8100 | jq .
{
  "maxMessageBodySize": 134217728,
  "localhostRestnodedConnectionLimit": 8,
  "defaultEventHandlerTimeoutInSeconds": 60,
  "minEventHandlerTimeoutInSeconds": 15,
  "maxEventHandlerTimeoutInSeconds": 60,
  "maxActiveLoginTokensPerUser": 100,
  "generation": 6,
  "lastUpdateMicros": 1558012004824502,
  "kind": "shared:server:messaging:settings:8100:restservermessagingpoststate",
  "selfLink": "https://localhost/mgmt/shared/server/messaging/settings/8100"
}

Ensure the command returns output showing the limit has been increased (as shown above).

6) Reboot the unit.

892941-2 : F5 SSL Orchestrator may fail to stop an attacker from exfiltrating data on a compromised client system (SNIcat)

Solution Article: K20105555

Component: Local Traffic Manager

Symptoms:
For more information, please see:
https://support.f5.com/csp/article/K20105555

Conditions:
For more information, please see:
https://support.f5.com/csp/article/K20105555

Impact:
For more information, please see:
https://support.f5.com/csp/article/K20105555

Workaround:
For more information, please see:
https://support.f5.com/csp/article/K20105555

Fix:
For more information, please see:
https://support.f5.com/csp/article/K20105555

892937-2 : F5 SSL Orchestrator may fail to stop an attacker from exfiltrating data on a compromised client system (SNIcat)

Solution Article: K20105555

Component: Access Policy Manager

Symptoms:
For more information, please see:
https://support.f5.com/csp/article/K20105555

Conditions:
For more information, please see:
https://support.f5.com/csp/article/K20105555

Impact:
For more information, please see:
https://support.f5.com/csp/article/K20105555

Workaround:
For more information, please see:
https://support.f5.com/csp/article/K20105555

Fix:
For more information, please see:
https://support.f5.com/csp/article/K20105555

892677-1 : Loading config file with imish adds the newline character

Component: TMOS

Symptoms:
While loading configuration from the file with IMISH ('imish -f <f_name>'), the newline character gets copied at the end of each line which causes problems with commands containing regex expressions.

In particular, this affects the bigip_imish_config Ansible module.

Conditions:
Loading a config with 'imish -f <f_name>' commands.

Note: This command is used with the bigip_imish_config Ansible module.

Impact:
Regex expressions are not created properly.

Workaround:
You can use either of the following workarounds:

-- Delete and re-add the offending commands using the imish interactive shell.

-- Restart tmrouted:
bigstart restart tmrouted

892653-1 : Unable to define Maximum Query String Size and Maximum Request Size fields for Splunk Logging Format in the GUI

Component: Application Security Manager

Symptoms:
You are unable to define Maximum Query String Size and Maximum Request Size fields for Splunk Logging Format in the GUI.

Conditions:
This is encountered when configuring the Splunk Logging Format in the GUI

Impact:
You are unable to define Maximum Query String Size and Maximum Request Size fields for Splunk Logging Format in the GUI.

Workaround:
Use tmsh to define the maximum query string size and maximum request size. For more information, see the tmsh command reference for the security log profile at https://clouddocs.f5.com/cli/tmsh-reference/v14/modules/security/security-log-profile.html

Fix:
Maximum Query String Size and Maximum Request Size fields will be shown in the GUI in case the Splunk Logging Format is selected.

892637-1 : Microservices cannot be added or modified

Component: Application Security Manager

Symptoms:
The 'Add' button is grayed out on Security :: Application Security :: Microservices, where in previous version, minimal microservice creation/modification was available.

Conditions:
-- Navigate to Security :: Application Security :: Microservices.
-- Attempt to add a microservice.

Impact:
Cannot add or modify a microservice in this version, where it was available in previous versions.

Workaround:
None

Fix:
The 'Add' button is now available to create basic microservices for Application Security.

892621-1 : Mismatch between calculation for IPv6 packets size metric in BDoS in hardware and software

Component: Advanced Firewall Manager

Symptoms:
BDoS Signature mitigated in software.

Conditions:
IP packets size metric in BDoS signature.

Impact:
BDoS Signature with IP packet size metric mitigated only in software for IPv6 packets.

Workaround:
None.

Fix:
IP packets size metric bin calculation algorithm for IPv6 packets in software now matches hardware version.

892385 : HTTP does not process WebSocket payload when received with server HTTP response

Component: Local Traffic Manager

Symptoms:
WebSocket connection hangs on the clientside if the serverside WebSocket payload is small and received in the same TCP packet with server HTTP response.

Conditions:
-- Virtual contains HTTP and WebSocket filters.
-- HTTP response and a small WebSocket payload is received in the same TCP packet from the server.
-- Small WebSocket payload is not delivered on the clientside.

Impact:
-- WebSocket connection hangs.

Workaround:
None.

Fix:
HTTP processes WebSocket payload without delay when payload is received with server HTTP response.

891849-1 : Running iRule commands while suspending iRule commands that are running can lead to a crash

Component: Local Traffic Manager

Symptoms:
Running iRule commands while suspending iRule commands that are running can lead to a crash.

Conditions:
-- Running iRule commands.
-- iRule commands that suspend iRules are running.

For more information on the conditions that trigger iRule suspend, see K12962: Some iRules commands temporarily suspend iRules processing, available at https://support.f5.com/csp/article/K12962.

Impact:
Tmm crashes. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
Running iRule commands while suspending iRule commands are running no longer results in a tmm crash.

891729-2 : Errors in datasyncd.log★

Component: Fraud Protection Services

Symptoms:
An error exists in datasyncd.log:
DATASYNCD|ERR |Mar 13 12:47:54.079|16301| datasyncd_main.c:1955|tbl_gen_state_machine: cannot start the generator for table CS_FPM

Conditions:
Upgrades from version 13.x to 14.0.0 or higher.

Impact:
FPS has a maximum of ~990 rows instead of 1001, and there are errors in datasyncd.log. However, the upgrade completes normally, and the system operates as expected.

Workaround:
These are benign error messages that you can safely ignore. Upgrade completes successfully, and the system operates as expected.

If you prefer, however, you can perform a clean install instead instead of upgrading. This has an impact on your configuration, as that information will be lost when you do a clean install.

Fix:
Now the max rows number is 1001 when upgrading from any version prior to 14.0.0.

891721-3 : Anti-Fraud Profile URLs with query strings do not load successfully

Component: TMOS

Symptoms:
When a URL containing a query string is added to an anti-fraud profile, the BIG-IP config load fails:

010719d8:3: Anti-Fraud URL '/url\?query=string' is invalid. Every protected URL should be a valid non-empty relative path specified in lower case in the case insensitive Anti-Fraud profile '/Common/antifraud'.
Unexpected Error: Loading configuration process failed.

Conditions:
Adding a query string to a URL for an anti-fraud profile.

Impact:
After a BIG-IP config save, loading of new bigip.conf fails.

Workaround:
Follow this procedure:

1. Remove the escaping characters \ (backslash) for ? (question mark) in the bigip.conf file.
2. Load the configuration.

Fix:
The issue has been fixed: Now Anti-fraud profile URLs support query strings such as /uri?query=data, and they can be successfully loaded.

891505-3 : TMM might leak memory when OAuth agent is used in APM per-request policy subroutine.

Component: Access Policy Manager

Symptoms:
TMM leaks memory and eventually crashes when it cannot allocate any more memory.

Conditions:
OAuth agent is used in APM per-request policy subroutine and authentication fails.

Impact:
Over a period of time, TMM crashes, as it is unable to allocate any more memory. Traffic is disrupted while tmm restarts.

Workaround:
None.

Fix:
When fixed, TMM works as expected and no longer leaks memory.

891477-3 : No retransmission occurs on TCP flows that go through a BWC policy-enabled virtual server

Component: TMOS

Symptoms:
When a bandwidth control policy is applied on a virtual server, the BIG-IP system does not retransmit unacknowledged data segments, even when the BIG-IP system receives a duplicate ACK.

Both static bandwidth control policies and dynamic bandwidth control policies can cause the problem.

Conditions:
This issue occurs when both of the following conditions are met:

-- Virtual server configured with a bandwidth control policy.
-- Standard type of virtual server.

Impact:
The BIG-IP system does not retransmit unacknowledged data segments.

Workaround:
None.

891457-2 : NIC driver may fail while transmitting data

Solution Article: K75111593

891385-2 : Add support for URI protocol type "urn" in MRF SIP load balancing

Component: Service Provider

Symptoms:
MRF SIP load balancing does not support the urn URI protocol type.

Conditions:
-- Using MRF SIP in LB mode.
-- Clients are using the urn protocol type in their URIs.

Impact:
SIP messages with urn URIs are rejected.

Fix:
Added support for the urn URI protocol type.

891373-2 : BIG-IP does not shut a connection for a HEAD request

Component: Local Traffic Manager

Symptoms:
When an HTTP request contains the 'Connection: close' header, the BIG-IP system shuts the TCP connection down. If a virtual server has a OneConnect profile configured, the BIG-IP system fails to close the connection for HEAD requests disregarding a client's demand.

Conditions:
-- A virtual server has HTTP and OneConnect profiles.
-- An HTTP request has the method HEAD and the header 'Connection: close'.

Impact:
Connection remains idle until it expires normally, consuming network resources.

Workaround:
None.

Fix:
When an HTTP HEAD request contains 'Connection: close' header and a OneConnect profile is configured on a virtual server, the BIG-IP system shuts a connection down after a response is served.

891337-1 : 'save_master_key(master): Not ready to save yet' errors in the logs

Component: TMOS

Symptoms:
During config sync, you see error messages in the logs:
save_master_key(master): Not ready to save yet.

Conditions:
UCS load or configuration synchronization that includes encrypted objects.

Impact:
Many errors seen in the logs.

Workaround:
None.

Fix:
Fixed an issue causing 'save_master_key(master): Not ready to save yet' errors.

891093-1 : iqsyncer does not handle stale pidfile

Component: Global Traffic Manager (DNS)

Symptoms:
Stale /var/run/iqsyncer.pid file is causing a new iqsyncer application to exit immediately after start.

Conditions:
iqsyncer applications is killed by Linux kernel or any other reason causing a stale iqsyncer pid file

Impact:
Gtm config changes and gtm_add operations are blocked

Workaround:
Remove iqsyncer pid file manually or reboot

Fix:
Stale iqsyncer pid file condition handled in iqsyncer application

890513-2 : MCPD fails to load configuration from binary database

Component: TMOS

Symptoms:
Mcpd errors are found in /var/log/ltm:

-- err mcpd[16068]: 01070734:3: Configuration error: MCPProcessor::initializeDB: basic_string::_S_create
-- err mcpd[16068]: 01070596:3: An unexpected failure has occurred, basic_string::_S_create, exiting...
-- err mcpd[16978]: 01b50049:3: FipsUserMgr Error: Master key load failure.

Conditions:
-- Restart MCPD (e.g. by rebooting the BIG-IP)
-- This affects BIG-IP v15.1.0.4 running on all platforms with the exception of the following:
  + i5820-DF / i7820-DF
  + 5250v-F / 7200v-F
  + 10200v-F
  + 10350v-F

Impact:
MCPD does not restore the configuration from its binary database, but instead re-reads the text config files (bigip.conf, et al.).

Workaround:
None.

Fix:
MCPD is again able to restore its configuration from the binary database during startup

890421-2 : New traps were introduced in 15.0.1.2 for Georedundancy with previously assigned trap numbers★

Component: TMOS

Symptoms:
The Georedundancy traps introduced in 15.0.1.2 with trap IDs in the F5 enterprise MIB of .1.3.6.1.4.1.3375.2.4.0.206 to .1.3.6.1.4.1.3375.2.4.0.211 should have been numbered from .1.3.6.1.4.1.3375.2.4.0.212 to .1.3.6.1.4.1.3375.2.4.0.217

Conditions:
When 15.0.1.2 is upgraded to 15.1.0 then the traps would be renumbered.

Impact:
This may be confusing for SNMP clients expecting specific trap IDs.

Workaround:
None.

Fix:
The traps have been correctly numbered in 15.0.1.3.

Behavior Change:
New traps were introduced in 15.0.1.2 for Georedundancy with previously assigned trap numbers. These traps will be renumbered when you upgrade 15.0.1.2 to 15.1.0.

The Georedundancy traps introduced in 15.0.1.2 with trap IDs in the F5 enterprise MIB of .1.3.6.1.4.1.3375.2.4.0.206 to .1.3.6.1.4.1.3375.2.4.0.211 should have been numbered from .1.3.6.1.4.1.3375.2.4.0.212 to .1.3.6.1.4.1.3375.2.4.0.217

890277-3 : Full config sync to a device group operation takes a long time when there are a large number of partitions.

Component: TMOS

Symptoms:
When a full config sync is done to a device group with large number of partitions:
-- The config sync operation takes a long time to complete.
-- There is a spike in CPU usage on the device where config push is initiated.
-- The mcpd daemon is unresponsive to other daemons, such tmsh, GUI etc., as it is busy pushing the config sync.
-- iQuery connections are terminated due to high CPU utilization.

Conditions:
Full config sync on device with large number of partitions.

Impact:
The operation takes a long time to complete, minutes on a BIG-IP Virtual Edition (VE) configurations, and varies by platform and the size of the configuration. For example, config sync on a medium BIG-IP VE setup running v15.1.0.1 with 512 partitions takes ~3 minutes.

Impedes management of device as well as terminates iQuery connections to GTM/DNS devices.

Workaround:
Enable Manual Incremental Sync.

890229-1 : Source port preserve setting is not honored

Component: Local Traffic Manager

Symptoms:
The source port is always changed in source-port preserve mode even if the original source port with the other parameters would hash to the same TMM.

Conditions:
This issue occurs when both of the following conditions are met:

-- The virtual server is configured with source-port preserve (the default).
-- The system uses one of the following hash configurations including IP addresses.
    - Using RSS DAG as a default hash on BIG-IP Virtual Edition (VE) (Z100) or on 2000- and 4000-series devices.
    - Configuring a VLAN's 'CMP Hash' setting to a non-default value.
    - Using a special variable such as non-default udp.hash or tcp.hash.

Impact:
Applications relying on a specific, fixed source port might not work as expected.

Workaround:
Set source-port to preserve-strict.

Fix:
Now source-port preserve setting does best effort to preserve the source port.

Behavior Change:
Beginning with v16.0.0, the TM.PortFind.Src_Preserve BigDB variable introduced in v15.1.0 is no longer supported.

The source-port preserve setting now does best effort to preserve the source port.

889601-3 : OCSP revocation not properly checked

Solution Article: K14903688

Component: Local Traffic Manager

Symptoms:
The revocation status of un-trusted intermediate CA certs are not checked when ocsp object is configured.

Conditions:
When OCSP object revocation checking is configured in client and server SSL profiles

Impact:
The SSL handshake continues eve if a certificate is revoked.

Fix:
OCSP revocation checking now working properly.

889557-1 : jQuery Vulnerability CVE-2019-11358

Solution Article: K20455158

889505 : Added SNMP OIDs for gathering total number of PBAs and percentage of PBAs available

Component: Advanced Firewall Manager

Symptoms:
Several SNMP OIDs need to be added to provide the total number of port block allocations (PBAs) and the percentage of PBAs that are available.

Conditions:
Attempting to retrieve total number of PBAs and percentage of PBAs that are available.

Impact:
Need to manually calculate the values.

Workaround:
Make manual calculations from the current stats or configuration.

Fix:
-- Can now directly gather the total number of PBA and percentage of ports available.

There are new SNMP OIDs from which to pull this data directly. Although there is way to get this information from the current stats or configuration by making some calculations, the SNMP OIDs enables pulling these values directly.

Behavior Change:
The following new MIBs are now available:

F5-BIGIP-LOCAL-MIB::ltmLsnPoolStatTotalPortBlocks
F5-BIGIP-LOCAL-MIB::ltmLsnPoolStatPercentFreePortBlocksSnmp

F5-BIGIP-LOCAL-MIB::ltmFwNatDynamicPoolStatPbaTotalPortBlocks
F5-BIGIP-LOCAL-MIB::ltmFwNatDynamicPoolStatPbaPercentFreePortBlocksSnmp

889477-1 : Modern customization does not enforce validation at password changing

Component: Access Policy Manager

Symptoms:
You can change the password even if there are different values in the fields 'New Password' and 'Confirm Password' or if 'Confirm Password' is empty.

Conditions:
-- Access Policy with 'Modern' customization.
-- Configure an access policy with 'Logon Page' and 'AD Auth' agents.
-- When forced to change passwords, type different values in 'New Password' and 'Confirm Password', or leave 'Confirm Password' empty.

Impact:
The system allows the password change, even though the 'New Password' and 'Confirm Password' do not match.

Workaround:
None.

889209-2 : Sflow receiver configuration may lead to egress traffic dropped after TMM starts.

Component: Local Traffic Manager

Symptoms:
Active Sflow receiver configuration may lead to all egress traffic getting dropped after TMM starts.

Conditions:
Enabled sflow receiver is configured.

Impact:
Egress traffic is dropped.

Workaround:
Disable Sflow receiver, save configuration, reboot. (You should not re-enable the sflow receiver in versions where this bug is present)

889165-3 : "http_process_state_cx_wait" errors in log and connection reset

Component: Local Traffic Manager

Symptoms:
Large POST requests are getting occasionally reset and you see the following in /var/log/ltm:

err tmm[19279]: 011f0007:3: http_process_state_cx_wait - Invalid action:0x100011 clientside

Conditions:
-- An HTTP iRule is configured on a virtual server
-- A large POST request arrives on the virtual server

Impact:
Possible connection failure.

Fix:
Fixed incorrect early release of HUDEVT_ACCEPTED during ssl handshake irules.

889045-3 : Virtual server may stop responding while processing TCP traffic

Component: TMOS

Symptoms:
On certain platforms, virtual servers may stop responding while processing TCP traffic.

Conditions:
- i2000 platform
- TCP virtual server enabled

Impact:
Virtual servers stop responding.

Workaround:
N/A

Fix:
Virtual servers respond as expected when processing TCP traffic

889041-3 : Failover scripts fail to access resolv.conf due to permission issues

Component: TMOS

Symptoms:
When a failover is triggered, the floating IP addresses do not migrate to the newly active device. In /var/log/auditd/audit.log, you see the following errors:

/var/log/auditd/audit.log:type=AVC msg=audit(1583426470.463:27492): avc: denied { read } for pid=26865 comm="curl" name="resolv.conf" dev="dm-5" ino=32804 scontext=system_u:system_r:f5config_failover_t:s0 tcontext=system_u:object_r:net_conf_t:s0 tclass=lnk_file

Conditions:
-- A failover event occurs.
-- oci-curl will be called when failover happens, which may be unable to read /etc/resolv.conf.

Impact:
Failover does not complete. Floating IP addresses do not move to the active device.

Workaround:
Run two commands:
tmsh modify sys db failover.selinuxallowscripts enable
setenforce 0

Impact of workaround: these commands disable SELinux policy enforcement.

889029-2 : Unable to login if LDAP user does not have search permissions

Component: TMOS

Symptoms:
A user is unable to log in using remote LDAP.

Conditions:
-- BIG-IP systems are configured to use LDAP authentication.
-- Remote user has no search permissions on directory

Impact:
Authentication does not work.

Workaround:
Grant search permissions to the user in LDAP.

888625 : CGNAT PBA active port blocks counter is incorrect compared to actual allocated port blocks

Component: Carrier-Grade NAT

Symptoms:
There is a difference in active port block counter between statistics collected in TMM and actual allocations in 'lsndb list pba'.

Conditions:
The issue happens when the port block allocation process fails after incrementing the active port blocks counter.

Impact:
No functional impact. But the stats counters will be incorrect.

Fix:
Update the active port block counter correctly when port block allocation fails.

888569 : Added PBA stats for total number of free PBAs, and percent free PBAs

Component: Advanced Firewall Manager

Symptoms:
There are several port block allocation (PBA) statistics that need to be added.

Conditions:
Attempting to retrieve total number of PBAs and percentage of PBAs that are available.

Impact:
Need to manually calculate the values.

Workaround:
Make manual calculations from the current stats or configuration.

Fix:
The first and second item described are available using the 'tmsh show' command, and the third item is available in the tmstat tables (e.g., reported in response to the command 'tmctl lsn_pool_pba_stat' as total_port_blocks).

-- Total number of port blocks available:
The total amount of port blocks available according to the PBA configuration. For example, if you have 3 IP addresses for NAT pool/source translation and blocks of 128 ports, and ports from 1024 to 65535, then this stat indicates that you have a total of 1509 port blocks. This number is the result of (64511 (ports available) / 128 (ports per block)) * 3 (number of IP addresses)).

-- Percentage of port available (percentage is available in TMSH only):
Using the same example, where there are 1509 total blocks and currently are assigned 600 blocks, then there are 909 blocks free. This stat show that are 60.23% of ports available. (100*free ports / total ports).

-- Directly gather the values.
There are new SNMP OIDs from which to pull this data directly. Although there is way to get this information from the current stats or configuration by making some calculations, the SNMP OIDs enables pulling these values directly.

Behavior Change:
The following new tmstat value is now available, in both 'tmctl fw_lsn_pool_pba_stat' and 'tmctl lsn_pool_pba_stat:

total_port_blocks

The relevant TMSH show commands have been updated to include these new values:

-- Total Port Blocks
-- Percent Free Port Blocks

888517-2 : Network Driver Abstraction Layer (NDAL) busy polling leads to high CPU.★

Component: Local Traffic Manager

Symptoms:
Tmm is running at 100% CPU even under light network load. The 'tmctl tmm/ndal_tx_stats' command shows a high number of packet drops. The 'tmctl tmm/ndal_tx_stats' indicates a large number of queue full events.

Conditions:
-- BIG-IP Virtual Edition.
-- There are underlying network performance issues causing the transmit queue to be full (e.g., a non-SR-IOV virtual machine environment).
-- Upgrading from BIG-IP v12.x to BIG-IP v14.x.

Impact:
NDAL's busy polling runs the tmm CPU usage to 100%.

Workaround:
Correct the underlying networking/virtualization issue.

Fix:
NDAL needs to provide visible information, for example, a log entry, when busy polling over a period of time.

888497-2 : Cacheable HTTP Response

Component: TMOS

Symptoms:
JSESSIONID, BIGIPAUTHCOOKIE, BIGIPAUTH can be seen in the browser's debugging page.

Conditions:
-- Accessing the BIG-IP system using the GUI.
-- Viewing the browser's stored cache information.

Impact:
HTTPS session information is captured/seen in the browser's local cache, cookie.

Note: The BIG-IP system does not display and/or return sensitive data in the TMUI. Content that is marked appropriately as sensitive is never returned, so it is never cached. Data that is cached for TMUI in the client browser session is not considered secret.

Workaround:
Disable caching in browsers.

888493-2 : ASM GUI Hardening

Solution Article: K40843345

888489-2 : ASM UI hardening

Solution Article: K55873574

888417-5 : Apache Vulnerability: CVE-2020-8840

Solution Article: K15320518

888341-7 : HA Group failover may fail to complete Active/Standby state transition

Component: TMOS

Symptoms:
After a long uptime interval (i.e., the sod process has been running uninterrupted for a long time), HA Group failover may not complete despite an HA Group score change occurring. As a result, a BIG-IP unit with a lower HA Group score may remain as the Active device.

Note: Uptime required to encounter this issue is dependent on the number of traffic groups: the more traffic groups, the shorter the uptime, e.g.:

-- 1 floating traffic group: 2485~ days.
-- 2 floating traffic groups: 1242~ days.
-- 4 floating traffic groups: 621~ days.
-- 8 floating traffic groups: 310~ days.
-- 9 floating traffic groups: 276~ days.

Note: You can confirm sod process uptime in tmsh:

# tmsh show /sys service sod

Conditions:
HA Group failover configured.

Note: No other failover configuration is affected except for HA Group failover, specifically, these are not affected:

o VLAN failsafe failover.
o Gateway failsafe failover.
o Failover triggered by loss of network failover heartbeat packets.
o Failover caused by system failsafe (i.e., the tmm process was terminated on the Active unit).

Impact:
HA Group Active/Standby state transition may not complete despite HA Group score change.

Workaround:
There is no workaround.

The only option is to reboot all BIG-IP units in the device group on a regular interval. The interval is directly dependent on the number of traffic groups.

888289-1 : Add option to skip percent characters during normalization

Component: Application Security Manager

Symptoms:
An attack signature is not detected.

Conditions:
-- The payload is filled with the percent character in between every other character.
-- The bad unescape violation is turned off.
-- The illegal metacharacter violation is turned off.

Impact:
An attack goes undetected.

Workaround:
Turn on the bad unescape violation or the metacharacter violation.

Fix:
Added an internal parameter, normalization_remove_percents. Its default is 0 (zero), meaning that the previous behavior is maintained. When enabled, the normalization of the data before running the signature removes the percent characters (as it does to high ASCII and space characters).

888285-1 : Sensitive positional parameter not masked in 'Referer' header value

Solution Article: K18304067

Component: Application Security Manager

Symptoms:
When the URI and 'Referer' header share the same positional parameter, the 'Referer' positional parameter is not masked in logs.

Conditions:
Sending a request with positional parameter in URI and 'Referer' header.

Impact:
'Referer' header positional parameter value is not masked in logs.

Workaround:
None.

Fix:
'Referer' positional parameter value is masked as expected.

888261-1 : Policy created with declarative WAF does not use updated template.

Component: Application Security Manager

Symptoms:
When importing a declarative policy with an updated template, the operation uses the old version of the template, which is saved on the machine.

Conditions:
Declarative policy is created from a user-defined template and then re-created after updating the template.

Impact:
The re-created declarative policy is based on the old template, which is saved without the changes that were made in the template.

Workaround:
Create new template and use it when recreating the declarative policy.

Fix:
While creating the policy, if the saved template on the machine is older than the template file, the system replaces the file on the machine and uses the updated template.

888145-2 : When BIG-IP is deployed as SAML SP, allow APM session variables to be used in entityID property

Component: Access Policy Manager

Symptoms:
The entityID property of SAML Service Provider (SP) object ('apm aaa saml') accepts only a valid URI as the value if host is empty. All other values are deemed invalid.

This creates a less than optimal configuration experience in certain use-cases. For instance, when the deployment contains two SAML SP configuration objects that are essentially identical, with the only difference being the entityID value, validation prevents reusing the same object, and mandates creation of two independent configuration objects.

Conditions:
-- The BIG-IP system is used as a SAML SP with two or more SP configuration objects.
-- The only difference between two (or more) configured SP configuration objects is the value of entityID.

Impact:
None. This is a usability enhancement.

Workaround:
Creating multiple SP objects.

Fix:
This enhancement supports configuring an APM session variable in the entityID property of SAML SP ('apm aaa saml') objects, thus reducing the number of nearly duplicate SP configuration objects.

NOTE: When a session variable is used in the entityID property of a SAML SP object, the SAML metadata exported by such object must be edited manually to replace the session variables with valid FQDN names before the metadata is shared with external parties.

888113-3 : TMM may core when the HTTP peer aborts the connection

Component: Local Traffic Manager

Symptoms:
TMM cores in the HTTP proxy.

Conditions:
-- HTTP and HTTP Router profiles are configured on the virtual server.
-- The HTTP peer aborts the connection unexpectedly.

Impact:
Failover (in a DSC), or outage (standalone) as traffic is disrupted while tmm restarts.

Workaround:
None.

Fix:
TMM no longer cores in the HTTP proxy when the HTTP peer aborts the connection.

887965-1 : Virtual server may stop responding while processing TCP traffic

Component: Local Traffic Manager

Symptoms:
Under certain conditions, a virtual server may stop responding while processing TCP traffic.

Conditions:
- TCP virtual server with FastL4 and L7 (e.g., HTTP) profiles.
- Undisclosed conditions

Impact:
Affected virtual server becomes unavailable until conditions resolve. Other virtual servers on the system are not impacted.

Workaround:
None.

Fix:
TCP traffic is now processed as expected

887637-2 : Systemd-journald Vulnerability: CVE-2019-3815

Solution Article: K22040951

887505-1 : Coreexpiration script improvement

Component: TMOS

Symptoms:
Script fails with:
stat: cannot stat '/shared/core/*.core.*': No such file or directory.

In addition, the system reports a message in /var/log/user and /var/log/messages when there are no core files:
Deleting file /shared/core/*.core.*

Conditions:
Coreexpiration script is run.

Impact:
No core is produced. In addition, there is no core deleted.

Workaround:
To resolve the issue, add the following line to the script:

  for filename in /shared/core/*.core.*; do
   + [ -e "$filename" ] || continue
         # Time of last modification as seconds since Epoch

887089-1 : Upgrade can fail when filenames contain spaces

Component: TMOS

Symptoms:
Filenames with spaces in /config directory can cause upgrade/UCS load to fail because the im upgrade script that backs up the config, processes the lines in a file spec using white space characters. The number of spaces in the filename is significant because it determines how the process separates the name into various fields, including a path to the file, an md5sum, and some file properties (notably size). If the path contains white space, when the upgrade/UCS load process attempts to use a field, the operation encounters a value other than what it expects, so the upgrade/UCS load fails.

The file's content is also significant because that determines the md5sum value.

Although rarely occurring, a tangential issue exists when the sixth word is a large number. The sixth field is used to determine the amount of space needed for the installation. When the value is a very large number, you might see an error message at the end of the upgrade or installation process:

Not enough free disk space to install!

Conditions:
Filenames with spaces in /config directory.

Impact:
Upgrade or loading of UCS fails.

Workaround:
Remove the spaces in filenames and try the upgrade/UCS load again.

887017-3 : The dwbld daemon consumes a large amount of memory

Component: Advanced Firewall Manager

Symptoms:
The dwbld daemon shows very large memory consumption after adding addresses to the shun-list.

Conditions:
-- Adding a large number of IP addresses to the shun-list (millions of IP addresses).
-- Viewing dwbl memory usage using:
config # top -p $(pidof dwbld)

Impact:
Excessive memory consumption. If memory is exhausted, enforcement does not occur.

Workaround:
None.

Fix:
Improvements to dwbld memory handling have been implemented.

886729-2 : Intermittent TMM crash in per-request-policy allow-ending agent

Component: Access Policy Manager

Symptoms:
TMM crash.

Conditions:
When user trying to access a URL with unique hostname in the current session.

Impact:
TMM crash. No access to the URL. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
This intermittent TMM crash no longer occurs.

886693-3 : System may become unresponsive after upgrading★

Component: TMOS

Symptoms:
After upgrading, the system encounters numerous issues:

-- Memory exhaustion (RAM plus swap) with no particular process consuming excessive memory.
-- High CPU usage with most cycles going to I/O wait.
-- System is unresponsive, difficult to log in, slow to accept commands.
-- Provisioning is incomplete; there is a small amount of memory amount assigned to 'host' category.

Conditions:
-- The configuration loads in the previous release, but does not load successfully on the first boot into the release you are upgrading to.
-- Device is upgraded and the configuration is rolled forward.
-- There may be other conditions preventing the configuration from loading successfully after an upgrade.

Exact conditions that trigger this issue are unknown and could be varied. In the environment in which it occurs, a datagroup is deleted, but an iRule still references it, see: https://cdn.f5.com/product/bugtracker/ID688629.html

Impact:
-- System down, too busy to process traffic.
-- Difficulty logging in over SSH might require serial console access.

Workaround:
Reboot to an unaffected, pre-upgrade volume.

-- If the system is responsive enough, use 'tmsh reboot volume <N>' or switchboot to select an unaffected volume.

-- If the system is completely unresponsive, physically powercycle a physical appliance or reboot a BIG-IP Virtual Edition (VE) from an applicable management panel, and then select an unaffected volume from the GRUB menu manually.

Note: This requires that you have console access, or even physical access to the BIG-IP device if you are unable to SSH in to the unit. On a physical device, a non-responsive system might require that you flip the power switch.

For more information, see:
-- K9296: Changing the default boot image location on VIPRION platforms :: https://support.f5.com/csp/article/K9296
-- K5658: Overview of the switchboot utility :: https://support.f5.com/csp/article/K5658
-- K10452: Overview of the GRUB 0.97 configuration file :: https://support.f5.com/csp/article/K10452.

Fix:
The system should now remain responsive if the configuration fails to load during an upgrade on the following platforms:

-- BIG-IP 2000s / 2200s
-- BIG-IP 4000s / 4200v
-- BIG-IP i850 / i2600 / i2800
-- BIG-IP Virtual Edition (VE)

886689-6 : Generic Message profile cannot be used in SCTP virtual

Component: TMOS

Symptoms:
When creating virtual server or transport config containing both SCTP and Generic Message profile, it will fail with an error:

01070734:3: Configuration error: Profile(s) found on /Common/example_virtual that are not allowed: Only (TCP Profile, SCTP Profile, DIAMETER Profile, Diameter Session Profile, Diameter Router Profile, Diameter Endpoint, SIP Profile, SIP Session Profile, SIP Router Profile, DoS Profile, profile statistics)

Conditions:
Create virtual server or transport config which contains both SCTP and Generic Message profile.

Impact:
You are unable to combine the Generic Message profile with the SCTP profile.

Fix:
Generic Message profile can be used in SCTP virtual

886085-5 : BIG-IP TMM vulnerability CVE-2020-5925

Solution Article: K45421311

885201-2 : BIG-IP DNS (GTM) monitoring: 'CSSLSocket:: Unable to get the session"'messages appearing in gtm log

Component: Global Traffic Manager (DNS)

Symptoms:
Err (error) level messages in /var/log/gtm log when DNS (GTM) SSL monitors such as https are used and are unable to connect to the monitored target IP address:

err big3d[4658]: 01330014:3: CSSLSocket:: Unable to get the session.

These messages do not indicate the IP address or port of the target that failed to connect, and this ambiguity may cause concern.

Conditions:
-- SSL-based DNS (GTM) monitor assigned to a target, for example https
-- TCP fails to connect due to a layer 2-4 issue, for example:
   - No route to host.
   - Received a TCP RST.
   - TCP handshake timeout.

Impact:
The system reports unnecessary messages; the fact that the monitor failed is already detailed by the pool/virtual status change message, and the target changing to a red/down status.

These messages can be safely ignored.

Workaround:
If you want to suppress these messages, you can configure a syslog filter.

For more information, see K16932: Configuring the BIG-IP system to suppress sending SSL access and request messages to remote syslog servers :: https://support.f5.com/csp/article/K16932.

Fix:
Added debug messages for SSL probing with attached DB variable

884797-4 : Portal Access: in some cases data is not delivered via WebSocket connection

Component: Access Policy Manager

Symptoms:
If a client browser opens a WebSocket connection, Portal Access may not send data to the client if the first message in the new connection comes from the server.

Conditions:
- Web application with WebSocket connection
- First data in WebSocket connection is sent from server to client

Impact:
Data is not delivered to the client browser via the WebSocket connection.

Fix:
Now Portal Access can deliver data to the client browser via the WebSocket connection when the first data is sent from the server.

884425-2 : Creation of new allowed HTTP URL is not possible

Component: Application Security Manager

Symptoms:
When pressing 'Create' button in
Security ›› Application Security : URLs : Allowed URLs : Allowed HTTP URLs page, the requested page is not loaded.

Conditions:
Policy with about 5000 and more parameters causes long loading time, which results in loading failure.

Impact:
The requested page (New Allowed HTTP URL...) is not loaded.

Workaround:
Use fewer parameters (less than 5000) per policy.

883853-2 : Bot Defense Profile with staged signatures prevents signature update★

Component: Application Security Manager

Symptoms:
When a trying to install a new bot defense signature, the installation fails with the following log message:

com.f5.liveupdate.update.dosbotsignatures.file.Update.applyChanges.pl|INFO|Feb 10 13:22:12.924|7347|F5::Dos::BotSignatures::load_from_xml,,Cannot send updated objects to mcp: 01070265:3: The Bot Defense Signature (/Common/Headless Chromium, Chrome) cannot be deleted because it is in use by a Bot Defense Profile Signature Staging.

Conditions:
-- A Bot Defense Profile has a staged signature.
-- The staged signature points to something that does not exist in the update file.

Impact:
The new file cannot be installed.

Workaround:
Enforce the staged signature.

Fix:
Before deleting the signature, the installation process checks to see whether the signature is staged, and if it is, the process unstages it.

883717-1 : BD crash on specific server cookie scenario

Solution Article: K37466356

883577-4 : ACCESS::session irule command does not work in HTTP_RESPONSE event

Component: Access Policy Manager

Symptoms:
When ACCESS::session irule is used in HTTP_RESPONSE event, the APM session creation fails with the following log in /var/log/ltm

No HTTP data available - command unsupported in event (line XX)session creation failed - Operation not supported (line XX)

Conditions:
Using ACCESS::session create command under HTTP_RESPONSE.

Impact:
Cannot create APM session using the ACCESS::session irule command.

Workaround:
The same irule ACCESS::session can be used under HTTP_REQUEST to create the APM session.

883529-1 : HTTP/2 Method OPTIONS allows '*' (asterisk) as an only value for :path

Component: Local Traffic Manager

Symptoms:
HTTP/2 request is not forwarded and RST_STREAM with PROTOCOL_ERROR is sent back to the client.

Conditions:
HTTP/2 request with method OPTIONS and pseudo header :path value equal to something other than '*' (asterisk).

Impact:
HTTP/2 request with Method OPTIONS is limited to :path '*' only. Any other URIs are not forwarded to the server but are rejected with RST_STREAM with PROTOCOL_ERROR.

Workaround:
None.

Fix:
HTTP/2 request with Method OPTIONS now allows the URI to be something other than '*'. This request is not rejected, but is forwarded to the server.

883513-1 : Support for QUIC and HTTP/3 draft-27

Component: Local Traffic Manager

Symptoms:
The BIG-IP system supports QUIC and HTTP/3 draft-24 and draft-25. IETF released draft-27 in February 2020, and major browser vendors have announced they intend to widely deploy support for it, unlike previous drafts.

Conditions:
Browser requests draft-27.

Impact:
Connection downgrades to an older version, or fails if the browser cannot downgrade.

Workaround:
None.

Fix:
The BIG-IP system now supports draft-27. (The QUIC community skipped draft-26), has deleted draft-24 support from the implementation, and deprecates support for draft-25.

883105-1 : HTTP/2-to-HTTP/2 virtual server with translate-address disabled does not connect

Component: Local Traffic Manager

Symptoms:
If a virtual server is configured with both client-side and server-side using HTTP/2, and with translate-address disabled, the connection to the server-side does not succeed.

Conditions:
-- HTTP/2 profiles on both client-side and server-side, using an http-router profile.
-- Translate-address is disabled.

Impact:
Connections fail.

Workaround:
None.

882769-1 : Request Log: wrong filter applied when searching by Response contains or Response does not contain

Component: Application Security Manager

Symptoms:
When searching by "Response contains" or "Response does not contain", an incorrect filter is applied and displayed

Conditions:
This occurs in the GUI when selecting "Response contains" or "Response does not contain" filter

Impact:
You are unable to search by response in the GUI

Workaround:
There is no way to search in GUI, but you can search using REST API

Fix:
Correct filter applied and displayed for Response contains or Response does not contain filters

882713-3 : BGP SNMP trap has the wrong sysUpTime value

Component: TMOS

Symptoms:
The timestamp value of sysUpTime in SNMP traps reported by BGP is incorrect.

Conditions:
BGP connection with a peer flaps, and sends traps for the following:
bgpSnmpNotifyEstablished
bgpSnmpNotifyBackwardTransition

Impact:
The sysUpTime in the trap generated by BGP is incorrect.

Workaround:
None.

Fix:
Fixed an incorrect calculation of sysUpTime.

882633-2 : Active Directory authentication does not follow current best practices

Solution Article: K51213246

882557-2 : TMM restart loop if virtio platform specifies RX or TX queue sizes that are too large (4096 or higher)

Component: TMOS

Symptoms:
If the underlying virtio platform specifies RX and/or TX queue sizes that are 4096 or larger, the BIG-IP system cannot allocate enough contiguous memory space to accommodate this. Errors similar to these are seen in the tmm log files:

ndal Error: Failed to allocate 2232336 (2228224 + 4096 + 16) bytes
virtio[0:7.0]: Error: Failed to allocate descriptor chain
virtio[0:7.0]: Error: Failed allocate indirect rx buffers

Conditions:
-- Using a BIG-IP Virtual Edition (VE) with virtio drivers.
-- The underlying platform specifies RX and/or TX queue sizes of 4096 or larger.

Impact:
TMM continually restarts.

Workaround:
Use the sock driver instead of virtio.

In your BIG-IP VE VM execute the lspci command to determine which virtio driver is present:

# lspci -nn | grep -i eth | grep -i virtio
00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000]
00:04.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000]
00:0b.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000]

Configure a socket driver:

echo "device driver vendor_dev 1af4:1000 sock" > /config/tmm_init.tcl

Reboot the instance

882549-2 : Sock driver does not use multiple queues in unsupported environments

Component: Local Traffic Manager

Symptoms:
In some unsupported environments, the underlying sock driver uses only only 1 queue. You can confirm whether it does so by executing the tmctl command to check the rxq column (which shows 0):
tmctl -d blade -i tmm/ndal_rx_stats' and

You can verify this on the tx side as well.

Conditions:
This occurs in certain unsupported environments.

Note: When you run 'ethtool -l', you can see: 'command not supported'.

Impact:
When multi-q is present, the use of single queue can impact performance when using the sock driver.

Workaround:
Use other available drivers.

You can check the available drivers by executing the tmctl command:
tmctl -d blade -i tmm/device_probed

Fix:
Fixed an issue with the sock driver.

882189-6 : BIG-IP Edge Client for Windows vulnerability CVE-2020-5897

Solution Article: K20346072

882185-6 : BIG-IP Edge Client Windows ActiveX

Solution Article: K20346072

882157-1 : One thread of pkcs11d consumes 100% without any traffic.

Component: Local Traffic Manager

Symptoms:
One thread of pkcs11d consumes 100% without any traffic.

Conditions:
-- The BIG-IP system is licensed with NetHSM, and service pkcs11d is running.
-- The MCDP service is restarted.

Impact:
NetHSM configurations and statistics updates are not updated.

Workaround:
Restart the pkcs11d service:
tmsh restart sys service pkcs11d

Fix:
The system now watches for errors and prevents this error from occurring.

881757-1 : Unnecessary HTML response parsing and response payload is not compressed

Component: Application Security Manager

Symptoms:
When either DoS Application Profile or Bot Defense profiles are used, or a complex LTM policy is used, the Accept-Encoding request header is removed by the BIG-IP system, which causes the backend server to respond with uncompressed payload.

Second effect is that the Bot Defense Profile and L7 DoS profile are always, not conditionally, considered internally as a profile that modifies a body that satisfies HTTP profile chunking configuration 'sustain' (default mode) triggering client-side chunking. This causes a response in the server-side that is unchunked to be always chunked in client-side with the mode set to 'sustain'.

Conditions:
One of these options:
-- Bot Defense Profile is associated with the Virtual Server.
-- DoS Profile is associated with the Virtual Server and has Application (L7) enabled.
-- Policy is associated with the Virtual Server and has complex LTM Policy: multiple Policies, or additional rules.

Impact:
-- Response payload sent by the backend server is uncompressed.
-- Performance impact caused by response parsing.

Workaround:
For version 15.1.0 and later, you can use the following workaround:

Disable the option for modification of Referer header:
tmsh modify sys db .inject_referrer_hook value false

Note: Using this brings back the impact of ID792341 (see https://cdn.f5.com/product/bugtracker/ID792341.html).

For versions earlier than 15.1.0, there is no workaround.

Fix:
The system no longer removes the Accept-Encoding header and no longer parses response payload if not needed based on configuration.

881641 : Errors on VPN client status window in non-English environment

Component: Access Policy Manager

Symptoms:
If Network Access resource or AppTunnel resource is being accessed using user interface language other than English, JavaScript errors may be shown in VPN client status window.

Conditions:
- Customization Type of Access policy is Modern
- Access Policy with languages other than English
- Network Access resource or AppTunnel resource assigned to this Access Policy
- standalone VPN client in non-English environment

Impact:
VPN connection or AppTunnel connection cannot be established.

Fix:
Now standalone VPN client can work correctly in non-English environment

881445-7 : BIG-IP Edge Client for Windows vulnerability CVE-2020-5898

Solution Article: K69154630

881317-6 : BIG-IP Edge Client for Windows vulnerability CVE-2020-5896

Solution Article: K15478554

881293-6 : BIG-IP Edge Client for Windows vulnerability CVE-2020-5896

Solution Article: K15478554

880789-3 : ASMConfig Handler undergoes frequent restarts

Component: Application Security Manager

Symptoms:
Under some settings and load, the RPC handler for the botd process restarts frequently, causing unnecessary churn and message-cluttered logs.

Conditions:
-- Bot protection is enabled.
-- A high volume of bot attacks are handled.

Impact:
The RPC handler for the botd process restarts frequently, causing unnecessary churn and noisy logs

Workaround:
None.

Fix:
The botd handler is now restored to a more robust process lifecycle.

880753-3 : Possible issues when using DoSL7 and Bot Defense profile on the same virtual server

Solution Article: K38157961

Component: Application Security Manager

Symptoms:
When DoSL7 and Bot Defense profiles are configured together on the same Virtual Server, some requests might not be handled by the Bot Defense profile.

Conditions:
-- DoSL7 profile is attached to the virtual server (with Application).
-- Bot Defense profile is attached to the virtual server.
-- Another security module is attached to the virtual server (WebSafe, MobileSafe, ASM).

Impact:
Some requests might not be processed by the Bot Defense profile.

Workaround:
Disable dosl7.idle_fast_path:
tmsh modify sys db dosl7.idle_fast_path value disable

Fix:
The mechanism which caused this issue is now correctly enabled.

880625-3 : Check-host-attr enabled in LDAP system-auth creates unusable config

Component: TMOS

Symptoms:
When configuring system auth to use LDAP, if you set check-host-attr to enabled, the resulting /config/bigip/pam.d/ldap/system-auth.conf that is generated cannot be parsed by nslcd.

Conditions:
-- Configuring system auth to use LDAP.
-- Setting check-host-attr to enabled.

Impact:
LDAP-based auth does not function.

Workaround:
None.

880361-1 : iRules LX vulnerability CVE-2021-22973

Solution Article: K13323323

880289 : FPGA firmware changes during configuration loads★

Component: TMOS

Symptoms:
FPGA firmware on DDoS Hybrid Defender products might be changed unexpectedly during a configuration load or license update.

Conditions:
Configuration load or license update.

Impact:
FPGA firmware changes unexpectedly, reboot might be required to stabilize.

Workaround:
None.

880165-2 : Auto classification signature update fails

Component: TMOS

Symptoms:
During classification update, you get an error:

"Error: Exception caught in script. Check logs (/var/log/hitless_upgrade.log) for details"

An additional diagnostic is that running the command "/usr/bin/crt_cache_path" reports "none".

Conditions:
This is encountered while updating the classification signatures or the protocol inspection updates.

It can occur when something goes wrong during license activation, but license activation ultimately succeeds.

Impact:
When this issue occurs, auto classification signature update will fail.

Workaround:
You may be able to recover by re-activating the BIG-IP license via tmsh.

880001-1 : TMM may crash while processing L4 behavioral DoS traffic

Solution Article: K58290051

879829-2 : HA daemon sod cannot bind to ports numbered lower than 1024

Component: TMOS

Symptoms:
If the network high availability (HA) daemon sod is configured to use a port number that is lower than 1024, the binding fails with a permission-denied error. This affects binding to ports on both management and self IP addresses.

Example log messages:
/var/log/ltm
err sod[2922]: 010c003b:3: bind fails on recv_sock_fd addr 1.2.3.4 port 1023 error Permission denied.
notice sod[2992]: 010c0078:5: Not listening for unicast failover packets on address 1.2.3.4 port 1023.

/var/log/auditd/audit.log
type=AVC msg=audit(1578067041.047:17108): avc: denied { net_bind_service } for pid=2922 comm="sod" capability=10 scontext=system_u:system_r:f5sod_t:s0 tcontext=system_u:system_r:f5sod_t:s0 tclass=capability

Conditions:
-- high availability (HA) daemon sod is configured to use a port lower than 1024 for network high availability (HA) operations.

-- Version 13.1.0 or later.

Impact:
A network high availability (HA) connection configured to use a port number lower than 1024 on an affected version does not function.

Workaround:
Change the port number to 1024 or higher.

Note: UDP port 1026 is the default.

879777-3 : Retreive browser cookie from related domain instead of performing another Bot Defense browser verification challenge

Component: Application Security Manager

Symptoms:
After configuring the "validate upon request" option in "Cross Domain Requests" in a Bot Defense profile, JS challenges continue to be sent.

Conditions:
-- Bot Defense profile is enabled
-- "Cross Domain Request":"validate upon request" option is enabled
-- A browser navigates to a qualified (HTML) page from a related domain.

Impact:
Browser receives another JS challenge, instead of retrieving the cookie from the related domain. This causes extra latency for the client.

Workaround:
Use "validate in a bulk" option.

Fix:
Retrieving the cookie from the related domain even if the page is qualified.

879745-4 : TMM may crash while processing Diameter traffic

Solution Article: K82530456

879413-1 : Statsd fails to start if one or more of its *.info files becomes corrupted

Component: Local Traffic Manager

Symptoms:
If one of the *.info files in /var/rrd becomes corrupted, statsd fails to load it and ends up restarting continuously. You see the following messages in /var/log/ltm:

-- err statsd[766]: 011b020b:3: Error 'Success' scanning buffer '' from file '/var/rrd/throughput.info'.
-- err statsd[766]: 011b0826:3: Cluster collection start error.Exitting.

Conditions:
Corrupted *.info file in /var/rrd.

Impact:
Stats are no longer accurate.

Workaround:
It might take multiple attempts to repair the *.info files. You might have to run the following command several times for different .info files, where <filename> is the actual name of the file (e.g., 'throughput.info'):

found=0;while [ $found != 1 ]; do filetype=`file throughput.info | cut -d " " -f2`;if [[ $filetype != "ASCII" ]]; then rm -f <filename>.info; else grep CRC <filename>.info;found=1;fi; done

Fix:
The system now detects corrupt *.info files and deletes and recreates them.

879409-3 : TMM core with mirroring traffic due to unexpected interface name length

Component: Local Traffic Manager

Symptoms:
TMM cores.

Conditions:
-- Platform: B4400 Blade (BIG-IP VPR-B4450N).
-- High availability (HA) mirroring is set up.
-- Provisioned modules: LTM, AFM.
-- HA mirroring messages are received with unexpected interface name length.

Impact:
Processing of invalid length can cause memory corruption. The tmm process generates a core. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
The system now validates the length of the interface name before processing the HA message at the receiver side and ignores the HA message if the interface name length is wrong.

879405-1 : Incorrect value in Transparent Nexthop property

Component: TMOS

Symptoms:
Incorrect value in Transparent Nexthop property on virtual server page with assigned VLAN after a change is made via the DOS menu then another change is made on the advanced menu.

Conditions:
Starting with a working config if the admin makes changes
From the DoS menu
- DoS configuration -> protected objects -> protected objects list
- Select virtual server (eg: test_vpn_443) -> open Network & General -> set enabled on vlans to "test" and Transparent nexthop to "test" -> save

# Now make a change that cannot be made via the DoS menu

From the Advanced menu
- Local Traffic -> Virtual server -> Virtual server list -> select virtual server (test_vpn_443)
- Note that "Transparent Nexthop" is set to "none" despite being set to "test" in bigip.conf and DoS menu
- Change clientssl profile (or whatever change) -> update

# Now go back and check the impact

From the DoS menu
- DoS configuration -> protected objects -> protected objects list
- Select virtual server (eg: test_vpn_443) -> open Network & General -> you can see that Transparent nexthop has been set to "none"

At this point connectivity could be broken and transparent nexthop will need to be reconfigured via the DoS menu.

Impact:
Incorrect value shown in Transparent Nexthop property field. which can cause connectivity to be lost between the affected locations.

Workaround:
There are multiple possible options:
either:
Use tmsh to complete the action successfully.
or
Do not configure the same VLAN group for the VLAN list and Transparent Next Hop
or
use the advanced menu as it performs as expected.

879401-1 : Memory corruption during APM SAML SSO

Solution Article: K90423190

Component: Access Policy Manager

Symptoms:
During processing of SAML SSO single logout (SLO) requests, a block of tmm memory may become corrupted. You might experience several types of unexpected actions, including a TMM restart and core-file generation.

Conditions:
-- BIG-IP system is configured as SAML SP.
-- External SAML IdP sends SLO request.

Impact:
Various possible negative effects, including TMM core. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
BIG-IP systems configured as SAML SP no longer cause memory corruption when handling certain traffic.

879189-1 : Network map shows 'One or more profiles are inactive due to unprovisioned modules' in Profiles section

Component: TMOS

Symptoms:
Network map shows error message: One or more profiles are inactive due to unprovisioned modules.

Conditions:
-- ASM provisioned.
-- A profile is attached to a virtual server, but the module supporting the profile is not provisioned.

Impact:
The Network Map shows an error message.

Workaround:
Provision the module that supports the profile.

Fix:
The button text has been modified to be more informative.

879025-2 : When processing TLS traffic, LTM may not enforce certificate chain restrictions

Solution Article: K72752002

878925-2 : SSL connection mirroring failover at end of TLS handshake

Component: Local Traffic Manager

Symptoms:
In some cases, HTTP requests may fail if system failover occurs immediately after the TLS handshake finishes.

Conditions:
-- System failover to standby device with SSL connection mirroring.
-- Failover occurs immediately after the TLS handshake completes but before the HTTP request.

Impact:
Connection might fail the HTTP request; in some cases, the server may reset HTTP 1.0 requests.

Workaround:
None.

Fix:
System now updates the high availability (HA) state at end of the TLS handshake to prevent this issue if failover occurs at end of the handshake but before client/server data.

878893-3 : During system shutdown it is possible the for sflow_agent to core

Component: TMOS

Symptoms:
The shutdown sequence of the sflow_agent can include a timeout waiting for a response that results in an assert and core file.

Conditions:
BIG-IP reboot can cause the sflow_agent to core.

Impact:
There is a core file in the /var/core directory after a system reboot.

Fix:
Fixed an issue causing a core of sflow_agent during shutdown.

877145-4 : Unable to log in to iControl REST via /mgmt/toc/, restjavad throwing NullPointerException

Component: TMOS

Symptoms:
You are unable to log in to iControl REST via /mgmt/toc/.
Also a NullPointerException is logged to /var/log/restjavad log.

Conditions:
This can be encountered intermittently while using iControl REST.

Impact:
Login failure.

Workaround:
None.

Fix:
Fixed an issue related to authenticating to the iControl REST endpoint /mgmt/TOC.

877109-1 : Unspecified input can break intended functionality in iHealth proxy

Solution Article: K04234247

876957-1 : Reboot after tmsh load sys config changes sys FPGA firmware-config value

Component: TMOS

Conditions:
Running either of the following commands:

tmsh load sys config
/etc/init.d/fw_update_post reload

Impact:
Firmware update fails.

Fix:
Added the reload option in fw_update_post service file.

876953-2 : Tmm crash while passing diameter traffic

Component: Service Provider

Symptoms:
Tmm crashes with the following log message.

-- crit tmm1[11661]: 01010289:2: Oops @ 0x2a3f440:205: msg->ref > 0.

Conditions:
This can be encountered while passing diameter traffic when one or more of the pool members goes down and retransmissions occur.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
Fixed a tmm crash while passing diameter traffic.

876937-3 : DNS Cache not functioning

Component: TMOS

Symptoms:
DNS queries are not being cached on the BIG-IP device.

Conditions:
-- DNS cache is enabled (System :: Configuration : Device : DNS Cache).
-- Device receives DNS queries.

Impact:
DNS queries are forwarded, but the BIG-IP system does not cache them.

Workaround:
None.

Fix:
DNS queries are now cached when DNS Cache is enabled.

Behavior Change:
Full DNS cache functionality has been restored. This results in performance degradation. You might notice it in OCSP performance, when compared to releases in which full DNS cache functionality is not present.

By default, DNS cache is disabled. To recapture performance, enable DNS cache.

876805-3 : Modifying address-list resets the route advertisement on virtual servers.

Component: TMOS

Symptoms:
If you modify an address list associated with a virtual server, any modifications done to virtual addresses are lost when the address list is modified.

This issue has also been shown to cause inconsistent ICMP response behavior when 'selective' mode is used.

Conditions:
This occurs in the following scenario:
-- Create an address list.
-- Assign it to a Virtual Server.
-- Modify some or all virtual addresses.
-- Modify the address list.

Impact:
-- Modifications made to virtual addresses are lost.
-- Possible ICMP response issues when 'selective' mode is used (e.g., responses when all pool members are disabled, or no responses when pool members are enabled).

Workaround:
None

Fix:
Virtual address properties are now preserved when an address list is modified.

876801-5 : Tmm crash: invalid route type

Component: Local Traffic Manager

Symptoms:
Tmm crashes. /var/log/tmm contains the log entries:

tmm1: notice panic: invalid route type
tmm1: notice ** SIGFPE **

Conditions:
The issue is intermittent.

1. There is more than one route domain in the parent-child relationship.
2. There are routing entries for the parent route-domain good enough to be selected as an egress point for the routing object (for instance, pool member) which is from child route domain.
3. The routing entry from a parent route domain is selected as an egress point for the object from the child route domain.
4. A new routing entry for child route domain is added.

Impact:
TMM crashes. Traffic disrupted while tmm restarts.

Workaround:
There is no way to workaround a problem, but there is a safe way to add and delete routes without putting a BIG-IP into a state where it could encounter this issue.

Safe way to add/delete a route.
1) Add routes to child route domains first, then to parent route domain.
2) Delete routes from parent route domain first, then from child route domain.

Fix:
Routing objects are now forced to reselect a routing entry after a new route is added to the child route domain's routing table and it's not causing a TMM crash anymore.

876581-2 : JavaScript engine file is empty if the original HTML page cached for too long

Component: Fraud Protection Services

Symptoms:
JavaScript engine file is empty.

Conditions:
Original HTML page with FPS injected content is cached for too long due to some caching headers (e.g., ETag), so the JavaScript engine link becomes invalid.

Impact:
No FPS protection for that HTML page.

Workaround:
You can use either workaround:

-- Use an iRule to disable caching for protected HTML pages.

-- Set caching time for protected HTML pages to the same value as the datasync tables regeneration timer according to the active datasync profile (default value is two 2 days).

Fix:
FPS now also removes ETag headers from protected HTML pages.

876393-1 : General database error while creating Access Profile via the GUI

Component: Access Policy Manager

Symptoms:
While trying to create an Access profile, the GUI reports a general database error. There are errors in /var/log/tomcat:

profiles.ProfileUtils$SettingsHandler:error - java.sql.SQLException: Column not found: SOURCE in statement [INSERT into
profile_access

Conditions:
This occurs when you try to create an Access Profile of type SSO from the GUI.

Impact:
You are unable to create the profile using the GUI.

Workaround:
You can create the Access Profile using TMSH.

tmsh create access access_test_sso type sso accept-languages add { en } sso-name sso_test1

Fix:
Access Profile of type SSO can now be created and edited from the GUI.

876353-1 : iRule command RESOLV::lookup may cause TMM to crash

Solution Article: K03125360

876077-1 : MRF DIAMETER: stale pending retransmission entries may not be cleaned up

Component: Service Provider

Symptoms:
DIAMETER router messages queued for retransmission may not be deleted until the connection closes.

Conditions:
-- Diameter transmission setting is enabled and a DIAMETER message is queued for retransmission.
-- The retransmission for the message is not triggered

Impact:
The memory used to hold the copy of the message in the retransmission queue is leaked.

Workaround:
None.

Fix:
Stale pending retransmission entries are cleaned up properly.

875401-2 : PEM subcriber lookup can fail for internet side new connections

Component: Policy Enforcement Manager

Symptoms:
PEM subcriber lookup can fail for internet side new connections, as PEM might use the remote address to look up the session, which is not the subscriber.

Conditions:
-- PEM enabled and configured
-- Subscriber session has multiple IP's
-- Each IP lands on a different tmm

Impact:
PEM subscriber lookup can fail on the internet side

Workaround:
No workaround.

Fix:
PEM subcriber lookup now always succeeds for internet side new connections,

874949-1 : TMM may crash if traffic is run through APM per-request policy containing an empty variable assign agent.

Component: Access Policy Manager

Symptoms:
TMM may crash if traffic is run through APM per-request policy containing an empty variable assign agent.

Conditions:
Client traffic is run through virtual server with APM per-request policy that contains empty variable assign agent.

Impact:
TMM may crash. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
When client traffic is run through virtual server with APM per-request policy that contains empty variable assign agent, TMM will not crash.

874753-3 : Filtering by Bot Categories on Bot Requests Log shows 0 events

Component: Application Security Manager

Symptoms:
A log that has 'Browser Automation’ as the ‘Bot Category’ exists.

When filtering for only Bot Category: Browser Automation, nothing Shows up.

Conditions:
-- ASM provisioned.
-- Filtering by Bot Categories on Bot Requests Log

Impact:
Legitimate requests being blocked but cannot filter on the category to narrow down their focus.

Workaround:
None.

Fix:
Filtering by Bot Categories on Bot Requests Log is now fixed on the GUI page.

874677-1 : Traffic Classification auto signature update fails from GUI★

Component: Traffic Classification Engine

Symptoms:
Beginning in BIG-IP software v14.1.0, Traffic Classification auto signature update fails when performed using the GUI.

The system reports an error:
Error: Exception caught in the script. Check logs (/var/log/hitless_upgrade.log) for details.

Conditions:
Performing Traffic Classification auto signature update using the GUI.

Impact:
Fails to update the classification signature automatically.

Workaround:
You can use either of the following:

-- Perform Traffic Classification auto signature update operations from the CLI.
-- Use the GUI to manually update Traffic Classification signatures.

Fix:
Fixed the hitless upgrade script to download the IM packages from the EDSM server for point releases.

873469-2 : APM Portal Access: Base URL may be set to incorrectly

Solution Article: K24415506

872965-1 : HTTP/3 does not support draft-25

Component: Local Traffic Manager

Symptoms:
Clients attempting to connect with QUIC version 25 and ALPN h3-25 are unable to connect.

Conditions:
An end user client attempts to connect using QUIC version 25 and ALPN h3-25.

Impact:
Attempts to use HTTP/3 with some clients may fail.

Workaround:
None.

Fix:
The BIG-IP system now supports draft-24 and draft-25.

872673-1 : TMM can crash when processing SCTP traffic

Solution Article: K26464312

872645-2 : Protected Object Aggregate stats are causing elevated CPU usage

Component: Advanced Firewall Manager

Symptoms:
Due to a large number of tables containing 'Protected Object Aggregate stats', the merged daemon might cause elevated CPU usage on odd-numbered CPU cores.

Conditions:
AFM, ASM, or DoS features are provisioned.

Impact:
Elevated CPU usage on odd-numbered cores caused by merged daemon.

Workaround:
None.

Fix:
Protected Object Aggregate stats no longer cause elevated CPU usage.

872049-1 : Incorrect DoS static vectors mitigation threshold in multiplier based mode after run relearn thresholds command

Component: Advanced Firewall Manager

Symptoms:
Value in mitigation thresholds are above infinite value (4294967295)

Conditions:
Multiplier based mitigation mode for Dos static vectors after run relearn thresholds command

Impact:
Incorrect display value for DoS thresholds in GUI and tmctl

Fix:
Do not apply multiplayer for infinite threshold value (4294967295).

871985-1 : No hardware mitigation for DoS attacks in auto-threshold mode with enabled attacked destinations detection

Component: Advanced Firewall Manager

Symptoms:
There are no hardware mitigation for DoS attacks

Conditions:
Auto-threshold mode and detection for attacked destinations should be activate for DoS static vector

Impact:
DoS attack mitigation performed only by software

Fix:
Improved search in already hardware offloaded entities

871905-2 : Incorrect masking of parameters in event log

Solution Article: K02705117

Component: Application Security Manager

Symptoms:
When using CSRF protection, sensitive parameters values can be masked incorrectly in the event log.

Conditions:
The request contains a CSRF token and sensitive parameters.

Impact:
Sensitive parameters values can be masked incorrectly in the event log.

Workaround:
None.

Fix:
Sensitive parameters values are now correctly masked in the event log when request contains CSRF token.

871761-1 : Unexpected FIN from APM virtual server during Access Policy evaluation if XML profile is configured for VS

Component: Access Policy Manager

Symptoms:
APM virtual server user's GUI (e.g., 'Logon page') cannot be rendered by browsers.

Conditions:
This issue is encountered when an XML profile is configured for the APM virtual server.

Impact:
APM end users are unable to get a logon page.

Workaround:
Disable the XML profile for the APM virtual server.

Fix:
There is no unexpected traffic interruption from the APM virtual server when the XML profile is configured for the virtual server.

871657-1 : Mcpd crash when adding NAPTR GTM pool member with a flag of uppercase A or S

Component: TMOS

Symptoms:
Mcpd restarts and produces a core file.

Conditions:
This can occur while adding a pool member to a NAPTR GTM pool where the flag used is an uppercase 'A' or 'S' character.

Impact:
Mcpd crash and restart results in high availability (HA) failover.

Workaround:
Use a lowercase 'a' or 's' as the flag value.

Fix:
Mcpd no longer crashes under these conditions. The flag value is always stored in lowercase regardless of the case used as input in the REST call or tmsh command, etc.

871653-1 : Access Policy cannot be created with 'modern' customization

Component: Access Policy Manager

Symptoms:
Per-Request Policy (PRP) Access Policy with Customization Type set to Modern cannot be created due to internal error.

Conditions:
Creating a PRP Access Policy with Customization Type set to Modern.

Impact:
Administrator cannot use modern customization.

Workaround:
1. In bigip.conf find the following line:

     apm policy customization-source /Common/standard { }

2. Add the following line:

     apm policy customization-source /Common/modern { }

3. Save the changes.

4. Load the config:

     tmsh load sys config

Fix:
Now modern customization can be used for any Access Policy.

871633-1 : TMM may crash while processing HTTP/3 traffic

Solution Article: K61367237

871561-5 : Software installation on vCMP guest fails with '(Software compatibility tests failed.)' or '(The requested product/version/build is not in the media.)'★

Component: TMOS

Symptoms:
Software upgrades to an Engineering Hotfix on a vCMP guest might fail with one of the following messages:

failed (Software compatibility tests failed.)
failed (The requested product/version/build is not in the media.)

The failed installation is also indicated by log messages in /var/log/ltm similar to:

-- info lind[5500]: 013c0007:6: Install complete for volume=HD1.2: status=failed (Software compatibility tests failed.)
-- info lind[5500]: 013c0007:6: Install complete for volume=HD1.2: status=failed (The requested product/version/build is not in the media.)

Conditions:
This may occur when performing a software upgrade to an engineering hotfix on a vCMP guest running affected versions of BIG-IP software, when the software images are present on the vCMP host.

This can be accomplished by running the following command from the vCMP guest console:

tmsh install sys software block-device-hotfix <hotfix-image-name> volume <volume.name>

Impact:
Unable to perform software installations on vCMP guests using installation media located on the vCMP host.

Workaround:
Option 1:
===========
Make sure that the .iso files for both base image and engineering hotfix are copied to the vCMP guest (under /shared/images) before starting the installation. If installing the software from the command line, use syntax similar to the following:

tmsh install sys software hotfix <hotfix-image-name> volume <volume.name>

Option 2:
===========
Even if the engineering hotfix installation has failed, the base image should still have been installed properly. You can restart the vCMP guest and perform a hotfix installation on top of already installed base image, using syntax similar to the following:

tmsh install sys software hotfix <hotfix-image-name> volume <volume.name>

Option 3:
===========
Even if the engineering hotfix installation has failed, the base image should still have been installed properly. Ensure there is copy of the engineering hotfix image locally within the vCMP Guest.

Then restart the lind service on the vCMP Guest:
  tmsh restart sys service lind

If running the vCMP Guest on multiple slots, you may need to restart lind on all slots. From the primary slot on the vCMP Guest, run:
  clsh tmsh restart sys service lind

The hotfix installation should begin again, this time using the hotfix from within the /shared/images/ location on the vCMP Guest.

Option 4:
===========
Manually eject the CD from the vCMP guest's virtual CD drive, and then restart lind. On the vCMP Guest:

1. Confirm the wrong ISO image is still locked (inserted in the CD drive):
  isoinfo -d -i /dev/cdrom

Note: Pay attention to the volume ID in the output from within the vCMP guest.

2. Unlock (eject) the image:
  eject -r -F /dev/cdrom && vcmphc_tool -e

3. Verify the CD drive is now empty:
  isoinfo -d -i /dev/cdrom

The output should report an error that includes:
<...> Sense Code: 0x3A Qual 0x00 (medium not present) Fru 0x0 <…>

4. Restart lind:
  tmsh restart sys service lind

If running the vCMP Guest on multiple slots, you may need to restart lind on all vCMP Guest slots. From the primary slot on the vCMP Guest, run:
  clsh tmsh restart sys service lind

Fix:
Software upgrades on a vCMP guest complete successfully even when the software images are present on the vCMP hypervisor.

870957-4 : "Security ›› Reporting : ASM Resources : CPU Utilization" shows TMM has 100% CPU usage

Component: Application Visibility and Reporting

Symptoms:
TMM CPU utilization around 100 percent under Security ›› Reporting : ASM Resources : CPU Utilization.

Conditions:
No special conditions. Only viewing at the stats of TMM CPU in 'Security ›› Reporting : ASM Resources : CPU Utilization'. They will always be in wrong scale, but when the TMM has ~1% CPU usage, it will be presented as 100% CPU usage.

Impact:
Wrong scale is presented and might cause machine's state to be interpreted wrongly.

Workaround:
1. Backup /etc/avr/monpd/monp_asm_cpu_info_measures.cfg file.
2. Run the following:
    $ sed -i 's|tmm_avg_cpu_util)/(count(distinct time_stamp)|tmm_avg_cpu_util)/(count(distinct time_stamp)*100|g' /etc/avr/monpd/monp_asm_cpu_info_measures.cfg
3. Compare the backup file to /etc/avr/monpd/monp_asm_cpu_info_measures.cfg:
    Make sure that there are two lines modified, and that the modification is multiplying with 100 the denominator (i.e., actually dividing the TMM value with 100).
4. To make those changes take affect, run the following command:
    $ bigstart restart monpd

Fix:
Dividing the TMM value with 100 to fit correct scale.

870389-3 : Increase size of /var logical volume to 1.5 GiB for LTM-only VE images

Component: TMOS

Symptoms:
The /var logical volume size of 950 MiB for LTM-only BIG-IP Virtual Edition (VE) images may be too small for some deployments. This can result in result in loss of SSH access.

Conditions:
This applies to deployments that use declarative onboarding for configuration.

Impact:
Complex declarative onboarding configurations may fill the /var logical volume. You are locked out because of the too-small volume.

Workaround:
The workaround is to manually extend the /var logical volume.

For more information, see K14952: Extending disk space on BIG-IP VE :: https://support.f5.com/csp/article/K14952.

Fix:
The size of the /var logical volume was increased from 950 MiB to 1.5 GiB for LTM-only VE images.

Behavior Change:
The size of the /var logical volume was increased from 950MiB to 1.5GiB for LTM-only Virtual Edition images.

870385-5 : TMM may restart under very heavy traffic load

Component: Advanced Firewall Manager

Symptoms:
TMM occasionally restarts when running heavy workloads. The crash is a timing-related issue between different tmm threads, and thus happens only occasionally.

Conditions:
-- AFM is provisioned with DoS functionality.
-- The BIG-IP system is under heavy workload.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
TMM no longer restarts under these conditions.

870381-1 : Network Firewall Active Rule page does not load

Component: Advanced Firewall Manager

Symptoms:
In the BIG-IP GUI, the Network Firewall Active Rule page is blank and nothing is visible.

Conditions:
This occurs when viewing the Active Rule page.

Impact:
You are unable to view active Rules in GUI.

Workaround:
None.

Fix:
Network Firewall Active Rule page is now visible in the GUI.

870273-5 : TMM may consume excessive resources when processing SSL traffic

Solution Article: K44020030

869653-1 : VCMP guest secondary blade restarts when creating multiple APM profiles in a single transaction

Component: Access Policy Manager

Symptoms:
VCMP secondary blade restarts when creating more than one access profile in a transaction.

Conditions:
- In one transaction
- Create more than one access profiles

Impact:
Blade restarts and traffic is disrupted.

Fix:
All VCMP blades will continue to work when creating more than one access profile in a transaction.

869361-1 : Link Controller inbound wide IP load balancing method incorrectly presented in GUI when updated

Component: Global Traffic Manager (DNS)

Symptoms:
Load balance methods for Link Controller inbound wide IP are always set to default values when the load balancing method is updated through GUI.

Conditions:
-- Multiple inbound wide IPs are configured;
-- Load balancing methods are updated through GUI once.

Impact:
Unable to manage wide IPs through the GUI.

Workaround:
Use tmsh to manage Inbound WideIPs.

869049-4 : Charts discrepancy in AVR reports

Component: Application Visibility and Reporting

Symptoms:
Discrepancy in AVR reports. When filtering on the 'last month' interval, a specific number of total requests per virtual server is shown. Then when filtering to the present day from a date that encompasses that month, a lower number is reported.

Conditions:
-- Number of records in database exceeds the maximum mount of data that AVR can aggregate between different table-resolutions.
-- There are metrics on the report other than the default one (hits-count).

Impact:
Stats on DB get corrupted and incorrect.

Workaround:
None.

Fix:
Aggregation store-procedure is now fixed.

868781-1 : TMM crashes while processing MRF traffic

Component: Service Provider

Symptoms:
TMM panic occurs when processing overflowed the MPI messages due to incorrectly calculated master key length:

../dev/mpi/mpi_mem.c:1129: Assertion "tail not past head" failed.

Conditions:
-- Message Routing Framework (MRF) traffic of type Diameter and SIP.

-- Auto-initialization enabled on peer, but can happen without auto-initialization enabled, just at a less-predictable rate.

Impact:
Tmm crashes. Traffic disrupted while tmm restarts.

Workaround:
None

Fix:
TMM crash no longer occurs under these conditions.

868721-1 : Transactions are held for a long time on specific server related conditions

Component: Application Security Manager

Symptoms:
Long request buffers are kept around for a long time in bd.

Conditions:
-- The answer_100_continue internal parameter is turned off (non default) or the version is pre 15.1
-- The server closes the connection while request packets are accumulated.

Impact:
The long request buffers are consumed. You may see a "Too many concurrent long requests" log message and requests with large content lengths will get reset.

Workaround:
There is no workaround that can be done from ASM configuration.
If possible, change the server application settings to wait longer for the request payload in 100-continue request or change the client side application to not work with 100-continue.

Fix:
Add a check for this scenario so transactions will be released correctly.

868641-3 : Possible TMM crash when disabling bot profile for the entire connection

Component: Application Security Manager

Symptoms:
When using an iRule to disable bot profile, and causing it to be disabled (for the entire connection) during a CAPTCHA challenge -- TMM will crash.

Conditions:
-- Bot Defense profile is attached to the Virtual Server, with a CAPTCHA mitigation.
-- An iRule is attached to the virtual server, which disables bot profile.
-- Sending a request that is responded with a CAPTCHA, then sending (in the same connection), a request that disable the bot profile, and then answering the CAPTCHA.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
When using an iRule to disable bot defense profile on certain conditions, add an "else" clause for re-enabling the profile, taking note that all ::disable iRule commands are effective for the entire connection, and not just the transaction.

Fix:
TMM no longer crashes when disabling bot defense profile for the entire connection.

868381-1 : MRF DIAMETER: Retransmission queue unable to delete stale entries

Component: Service Provider

Symptoms:
DIAMETER messages queued for retransmission that do not receive answer responses may be missed by the sweeper logic and not be deleted until the connection closes.

Conditions:
-- A DIAMETER message is queued for retransmission without a timeout to tigger retransmission.
-- No answer response is received.

Impact:
The memory used to hold the copy of the message in the retransmission queue is leaked.

Workaround:
None.

Fix:
The retransmission queue has been fixes so all stale messages are deleted as expected.

868349-1 : TMM may crash while processing iRules with MQTT commands

Solution Article: K62830532

868209-3 : Transparent vlan-group with standard virtual-server does L2 forwarding instead of pool selection

Component: Local Traffic Manager

Symptoms:
When BIG-IP is configured with transparent vlan-group and traffic is matching a standard or fastl4 virtual-server and traffic hitting BIG-IP does not have a destination MAC address that belongs to BIG-IP - traffic will be L2 forwarded and pool member selection will not happen.

This defect will also cause active FTP data connections over vlan-group to fail.

Conditions:
All conditions must be met:
- Traffic over transparent vlan-group.
- Standard or fastl4 virtual-server.
- Traffic has a destination MAC address that does not belong to BIG-IP.

OR

- Standard virtual server with FTP profile is configured.
- Active FTP session is in use.
- Traffic flows over vlan-group.

Impact:
Server-side connections will fail.

Workaround:
Use opaque vlan-group instead.
OR
disable db variable connection.vgl2transparent (15.0+)

868097-3 : TMM may crash while processing HTTP/2 traffic

Solution Article: K58494243

868053-3 : Live Update service indicates update available when the latest update was already installed

Component: Application Security Manager

Symptoms:
When downloading and installing the latest ASU file manually the Live Update indicator located at the top left of the screen still indicates that there is a new update available.

Conditions:
-- The Live Update scheduler is not in auto mode (System :: Software Management :: Live Update :: Installation of Automatically Downloaded Updates = Disabled).
-- Upload and update the latest ASU file manually.

Impact:
The Live Update indicator continues to indicate on a new update though the latest file was installed.

Workaround:
None.

Fix:
The Live Update service no longer displays a false message regarding updates available.

867825-4 : Export/Import on a parent policy leaves children in an inconsistent state

Component: Application Security Manager

Symptoms:
When overwriting a parent policy with import/replace, elements from the parent policy that were deleted remain in the child policies.

Conditions:
-- A parent policy exists with a child policy that inherits a section in which new configuration elements can be created in the parent policy (like ip address exceptions).
-- An element is deleted from the parent policy, and then the parent policy is exported.
-- The parent policy is then imported to replace a parent policy on a different device to perform the same changes on its children.

Impact:
The children on the different devices are left unexpectedly in different states.

Fix:
Import/Replace for a parent policy for sections that remain inherited will now delete elements that were removed from the parent policy instead of disinheriting them.

867793-1 : BIG-IP sending the wrong trap code for BGP peer state

Component: TMOS

Symptoms:
When BGP peer is going down, the BIG-IP system sends the wrong 'bgpPeerState: 6(established)' with its SNMP trap.

Conditions:
-- BIG IP system is connected with a Cisco router to verify the traps.
-- BGP peer between the BIG-IP system and the Cisco router is going down.
-- Both devices release an SNMP trap.

Impact:
The BIG-IP system sends the wrong code with its SNMP trap. It should be 'bgpPeerState: idle(1)' when the peer is not connected.

Workaround:
None.

Fix:
BIG-IP now sends the correct trap code for BGP peer state.

Behavior Change:
The bgpPeerState for bgpBackwardTransNotification now reports the state after the state machine transition, i.e., the state into which the system is transitioning. In earlier releases, it reported the state prior to the state machine transition, which would always report idle because all backwards state transitions are into idle.

867373-4 : Methods Missing From ASM Policy

Component: Application Security Manager

Symptoms:
If the ASM http-methods are missing from the MCP configuration, importing an XML ASM policy creates a policy that has no allowed methods and will block all traffic.

Conditions:
-- BIG-IP system configuration is loaded without the required asm_base.conf.
-- An XML ASM policy is loaded.

Impact:
All traffic is blocked for the policy.

Workaround:
Recreate the required methods (GET, POST, etc.) in the policy.

Fix:
Lack of defined ASM http-methods in MCP no longer affects policy loading.

867181-1 : ixlv: double tagging is not working

Component: TMOS

Symptoms:
If a VLAN tag is configured on the Virtual Function in the host, and the BIG-IP guest is configured to use a tagged VLAN, packets that egress the host on this VLAN contain only the VLAN tag configured on the host (i.e. the BIG-IP's VLAN tag is lost).

Conditions:
- Using a BIG-IP VE.
- A VLAN tag is configured on both the host VF and on the BIG-IP.

Impact:
The BIG-IP's VLAN tag is lost.

Fix:
Both VLAN tags are now present in packets.

867013-2 : Fetching ASM policy list from the GUI (in LTM policy rule creation) occasionally causes REST timeout

Component: TMOS

Symptoms:
You are unable to associate new ASM policies to LTM policies, due to REST timeout.

Conditions:
This can be encountered when there are a large number of policies configured in ASM.

Impact:
Unable to associate new ASM policies to LTM policies, due to rest timeout.

Workaround:
None.

Fix:
Modified REST query to get only fullPath to display the list of policies, so the timeout no longer occurs.

866925-5 : The TMM pages used and available can be viewed in the F5 system stats MIB

Component: TMOS

Symptoms:
The memory pages available and in use are tracked with system statistics. Previously those statistics were available only with the tmctl command in the shell.

Conditions:
When system resource decisions are being made, the information about memory usage is important.

Impact:
It is not feasible to query each BIG-IP device separately.

Workaround:
None.

Fix:
You can query these statistics with SNMP through the F5-BIGIP-SYSTEM-MIB::sysTmmPagesStat table.

866685-1 : Empty HSTS headers when HSTS mode for HTTP profile is disabled

Component: Access Policy Manager

Symptoms:
HTTP Strict-Transport-Security (HSTS) headers have an empty value for some APM Access Policy-generated responses.

Conditions:
This occurs when the following conditions are met:
-- HTTP profile is configured with HSTS mode=disabled (which it is by default).
-- HTTP requests for APM renderer content, including CSS, JS, and image files from the webtop.

Impact:
Some audit scanners can consider the empty value of Strict-Transport-Security headers as a vulnerability. For browsers, the empty HSTS value equals no HSTS in response.

Workaround:
1. Enable HSTS mode for the HTTP profile.
2. Use an iRule to remove the empty HSTS header from responses:

when HTTP_RESPONSE_RELEASE {
    if { [HTTP::header value "Strict-Transport-Security"] eq "" } {
        HTTP::header remove "Strict-Transport-Security"
    }
}

Fix:
When the HTTP profile is configured with HSTS mode=disabled, responses from APM renderer content are now sent without an HSTS header.

866613-4 : Missing MaxMemory Attribute

Component: Application Visibility and Reporting

Symptoms:
The MaxMemory Attribute is not reported in the System Monitor statistics report.

Conditions:
This is encountered when viewing the System Monitor report.

Impact:
No 'MaxMemory' value label appears in System Monitor statistics. Instead, there are duplicate AvgMemory fields, for example:
...(AvgMemory='3818',AvgMemory='3818').

Workaround:
Use the AvgMemory value that is the higher of the two to represent MaxMemory.

Note: Sometimes, the AvgMemory and MaxMemory values are the same. In that case, use the second value.

Fix:
The MaxMemory attribute is now reported in System Monitor statistics.

866481-2 : TMM may sometimes core when HTTP-MR proxy attempts to go into passthrough mode

Component: Local Traffic Manager

Symptoms:
TMM may sometimes core when HTTP-MR proxy attempts to go into passthrough mode.

Conditions:
-- HTTP profile is attached to the virtual server.
-- The httprouter profile is attached to the virtual server.
-- HTTP goes into passthrough mode for any variety of reasons.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
TMM no longer cores when HTTP-MR proxy attempts goes into passthrough mode.

866161-1 : Client port reuse causes RST when the security service attempts server connection reuse.

Component: Access Policy Manager

Symptoms:
If the security service attempts server connection reuse, client port reuse causes RST on new connections.

Conditions:
-- Service profile is attached to virtual server.
or
-- SSL Orchestrator (SSLO) is licensed and provisioned and Service chain is added in the security policy.
-- Security service reuses server-side connection.
-- Client reuses the source port.

Impact:
The BIG-IP system or SSLO rejects new connection from clients when a client reuses the port.

Workaround:
None.

Fix:
The BIG-IP system or SSLO no longer rejects the client connection when the service tries to the reuse server connection and the client reuses the port.

866109-2 : JWK keys frequency does not support fewer than 60 minutes

Component: Access Policy Manager

Symptoms:
When configuring the OAuth provider and trying to set the task frequency to fewer than 60 minutes, the BIG-IP reports an error:

01b70003:3: Discovery interval (10) for OAuth provider must be greater than (60) minutes.

Conditions:
This occurs when configuring the frequency interval of an OAuth provider to a value lower than 60 minutes.

Impact:
You are unable to create a provider with a frequency interval of fewer than 60 minutes.

Workaround:
Use a value of 60 minutes or higher.

Fix:
Auto discovery frequency now supported values lower than 60 minutes.

866073-2 : Add option to exclude stats collection in qkview to avoid very large data files

Component: TMOS

Symptoms:
Statistics collection may cause qkview files to be too large for the iHealth service to parse, or may cause memory allocation errors:

qkview: tmstat_map_file: mmap: Cannot allocate memory
qkview: tmstat_subscribe: /var/tmstat/blade/tmm5: Cannot allocate memory at 0xa08a938

Conditions:
Qkview is executed on an appliance or chassis that has a very large configuration.

Impact:
Qkview files may not be able to be parsed by the iHealth service.

Also, memory allocation error messages may be displayed when generating qkview.

Workaround:
None.

Fix:
Qkview now has a -x option that can be used to exclude statistics collection in the stat_module.xml file.

Behavior Change:
Qkview now has a -x option that can be used to exclude statistics collection.

866021-1 : Diameter Mirror connection lost on the standby due to "process ingress error"

Component: Service Provider

Symptoms:
In MRF/Diameter deployment, mirrored connections on the standby may be lost when the "process ingress error" log is observed only on the standby, and there is no matching log on the active.

Conditions:
This can happen when there is a large amount of mirror traffic, this includes the traffic processed by the active that requires mirroring and the high availability (HA) context synchronization such as persistence information, message state, etc.

Impact:
Diameter mirror connections are lost on the standby. When failover occurs, these connections may need to reconnect.

Fix:
Diameter mirror connection no longer lost due to "process ingress error" when there is high mirror traffic.

865461-1 : BD crash on specific scenario

Component: Application Security Manager

Symptoms:
BD crash on specific scenario

Conditions:
A brute force attack mitigation using captcha or client side challenge.

Impact:
BD crash, failover.

Workaround:
Add an iRule that removes the query string from the referrer header only for the login page POSTs.

865289-1 : TMM crash following DNS resolve with Bot Defense profile

Component: Application Security Manager

Symptoms:
TMM may crash when Bot Defense is enabled and network DNS is configured.

Conditions:
This can occur when is Bot Defense enabled and network DNS is configured.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
TMM no longer crashes when Bot Defense is enabled and network DNS is configured.

865241-1 : Bgpd might crash when outputting the results of a tmsh show command: "sh bgp ipv6 ::/0"

Component: TMOS

Symptoms:
When BGP tries to print the address of the default route's peer but there is no matching address for IPv4 or IPv6 so the system returns a NULL and attempting to print results in a crash.

Conditions:
-- Running the show command: sh bgp ipv6 ::/0.
-- There is no matching IPv4 or IPv6 address for the peer.

The conditions that cause this to occur are unknown.

Impact:
Bgdp crashes. Routing may be affected while bgpd restarts.

Workaround:
None.

865225-1 : 100G modules may not work properly in i15000 and i15800 platforms

Component: TMOS

Symptoms:
The tuning values programmed in the switch are not correct for 100G OPT-0039 and OPT-0031 SFP modules.

Conditions:
-- Using OPT-0039 or OPT-0031 modules.

-- Running on i15000 and i15800 platforms.

Note: Use 'tmsh list net interface vendor-partnum', to identify the optic modules installed.

Impact:
You might see traffic drop.

Note: Potential issues related to incorrect tuning values come from F5-internal sources and have not been reported in production configurations.

Workaround:
None.

865177-4 : Cert-LDAP returning only first entry in the sequence that matches san-other oid

Component: TMOS

Symptoms:
Certificate-ldap only returns the first matching oid from the certificate file even though multiple matching san-other entries exists

Conditions:
When Certificate-ladp attribute ssl-cname-field set to san-other and certificate with multiple san-other oids

Impact:
Only the first matching oid is returned.

865053-3 : AVRD core due to a try to load vip lookup when AVRD is down

Component: Application Visibility and Reporting

Symptoms:
AVRD cores during startup.

Conditions:
Avrd receives a SIGTERM while it is starting.

Impact:
This can lead to an AVRD core.

Fix:
Added some more checks while loading new configuration. Suppose to reduce the frequent of these occurrences. Still can happen in very rare occasions.

864797-2 : Cached results for a record are sent following region modification

Component: Global Traffic Manager (DNS)

Symptoms:
Changing the contents of a topology region record may result in DNS queries temporarily being directed as if the change had not happened for queries from the IP address of the last end user client to use topology load balancing.

Conditions:
-- A client at a single IP address makes multiple queries that are load balanced using topology, both before and after a change to a topology region record, where that change also modifies the result the single client receives.

-- If a query from a different client IP address is received and load balanced using topology, then the issue is corrected until the next change to a topology region record.

Impact:
After changing the contents of a topology region record, the last end user client to send a query before the change may receive the wrong load balancing decision if the change affected that decision. Queries from other end user clients are load balanced correctly and cause the issue to go away until the next topology region record change.

Workaround:
This issue can be temporarily corrected by sending a DNS query that is load balanced using topology after making changes to region records.

Fix:
The system now handles regions item changes as expected, so this issue no longer occurs.

864757-3 : Traps that were disabled are enabled after configuration save

Component: TMOS

Symptoms:
The ifLinkUpDownTrapEnable setting is not saved to config files nor UCS. If you have disabled 'link up/down' traps for an interface, save the config, and then load the config files or UCS, all interfaces will have traps enabled, even the ones that were explicitly disabled.

Conditions:
-- Disable 'link up/down' traps for an interface.
-- Save the configuration or UCS.
-- Reload the configuration or load the UCS.

Impact:
All interfaces have traps enabled, even the ones that were explicitly disabled.

Workaround:
None.

864677-1 : ASM causes high mcpd CPU usage

Component: Application Security Manager

Symptoms:
-- CPU utilization is high on the odd-numbered cores.

-- Messages appear at 60-second intervals in /var/log/ts/asm_start.log:
update_GTM_score

Conditions:
-- One or more virtual servers have FTP/SMTP/WEBSEC profiles attached to it.
-- ASM configured.

Impact:
Elevated CPU usage.

Workaround:
-- On the BIG-IP system, edit the file /etc/ts/tools/nwd.cfg to change the value EnforcerCpuReportTimeInterval from 60 to a higher value, e.g., 3600 for once an hour, or even larger.

-- Restart ASM:
bigstart restart asm

Fix:
This issue has been resolved so that CPU usage is no longer elevated under these conditions.

864513-1 : ASM policies may not load after upgrading to 14.x or later from a previous major version★

Solution Article: K48234609

Component: TMOS

Symptoms:
ASM policies may not load immediately after upgrade due to SELinux policies issues relating to the upgrade process.

Conditions:
1. ASM is provisioned.
2. One or more ASM Security Policies is attached to one or more virtual servers.
3. Upgrade from v12.x or v13.x to v14.x or later.

Impact:
Traffic is not processed properly after upgrade due to failure to load ASM policies.

Workaround:
You can use either of the following workarounds.

-- Remove ASM Policies while upgrading:
  1. Prior to upgrade, remove all ASM Security Policies from all virtual servers.
  2. Upgrade.
  3. Reassociate each ASM Security Policy with its original virtual server.

-- Restore the UCS on a new boot location after upgrade:
  1. Prior to upgrade, create a UCS.
  2. Upgrade or create a new instance of the software version at the target location.
  3. Restore the UCS at the new location.

Fix:
ASM policies now load as expected after upgrading to 14.x or later from a previous major version.

864109-1 : APM Portal Access: Base URL may be set to incorrectly

Solution Article: K24415506

863917-2 : The list processing time (xx seconds) exceeded the interval value. There may be too many monitor instances configured with a xx second interval.

Component: Global Traffic Manager (DNS)

Symptoms:
Messages similar to the following may be seen in the DNS (GTM) logs:

The list processing time (32 seconds) exceeded the interval value. There may be too many monitor instances configured with a 30 second interval.

This message was introduced in 15.0.0 as an aid to help identifying overloaded DNS (GTM) systems, but it triggers too easily and can be logged when the device is not overloaded.

Conditions:
-- DNS (GTM) servers are present.
-- Virtual servers are configured on those DNS (GTM) servers.
-- A monitor is applied to the DNS (GTM) server.

Impact:
Messages are logged that imply the system is overloaded when it is not.

Workaround:
Create a log filter to suppress the messages

sys log-config filter gtm-warn {
    level warn
    message-id 011ae116
    source gtmd
}

863609-4 : Unexpected differences in child policies when using BIG-IQ to change learning mode on parent policies

Component: Application Security Manager

Symptoms:
After changing a parent policy's learning mode or other learning attributes in policy-builder settings, deploying the policy will result in differences in the child policies.

Conditions:
On BIG-IP and BIG-IQ:
1. Parent policy has a policy-building section that is inherited.
2. Child policy has wildcard default (*) elements such as urls.
On BIG-IQ:
3. Change parent learning mode from manual to disabled or vice versa
4. Deploy changes

Impact:
There are differences after deploy.

Workaround:
Discover and deploy again from BIG-IQ

Fix:
Changes are deployed from BIG-IQ without causing unexpected changes.

863401-1 : QUIC congestion window sometimes increases inappropriately

Component: Local Traffic Manager

Symptoms:
When QUIC is discovering the link bandwidth, it sometimes increases the congestion window when there is not enough available data to use the existing congestion window.

Conditions:
When the application is not generating enough data, or any streams with data are stream flow control limited.

Impact:
In some cases, the congestion window can be too large for the path and cause packet losses if it is later fully utilized.

Workaround:
None

Fix:
Correctly check for data limitations before increasing congestion window.

863161-1 : Scheduled reports are sent via TLS even if configured as non encrypted

Component: Application Visibility and Reporting

Symptoms:
The scheduled report email is sent from BIG-IP using TLS even if configured to not use encryption. When the mail server TLS is outdated it may lead to failure of the mail delivery.

Conditions:
The scheduled reports are enabled and configured to use a mail server which reports TLS capability.

Impact:
The minor impact is unexpected behaviour. In rare cases it may lead to malfunction of the scheduled reports.

Fix:
The automatic TLS connection was introduced via udate of the phpmailer module. The current fix disables automatic behaviour such that encryption will be used according to BIG-IP configuration.

863069-1 : Avrmail timeout is too small

Component: Application Visibility and Reporting

Symptoms:
AVR report mailer times out prematurely and reports errors:

AVRExpMail|ERROR|2019-11-26 21:01:08 ECT|avrmail.php:325| PHPMailer exception while trying to send the report: SMTP Error: data not accepted.

Conditions:
Configure reports, which will be sent to e-mail

Impact:
Error response from SMTP server, and the report is not sent

Workaround:
Increase timeout in avrmail.php via bash commands

Fix:
The timeout was increased in avrmail.php

862937-3 : Running cpcfg after first boot can result in daemons stuck in restart loop★

Component: TMOS

Symptoms:
After running cpcfg and booting into the volume, daemons such as named and gtmd are stuck restarting. Additionally the SELinux audit log contains denial messages about gtmd and named being unable to read unlabeled_t files.

Conditions:
Running cpcfg on a volume that has already been booted into.

Impact:
Services do not come up.

Workaround:
In the bash shell, force SELinux to relabel at boot time. Then reboot:

# touch /.autorelabel
# reboot

862793-1 : ASM replies with JS-Challenge instead of blocking page upon "Virus detected" violation

Component: Application Security Manager

Symptoms:
When ASM detects "virus" (with help of external icap server), the response page will be JS-Challenge instead of blocking.

Conditions:
-- ASM provisioned.
-- ASM policy attached to a virtual server.
-- Anti-Virus protection enabled in ASM policy.
-- ASM finds a virus in a request.

Impact:
-- End user client gets JS-Challenge response instead of blocking page.
-- End user does not see ASM support ID.
-- Browser can run the JavaScript and resend the request to ASM, which is then forwarded to the backend server.

Workaround:
None.

Fix:
The software now replies with the blocking page, including the ASM support ID.

862597-7 : Improve MPTCP's SYN/ACK retransmission handling

Component: Local Traffic Manager

Symptoms:
- MPTCP enabled TCP connection is in SYN_RECEIVED state.
- TMM cores.

Conditions:
- MPTCP is enabled.
- SYN/ACK (with MP_JOIN or MP_CAPABLE) sent by the BIG-IP is not ACKed and needs to be retransmitted.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Disable MPTCP option in the TCP profile.

Fix:
MPTCP's SYN/ACK retransmission handling is improved.

862557-1 : Client-ssl profiles derived from clientssl-quic fail validation

Component: Local Traffic Manager

Symptoms:
After configuring a clientssl-quic profile, you get a validation error:

01b40001:3: A cipher group must be configured when TLS 1.3 is enabled (validation failed for profile /Common/clientssl-f5quic-udp).

Conditions:
This can occur when using the clientssl-quic built-in profile to build a profile that can serve HTTP/3 over QUIC.

Impact:
You are unable to configure a clientssl profile to work with HTTP/3 + QUIC that is also customized to serve the right certificate, etc.

Workaround:
Modify the clientssl-quic profile to have the following properties:
    cipher-group quic
    ciphers none
This requires the following additional config objects:
ltm cipher group quic {
    allow {
        quic { }
    }
}
ltm cipher rule quic {
    cipher TLS13-AES128-GCM-SHA256,TLS13-AES256-GCM-SHA384
    description "Ciphers usable by QUIC"
}

Fix:
Update the built-in configuration to pass validation.

860881-3 : TMM can crash when handling a compressed response from HTTP server

Component: Local Traffic Manager

Symptoms:
TMM crashes while handling HTTP response

Conditions:
HTTP virtual server performing decompression of response data from a server, e.g. because a rewrite profile is attached to the virtual server.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Disable compression on the server.

860517-1 : MCPD may crash on startup with many thousands of monitors on a system with many CPUs.

Component: TMOS

Symptoms:
MCPD can crash with out of memory when there are many bigd processes (systems with many CPU cores) and many pool members/nodes/monitors.

As a guideline, approximately 100,000 pool members, nodes, and monitors can crash a system that has 10 bigd processes (BIG-IP i11800 platforms). tmm crash

Conditions:
-- Tens of thousands of pool members, nodes, and/or monitors.
-- Multiple (generally 6 or more) bigd processes.
-- System startup or bigstart restart.

Impact:
The mcpd process crashes. Traffic disrupted while mcpd restarts.

Workaround:
Set the db variable bigd.numprocs to a number smaller than the number of bigd processes currently being started.

Fix:
The memory efficiency of MCPD has been improved. This allows very large BIG-IP configurations to be used successfully.

860349-3 : Upgrading from previous versions to 14.1 or creating a new configuration with user-template, which involves the usage of white-space character, will result in failed authentication

Component: TMOS

Symptoms:
After upgrading BIG-IP to 14.1 the LDAP/AD remote authentication will fail .

The /var/log/secure will show :

/secure:
Dec 6 15:27:44 hostname err httpd[9402]: pam_ldap(httpd:auth): error opening connection to nslcd: No such file or directory
Dec 6 15:27:44 hostname notice httpd[9402]: pam_ldap(httpd:auth): auth server unavailable, trying fallback
Dec 6 15:27:44 hostname warning httpd[9402]: pam_unix(httpd:auth): check pass; user unknown
Dec 6 15:27:44 hostname notice httpd[9402]: pam_unix(httpd:auth): authentication failure; logname= uid=48 euid=48 tty= ruser= rhost=192.168.227.145

/var/log/daemon.log will show ;

/daemon:
Dec 6 15:29:40 hostname notice systemd[1]: nslcd.service: main process exited, code=exited, status=1/FAILURE
Dec 6 15:29:40 hostname notice systemd[1]: Unit nslcd.service entered failed state.
Dec 6 15:29:40 hostname warning systemd[1]: nslcd.service failed.
Dec 6 15:35:47 hostname notice systemd[1]: nslcd.service: main process exited, code=exited, status=1/FAILURE
Dec 6 15:35:47 hostname notice systemd[1]: Unit nslcd.service entered failed state.
Dec 6 15:35:47 hostname warning systemd[1]: nslcd.service failed.

> Dec 06 15:35:47 hostname systemd[1]: Started Naming services LDAP client daemon..
> Dec 06 15:35:47 hostname systemd[1]: Starting Naming services LDAP client daemon....
> Dec 06 15:35:47 hostname nslcd[8050]: nslcd: /etc/nslcd.conf:15: usertemplate: too may arguments
> ===================== > This is the hint that user-template is at fault

Conditions:
LDAP/nslcd config , remote authentication , user-template used

The values within user-template include white spaces :

example: uid=%s,CN=my home,OU=Generic Users,OU=good Users,OU=users,DC=users,DC=org

Impact:
LDAP/nslcd process failed with "error opening connection to nslcd" when user-template includes white spaces.

Workaround:
Replace the white-space character with underscore "_" in the user-template if possible, or remove the user-template and restart nslcd daemon

860317-3 : JavaScript Obfuscator can hang indefinitely

Component: TMOS

Symptoms:
High CPU usage by obfuscator for an extended period of time.

Conditions:
Occurs very rarely, when FPS or L7 DDoS protection are enabled.

Impact:
High CPU Usage.

Workaround:
Kill the obfuscator process

Fix:
Datasyncd daemon kills hanging obfuscator processes if they stop responding.

860005-1 : Ephemeral nodes/pool members may be created for wrong FQDN name

Component: Local Traffic Manager

Symptoms:
Under rare timing conditions, one or more ephemeral nodes and pool members may be created for the wrong FQDN name, resulting in one or more ephemeral pool members being created incorrectly for a given pool.

Conditions:
This problem occurs when a DNS Request is sent to resolve a particular FQDN name with the same DNS Transaction ID (TXID) as another DNS Request currently pending with the same DNS name server. When this occurs, the IP addresses returned in the first DNS Response received with that TXID may be incorrectly associated with a pending DNS Request with the same TXID, but for a different FQDN name which does not actually resolve to those IP addresses.

The timing conditions that produce such duplicate TXIDs may be produced by one or more of the following factors:
1. Many FQDN names to be resolved.
2. Short DNS query interval values configured for the FQDN template nodes (or short TTL values returned by the DNS name server with the query interval configured as 'ttl').
3. Delayed responses from the DNS name server causing DNS queries to remain pending for several seconds.

Impact:
When this issue occurs, traffic may be load-balanced to the wrong members for a given pool.

Workaround:
It may be possible to mitigate this issue by one or more of the following actions:

-- Ensuring that the DNS servers used to resolve FQDN node names have sufficient resources to respond quickly to DNS requests.

-- Reducing the number of FQDN template nodes (FQDN names to be resolved).

-- Reducing the frequency of DNS queries to resolve FQDN node names (FQDN names) by either increasing the 'interval' value configured for FQDN template nodes, or by increasing the TTL values for DNS zone records for FQDN names for FQDN nodes configured with an 'interval' value of 'ttl'.

859721-1 : Using GENERICMESSAGE create together with reject inside periodic after may cause core

Component: Service Provider

Symptoms:
In iRules, when "GENERICMESSAGE::message create" is called after "reject" command inside "after -periodic", it may cause core. Below is an example iRules.

when CLIENT_ACCEPTED {
    ... omitted ...
    after 1000 -periodic {
        ... omitted ...
        reject
        GENERICMESSAGE::message create "test"
    }
}

This relates to ID 859113.

Conditions:
GENERICMESSAGE::message create" is called after "reject" inside "after -periodic

Impact:
Traffic disrupted while tmm restarts.

Workaround:
There are 2 possible work-arounds
- use "return" command after "reject" to exit after script immediately after "reject" command is invoked
- add routine to cancel the after in CLIENT_CLOSED event

Fix:
Using GENERICMESSAGE create together with reject inside periodic after no longer cause core

859717-2 : ICMP-limit-related warning messages in /var/log/ltm

Component: Local Traffic Manager

Symptoms:
'ICMP error limit reached' warning messages in /var/log/ltm:

warning tmm3[23425]: 01200015:4: Warning, ICMP error limit reached.

Conditions:
Viewing /var/log/ltm.

Impact:
Potentially numerous error messages, depending on the traffic and the BIG-IP configuration. No clear indication of how to remedy the situation.

Workaround:
None.

Fix:
The system better tracks what kind of traffic triggers the 'ICMP error limit reached' logs so the issue can be mitigated.

859113-1 : Using "reject" iRules command inside "after" may causes core

Component: Local Traffic Manager

Symptoms:
In iRules, when "reject" is used inside "after -periodic" and it is followed by "GENERICMESSAGE::message create". It may trigger a tmm core. Below is an example iRule.

when CLIENT_ACCEPTED {
    ... omitted ...
    after 1000 -periodic {
        ... omitted ...
        reject
        GENERICMESSAGE::message create "test"
    }
}

This relates to ID 859721

Conditions:
- "reject" is used inside "after -periodic"
- it is followed by "GENERICMESSAGE::message create"

Impact:
Traffic disrupted while tmm restarts.

Fix:
Using "reject" iRules command inside "after" no longer cause core.

859089-7 : TMSH allows SFTP utility access

Solution Article: K00091341

858973-1 : DNS request matches less specific WideIP when adding new wildcard wideips

Component: Global Traffic Manager (DNS)

Symptoms:
After adding a new wildcard wideip, DNS requests start matching the wildcard even if a more specific wildcard wideip should match.

Conditions:
New less specific Wildcard WideIPs are created.

Impact:
DNS request matches less specific WideIP.

Workaround:
# tmsh load sys config gtm-only
or
restart tmm

858769-6 : Net-snmp library must be upgraded to 5.8 in order to support SHA-2

Solution Article: K82498430

Component: TMOS

Symptoms:
The net-snmp 5.7.2 library does not support extended key lengths for SHA and AES protocols used for SNMPv3 authentication and privacy protocols.

Conditions:
When the BIG-IP net-snmp libraries are version 5.7.2, or earlier, than only SHA and AES are available for configuring trap sessions and users in SNMPv3.

Impact:
The longer keys lengths for SNMPv3 cannot be used.

Workaround:
None

Fix:
With the net-snmp 5.8 libraries there is SHA-2 support for longer SHA and AES keys. New options are: SHA-224, 256, 384, and 512 and AES-192, 192-C, 256, 256-C.

858701-1 : Running config and saved config are having different route-advertisement values after upgrading from 11.x/12.x★

Component: Local Traffic Manager

Symptoms:
When you upgrade an 11.x/12.x device with route advertisement enabled, you might discover a difference between the running configuration and the saved configuration post upgrade, which might result in route advertisement becoming disabled.

-- In the running configuration, the virtual-addresses route advertisement setting 'enabled' changes to 'selective'.
-- In bigip.conf, the virtual-addresses route advertisement setting is still set to 'enabled'.
-- After config load or after re-licensing, the virtual-addresses route advertisement reverts to disabled.

Conditions:
-- Upgrading an 11.x/12.x device with route advertisement enabled.
-- After saving the config, both the running-config and bigip.conf have the same value: i.e., 'selective'.
-- Loading the configuration (tmsh load sys config) results in route advertisement becoming disabled.

Impact:
The route-advertisement setting is 'enabled' in the config file, but 'selective' in the running configuration. This has the following impact:

If you save the configuration and then reload it, the route advertisement is changed to 'selective' in the config file and 'disabled' in the running config.

Workaround:
You can identify whether systems running v13.0.0 or higher are at risk of encountering this issue by checking a legacy internal setting, ROUTE_ADVERTISEMENT:

Procedure to identify whether virtual-addresses are affected, that have an incorrect setting in the legacy ROUTE_ADVERTISEMENT artifact:

  Virtual-addresses may be affected by this issue on v13.0.0 and higher if ROUTE_ADVERTISEMENT=true in mcpd.

  You can check this value with the guishell command:
    guishell -c "select NAME,ROUTE_ADVERTISEMENT,RA_OPTION from virtual_address";

    Example:
      guishell -c "select NAME,ROUTE_ADVERTISEMENT,RA_OPTION from virtual_address";
        -----------------------------------------------------------
        | NAME | ROUTE_ADVERTISEMENT | RA_OPTION |
        -----------------------------------------------------------
        | /Common/10.32.101.41 | false | 0 | <<< no risk, virtual-address created in 13.1.3.2 with route-advertisement disabled
        | /Common/10.32.101.42 | false | 2 | <<< no risk, virtual-address created in 13.1.3.2 with route-advertisement selective
        | /Common/10.32.101.43 | false | 1 | <<< no risk, virtual-address created in 13.1.3.2 with route-advertisement enabled
        | /Common/10.32.101.47 | true | 0 | <<< MEDIUM RISK virtual-address from a 11.6.2 upgrade or 11.6.2 ucs with route-advertisement not in use
        | /Common/10.32.101.49 | true | 1 | <<< HIGH RISK virtual-address from a 11.6.2 upgrade or 11.6.2 ucs with route-advertisement enabled

      Any virtual address that shows ROUTE_ADVERTISEMENT=true is at risk. If true but route-advertisement is not in use, there is no risk until route-advertisement is configured later.

------------------------------------------------------------------------------------------
Procedure to remove the legacy ROUTE_ADVERTISEMENT artifact from the config on systems found to be affected:

1. Review Standby system (if available) and ensure Route Advertisement in running configuration is configured and functioning as desired with "tmsh list ltm virtual-address route-advertisement". If not, manually correct Route Advertisement to desired configuration and confirm functionality.

2. Fail over Active system to Standby status:
  tmsh run sys failover standby

3. Review former Active (now Standby) system and ensure Route Advertisement in running configuration is configured and functioning as desired. If not, manually correct Route Advertisement to desired configuration.

4. Save the config to disk:
  tmsh save sys config

5. Load the config from disk. This may temporarily cause route-advertisement to revert to disabled on at risk virtual-addresses:
  tmsh load sys config

6. Load the config a 2nd time. This removes the legacy artifact, re-enables route-advertisement as per the configuration, and leaves the system in a not-at-risk state:
  tmsh load sys config

7. Verify it worked:
  guishell -c "select NAME,ROUTE_ADVERTISEMENT,RA_OPTION from virtual_address";

  Example of a fixed config:
    guishell -c "select NAME,ROUTE_ADVERTISEMENT,RA_OPTION from virtual_address";
      -----------------------------------------------------------
      | NAME | ROUTE_ADVERTISEMENT | RA_OPTION |
      -----------------------------------------------------------
      | /Common/10.32.101.41 | false | 0 | <<< no risk, virtual-address created in 13.1.3.2 with route-advertisement disabled
      | /Common/10.32.101.42 | false | 2 | <<< no risk, virtual-address created in 13.1.3.2 with route-advertisement selective
      | /Common/10.32.101.43 | false | 1 | <<< no risk, virtual-address created in 13.1.3.2 with route-advertisement enabled
      | /Common/10.32.101.47 | false | 0 | <<< no risk, virtual-address from a 11.6.2 upgrade or 11.6.2 ucs with route-advertisement not in use
      | /Common/10.32.101.49 | false | 1 | <<< no risk, virtual-address from a 11.6.2 upgrade or 11.6.2 ucs with route-advertisement enabled

------------------------------------------------------------------------------------------
If you encounter this issue and route-advertisement becomes disabled before cleaning the legacy ROUTE_ADVERTISEMENT artifact from the config, reload the configuration again using the following command to set the running config and saved config to 'selective':

tmsh load sys config

858537-2 : CVE-2019-1010204: Binutilis Vulnerability

Solution Article: K05032915

858429-3 : BIG-IP system sending ICMP packets on both virtual wire interface

Component: Local Traffic Manager

Symptoms:
ICMP packets are forwarded to both virtual wire interface, which causes MAC-Flip on the connected switches.

Conditions:
-- Ingress ICMP packet is on one TMM.
-- Egress is on another TMM.

Impact:
Traffic is disrupted in the network.

Workaround:
None.

858349-3 : TMM may crash while processing SAML SLO traffic

Solution Article: K44808538

858301-1 : The BIG-IP system may not interpret an HTTP request the same way the target web server interprets it

Solution Article: K27551003

Component: Local Traffic Manager

Symptoms:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Conditions:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Impact:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Workaround:
None.

Fix:
For more information, please see:
https://support.f5.com/csp/article/K27551003

858297-1 : The BIG-IP system may not interpret an HTTP request the same way the target web server interprets it

Solution Article: K27551003

Component: Local Traffic Manager

Symptoms:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Conditions:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Impact:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Workaround:
None.

Fix:
For more information, please see:
https://support.f5.com/csp/article/K27551003

858289-1 : The BIG-IP system may not interpret an HTTP request the same way the target web server interprets it

Solution Article: K27551003

Component: Local Traffic Manager

Symptoms:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Conditions:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Impact:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Workaround:
None.

Fix:
For more information, please see:
https://support.f5.com/csp/article/K27551003

858285-1 : The BIG-IP system may not interpret an HTTP request the same way the target web server interprets it

Solution Article: K27551003

Component: Local Traffic Manager

Symptoms:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Conditions:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Impact:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Workaround:
None.

Fix:
For more information, please see:
https://support.f5.com/csp/article/K27551003

858229-5 : XML with sensitive data gets to the ICAP server

Solution Article: K22493037

Component: Application Security Manager

Symptoms:
XML with sensitive data gets to the ICAP server, even when the XML profile is not configured to be inspected.

Conditions:
XML profile is configured with sensitive elements on a policy.
ICAP server is configured to inspect file uploads on that policy.

Impact:
Sensitive data will reach the ICAP server.

Workaround:
No immediate workaround except policy related changes

Fix:
An internal parameter, send_xml_sensitive_entities_to_icap was added. It's default is 1 as this is the expected behavior. To disable this functionality, change the internal parameter value to 0.

Behavior Change:
An internal parameter has been added, called send_xml_sensitive_entities_to_icap, and the default value is 1.

When this is changed to 0 (using this command):
/usr/share/ts/bin/add_del_internal add send_xml_sensitive_entities_to_icap 0
XML requests with sensitive data will not be sent to ICAP.

858197-2 : Merged crash when memory exhausted

Component: TMOS

Symptoms:
Merged crashes when system memory is exhausted

Conditions:
System memory is is at 0% available.

Impact:
Merged crashes, stopping stats updates

Workaround:
Reduce the configuration on the system

Fix:
Remove function call to drop row from table on error path where row was not successfully added.

858189-3 : Make restnoded/restjavad/icrd timeout configurable with sys db variables.

Component: Device Management

Symptoms:
When a large number of LTM objects are configured on BIG-IP, making updates via iControl REST can result in restjavad/restnoded/icrd errors.

Conditions:
Using iControl REST/iapp to update a data-group that contains a large number of records, e.g., 75,000 or more.

Impact:
REST operations can time out when they take too long, and it is not possible to increase the timeout.

Workaround:
None.

Fix:
ICRD/restjavad/restnoded timeouts are now configurable through sys db variables.

Behavior Change:
New Sys DB variables have been added to allow you to modify the timeout settings of restjavad, restnoded, and icrd:

restnoded.timeout
restjavad.timeout
icrd.timeout

The default value is 60 seconds for each of these.

A restart of restjavad and restnoded is required for the change to take effect.

tmsh restart /sys service restjavad
tmsh restart /sys service restnoded

858025-1 : BIG-IP ASM Bot Defense open redirection vulnerability CVE-2021-22984

Solution Article: K33440533

857953-2 : Non-functional disable/enable buttons present in GTM wide IP members page

Component: Global Traffic Manager (DNS)

Symptoms:
Enable/disable buttons do not perform any action against the selected members when pressed.

Conditions:
-- GTM wide IP has members.
-- Navigate to the GTM wide IP members page.
-- Attempt to enable or disable a selected member./

Impact:
No action against the selected members occurs when the buttons are pressed.

Workaround:
None.

857845-1 : TMM crashes when 'server drained' or 'client drained' errors are triggered via an iRule

Component: Local Traffic Manager

Symptoms:
Whenever the server or client side data have not been drained, 'server drained' or 'client drained' appear in /var/log/tmm as errors.

Conditions:
-- Using iRule configuration with LB::detach or LB::connect.
-- Server- or client-side data has not been drained before those statements are triggered.

Impact:
TMM crashes and can cause an outage on standalone system or failover in a DSC. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
TMM no longer crashes and the 'server not drained' or 'client not drained' message is logged instead. If tmm.oops is set to 'log', the OOPS messages is reported in /var/log/tmm.

857589-1 : On Citrix Workspace app clicking 'Refresh Apps' after signing out fails with message 'Refresh Failed'

Component: Access Policy Manager

Symptoms:
On the Citrix Workspace app, clicking 'Refresh Apps' after signing out fails with message "Refresh Failed" with v15.1.x

Conditions:
-- Running the Citrix Workspace all.
-- Clicking 'Refresh Apps' after signing out.
-- Running software v15.1.x.

Impact:
The system reports a 'Refresh failed' error, and the app must to be reset.

Workaround:
None.

Fix:
The system now shows a prompt/pop-up for credentials and signs-in successfully.

856961-7 : INTEL-SA-00201 MCE vulnerability CVE-2018-12207

Solution Article: K17269881

856725-1 : Missing learning suggestion for "Illegal repeated parameter name" violation

Component: Application Security Manager

Symptoms:
Some URL/parameter related suggestions are not issued

Conditions:
The can occur on URLs that are configured with a method. It can also occur on URL-level parameters that are configured on such URLs.

Impact:
Some learning suggestions are not issued as expected

Workaround:
None

Fix:
After fix suggestions are issued as expected

854493-5 : Kernel page allocation failures messages in kern.log

Component: TMOS

Symptoms:
Despite having free memory, the BIG-IP system frequently logs kernel page allocation failures to the /var/log/kern.log file. The first line of the output appears similar to the following example:

swapper/16: page allocation failure: order:2, mode:0x104020

After that, a stack trace follows. Note that the process name in the line ('swapper/16', in this example) varies. You may see generic Linux processes or processes specific to F5 in that line.

Conditions:
This issue is known to occur on the following VIPRION blade models:

- B2250 (A112)
- B4300 (A108)
- B4340N (A110)
- B4450 (A114)

Please note the issue is known to occur regardless of whether or not the system is running in vCMP mode, and regardless of whether the system is Active or Standby.

Workaround:
You can work around this issue by increasing the value of the min_free_kbytes kernel parameter. This controls the amount of memory that is kept free for use by special reserves.

It is recommend to increase this as follows:
-- 64 MB (65536 KB for 2250 blades)
-- 48 MB (49152 KB for B4300 blades)
-- 128 MB (131072 KB for 4450 blades)

You must do this on each blade installed in the system.

When instantiating this workaround, you must consider whether you want the workaround to survive only reboots, or to survive reboots, upgrades, RMAs, etc. This is an important consideration to make, as you should stop using this workaround when this issue is fixed in a future version of BIG-IP software. So consider the pros and cons of each approach before choosing one.

-- If you want the workaround to survive reboots only, perform the following procedure:

1) Log on to the advanced shell (BASH) of the primary blade of the affected VIPRION system.

2) Run the following commands (with the desired amount in KB):

# clsh "sysctl -w vm.min_free_kbytes=131072"
# clsh "echo -e '\n# Workaround for ID753650' >> /etc/sysctl.conf"
# clsh "echo 'vm.min_free_kbytes = 131072' >> /etc/sysctl.conf"

-- If you want the workaround to survive reboots, upgrades, RMAs, etc., perform the following procedure:

1) Log on to the advanced shell (BASH) of the primary blade of the affected VIPRION system.

2) Run the following commands (with the desired amount in KB):

# clsh "sysctl -w vm.min_free_kbytes=131072"
# echo -e '\n# Workaround for ID753650' >> /config/startup
# echo 'sysctl -w vm.min_free_kbytes=131072' >> /config/startup

Note that the last two commands are not wrapped inside 'clsh' because the /config/startup file is already automatically synchronized across all blades.

Once the issue is fixed in a future BIG-IP version, remove the workarounds:

-- To remove the first workaround:

1) Edit the /etc/sysctl.conf file on all blades, and remove the added lines at the bottom.

2) Reboot the system by running 'clsh reboot'. This will restore the min_free_kbytes kernel parameter to its default value for the BIG-IP version you are running.

-- To remove the second workaround:

1) Edit the /config/startup file on the primary blade only, and remove the extra lines at the bottom.

2) Reboot the system by running 'clsh reboot'. This restores the min_free_kbytes kernel parameter to its default value for the BIG-IP version you are running.

To verify the workaround is in place, run the following command (this should return the desired amount in KB):

# clsh "cat /proc/sys/vm/min_free_kbytes"

Fix:
The BIG-IP system no longer experiences kernel page allocation failures.

854177-5 : ASM latency caused by frequent pool IP updates that are unrelated to ASM functionality

Component: Application Security Manager

Symptoms:
Whenever a pool IP address is modified, an update is sent to bd regardless of whether that pool is relevant to ASM. When these updates occur frequently, as can be the case for FQDN nodes that honor DNS TTL, latency can be introduced in ASM handling.

Conditions:
Pool nodes have frequent IP address updates, typically due to an FQDN node set to honor DNS TTL.

Impact:
Latency is introduced to ASM handling.

Workaround:
Set the fast changing nodes to static updates every hour.

Fix:
ASM now correctly ignores pool member updates that do not affect remote logging.

854001-2 : TMM might crash in case of trusted bot signature and API protected url

Component: Application Security Manager

Symptoms:
When sending request to a protected API URL, with a trusted bot signature, tmm tries to perform reverse DNS to verify the signature. During this process, the URL qualification might change. In this case - tmm crashes.

Conditions:
-- Bot Defense profile attached.
-- 'API Access for Browsers and Mobile Applications' is enabled.
-- A DNS server is configured.
-- Request is sent to an API-qualified URL.
-- Request is sent with a trusted bot signature.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Disable the 'API Access for Browsers and Mobile Applications' or remove the DNS server.

Fix:
An issue where tmm could crash when processing a request sent to a protected API URL with a trusted bot signature has been fixed.

853613-4 : Improve interaction of TCP's verified accept and tm.tcpsendrandomtimestamp

Component: Local Traffic Manager

Symptoms:
A TCP connection hangs occasionally.

Conditions:
-- The TCP connection is on the clientside.
-- sys db tm.tcpsendrandomtimestamp is enabled (default is disabled).
-- A virtual server's TCP's Verified Accept and Timestamps are both enabled.

Impact:
TCP connections hangs, and data transfer cannot be completed.

Workaround:
You can use either of the following workarounds:
-- Disable tm.tcpsendrandomtimestamp.
-- Disable either the TCP's Verified Accept or Timestamps option.

Fix:
This release provides improved interaction between TCP's Verified Accept and Timestamps options and the tm.tcpsendrandomtimestamp setting.

853585-1 : REST Wide IP object presents an inconsistent lastResortPool value

Component: Global Traffic Manager (DNS)

Symptoms:
The output of a REST call to tm/gtm/wideip/<wideip_kind> returns objects that contain inconsistent values for the property 'lastResortPool'. For instance, for the kind 'aaaa', the output might be:

...
"lastResortPool": "aaaa \"\""
...

Conditions:
The BIG-IP admin has modified a Wide IP object via tmsh and used the following command structure:

tmsh modify gtm wideip <wideip_kind> www.example.com last-resort-pool <pool_kind>

Impact:
The lastResortValue in the REST response might be confusing for an external orchestrator that consumes the BIG-IP configuration via iControl REST. BIG-IQ, for instance. BIG-IQ might not work as expected with these values.

Workaround:
Change the Wide IP object via the GUI and set the Last Resort Pool to None, then save the changes.

Fix:
The tmsh interpreter now enforces the structure 'tmsh modify gtm wideip <wideip_kind> www.example.com last-resort-pool <pool_kind> <pool_name>'.

853545-1 : MRF GenericMessage: Memory leaks if messages are dropped via iRule during GENERICMESSAGE_INGRESS event

Component: Service Provider

Symptoms:
For each message dropped during GENERICMESSAGE_INGRESS, memory is leaked.

Conditions:
Usage of GENERICMESSAGE::message drop iRule command during GENERICMESSAGE_INGRESS event will leak memory.

Impact:
As more memory is leaked, less memory is available for message processing, eventually leading to a core.

Workaround:
Use MR::message drop during MR_INGRESS event instead to drop a message.

Fix:
Usage of GENERICMESSAGE::message drop iRule command no longer leaks memory.

853325-1 : TMM Crash while parsing form parameters by SSO.

Component: Access Policy Manager

Symptoms:
When a form is received in the response, TMM crashes when SSO identifies the form parameter, and logs the Form parameter value and type in SSOv2 form-based passthrough log.

Conditions:
-- When any of the form parameters that SSO receives in the response does not have a value.
-- Passthrough mode is enabled in SSO.

Impact:
TMM crash when Passthrough mode is enabled in SSO. Traffic disrupted while tmm restarts.

Workaround:
Do not use Passthrough mode with SSO.

Fix:
TMM does not crash when Passthrough mode is enabled in SSO, and SSO receives any valid form in a response.

853101-2 : ERROR: syntax error at or near 'FROM' at character 17

Component: TMOS

Symptoms:
After clicking UI Security :: Network Firewall : Active Rules, /var/log/ltm reports the following error message:
--warning postgres ERROR: syntax error at or near 'FROM' at character 17.

Conditions:
Enabled turboflex-security and AFM module.

Impact:
-- Possible leak of postgres database connections.
-- A warning log message is created, but the system continues to function normally.

Workaround:
None.

Fix:
Correct is AFMProvisioned check was added to wrap database connection deallocation

852929-6 : AFM WebUI Hardening

Solution Article: K25160703

852873-2 : Proprietary Multicast PVST+ packets are forwarded instead of dropped

Component: Local Traffic Manager

Symptoms:
Because the BIG-IP system does not recognize proprietary multicast MAC addresses such as PVST+ (01:00:0c:cc:cc:cd) and STP (01:80:c2:00:00:00), when STP is disabled the system does not drop those frames. Instead the system treats those as L2 multicast frames and forwards between 2 interfaces.

Conditions:
-- STP disabled
-- All platforms except 2000 series, 4000 series, i2000 series, i4000 series and i850.

Impact:
PVST+ (01:00:0c:cc:cc:cd), a proprietary multicast MAC is forwarded instead of discarded, even when STP is disabled.

Workaround:
None.

Fix:
Traffic with Destination MAC as PVST+ (01:00:0c:cc:cc:cd) or STP (01:80:c2:00:00:00) is sent to the BIG-IP system, egress traffic is monitored to check that MAC is dropped when either or both of the following db variables is enabled or vice-versa:
bcm56xxd.rules.badpdu_drop
bcm56xxd.rules.lldp_drop

852861-1 : TMM cores intermittently when HTTP/3 tries to use uni-directional streams in 0-RTT scenario

Component: Local Traffic Manager

Symptoms:
TMM cores intermittently when HTTP/3 tries to use uni-directional streams in 0-RTT scenario.

Conditions:
-- Virtual server with QUIC, HTTP/3, HTTP, SSL and httprouter profiles.
-- 0-RTT connection resumption in progress.

Impact:
TMM cores intermittently.

Workaround:
No workaround.

Fix:
Defer sending of early keys from SSL to QUIC. This results in delaying of ingress decryption. HTTP/3 is initialized before receiving decrypted data.

852437-3 : Overly aggressive file cleanup causes failed ASU installation

Solution Article: K25037027

Component: Application Security Manager

Symptoms:
Directory cleanup for failed Attack Signature Updates (ASU) is too aggressive and may delete needed files in the middle of installation itself, which causes the update to fail.

Conditions:
An ASU runs at the same time as the file cleanup task.

Impact:
The ASU fails to complete successfully.

Workaround:
The default clean interval is 300 seconds (5 minutes).

1. Run the following command to monitor the clean activity:
#tailf /var/log/ts/asmcrond.log | grep CleanFiles

2. Watch for following message in the log:
asmcrond|INFO|Mar 20 21:54:44.389|24036|F5::PeriodicTask::Base::run,,Running Task: CleanFiles

3. Upgrade the ASU immediately.

If 5 minutes is not enough, you can increase the clean interval.

1. Adjust the interval in the /etc/ts/tools/asmcrond.cfg file:

From:
[CleanFiles]
Interval=300

To:
[CleanFiles]
Interval=3000

Important: Do not set Interval too high. 50 minutes (3000 seconds) should be enough.

2. Restart the asmcrond by killing the process. It respawns after several seconds.
ps -ef | grep asmcrond
kill <pid>

3. Monitor the asmcrond.log until you see another Cleanfiles log message.
# tailf /var/log/ts/asmcrond.log | grep CleanFiles

4. Install the ASU; the temp files can stay in the folder for 50 minutes.

5. After the ASU is installed, change the interval back to 300 and restart asmcrond.

6. Make sure asmcrond has been started correctly.
# ps -ef | grep asmcrond
# tailf /var/log/ts/asmcrond.log

Fix:
The directory cleanup does not clean up files that are being actively used for an installation.

852373-3 : HTTP2::disable or enable breaks connection when used in iRule and logs Tcl error

Component: Local Traffic Manager

Symptoms:
HTTP/2 connection breaks and Tcl error is logged in /var/log/ltm similar to the following:

TCL error: /Common/http2_disable <CLIENT_ACCEPTED> - Unknown error (line 1) (line 1) invoked from within "HTTP2::disable".

Conditions:
Any of the following Tcl commands are used in any iRule event: HTTP2::enable, HTTP2::enable clientside, HTTP2::disable, HTTP2::disable clientside.

Impact:
HTTP/2 traffic is not passed to the serverside.

Workaround:
Do not use the following Tcl commands: HTTP2::enable, HTTP2::enable clientside, HTTP2::disable, HTTP2::disable clientside

Fix:
When the previously mentioned Tcl commands are used in appropriate HTTP iRule events, such as CLIENT_ACCEPTED, HTTP/2 filter is put into passthrough mode and traffic is delivered to the server.

852313-4 : VMware Horizon client cannot connect to APM after some time if 'Kerberos Authentication' is configured

Component: Access Policy Manager

Symptoms:
VMware Horizon clients cannot ,connect to APM and /var/log/apm contains hte following error:
... err tmm3[12345]: 01490514:3: (null):Common:00000000: Access encountered error: ERR_BOUNDS. File: ../modules/hudfilter/access/access.c, Function: access_do_internal_retry, Line: 16431

Conditions:
-- Access Policy has 'VMware View Logon Page' agent configured with 'Kerberos Authentication'.
-- The policy has been in use for some time.

Impact:
VMware Horizon client cannot connect to APM after some time.

Workaround:
None.

Fix:
Fixed an issue, where 'VMware View Logon Page' agent configured with 'Kerberos Authentication' does not process logon requests after some time.

852289-4 : DNS over TCP packet is not rate-limited accurately by DoS device sweep/flood vector

Solution Article: K23278332

Component: Advanced Firewall Manager

Symptoms:
DNS over TCP packet is not rate-limited accurately by DoS device sweep and flood vector.

Conditions:
-- Setting the correct DNS pkt type in the DoS device sweep or flood vector.
-- Sending DNS over TCP.

Impact:
DNS over TCP is DDoS attack is not mitigated correctly.

Workaround:
Using DNS DoS vector to mitigate the attack.

Fix:
The attack mitigation by sweep and flood vector is accurate.

852101-1 : Monitor fails.

Component: Global Traffic Manager (DNS)

Symptoms:
Big3d fails external monitor SIP_monitor because GTM SIP Monitors need to be running as privileged.

Conditions:
TLS SIP monitor on pool member requiring client auth.

Impact:
Big3d fails external monitor SIP_monitor.

Workaround:
The only workaround is to allow world reading of key files in the filestore, however, this is not ideal as it exposes potentially sensitive data.

852001-1 : High CPU utilization of MCPD when adding multiple devices to trust domain simultaneously

Component: TMOS

Symptoms:
When using more than 4 BIG-IP devices connected in a device cluster, and adding 2 more devices to the trust domain, the mcpd processes of each device may get into a sync loop. This causes mcpd to reach up to 90% CPU utilization during this time, and causes other control-plane functionality to halt. This state may last 10-20 minutes in some cases, or continuous in other cases.

Conditions:
-- More than 4 BIG-IP devices are configured in a trust domain configuration.
-- Adding at least 2 more devices to the trust domain, one after the other, without waiting for the full sync to complete.
-- ASM, FPS, or DHD (DOS) is provisioned.

Impact:
High CPU utilization, GUI, TMSH, and REST API not responding or slow-responding, other system processes halted.

Workaround:
When adding a BIG-IP device to the trust domain, before adding any other device, wait a few minutes until the sync is complete, and no more sync logs display in /var/log/ltm.

Fix:
MCPD no longer utilizes high CPU resources when adding simultaneously 4 or more devices to CMI.

851857-1 : HTTP 100 Continue handling does not work when it arrives in multiple packets

Component: Local Traffic Manager

Symptoms:
If a 100 Continue response from a server arrives in mulitple packets, HTTP Parsing may not work as expected. The later server response payload may not be sent to the client.

Conditions:
The server responds with a 100 Continue response which has been broken into more than one packet.

Impact:
The response is not delivered to the client. Browsers may retry the request.

Workaround:
None.

Fix:
100 Continue responses are parsed correctly by the HTTP parser if they are broken into multiple packets.

851789-2 : SSL monitors flap with client certs with private key stored in FIPS

Component: Local Traffic Manager

Symptoms:
Bigd reporting 'overload' or 'overloaded' in /var/log/ltm.
SSL monitors flapping while the servers are available.

Conditions:
-- FIPS-enabled platform.
-- HTTPS monitors using client-cert authentication where the key is stored in FIPS HSM.
-- Large number of monitors or low interval.

Impact:
Periodic service interruption depending on which monitors are flapping. Reduced number of available servers.

Workaround:
-- Increase the interval on the monitors.
-- Switch the monitors to use software keys.

Fix:
Optimized FIPS API calls to improve performance of SSL monitors.

851745-3 : High cpu consumption due when enabling large number of virtual servers

Component: Advanced Firewall Manager

Symptoms:
Observed autodosd CPU burst

Conditions:
Enable autodosd and a large number of virtual servers

Impact:
High cpu utilization in autodosd

Workaround:
Disable autodosd

Fix:
Autodosd no longer excessively consumes CPU cycles.

851581-3 : Server-side detach may crash TMM

Component: Local Traffic Manager

Symptoms:
TMM crash with 'server drained' panic string.

Conditions:
-- Server-side flow is detached while the proxy is still buffering data for the pool member and the client continues to send data.
-- The detach may be triggered by the LB::detach iRule commands or internally.

Impact:
TMM crash, failover, brief traffic outage. Traffic disrupted while tmm restarts.

Workaround:
-- In cases in which the detach is triggered internally, there is no workaround.

-- In cases in which the detach is triggered by LB::Detach, make sure the command is not executed when a request may still be in progress by using it in response events, for example HTTP_RESPONSE, USER_RESPONSE, etc.

Fix:
TMM does not crash no matter when the server-side detach is triggered.

851477-1 : Memory allocation failures during proxy initialization are ignored leading to TMM cores

Component: Local Traffic Manager

Symptoms:
Memory allocation failures during proxy initialization are ignored. TMM cores when trying to access uninitialized memory.

Conditions:
-- HTTP or HTTP/2 virtual server with httprouter profile.
-- Low memory or fragmented memory on the system when configuration is being loaded.

Impact:
TMM cores when accessing uninitialized memory.

Workaround:
No workaround.

Fix:
Memory allocation failures are now detected and virtual server ends up in DENY state. No connections are accepted in this state.

851445-1 : QUIC with HTTP/3 should allow the peer to create at least 3 concurrent uni-streams

Component: Local Traffic Manager

Symptoms:
QUIC profile has a field for maximum uni-streams. This represents the number of concurrent uni-streams that the peer can create. If HTTP/3 is also configured on the virtual, then the value for uni-streams should ne >=3. The peer should be able to create at least 3 uni-streams, for control, encoder and decoder.

Conditions:
QUIC, HTTP/3, SSL and httprouter profiles are configured on the virtual. QUIC client tries to establish a connection with Big-IP. HTTP/3 is negotiated in ALPN.

Impact:
If fewer than 3 max uni-streams are configured, HTTP/3 transactions will not be successful.

Workaround:
Configure correct value of max uni-streams in QUIC profile.

Fix:
Validation added to prevent a value of less than 3 to be configured when HTTP/3 is also on the virtual.

851393-1 : Tmipsecd leaves a zombie rm process running after starting up

Component: TMOS

Symptoms:
After booting the system, you notice zombie 'rm' processes:

$ top -b | awk '$8=="Z"'
14461 root 20 0 0 0 0 Z 0.0 0.0 0:00.00 rm
14461 root 20 0 0 0 0 Z 0.0 0.0 0:00.00 rm
14461 root 20 0 0 0 0 Z 0.0 0.0 0:00.00 rm

Restarting tmipsecd will kill the zombied process but will start a new one.

Conditions:
-- IPsec is enabled.
-- Booting up the system.

Impact:
A zombie 'rm' process exists. There should be no other impact.

Workaround:
None.

851345-1 : The TMM may crash in certain rare scenarios involving HTTP/2

Component: Local Traffic Manager

Symptoms:
The HTTP/2 Gateway configuration is used without the HTTP MRF Router.

The TMM may crash in rare scenarios when a stream is being torn down.

Conditions:
-- HTTP/2 is configured in the Gateway scenario.
-- The HTTP MRF Router is not used.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
The TMM no longer crashes in rare scenarios when a stream is being torn down.

851045-1 : LTM database monitor may hang when monitored DB server goes down

Component: Local Traffic Manager

Symptoms:
When multiple database servers are monitored by LTM database (MSSQL, MySQL, PostgreSQL, Oracle) monitors and one database server goes down (such by stopping the database server process), a deadlock may occur in the LTM database monitor daemon (DBDaemon) which causes an interruption in monitoring of other database servers.
When this occurs, one database server going down may cause all monitored database servers to be marked Down for several minutes until the blocking operation times out and normal monitoring can resume.

Conditions:
This may occur when:
1. Running a version of BIG-IP or an Engineering Hotfix which contains fixes for bugs ID769309 and ID775901.
2. Stopping a monitored database server process (such as by halting the database service).

Impact:
Monitoring of database servers may be interrupted for up to several minutes, causing monitored database servers to be marked Down. This may persist for several minutes until the blocking operation times out, the backlog of blocked DB monitor threads are processed to completion, and normal DB monitoring resumes.

Workaround:
You can prevent this issue from occurring by using a different LTM monitor type (such as a TCP monitor or external monitor) to monitor the database servers.

850973-1 : Improve QUIC goodput for lossy links

Component: Local Traffic Manager

Symptoms:
QUIC gets lower goodput compared to TCP when tested on lossy links.

Conditions:
The tested links are lossy (e.g, 0.1% loss probability).

Impact:
QUIC completes the data transfer in longer time.

Workaround:
N/A

Fix:
QUIC achieves similar or better goodput compared to TCP on lossy links.

850933-1 : Improve QUIC rate pacing functionality

Component: Local Traffic Manager

Symptoms:
QUIC rate pacing becomes dis-functional under some conditions.

Conditions:
- QUIC rate pacing is in use.
- Packet size becomes slightly larger than available rate pacing bytes.

Impact:
QUIC rate pacing becomes noneffective which leads to sending data more bursty.

Workaround:
N/A

Fix:
QUIC rate pacing does not become dis-functional under some conditions anymore.

850873-3 : LTM global SNAT sets TTL to 255 on egress.

Component: Local Traffic Manager

Symptoms:
When using the global SNAT feature on LTM, IPv4 TTL/IPv6 Hop-Limit values may be erroneously set to 255/64 on egress.

Conditions:
Traffic is handled by global SNAT.

Impact:
TTL on egress is set to 255/; Hop-Limit on egress is set to 64.

Workaround:
None.

850777-3 : BIG-IP VE deployed on cloud provider may be unable to reach metadata services with static management interface config

Component: TMOS

Symptoms:
After rebooting BIG-IP Virtual Edition (VE) deployed on a cloud provider, the instance enters LICENSE INOPERATIVE state.

Errors similar to one below are seen in an LTM log:

err chmand[4770]: Curl request to metadata service failed with error(7): 'Couldn't connect to server'.

Conditions:
- Static management IP address configuration.
- Instance is restarted.

Impact:
Instance is not operational after restart.

Workaround:
After instance is fully booted, reload the license with 'reloadlic'.

Fix:
In case of 1 NIC with static route, issuing "bigstart restart mcpd" will not be enough to bring system to the licensed state, issue "reboot" instead.

850677-4 : Non-ASCII static parameter values are garbled when created via REST in non-UTF-8 policy

Component: Application Security Manager

Symptoms:
Non-ASCII parameter static values are garbled when created in a non-UTF-8 policy using REST.

Conditions:
-- The policy is configured for an encoding other than UTF-8.
-- Attempting to create non-ASCII parameter static values using REST.

Impact:
Parameter static values containing non-ASCII characters are garbled when created using REST.

Workaround:
Use UTF-8.

Fix:
This release supports REST access in non-UTF-8 policies.

850673-1 : BD sends bad ACKs to the bd_agent for configuration

Component: Application Security Manager

Symptoms:
-- The bd_agents stops sending the configuration in the middle of startup or a configuration change.

-- The policy may be incomplete in the bd causing incorrect enforcement actions.

Conditions:
This is a rarely occurring issue, and the exact conditions that trigger it are unknown.

Impact:
-- The bd_agent hangs or restarts, which may cause a complete ASM restart (and failover).

-- A partial policy may exist in bd causing improper enforcement.

Workaround:
-- Unassign and reassign the policy.

-- if unassign/reassign does not help, export and then reimport the policy.

Fix:
Fixed inconsistency scenario between bd and bd_agent.

850641-2 : Incorrect parameter created for names with non-ASCII characters in non-UTF8 policies

Component: Application Security Manager

Symptoms:
An incorrect parameter is created for names with non-ASCII characters, e.g., a parameter with Chinese characters in the name in a BIG-IP encoding policy.

Conditions:
Non-UTF8 policy parameters created using the GUI.

Impact:
The BIG-IP system does not enforce these parameters, and the list of parameters is not rendered correctly.

Workaround:
Create the parameter using REST API.

Fix:
Parameters are now created correctly in the GUI for any policy encoding and any characters in the parameter name.

850509-1 : Zone Trusted Signature inadequately maintained, following change of master key

Component: Global Traffic Manager (DNS)

Symptoms:
During config load or system start-up, you may see the following error:

-- 01071769:3: Decryption of the field (privatekey) for object (13079) failed.
Unexpected Error: Loading configuration process failed.

In some instances, other errors resembling the following may appear:

-- Failed to sign zone transfer query for zone DNSZONE01 using TSIG key zone01key.pl.

-- Failed to transfer DNSZONE01 from 203.0.113.53, will attempt IXFR (Retry).

Conditions:
-- TSIG keys are present in the device configuration.
-- The device's master key is changed.

Impact:
Unable to view TSIG keys. Configuration cannot be loaded. Failures of DNS zone transfers may occur.

Workaround:
None.

Fix:
When master key changes, TSIG keys are now properly re-encrypted, so this problem no longer exists.

850277-1 : Memory leak when using OAuth

Component: Access Policy Manager

Symptoms:
Tmm memory usage keeps going up when passing multiple HTTP requests through a kept-alive TCP connection carrying an OAuth token as bearer in the Authorization header.

Conditions:
-- Multiple HTTP requests through a kept-alive TCP connection.
-- Requests carry an OAuth token as bearer in the Authorization header.

Impact:
Memory leak occurs in which tmm memory usage increases.

Workaround:
None.

850193-4 : Microsoft Hyper-V hv_netvsc driver unevenly utilizing vmbus_channel queues

Component: TMOS

Symptoms:
-- Uneven unic channel distribution and transmit errors (tx_errcnt) seen in /proc/unic.
-- Packet loss and increased retransmissions under load.

Conditions:
BIG-IP Virtual Edition (VE) in Hyper-V or Azure Cloud.

Impact:
-- Reduced throughput.
-- Packet loss and increased retransmissions under load.

Workaround:
None.

850145-1 : Connection hangs since pipelined HTTP requests are incorrectly queued in the proxy and not processed

Component: Local Traffic Manager

Symptoms:
First HTTP request on a connection creates a connection to the server. Subsequent pipelined requests should be processed and use the established connection to the server. However, the requests were queued in the proxy and not processed resulting in connection hang.

Conditions:
- HTTP or HTTP/2 virtual server with httprouter profile.
- HTTP/1.1 connections with the client and server.
- Pipelined HTTP requests.

Impact:
Connection hangs and is eventually reset.

Workaround:
No workaround.

Fix:
If a connection to the server has been established, pipelined requests are now processed immediately and not queued.

849405-2 : LTM v14.1.2.1 does not log after upgrade★

Component: TMOS

Symptoms:
After upgrading to v14.1.2.1, logs are not generated and sysstat.service is not running.

Conditions:
-- Upgrade from BIG-IP v12.1.x (which uses CentOS 6) to BIG-IP v14.1.2.1 or later (which uses CentOS 7).
-- The issue is momentary and is not always reproducible.

Impact:
Logs are not generated and sysstat.service is not running.

Workaround:
Once the BIG-IP system starts up, check for failed services:

systemctl list-units --failed

If results show sysstat.service as FAILED, run the following command:

restorecon -Rv /var/log/sa6 && systemctl start sysstat

849157-2 : An outgoing SCTP connection that retransmits the INIT chunk the maximum number of times does not expire and becomes stuck

Component: TMOS

Symptoms:
The outgoing SCTP connection does not expire after attempting to INIT the maximum number of times. It then becomes stuck and does not expire when it reaches its idle-timeout, and cannot be manually deleted.

Conditions:
An outgoing SCTP connection is permitted to attempt the INIT retransmit the maximum number of times configured with no responses (accepting or aborting) from the target endpoint.

Impact:
Stale SCTP connections are left in the system and start to use up memory. Traffic may be interrupted in certain configurations, as the system thinks it is still attempting to bring up the lost SCTP connection and does not ever try to create a new one.

Workaround:
To clear the stale connections, restart tmm:
bigstart restart tmm

Note: Restarting tmm causes an interruption to traffic.

Fix:
SCTP connections now expire properly after the maximum number of INITs have been attempted and can no longer get stuck in this case.

849085-1 : Lines with only asterisks filling message and user.log file

Component: TMOS

Symptoms:
/var/log/message and /var/log/user.log files have lines that only contain asterisks.

For example:

Nov 12 10:40:57 bigip1 **********************************************

Conditions:
Snmp query an OID handled by sflow, for example:

snmpwalk -v2c -c public localhost SNMPv2-SMI::enterprises.14706.1.1.1

Impact:
The impact is cosmetic only, however it could make reading the logs more difficult if the sflow snmp tables are constantly being queried.

Workaround:
You have two options:
-- Filter out all sflow_agent log messages
-- Filter out all messages that contain a newline '\n' or carriage return character '\r'.

Both workarounds are done by editing the syslog template, this means that if the you upgrades, you must edit the template again to reinstate the workaround.

=============================================
Solution #1 - Filter out all sflow_agent logs:

1) remount /usr as read+write:
    mount -o rw,remount /usr

2) Make a backup copy of the template:
    cp /usr/share/defaults/config/templates/syslog.tmpl /usr/share/defaults/config/templates/syslog.tmpl.orig

3) Add write permissions to the template:
    chmod +w /usr/share/defaults/config/templates/syslog.tmpl

4) Add the filter to syslog.tmpl

4a) Open syslog.tmpl for edit:
vi /usr/share/defaults/config/templates/syslog.tmpl

4b) Add the new filter after the filter f_messages:
filter f_not_sflow {
not match ("sflow_agent" value("$PROGRAM"));
};

  For example:
filter f_messages {
level(UNIX_CONFIG_SYSLOG_REPLACE_MESSAGESFROM..UNIX_CONFIG_SYSLOG_REPLACE_MESSAGESTO)
and not facility(auth, authpriv, cron, daemon, mail, news)
and not message("WA");
};

filter f_not_sflow {
not match ("sflow_agent" value("$PROGRAM"));
};

4c) Add the filter to the log that sends all source local message to the syslog pipe:
log {
source(local);
filter(f_not_sflow);
destination(d_syslog_pipe);
}

5) Save the changes and quit vi.

6) In order for the BIG-IP system to write out the syslog conf with the modified template, you must change the syslog configuration. To do so, use tmsh to modify the 'daemon-from' to 'info' and then back to the default of 'notice':
tmsh modify /sys syslog daemon-from info
tmsh modify /sys syslog daemon-from notice

7) Ensure the changes were written to /etc/syslog-ng/syslog-ng.conf.

8) remount /usr as read-only
    mount -o ro,remount /usr

=============================================
Solution #2 - Filter out all messages with \n or \r:

1) remount /usr as r+w:
    mount -o rw,remount /usr

2) Make a backup copy of the template:
    cp /usr/share/defaults/config/templates/syslog.tmpl /usr/share/defaults/config/templates/syslog.tmpl.orig

3) Add write permissions to the template:
    chmod +w /usr/share/defaults/config/templates/syslog.tmpl

4) Add the filter to syslog.tmpl:

4a) Open syslog.tmpl for edit:
    vi /usr/share/defaults/config/templates/syslog.tmpl

4b) Add the new filter after the filter f_messages:
filter f_no_multi_line {
not (message('\n') or message('\r'));
    };

   For example:
filter f_messages {
level(UNIX_CONFIG_SYSLOG_REPLACE_MESSAGESFROM..UNIX_CONFIG_SYSLOG_REPLACE_MESSAGESTO)
and not facility(auth, authpriv, cron, daemon, mail, news)
and not message("WA");
};

filter f_no_multi_line {
not (message('\n') or message('\r'));
    };

4c) Add the filter to the log that sends all source local message to the syslog pipe:
log {
source(local);
filter(f_no_multi_line);
destination(d_syslog_pipe);
}

5) Save the changes and quit vi.

6) In order for the BIG-IP system to write out the syslog conf with the modified template, you must change the syslog configuration. To do so, use tmsh to modify the 'daemon-from' to 'info' and then back to the default of 'notice':

tmsh modify /sys syslog daemon-from info
tmsh modify /sys syslog daemon-from notice

7) Ensure the changes were written to /etc/syslog-ng/syslog-ng.conf.

8) remount /usr as read-only:
    mount -o ro,remount /usr

Fix:
The sflow log message that was a multiline message has been changed so that it is no longer multiline.

848777-3 : Configuration for virtual server using shared object address-list in non-default partition in non-default route-domain does not sync to peer node.

Component: Local Traffic Manager

Symptoms:
Shared object address-list in non-default partition in non-default route-domain does not sync to peer node. The system reports the following exceptions when such an issue occurs:

-- err mcpd[4941]: 0107004d:3: Virtual address (/TestwithRD1/0.0.0.0%1) encodes IP address (0.0.0.0%1) which differs from supplied IP address field (0.0.0.0).

-- err mcpd[4941]: 01071488:3: Remote transaction for device group /Common/DG1 to commit id 500 6754270728594498269 /Common/bigiptest1 0 failed with error 0107004d:3: Virtual address (/TestwithRD1/0.0.0.0%1) encodes IP address (0.0.0.0%1) which differs from supplied IP address field (0.0.0.0).

Conditions:
-- Create custom partition.
-- Create custom route-domain.
-- Change custom partition.
-- Create address list in non-default route domain.
-- Create virtual server with previously created address list and any TCP port, or port list.
-- Now, try to Sync to high availability (HA) peer.

Impact:
Sync fails with error. Configuration does not sync to peer node.

On VIPRION systems this may cause mcpd on a secondary blade to crash and fail to come up.

Workaround:
None

Fix:
Configuration now syncs to peer node successfully.

848445-1 : Global/URL/Flow Parameters with flag is_sensitive true are not masked in Referer★

Solution Article: K86285055

Component: Application Security Manager

Symptoms:
Global/URL/Flow Parameters with flag is_sensitive true are not masked in referrer and their value may be exposed in logs.

Conditions:
Global/URL/Flow Parameters with flag is_sensitive true are defined in the policy. In logs, the value of such parameter will be masked in QS, but will be exposed in the referrer.

Impact:
The parameter will not be masked in 'Referer' value header in logs, although it is masked in 'QS' string.

Workaround:
Can defined the parameters as global sensitive parameters.

Fix:
After the fix, such parameters will be treated like global sensitive parameters and will be covered also in the Referer

848405-2 : TMM may consume excessive resources while processing compressed HTTP traffic

Solution Article: K26244025

847325-3 : Changing a virtual server that uses a OneConnect profile can trigger incorrect persistence behavior.

Component: Local Traffic Manager

Symptoms:
-- High tmm CPU utilization.
-- Stalled connections.
-- Incorrect persistence decisions.

Conditions:
-- A OneConnect profile is combined with certain persist profiles on a virtual server.

-- The virtual server configuration is changed while there is an ongoing connection to the virtual server. Any connections that make a request after the configuration change can be affected.

-- The persistence types that are affected are:
   - Source Address (but not hash-algorithm carp)
   - Destination Address (but not hash-algorithm carp)
   - Universal
   - Cookie (only cookie hash)
   - Host
   - SSL session
   - SIP
   - Hash (but not hash-algorithm carp)

Impact:
-- High tmm CPU utilization.
-- Stalled connections.
-- Incorrect persistence decisions.

Workaround:
None.

Fix:
Changing a virtual server that uses a OneConnect profile no longer triggers incorrect persistence behavior.

846917-1 : lodash Vulnerability: CVE-2019-10744

Solution Article: K47105354

846713-1 : Gtm_add does not restart named

Component: Global Traffic Manager (DNS)

Symptoms:
Running gtm_add failed to restart the named daemon.

Conditions:
Run gtm_add to completion.

Impact:
Named is not restarted. No BIND functionality.

Workaround:
Restart named:
bigstart start named

Fix:
Fixed an issue preventing 'named' from restarting after running the gtm_add script.

846601-4 : Traffic classification does not update when an inactive slot becomes active after upgrade★

Component: Traffic Classification Engine

Symptoms:
VIPRION platforms have an automated process of joining a newly inserted blade to a cluster. TMOS install, licensing, and configuration including iAppLX are synchronized from primary to the newly inserted blade automatically without manual intervention. Traffic classification update is not occurring as expected under these conditions.

Conditions:
-- Traffic classification configured.
-- Update installation.
-- VIPRION blade is inactive, and later comes online.

Impact:
Traffic policies/rules related to updated installation do not work on inactive slot when it returns to the online state.

Workaround:
To prevent this issue from occurring, ensure that all blades are online when installation begins.

If you insert a blade, run config sync manually from the active blade.

Fix:
Upgrade script now initiates install when the slot becomes active.

846441-2 : Flow-control is reset to default for secondary blade's interface

Component: TMOS

Symptoms:
When a secondary blade is a new blade or is booted without a binary db, the LLDP settings on the blade's interface is reset to default.

Conditions:
Plug in a new secondary blade, or reboot a blade (that comes up as secondary) without a binary db.

Impact:
The flow-control setting is reset to default (tx-rx).

Workaround:
Reload the configuration on the primary blade.

846365-1 : TMM may crash while processing IP traffic

Solution Article: K35750231

846217-3 : Translucent vlan-groups set local bit in destination MAC address

Component: Local Traffic Manager

Symptoms:
Translucent vlan-groups may set the locally-unique bit in a destination MAC address when sending traffic to a pool member/client.

Conditions:
On versions earlier than 15.0.0:
- Translucent vlan-group is in use.

On v15.0.0 and later:
-- Translucent vlan-group is in use.
-- The connection.vgl2transparent db variable is enabled.

Impact:
Traffic handled by translucent vlan-groups may not work properly.

Workaround:
On versions earlier than 15.0.0, there is no workaround.

-- On version 15.0.0 and later, you can disable the connection.vgl2transparent db variable to mitigate the problem:

tmsh modify sys db connection.vgl2transparent value disable

Note: connection.vgl2transparent is disabled by default.

846181-3 : Request samples for some of the learning suggestions are not visible

Component: Application Security Manager

Symptoms:
Learning suggestions created from single request do not show source 'request log' in the 'Suggestion' GUI section.

Conditions:
'Learning Suggestion' created from only one 'Request Log' record.

Impact:
Learning suggestions created from single request does not show source 'request log' in the 'Suggestion' GUI section

Workaround:
None.

846157-1 : TMM may crash while processing traffic on AWS

Solution Article: K01054113

846137-4 : The icrd returns incorrect route names in some cases

Component: TMOS

Symptoms:
The icrd returns an incorrect route names when a '.' (dot, or period) is present in the subPath, as it treats the subPath as an IP address and the leaf name as a subnet and considers its name as a whole. Also the subPath field is missed in the response route object. This happens only in the case of curl request.

Conditions:
-- The subPath contains a '.' in it.
-- A curl request is made.

Impact:
Result information is not compatible with actual result.

Workaround:
None.

Fix:
The system now verifies whether or not the leafname a numeric valuel, so this issue no longer occurs.

846073-1 : Installation of browser challenges fails through Live Update

Component: Application Security Manager

Symptoms:
Live Update of Browser Challenges fails installation.

Live Update provides an interface on the F5 Downloads site to manually install or configure automatic installation of various updates to BIG-IP ASM components, including ASM Attack Signatures, Server Technologies, Browser Challenges, and others.

Conditions:
-- From the F5 Downloads side, select a software version.
-- Click BrowserChallengesUpdates.
-- Attempt to download and install Download BrowserChallenges<version_number>.im.

Note: Browser Challenges perform browser verification, device and bot identification, and proactive bot defense.

Impact:
Browser Challenges update file cannot be installed.

Workaround:
None.

Fix:
Browser Challenges update file can now be installed via Live Update.

846057-3 : UCS backup archive may include unnecessary files

Component: Application Security Manager

Symptoms:
UCS backup archive file size is much larger than UCS files in previous releases.

Conditions:
-- UCS backup process finishes with failure and does not clean temporary files.
-- A second UCS backup is attempted.

Impact:
Those files are included in the UCS archive, which results in an unusually large UCS backup files.

Workaround:
Before running the UCS backup process, remove directories:

/var/tmp/ts_db.save_dir_*.cstmp/

845333-6 : An iRule with a proc referencing a datagroup cannot be assigned to Transport Config

Component: Local Traffic Manager

Symptoms:
If you try to assign an iRule to a Transport Config, and if the iRule has a proc that references a datagroup, the assignment fails with an error:
01070151:3: Rule [/Common/test2] error: Unable to find value_list (datagroup) referenced at line 6: [class lookup "first" datagroup]

Conditions:
-- Assign an iRule to a Transport Config.
-- The iRule has a proc.
-- The proc references a datagroup.

Impact:
Validation fails. An iRule with a proc referencing a datagroup cannot be assigned to Transport Config objects.

Workaround:
Make the datagroup a Tcl variable to bypass validation.

Fix:
Validation can recognize the datagroup on Transport Config objects.

845313-3 : Tmm crash under heavy load

Component: Policy Enforcement Manager

Symptoms:
Tmm crashes.

Conditions:
-- BIG-IP PEM is licensed and configured.
-- Heavy traffic is received by PEM virtual server.
-- The traffic pattern goes through subscriber add/delete frequently.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
Fixed a tmm crash related to PEM subscriber IDs.

844781-3 : [APM Portal Access] SELinux policy does not allow rewrite plugin to create web applications trace troubleshooting data collection

Component: Access Policy Manager

Symptoms:
SELinux policy does not allow the rewrite plugin to create a directory and write troubleshooting data into /var/tmp/WebAppTrace.

Conditions:
Collecting Portal Access web applications traces per K13384: Performing a web applications trace (11.x - 14.x) :: https://support.f5.com/csp/article/K13384

Impact:
Cannot collect Portal Access web applications troubleshooting data as it described in in that AskF5 Article.

Workaround:
Connect via SSH using the root account and run this command:
restorecon -Rv /var/tmp/WebAppTrace/

Fix:
Fixed an issue with an SELinux policy blocking Portal Access from processing web applications traces.

844689-1 : Possible temporary CPU usage increase with unusually large named.conf file

Component: Global Traffic Manager (DNS)

Symptoms:
You might see occasional and temporary CPU usage increases when named.conf file is unusually large.

Conditions:
Unusually large named.conf file and zones are checked for updates (when the SOA expires).

Impact:
When a zone file is updated, a downstream effect is the ZoneRunner process to parse again the named.conf file. The parsing of an unusually large file may cause a temporary increase in CPU usage.

Workaround:
None.

Fix:
ZoneRunner does not issue a reload command when zones are checked for updates, so no CPU usage increases occur.

844685-1 : Per-request policy is not exported if it contains HTTP Connector Agent

Component: Access Policy Manager

Symptoms:
Per-request policy cannot be exported if it contains an HTTP Connector agent.

Conditions:
-- Create a Per Request Policy.
-- In the sub-routine section, create a new sub-routine and
attach HTTP Connector to that sub-routine.
-- After the policy creation is done, export the policy.

Impact:
Per-request policy cannot be exported and reports an error.

Workaround:
None.

Fix:
Create a valid HTTP Connector agent in tmsh and the per request policy gets exported as expected.

844573-1 : Incorrect log level for message when OAuth client or OAuth resource server fails to generate secret.

Component: Access Policy Manager

Symptoms:
The log message when OAuth client or resource server fails to generate the secret is assigned an incorrect log level, and is incorrectly logged at the emergency level.

Conditions:
This is encountered when this message is logged by mcpd.

Impact:
Log message cannot be grouped with messages at the correct log level.

Workaround:
None.

844281-3 : [Portal Access] SELinux policy does not allow rewrite plugin to read certificate files.

Component: Access Policy Manager

Symptoms:
Java applets are not patched when accessed through APM Portal Access.

/var/log/rewrite contains error messages similar to following:
-- notice rewrite - fm_patchers/java_patcher_engine/CryptoToolsManager.cpp:568 (0x1919ab0): CryptoToolsManager :: _ReadCA() - cannot open CA file.

/var/log/auditd/audit.log contains AVC denials for rewrite on attempt to read file under /config/filestore/.

Conditions:
Java patching is enabled via rewrite profile and Portal Access resource.

Impact:
Java applets cannot be patched by APM Portal Access rewriter.

Workaround:
None.

Fix:
Fixed an issue with SELinux policy blocking Portal Access code from reading Java Patcher certificates.

844085-1 : GUI gives error when attempting to associate address list as the source address of multiple virtual servers with the same destination address

Component: TMOS

Symptoms:
With multiple virtual servers that have the same destination address, changing all of them in the GUI to use an address list as their source address will result in the last one changed failing with an error similar to:

01070344:3: Cannot delete referenced virtual address /Common/1.2.3.4.

Conditions:
-- More than one virtual server with the same destination address.
-- Changing all the virtual servers that share the same destination address to use an address list for their source address.

Impact:
Unable to change the source address of a virtual server to an address list.

Workaround:
Use TMSH to manually create a traffic-matching criteria object and assign it to the virtual server:

tmsh create ltm traffic-matching-criteria <virtual server name>_VS_TMC_OBJ destination-address-inline <destination address of virtual server> destination-port-inline <destination port of virtual server> source-address-inline 0.0.0.0 source-address-list <address list name>
}

tmsh modify /ltm virtual <virtual server name> traffic-matching-criteria <virtual server name>_VS_TMC_OBJ destination 0.0.0.0:any

843801-2 : Like-named previous Signature Update installations block Live Update usage after upgrade★

Component: Application Security Manager

Symptoms:
Signature Update installations using ASU files with the same name on versions before 14.1.0 block Live Update usage after upgrade to 14.1.0 or later.

Conditions:
The same Signature Update file is installed multiple times on the device when running a version earlier than 14.1.0.

Impact:
Signature Update cannot be installed using Live Update, and errors appear in logs.

Workaround:
1. Delete the file: /var/lib/hsqldb/live-update/live-update-import.yaml.
2. Restart tomcat:
bigstart restart tomcat

This causes pre-upgrade records for Signature Update to be lost, but does not have any other functional impact.

** Another Workaround incase the above does not solve the issue:
1. stop the tomcat server:
   > bigstart stop tomcat
2. clean the live update db :
   > cd /var/lib/hsqldb/live-update
   > rm -f liveupdatedb.*
3. remove all *.im files which are not genesis file (factory-default files):
   3.1 get the list of genesis files:
     > less /etc/live-update-genesis.yaml | grep genes | cut -d":" -f2
   3.2 go to update file directory:
     > cd /var/lib/hsqldb/live-update/update-files
   3.3 manually remove the *.im files that are not genesis
4. restart the tomcat server:
   > bigstart start tomcat

843597-1 : Ensure the system does not set the VE's MTU higher than the vmxnet3 driver can handle

Component: TMOS

Symptoms:
The vmxnet3 driver cannot handle MTUs larger than 9000 bytes. This issue can present itself in a few different ways, depending on the underlying platform. One example would be the BIG-IP failing to initialize vmxnet interfaces with messages similar to the following logged in /var/log/tmm:

notice vmxnet3[1b:00.0]: MTU: 9198
notice vmxnet3[1b:00.0]: Error: Activation command failed: 1

If the BIG-IP does successfully initialize its vmxnet interfaces, there can be unpredictable behavior (possibly with the hypervisor).

Conditions:
-- Using a BIG-IP Virtual Edition (VE) with the vmxnet3 driver.
-- If the BIG-IP is able to initialize the vmxnet interfaces: Passing packets larger than 9000 bytes.

Impact:
The BIG-IP system may not be able to initialize the vmxnet3 interfaces on startup. If it is able to do so, then packets may be dropped, or the hypervisor may crash on some platforms that do not handle this condition gracefully.

Workaround:
Modify the tmm_init.tcl file, adding the following line:

ndal mtu 9000 15ad:07b0

Fix:
The software now ensure that the default setting for the vmxnet3 driver MTU is 9000, which prevents the issue from occurring.

842989-6 : PEM: tmm could core when running iRules on overloaded systems

Component: Policy Enforcement Manager

Symptoms:
When sessions usage iRules are called on an already overloaded system it might crash.

Conditions:
Session iRule calls on heavily overloaded BIG-IP systems.

Impact:
Tmm restarts. Traffic disrupted while tmm restarts.

Workaround:
Reduce the load on tmm or modify the optimize the irule.

842937-6 : TMM crash due to failed assertion 'valid node'

Component: Local Traffic Manager

Symptoms:
Under undetermined load pattern TMM may crash with message: Assertion 'valid node' fail.

Conditions:
This can occur while passing traffic with the Ram Cache profile enabled on a Virtual Server. Other conditions are unknown.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Refrain from using ramcache may mitigate the problem.

Fix:
Ramcache module stops handling messages after it is teared down, so it does not attempt to use data structures which have already been deinitialized.

842865-2 : Add support for Auto MAC configuration (ixlv)

Component: TMOS

Symptoms:
Mac addresses are forced to be the same for ixlv trunks.

Conditions:
This happens when ixlv trunks are used.

Impact:
Mac addresses may not be as depicted on the device.

Workaround:
None.

Fix:
Unicast mac filters are used for ixlv trunks.

842829-1 : Multiple tcpdump vulnerabilities

Solution Article: K04367730

842717-6 : BIG-IP Edge Client for Windows vulnerability CVE-2020-5855

Solution Article: K55102004

842625-5 : SIP message routing remembers a 'no connection' failure state forever

Component: Service Provider

Symptoms:
When SIP message routing fails to route to a pool member (Triggering a MR_FAILED, MR::message status of 'no connection'), The BIG-IP system caches the failed state and continues to return this even after the pool member becomes reachable again.

Conditions:
When BIG-IP systen fails to route messages to the peer (server) due to unavailability of route or any other issues.

Impact:
The BIG-IP system is never be able to establish connection to the peer.

Workaround:
None.

Fix:
SIP message routing now recovers from a 'no connection' failure state.

842517-2 : CKR_OBJECT_HANDLE_INVALID error seen in logs and SSL handshake fails

Component: Local Traffic Manager

Symptoms:
SSL handshake fails with error in LTM logs.pkcs11d[10407]:
err pkcs11d[10407]: 01680048:3: C_Sign: pkcs11_rv=0x00000082, CKR_OBJECT_HANDLE_INVALID

Conditions:
Key created with Safenet NetHSM is used in SSL profile for virtual server. This error is seen randomly.

Impact:
SSL handshake fails.

Workaround:
Restart the PKCS11D.

842189-4 : Tunnels removed when going offline are not restored when going back online

Component: TMOS

Symptoms:
When a BIG-IP instance goes offline, any functioning tunnel is removed from the active configuration. Upon restoration to online operation, the tunnel is not automatically restored.

Conditions:
-- Configuration includes tunnels.
-- BIG-IP instance goes offline and then comes back online.

Impact:
Failure of tunnel packet traffic.

Workaround:
Manually recreate the tunnel after the BIG-IP instance has been brought back online.

Fix:
Tunnels removed when going offline are now restored when going back online.

842161-1 : Installation of Browser Challenges fails in 15.1.0

Component: Application Security Manager

Symptoms:
Browser Challenges default installation fails in 15.1.0 after upgrade or resetting back to default.

BIG-IP software v15.1.0 ships with a BrowserChallenges_20191121_043810.im file that does not have a proper encryption, and when trying to install the file via the Live Update page the following error occurs:

gpg: WARNING: unsafe ownership on homedir `/ts/share/negsig/gpg_asm_sigfile_installer'
gpg: encrypted with 1024-bit ELG key, ID 7C3E3CE5, created 2007-03-20
"asm_sigfile_installer"
gpg: Signature made Thu 21 Nov 2019 02:38:10 PM IST using RSA key ID BC67BA01
gpg: Can't check signature: No public key

Conditions:
Live Update file BrowserChallenges_20191121_043810.im has a different status than 'Currently Installed'.

Impact:
If the file 'BrowserChallenges_20191121_043810.im ' is the newest file then upgrade is not applicable.

Workaround:
None

Fix:
Browser Challenges update file can now be installed via Live Update.

842125-6 : Unable to reconnect outgoing SCTP connections that have previously aborted

Component: TMOS

Symptoms:
When an outgoing SCTP connection is created using an ephemeral port, the connection may appear to be open after an SCTP connection halt. This prevents new connections to the same endpoint, as the connection appears to already exist.

Conditions:
-- A virtual server configured with an SCTP profile.
-- An outgoing SCTP connection after an existing connection to the same endpoint has halted.

Impact:
New connections are unable to be created resulting in dropped messages.

Workaround:
None.

Fix:
SCTP connections can now be halted and recreated to the same endpoint.

841953-7 : A tunnel can be expired when going offline, causing tmm crash

Component: TMOS

Symptoms:
When the system transitions from active or next active (standby), e.g., to offline, the internal flow of a tunnel can be expired.

If the device returns to active or standby, and if the tunnel is modified, a double flow removal can cause a tmm crash.

Conditions:
-- System transitions from active or next active.
-- Tunnel is modified.
-- Device returns to active or next active mode.

Impact:
The tmm process restarts. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
The tmm process no longer crashes under these conditions.

841649-4 : Hardware accelerated connection mismatch resulting in tmm core

Component: TMOS

Symptoms:
Tmm receives an update from the ePVA for a hardware accelerated connection that is matched to the wrong correction. This can result in a tmm core, which is reported as a segment fault in the tmm log files.

Conditions:
One or more of the following:

-- A FastL4 virtual server that has hardware acceleration enabled.
-- A NAT or SNAT object without a virtual server.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Disable hardware acceleration.

841581 : License activation takes a long time to complete on Google GCE platform

Component: TMOS

Symptoms:
The license installation and activation process takes a very long time to complete.

Conditions:
- BIG-IP Virtual Edition running on Google Compute Engine (GCE) Platform.
- Activating the BIG-IP license.

Impact:
It can take 2-3 minutes to report the device is licensed and 3-4 minutes for BIG-IP system to become Active after that.

Workaround:
None.

841577-2 : iControl REST hardening

Solution Article: K20606443

841469-6 : Application traffic may fail after an internal interface failure on a VIPRION system.

Component: Local Traffic Manager

Symptoms:
Blades in a VIPRION system connect with one another over a data backplane and a management backplane.

For more information on the manner in which blades interconnect over the data backplane, please refer to K13306: Overview of the manner in which the VIPRION chassis and blades interconnect :: https://support.f5.com/csp/article/K13306.

Should an internal interface fail and thus block communication over the data backplane between two distinct blades, an unusual situation arises where different blades compute different CMP states.

For example, if on a 4-slot chassis, blades 2 and 3 become disconnected with one another, the following is TMM's computation of which slots are on-line:

slot1: slots 1, 2, 3, and 4 on-line (cmp state 0xf / 15)
slot2: slots 1, 2, and 4 on-line (cmp state 0xb / 11)
slot3: slots 1, 3, and 4 on-line (cmp state 0xd / 13)
slot4: slots 1, 2, 3, and 4 on-line (cmp state 0xf / 15)

As different slots are effectively operating under different assumptions of the state of the cluster, application traffic does not flow as expected. Some connections time out or are reset.

You can run the following command to inspect the CMP state of each slot:

clsh 'tmctl -d blade -s cmp_state tmm/cmp'

All slots should report the same state, for instance:

# clsh 'tmctl -d blade -s cmp_state tmm/cmp'
=== slot 2 addr 127.3.0.2 color green ===
cmp_state
---------
       15

=== slot 3 addr 127.3.0.3 color green ===
cmp_state
---------
       15

=== slot 4 addr 127.3.0.4 color green ===
cmp_state
---------
       15

=== slot 1 addr 127.3.0.1 color green ===
cmp_state
---------
       15

When this issue occurs, logs similar to the following example can be expected in the /var/log/ltm file:

-- info bcm56xxd[4276]: 012c0015:6: Link: 2/5.3 is DOWN
-- info bcm56xxd[4296]: 012c0015:6: Link: 3/5.1 is DOWN
-- info bcm56xxd[4296]: 012c0012:6: Trunk default member mod 13 port 0 slot 2; CMP state changed from 0xf to 0xd
-- info bcm56xxd[4339]: 012c0012:6: Trunk default member mod 13 port 0 slot 2; CMP state changed from 0xf to 0xd
-- info bcm56xxd[4214]: 012c0012:6: Trunk default member mod 13 port 0 slot 2; CMP state changed from 0xf to 0xd

And a CMP transition will be visible in the /var/log/tmm file similar to the following example:

-- notice CDP: PG 2 timed out
-- notice CDP: New pending state 0f -> 0b
-- notice Immediately transitioning dissaggregator to state 0xb
-- notice cmp state: 0xb

For more information on troubleshooting VIPRION backplane hardware issues, please refer to K14764: Troubleshooting possible hardware issues on the VIPRION backplane :: https://support.f5.com/csp/article/K14764.

Conditions:
This issue arises after a very specific type of hardware failure. The condition is very unlikely to occur and is impossible to predict in advance.

Impact:
Application traffic is impacted and fails sporadically due to a mismatch in CMP states between the blades. Failures are likely to manifest as timeouts or resets from the BIG-IP system.

Workaround:
F5 recommends the following to minimize the impact of this potential issue:

1) For all highly available configurations (e.g., A/S, A/A, A/A/S, etc.).

The BIG-IP system has functionality, in all software versions, to enact a fast failover when the conditions described occur.

To ensure this functionality will trigger, the following configuration requirements must be met:

a) The mirroring strategy must be set to 'between'.
b) A mirroring channel to the next-active unit must be up.
c) The min-up-members option must be set to the number of blades in the chassis (e.g., 4 if there are 4 blades in the chassis).

Note: It is not required to actually configure connection mirroring on any virtual server; simply choosing the aforementioned strategy and ensuring a channel is up to the next-active unit will suffice. However, note that some configurations will benefit by also configuring connection mirroring on some virtual servers, as that can greatly reduce the number of affected connections during a failover.

2) For 'regular' standalone units.

If a VIPRION system is truly standalone (no kind of redundancy whatsoever), there is no applicable failsafe action, as you will want to keep that chassis online even if some traffic is impaired. Ensure suitable monitoring of the system is in place (e.g., remote syslog servers, SNMP traps, etc.), so that a BIG-IP Administrator can react quickly in the unlikely event this issue does occur.

3) For a standalone chassis which belongs to a pool on an upstream load-balancer.

If the virtual servers of a standalone VIPRION system are pool members on an upstream load-balancer, it makes sense for the virtual servers to report unavailable (e.g., by resetting all new connection attempts) so that the upstream load-balancer can select different pool members.

An Engineering Hotfix can be provided which introduces an enhancement for this particular use-case. A new DB key is made available under the Engineering Hotfix: tmm.cdp.requirematchingstates, which takes values 'enable' and 'disable'.

The default is 'disable', which makes the VIPRION system behave as in versions without the enhancement. When set to 'enable', the VIPRION system attempts to detect this failure and, if it does, resets all new connections. This should trigger some monitor failures on the upstream load-balancer and allow it to select different pool members.

Please note you should only request the Engineering Hotfix and enable this DB key when this specific use-case applies: a standalone VIPRION system which belongs to a pool on an upstream load-balancer.

When the new feature is enabled, the following log messages in the /var/log/ltm file indicate when this begins and stops triggering:

-- crit tmm[13733]: 01010366:2: CMP state discrepancy between blades detected, forcing maintenance mode. Unable to relinquish maintenance mode until event clears or feature (tmm.cdp.requirematchingstates) is disabled.

-- crit tmm[13262]: 01010367:2: CMP state discrepancy between blades cleared or feature (tmm.cdp.requirematchingstates) disabled, relinquishing maintenance mode.

Fix:
The system now includes the enhancement for the 'standalone chassis which belongs to a pool' use-case, as discussed under the Workaround section.

841333-7 : TMM may crash when tunnel used after returning from offline

Component: TMOS

Symptoms:
TMM may crash when a tunnel is used after the unit returns from offline status.

Conditions:
-- Tunnel is configured and active.
-- Unit is transitioned from offline to online.
-- Tunnel is used after online status is restored.

Impact:
TMM crashes. Traffic disrupted while tmm restarts.

Workaround:
None.

841305-2 : HTTP/2 version chart reports are empty in GUI; error appears in GUI and reported in monpd log

Component: Application Visibility and Reporting

Conditions:
-- Create a new policy or use an existing policy.
-- Go to Security :: Reporting : Application : Charts.
-- Select weekly charts.

Impact:
Charts are empty in the GUI, and the system logs errors in monpd.

Workaround:
None.

Fix:
Fixed an issue with HTTP stats database tables.

841277-7 : C4800 LCD fails to load after annunciator hot-swap

Component: TMOS

Symptoms:
After following F5-recommended procedures for hot-swapping the left annunciator card on a C4800 chassis and replacing the top bezel, the LCD screen fails to load.

Conditions:
- C4800 chassis with 2 annunciator cards.
- Hot-swap the left annunciator card and replace the top bezel.

Impact:
-- Status light on the top bezel turns amber.
-- LCD becomes unresponsive, and continuously displays 'F5 Networks Loading...'.

Workaround:
1. Run the command:
tmsh modify sys db platform.chassis.lcd value disable

2. Wait 10 seconds.

3. Run the command:
tmsh modify sys db platform.chassis.lcd value enable.

This forces the LCD to sync back up with the VIPRION system and returns it to normal operation. The top bezel status light should turn green.

Fix:
The LCD now automatically reloads once a functioning annunciator card is inserted into the left slot and the top bezel is replaced. It may take up to 10 seconds for the LCD to return to normal functionality.

840821-1 : SCTP Multihoming not working within MRF Transport-config connections

Component: Service Provider

Symptoms:
SCTP filter fails to create outgoing connections if the peer requests multihoming. The failure may produce a tmm core.

Conditions:
Usage of SCTP multi-homing with a MRF transport-config.

Impact:
The outgoing connection is aborted or tmm may core. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
THe system is now able to create outgoing SCTP multihoming connections using a transport-config to define the connection.

840809-2 : If "lsn-legacy-mode" is set to disabled, then LSN_PB_UPDATE events are not logged

Component: Advanced Firewall Manager

Symptoms:
When subscriber info changes, the log events for LSN_PB_UPDATE are not logged.

Conditions:
If subscriber info changes, for example, if a client is sending a radius message with IMSI A - LSN_PB_UPDATE logs are observed. And later when the IMSI is changed to B and another radius message is sent from the client, then LSN_PB_UPDATE log events are not observed.

Impact:
LSN_PB_UPDATE are not logged.

Fix:
Fix will send LSN_PB_UPDATE even if subscriber info is changed

839761-1 : Response Body preview hardening

Solution Article: K12002065

839749-3 : Virtual server with specific address list might fail to create via GUI

Component: Local Traffic Manager

Symptoms:
When a user tries to create a virtual server with address list, it might fail with below shown error:

01b90011:3: Virtual Server /Common/VS1's Traffic Matching Criteria /Common/testvs1 illegally shares destination address, source address, service port, and ip-protocol with Virtual Server /Common/testvs2 destination address, source address, service port.

Conditions:
-- One or more virtual servers that were created via the GUI already exist on the BIG-IP system.
-- Attempt to use the GUI to create another virtual server with address list.

Impact:
Cannot create the virtual server.

Fix:
You can now create virtual servers with address lists directly from the GUI.

839597-6 : Restjavad fails to start if provision.extramb has a large value

Component: Device Management

Symptoms:
Rolling restarts of restjavad occur every few seconds and the following messages are seen in the daemon log:

daemon.log: emerg logger: Re-starting restjavad

The system reports similar message at the command line.

No obvious cause is logged in rest logs.

Conditions:
-- System DB variable provision.extramb has an unusually high value*:
+ above ~2700-2800 MB for v12.1.0 and earlier.
+ above ~2900-3000 MB for v13.0.0 and later.

-- On v13.0.0 and later, sys db variable restjavad.useextramb needs to have the value 'true'

*A range of values is shown. When the value is above the approximate range specified, constant restarts are extremely likely, and within tens of MB below that point may be less frequent.

To check the values of these system DB varaiables use:
tmsh list sys db provision.extramb

tmsh list sys db restjavad.useextramb

Impact:
This impacts the ability to use the REST API to manage the system.

Workaround:
If needing sys db restjavad.useextramb to have the value 'true', keep sys db provision.extramb well below the values listed (e.g., 2000 MB work without issue).

To set that at command line:

tmsh modify sys db provision.extramb value 2000

If continual restarts of restjavad are causing difficulties managing the unit on the command line:

1. Stop restjavad (you can copy this string and paste it into the command line on the BIG-IP system):
tmsh stop sys service restjavad

2. Reduce the large value of provision.extramb if necessary.

3. Restart the restjavad service:
tmsh start sys service restjavad

Fix:
Restjavad memory is now capped at a sensible maximum.

If provision.extramb is set to a value higher than 2500 MB it will be considered to be 2500 MB for the purposes of restjavad, and the system logs a message similar to the following in /var/log/ltm, where XXXX is the value of provision.extramb:

notice restjavad: JVM heap limit exceeded. Using maximum supported value of 2500 instead of provision.extramb XXXX.

839453-6 : lodash library vulnerability CVE-2019-10744

Solution Article: K47105354

839401-1 : Moving a virtual-address from one floating traffic-group to another does not send GARPs out.

Component: Local Traffic Manager

Symptoms:
Gratuitous ARPs (GARPs) are not sent out when moving a virtual-address from one floating traffic-group to another (e.g., from traffic-group-1 to traffic-group-2).

Conditions:
-- Moving a virtual-address from one floating traffic-group to another.
-- The traffic-groups are active on different devices.

Impact:
Application traffic does not immediately resume after the virtual-address is moved. Instead, the surrounding network devices have to ARP out for the IP address after reaching a timeout condition.

Workaround:
After moving the virtual-address, disable and then re-enable the ARP setting for the virtual-address. This forces GARPs to be sent out.

Fix:
GARPs are sent out as expected.

839245-3 : IPother profile with SNAT sets egress TTL to 255

Component: Local Traffic Manager

Symptoms:
BIG-IP may set TTL to 255 on forwarded packets.

Conditions:
Virtual-server with ipother profile and SNAT configured.

Impact:
Traffic leaves with egress TTL set to 255.

Workaround:
None.

Fix:
TTL is now decremented by 1 on forwarded packets.

839145-3 : CVE-2019-10744: lodash vulnerability

Solution Article: K47105354

839121-3 : A modified default profile that contains SSLv2, COMPAT, or RC2 cipher will cause the configuration to fail to load on upgrade★

Solution Article: K74221031

Component: TMOS

Symptoms:
After upgrading, the configuration fails to load and throws an error about a profile that is located in profile_base.conf using SSLv2. However, upon inspection you will notice that there is no SSLv2 cipher in use.

Conditions:
The upgrade failure is seen when all the following conditions are met:

-- BIG-IP system with SSLv2 as the ciphers option in an SSL profile running software v12.x/v13.x.
-- Upgrading to a version that reports an error when using SSLv2, such as v14.x/v15.x.
(1) Modified root SSL profile (such as /Common/clientssl or /Common/serverssl) is present in bigip.conf.
(2) The modified root SSL profile contains an invalid keyword 'COMPAT', 'SSLv2', or 'RC2' in its ciphers
(3) The default profiles whose ciphers inherited from the root profile are not present in bigip.conf. The error for invalid ciphers is reported against these profiles.

Impact:
Beginning in version 14.x, SSLv2 has been changed from being a warning condition, and now prevents the configuration from loading. In most cases the upgrade script properly removes this, so there is no issue. However, if this issue is encountered, the configuration fails to load after upgrading.

Workaround:
There are two possible workarounds:

-- The easiest way to work around this is to comment out the modified base profile from bigip.conf and then run the command: tmsh load sys config.

-- If you are post upgrade, you can use sed to remove the !SSLv2 entries. To do so, perform these steps on the standby device:

1. cp /config/bigip.conf /config/backup_bigip.conf
2. Run: sed -i "s/$\!SSLv2:\|:\!SSLv2$//g" /config/bigip.conf
3. tmsh load /sys config

838909-3 : BIG-IP APM Edge Client vulnerability CVE-2020-5893

Solution Article: K97733133

838901-4 : TMM receives invalid rx descriptor from HSB hardware

Component: TMOS

Symptoms:
The HSB hardware returns an invalid receive (rx) descriptor to TMM. This results in a TMM core and can be seen as a SIGSEGV in the TMM logs. This also might result in continuous restarts of TMM, resulting in subsequent SIGSEGVs reported in the TMM logs until the unit is manually recovered.

Conditions:
The exact conditions under which this occurs are unknown.

Impact:
Traffic disrupted while tmm restarts. This may result in continuous TMM restarts until the BIG-IP system is rebooted.

Workaround:
None.

838881-1 : APM Portal Access Vulnerability: CVE-2020-5853

Solution Article: K73183618

838861-3 : TMM might crash once after upgrading SSL Orchestrator★

Component: Access Policy Manager

Symptoms:
TMM might crash due to SIGABRT.

Conditions:
-- Session check agent is present in APM per-request policy.
-- APM Access Profile scope changes during SSL Orchestrator upgrade.
-- This issue can occur for SSL Orchestrator upgrades from 14.x to 15.x and above.

Impact:
TMM might crash once. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
Session check agent now exits and terminates the flow.

838713 : LCD buttons are not responsive during End User Diagnostics 'Front Port LED Test'

Component: TMOS

Symptoms:
During EUDSF3.9.1 Front Port LED Test on BIG-IP iSeries platforms, the LCD buttons are unresponsive.

Conditions:
-- Running the EUDSF3.9.1 Front Port LED Test.
-- Using BIG-IP iSeries platforms.

Impact:
Cannot execute the EUDSF3.9.1 Front Port LED Test on BIG-IP iSeries platforms..

Workaround:
Continue to use EUDSF 3.7.0. EUDSF3.9.1 is required only for iSeries i10010, where the test does not have this issue.

Fix:
The version EUD3.9.2 release contains a fix for this issus.

838709-4 : Enabling DoS stats also enables page-load-time

Component: Application Visibility and Reporting

Symptoms:
If collect-all-dos-statistic is enabled, AVR 'promises' to the client a JavaScript injection in the response by adding the expected length of the JavaScript to the Content-length header.

Conditions:
Security :: reporting : settings : collect-all-dos-statistic is enabled.

Impact:
In addition to collecting DoS statistics, JavaScript injection also occurs.

Workaround:
Can use iRules to control which pages should get the JavaScript injection.

For detailed information, see K13859: Disabling CSPM injection with iRules :: https://support.f5.com/csp/article/K13859.

Fix:
Changed the condition that insert the JavaScript injection in case that "collect all dos stats" is enabled.

838685-4 : DoS report exist in per-widget but not under individual virtual

Component: Application Visibility and Reporting

Symptoms:
'Undefined entity dosl7_vip was used' error message is reported on widgets whenever a 'Virtual Server' filter is selected on the 'Security :: Reporting : DoS : Custom Page' GUI page.

Conditions:
-- Navigate to Security :: Reporting : DoS : Custom Page in the GUI.
-- Filter widgets results with specific 'Virtual Server'.

Impact:
GUI widgets report errors and cannot show stats.

Workaround:
This GUI fix requires modifying a single PHP file in one location, which you can do directly on your BIG-IP system with a few bash commands:

1. Backup the file '/var/ts/dms/amm/common/ovw/dos_custom_overview_commons.php':
   $ cp /var/ts/dms/amm/common/ovw/dos_custom_overview_commons.php /shared/

2. Change permissions to allow modifying it:
   $ chmod +w /var/ts/dms/amm/common/ovw/dos_custom_overview_commons.php

3. Change the file to include the fix:
   $ sed -i 's/dosl7_vip/vip/g' /var/ts/dms/amm/common/ovw/dos_custom_overview_commons.php
   $ sed -i "s/ANALYTICS_MOD_DNS_DOS => 'vip'/ANALYTICS_MOD_DNS_DOS => 'dns_vip'/g" /var/ts/dms/amm/common/ovw/dos_custom_overview_commons.php

4. Verify that the fix is as expected:
   $ vimdiff /var/ts/dms/amm/common/ovw/dos_custom_overview_commons.php /shared/dos_custom_overview_commons.php

   (** You should see two lines modified:
       1. ANALYTICS_MOD_DOSL7 => 'dosl7_vip' to ANALYTICS_MOD_DOSL7 => 'vip'.
       2. ANALYTICS_MOD_DNS_DOS => 'vip' to ANALYTICS_MOD_DNS_DOS => 'dns_vip')

5. Revert permissions of the file:
   $ chmod -w /var/ts/dms/amm/common/ovw/dos_custom_overview_commons.php

6. Log out and log back into the GUI, so that the new version of the file loads.

Fix:
GUI configuration for the 'Virtual Server' filter is fixed with the correct dimension name.

838677-1 : lodash library vulnerability CVE-2019-10744

Solution Article: K47105354

838297-2 : Remote ActiveDirectory users are unable to login to the BIG-IP using remote LDAP authentication

Component: TMOS

Symptoms:
Under certain conditions, the BIG-IP system requires you to change your password on every login.

Furthermore, the login then fails, and loops endlessly asking for the password, even though the password has not expired.

Conditions:
-- BIG-IP 14.0.0 and later.
-- LDAP authentication is used for remote users.
-- Active Directory (AD) user account has shadowLastChange attribute with a value of 0 (or anything lower than the number of days since 1-1-1970).

Impact:
Remote AD BIG-IP users are unable to login to the BIG-IP system using remote LDAP authentication

Workaround:
Clear the value of shadowLastChange within AD.

837837-2 : F5 SSH server key size vulnerability CVE-2020-5917

Solution Article: K43404629

837773-7 : Restjavad Storage and Configuration Hardening

Solution Article: K12936322

837637-1 : Orphaned bigip_gtm.conf can cause config load failure after upgrading★

Solution Article: K02038650

Component: Global Traffic Manager (DNS)

Symptoms:
Configuration fails to load after upgrade with a message:

01420006:3: Can't find specified cli schema data for x.x.x.x

Where x.x.x.x indicates an older version of BIG-IP software than is currently running.

Conditions:
-- Orphaned bigip_gtm.conf from an older-version. This can occur if GTM/DNS is provisioned, then deprovisioned before upgrade, leaving behind a bigip_gtm.conf with the old schema.

-- Upgrading to a new version that does not contain the schema for the old version that the bigip_gtm.conf uses.

Impact:
Configuration fails to load after upgrade.

Workaround:
Before upgrading:

If the configuration in bigip_gtm.conf is not needed, then it can be renamed (or deleted) before upgrading:

   mv /config/bigip_gtm.conf /config/bigip_gtm.conf.id837637
   tmsh load sys config gtm-only

After upgrading (i.e., with the system in the Offline state) services must be restarted to pick up the change:

   mv /config/bigip_gtm.conf /config/bigip_gtm.conf.id837637
   tmsh restart sys service all

837617-1 : Tmm may crash while processing a compression context

Component: Local Traffic Manager

Symptoms:
Tmm crashes on segfault.

Conditions:
Conditions are unknown.

Impact:
Traffic disrupted while tmm restarts.

837333-1 : User cannot update blocking response pages after upgrade★

Component: Application Security Manager

Symptoms:
Response Pages screen is stuck after user tries to save changes

Conditions:
The device is upgraded from a pre-15.1 release to a newer version

Impact:
Impossible to update blocking response pages using the GUI

Workaround:
Blocking pages can be updated using the REST API

Fix:
Database upgrade script was fixed to preserve correct Server Technology settings that lead to errors in Response Pages screen

837233-3 : Application Security Administrator user role cannot use GUI to manage DoS profile

Component: Advanced Firewall Manager

Symptoms:
BIG-IP GUI users configured with the Application Security Administrator role are not allowed to manage DoS profile page and settings.

Conditions:
This affects users logged in with the Application Security Administrator role

Impact:
DoS profiles cannot be edited from the GUI.

Workaround:
You can use either workaround:

-- Change the user role to one that allows managing DoS profile.
-- Have the Application Security Administrator user edit profiles from tmsh.

Fix:
The roles Application Security Operations Administrator and Application Security Administrator can now manage DoS profiles in the GUI.

836357-5 : SIP MBLB incorrectly initiates new flow from virtual IP to client when existing flow is in FIN-wait2

Component: Service Provider

Symptoms:
In MBLB/SIP, if the BIG-IP system attempts to send messages to the destination over a TCP connection that is in FIN-wait2 stage, instead of returning a failure and silently dropping the message, the BIG-IP system attempts to create a new TCP connection by sending a SYN. Eventually, the attempt fails and causes the connection to be aborted.

Conditions:
-- This happens on MBLB/SIP deployment with TCP.
-- There is message sent from the server to the BIG-IP system.
-- The BIG-IP system forwards the message from the server-side to client-side.
-- The destination flow (for the BIG-IP system to forward the message to) is controlled by 'node <ip> <port>' and 'snat <ip> <port>' iRules command.
-- The destination flow is in the FIN-wait2 stage.

Impact:
This causes the BIG-IP system to abort the flow that originates the message.

Workaround:
None.

Fix:
SIP MBLB correctly initiates a new flow from a virtual IP to the client when an existing flow is in the FIN-wait2 stage.

835381-3 : HTTP custom analytics profile 'not found' when default profile is modified

Component: Application Visibility and Reporting

Symptoms:
Adding SMTP config to default HTTP analytics profile results in config parsing failures for child profiles that are assigned to virtual servers. Removing SMTP config resolves the issue. The 'tmsh load sys config' command fails with the following error:

-- 01020036:3: The requested profile (/Common/child-analytics) was not found.
-- Unexpected Error: Validating configuration process failed.

Conditions:
-- Child analytics profile applied to virtual server.
-- Parent analytics profile contains SMTP config.

Impact:
Loading configuration might fail.

Workaround:
None.

Fix:
The system now avoids setting SMTP field for child profiles on MCP validation when in load/merge phase.

835309-1 : Some strings on BIG-IP APM Server pages are not localized

Component: Access Policy Manager

Symptoms:
Some text in APM Server pages, such as the logout page, are presented in English even when using a different language.

Conditions:
Use APM with a localized language, and certain strings for pages like logout, Webtop, or EPS, would still be in English.

Impact:
Some strings are displayed in English instead of localized language.

Workaround:
None.

Fix:
BIG-IP APM Server pages have been updated to include translations for all the affected strings.

835209-3 : External monitors mark objects down

Component: Global Traffic Manager (DNS)

Symptoms:
Object to which the external monitor is attached is marked down.

Conditions:
Executing external monitors trying to access something without appropriate permissions.

Impact:
Object to which the external monitor is attached is marked down.

Workaround:
None.

Fix:
This issue no longer occurs.

834853 : Azure walinuxagent has been updated to v2.2.42

Component: TMOS

Symptoms:
Some onboarding features are not available in the current version of walinuxagent.

Conditions:
Attempting to use a feature that is not available in the current version of the Azure walinuxagent that is included in the BIG-IP release.

Impact:
Cannot use new features in the Azure walinuxagent until the Azure walinuxagent is updated.

Workaround:
None.

Fix:
The Azure walinuxagent has been updated to v2.2.42

834533-7 : Linux kernel vulnerability CVE-2019-15916

Solution Article: K57418558

834257-1 : TMM may crash when processing HTTP traffic

Solution Article: K25400442

833685-5 : Idle async handlers can remain loaded for a long time doing nothing

Component: Application Security Manager

Symptoms:
Idle async handlers can remain loaded for a long time doing nothing because they do not have an idle timer. The sum of such idle async handlers can add unnecessary memory pressure.

Conditions:
This issue might result from several sets of conditions. Here is one:

Exporting a large XML ASM policy and then leaving the BIG-IP system idle. The relevant asm_config_server handler process increases its memory consumption and remains that way, holding on to the memory until it is released with a restart.

Impact:
Depletion of memory by lingering idle async handlers may deprive other processes of sufficient memory, triggering out-of-memory conditions and process failures.

Workaround:
-- Restart asm_config_server, to free up all the memory that is currently taken by all asm_config_server processes and to impose the new MaxMemorySize threshold:
---------------
# pkill -f asm_config_server
---------------
-- Restart asm_config_server periodically using cron, as idle handlers are soon created again.

Fix:
Idle async handlers now exit after 5 minutes of not receiving any new calls.

833213-1 : Conditional requests are served incorrectly with AAM policy in webacceleration profile

Component: WebAccelerator

Symptoms:
HTTP 1.1 allows a conditional request with header If-Modified-Since or If-Unmodified-Since to determine whether a resource changed since a specified date and time. If AAM is provisioned and its policy is assigned to a virtual server, it may incorrectly respond with 304 Not Modified, even after the resource was updated.

Conditions:
-- AAM is provisioned and webacceleration policy is attached to a virtual server.
-- Client sends a conditional request with If-Modified-Since or If-Unmodified-Since header.
-- The BIG-IP system responds from AAM cache.

Impact:
Client does not receive an updated resource.

Workaround:
Use webacceleration profile without AAM policy for resources that require conditional checks falling back into Ramcache.

Fix:
The BIG-IP system now respects If-Modified-Since or If-Unmodified-Since header and provides an appropriate response for the requested resource when compared to the date supplied in either header.

833113-6 : Avrd core when sending large messages via https

Component: Application Visibility and Reporting

Symptoms:
When sending large messages (>4KB) via HTTPs may cause avrd to core.

Conditions:
This typically happens when BIG-IP is managed by BIG-IQ and configuration is large and complex or traffic capturing is enabled.

Impact:
Messages to BIG-IQ are lost. In severe cases, analytics functionality may be unavailable due contiguous AVRD cores.

Workaround:
None.

Fix:
Fixed an avrd crash

833049-4 : Category lookup tool in GUI may not match actual traffic categorization

Component: Access Policy Manager

Symptoms:
Category Lookup agent has changed to include the IP in the categorization query. The BIG-IP TMUI does not do the same (Access Policy :: Secure Web Gateway : Database Settings : URL Category Lookup).

Conditions:
-- SWG or URLDB provisioned.
-- Run traffic with category lookup in the PRP and note the category produced.
-- Run the same URL through the GUI lookup tool or the command line tool.

Impact:
Some websites may be categorized differently depending on if the IP address is passed in or not.

Workaround:
None.

832885-1 : Self-IP hardening

Solution Article: K05975972

832881-1 : F5 Endpoint Inspection helper app is not updated

Component: Access Policy Manager

Symptoms:
F5 Endpoint Inspection helper app is not updated, but other components such as F5 VPN helper App is auto updated.

Conditions:
Use a browser to establish VPN

Impact:
End users cannot to receive bug fixe or feature enhancement updates.

Workaround:
Download and install F5 Endpoint Inspection helper from BIG-IP.

https://APM_SERVER/public/download/f5epi_setup.exe

Fix:
F5 Endpoint Inspection helper app is auto updated.

832757 : Linux kernel vulnerability CVE-2017-18551

Solution Article: K48073202

832569-3 : APM end-user connection reset

Component: Access Policy Manager

Symptoms:
When the URL being accessed exceeds a length of 8 KB, the BIG-IP resets the connection.

Conditions:
-- APM deployed with a per-request policy.
-- The per-request policy includes a category lookup.

Impact:
The APM end-user connection is reset, and the system posts an error message in /var/log/apm:

-- crit tmm[23363]: 01790601:2: [C] 10.62.118.27:65343 -> 65.5.55.254:443: Maximum URL size exceeded.

Workaround:
None.

Fix:
The URL length limit has been increased from 8 KB to 32 KB.

832021-3 : Port lockdown settings may not be enforced as configured

Solution Article: K73274382

832017-3 : Port lockdown settings may not be enforced as configured

Solution Article: K10251014

831781-4 : AD Query and LDAP Auth/Query fails with IPv6 server address in Direct mode

Component: Access Policy Manager

Symptoms:
Both AD Query and LDAP Auth/Query fails.

Conditions:
-- AD Query Agent, LDAP Auth Agent, or LDAP Query Agent is configured in Per-Session or Per-Request Policy.
-- These agents are configured in Direct mode.
-- The AD and LDAP server address is configured as IPv6 address.

Impact:
Users may not be able to login to APM, and hence service is disrupted.

Workaround:
None.

Fix:
Users are now able to login to APM.

831517-2 : TMM may crash when Network Access tunnel is used

Component: Access Policy Manager

Symptoms:
TMM may crash.

Conditions:
-- APM session is established.
-- Network Access tunnel is established and used;

Impact:
APM end users experience Network Access tunnel disconnected. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
This release fixes a tmm crash.

831293-5 : SNMP address-related GET requests slow to respond.

Component: TMOS

Symptoms:
SNMP get requests for ipAddr, ipAddress, ipAddressPrefix and ipNetToPhysical are slow to respond.

Conditions:
Using SNMP get requests for ipAddr, ipAddress, ipAddressPrefix and ipNetToPhysical.

Impact:
Slow performance.

Workaround:
None.

830797-3 : Standby high availability (HA) device passes traffic through virtual wire

Component: Local Traffic Manager

Symptoms:
Virtual wire is forwarding traffic on standby resulting in traffic loops and potential network outage.

Conditions:
-- High availability (HA) configured.
-- Virtual wire configured.

Impact:
Standby device is passing traffic, which may create traffic loops and bring down the network.

Workaround:
Do not configure virtual wire on standby devices.

Fix:
Although you can create this configuration, the standby no longer forwards any traffic, which prevents the traffic loop and potential network outage.

830717 : Appdata logical volume cannot be resized for some cloud images★

Component: TMOS

Symptoms:
When resizing the appdata logical volume, the change may not be honored. This is because sometimes the disk metadata does not support the change without unmounting and remounting the disk.

Conditions:
This issue applies to deployments that provision multiple modules requiring a large appdata logical volume.

Impact:
The appdata logical volume cannot be resized, so you must reduce the number of modules and the associated provisioning level so that the existing appdata logical volume size does support them.

Workaround:
None.

Fix:
Logic was added to disk resizing to account for scenarios where the disk must be unmounted and then remounted to make the change. If the disk must be unmounted and remounted, this also requires a reboot (automatic).

830481-1 : SSL TMUI hardening

Solution Article: K29923912

830413-3 : Intermittent Virtual Edition deployment failure due to inability to access the ssh host key in Azure★

Component: TMOS

Symptoms:
Deployment of BIG-IP Virtual Edition may result in an error "Failed to generate ssh host key".

Conditions:
Azure only. Observed for instances with password-based authentication.

Impact:
A timing issues exists with host key generation. The Virtual Machine is likely to be deployed, but users and automation tools might be unable to communicate with the instance.

Workaround:
BIG-IP may still be accessible despite the error.

830401-1 : TMM may crash while processing TCP traffic with iRules

Solution Article: K54200228

830341-2 : False positives Mismatched message key on ASM TS cookie

Component: Application Security Manager

Symptoms:
ASM system triggers false positives for ASM Cookie Hijacking violation with reason "Mismatched message key"

Conditions:
-- An HTTP request containing an old frame cookie with a different message key from the main ts cookie is rejected
-- The cookie is left intact

Impact:
All subsequent requests are rejected on ASM Cookie Hijacking violation

Workaround:
1. Disable "Learn Host Names" flag all policies. If the policy builder is on manual mode, they need to change it back to Auto mode, disable "Learn Host Names", then change to manual mode.

OR

2. Delete the mismatched cookie. This will cause the violations to stop occurring if the request comes from a legit endpoint

Fix:
ASM system does not trigger false positives

830073-2 : AVRD may core when restarting due to data collection device connection timeout

Component: Application Visibility and Reporting

Symptoms:
Avrd crashes, one or more core avrd files exist in /var/core

Conditions:
-- A BIG-IP system is managed by BIG-IQ via secure channel
-- Avrd is restarted.

Impact:
Avrd cores as it is shutting down. During avrd shutdown, the BIG-IQ data collection device (DCD) is unreachable for 10 minutes

Workaround:
None.

Fix:
The AVRD HTTPS module now stops any connection attempts when shutdown sequence is in progress, so this issue no longer occurs.

829821-1 : Mcpd may miss its high availability (HA) heartbeat if a very large amount of pool members are configured

Component: TMOS

Symptoms:
If a very large amount of pool members are configured (tens of thousands), mcpd may miss its high availability (HA) heartbeat and be killed by sod.

Conditions:
-- A large number of pool members.
-- Pool member validation occurs (such as when loading a configuration or doing a configsync operation).

Impact:
Mcpd is killed by sod. This causes a failover (when the BIG-IP is in a DSC) or outage (if standalone).

Workaround:
None.

829677-2 : .tmp files in /var/config/rest/ may cause /var directory exhaustion

Component: TMOS

Symptoms:
The /var partition might become completely full on the disk due to tmp files being written to /var/config/rest. This condition may be accompanied by console error messages similar to the following:
011d0004:3: Disk partition /var (slot #) has only 0% free on secondary blade.

Additionally, there may be periodic restjavad and bigd daemon restarts related to disk space exhaustion.

Conditions:
Process traffic while DoS Dashboard is open.

This issue is happening because a VIPRION process is not available because of a REST timeout.

Impact:
The partition housing /var/config/rest may become 100% full, impacting future disk IO to the partition.

Workaround:
Manually run the following commands, in sequence:

bigstart stop restjavad
rm -rf /var/config/rest/*.tmp
bigstart start restjavad

Fix:
Increased the rest socket timeout value and shellexecutor timeout value to 6 min to fix the timeout issue of viprion worker

The fix also includes automatic removal of unused tmp files.

829317-5 : Memory leak in icrd_child due to concurrent REST usage

Component: TMOS

Symptoms:
When multiple users are issuing REST commands, memory may leak slowly in icrd_child.

Conditions:
-- The icrd_child process is running.
-- There are multiple users accessing device via REST.

Impact:
Memory slowly leaks in icrd_child.

Workaround:
None.

Fix:
Fixed a memory leak in icrd_child.

829277-2 : A Large /config folder can cause memory exhaustion during live-install★

Component: TMOS

Symptoms:
-- Live install can fail at ~96% complete.
-- System memory might be exhausted, and the kernel terminates processes as a result.

Conditions:
-- During live-install.
-- Configuration roll-forward is enabled.
-- The uncompressed UCS size is larger than the available memory.

Impact:
The kernel terminates any number of processes; any/all critical applications might become nonfunctional.

Workaround:
You can use these two techniques to mitigate this situation:

-- Any file stored under /config is considered part of the configuration, so make sure there are no large, unnecessary files included in that directory.

-- If the configuration matches or is close to total system memory size, do not roll it forward as part of live install. Instead, save the UCS manually and restore it after rebooting to the new software.

To turn off config roll forward:
setdb liveinstall.saveconfig disable

For information about manually saving and restoring configurations, see K13132: Backing up and restoring BIG-IP configuration files with a UCS archive :: https://support.f5.com/csp/article/K13132.

829193-4 : REST system unavailable due to disk corruption

Component: TMOS

Symptoms:
-- The iControl REST commands respond with the following:

[INFO] Text: u'{"code":200,"message":"REST system unavailable due to disk corruption! See /var/log/restjavad.*.log for errors.","restOperationId":1472895,"kind":":resterrorresponse"}'

-- The GUI indicates that iAppLX sub-system is unresponsive.

-- On the BIG-IP device, /var/config/rest/storage/LOST-STORAGE.txt exists.

Conditions:
The conditions that trigger this are unknown. It might be due to a previous catastrophic event such as power loss or out-of-memory errors.

Manually creating the file /var/config/rest/storage/LOST-STORAGE.txt can also trigger this error.

Impact:
The iControl REST system is unavailable.

Workaround:
Run the following commands at the BIG-IP command prompt:

bigstart stop restjavad restnoded
rm -rf /var/config/rest/storage
rm -rf /var/config/rest/index
bigstart start restjavad restnoded
rm -f /var/config/rest/downloads/*.rpm
rm -f /var/config/rest/iapps/RPMS/*.rpm
tmsh restart sys service tomcat

Then, reinstall any iAppLX packages that were installed.

829121-1 : State mirroring default does not require TLS

Solution Article: K65720640

829117-1 : State mirroring default does not require TLS

Solution Article: K17663061

828937-1 : Some systems can experience periodic high IO wait due to AVR data aggregation

Solution Article: K45725467

Component: Application Visibility and Reporting

Symptoms:
Systems with a large amount of statistics data collected in the local database (i.e., systems not working with BIG-IQ) can have high IO Wait CPU usage, peaking at 10 minutes, 1 hour, and 24 hours. This is caused by the data aggregation process that is running on the local database. Notice that large memory footprints, particularly for avrd might be a symptom for the phenomenon.

Conditions:
-- The BIG-IP system is collecting statistics locally (i.e., not sending data to BIG-IQ or another external device).
-- There is a large amount of statistics data.
-- May occur even if AVR is not explicitly provisioned (in that case, ASM, APM, PEM, AFM, or AAM must be provisioned).

Impact:
High IO can impact various processes on BIG-IP systems. Some of them can experience timeouts and might restart.

Workaround:
The most effective workaround is to lower the amount of data collected by setting the 'avr.stats.internal.maxentitiespertable' DB variable to a lower value. The recommended values are 20000 (on larger, more powerful systems with more than 8 cores) or 2148 (on smaller systems).

Note: After you lower the database value, continue to monitor the BIG-IP system for long I/O wait times and high CPU usage. If symptoms persist and the system continues to experience resource issues, you may need to reset the BIG-IP AVR statistics. For information about resetting BIG-IP AVR statistics, refer to K14956: Resetting BIG-IP AVR statistics :: https://support.f5.com/csp/article/K14956.

Fix:
Set default value of avr.stats.internal.maxentitiespertable DB variable to 2148 on systems with the number of CPU cores fewer than or equal to 8.

828873-3 : Unable to successfully deploy BIG-IP 15.0.0 on Nutanix AHV Hypervisor

Component: TMOS

Symptoms:
In the deployment of BIG-IP 15.0.0 on Nutanix AHV Hypervisor, f5-label service is failing with inappropriate input device error.

Conditions:
Deployment of BIG-IP v15.0.0 on Nutanix AHV Hypervisor.

Impact:
Deployment of BIG-IP v15.0.0 is not stable to log into GUI or terminal on Nutanix AHV Hypervisor.

Workaround:
Steps:

1. Mount the drive:
mount -o rw,remount /usr

2. Add a comment below the line in the '/usr/lib/systemd/system/f5-label.service' service file:
#StandardInput=tty

3. Reload the daemon:
systemctl daemon-reload

4. Restart the service:
systemctl restart f5-label

Fix:
The I/O device has been changed to the default input device '/dev/null' to resolve the issue.

828789-1 : Display of Certificate Subject Alternative Name (SAN) limited to 1023 characters

Component: TMOS

Symptoms:
Certificate Subject Alternative Names are limited to 1023 characters.

Conditions:
Using a certificate with a Subject Alternative Name longer than 1023 characters.

Impact:
A certificate's Subject Alternative Name is not correct in the BIG-IP configuration.

This does not impact the BIG-IP system's ability to select the proper Client SSL profile on a virtual server that uses SNI matching to provide distinct certificates.

Workaround:
Specify fewer than 1023 character for the Certificate Subject Alternative Names.

828601-1 : IPv6 Management route is preferred over IPv6 tmm route

Component: Local Traffic Manager

Symptoms:
The IPv6 Management route has lower metrics than the static IPv6 tmm route. As a result, traffic that matches the default route goes to the management interface.

Conditions:
-- Create an IPv6 management route, which is going to be a default gateway.

-- Receive another default gateway from a configured peer using any of dynamic routing protocols (BGP, OSPF, etc.)

Impact:
The incorrect routing table sends the traffic that matches the default route to the management interface.

Workaround:
None.

Fix:
IPv6 routes now prioritize TMM interfaces.

827325-1 : JWT token verification failure

Component: Access Policy Manager

Symptoms:
JWT token verification failure with error -1.

Conditions:
Token size larger than 4080.

Impact:
Request rejected and the log message simply says 'unknown error -1.'

Workaround:
None.

Fix:
The 4080 token size limitation is removed.

827033-1 : Boot marker is being logged before shutdown logs

Component: TMOS

Symptoms:
When rebooting the BIG-IP, the boot marker appears before the shutdown logs

localhost notice boot_marker : ---===[ HD1.1 - BIG-IP 14.1.2 Build 0.0.37 ]===---
localhost.localdomain err logger[29153]: shutting down for system shutdown on behalf of root
localhost.localdomain notice mcpd[4645]: 01070406:5: Removed publication with publisher id shell_publish

Conditions:
Issue is observed while rebooting the device

Impact:
Creates confusion when trying to debug an issue using log files.

Workaround:
None

826905-3 : Host traffic via IPv6 route pool uses incorrect source address

Component: TMOS

Symptoms:
IPv6 route pool uses an incorrect source address rather than the self IP address. As a side symptom, if there are an even number of members in the pool, only half of the pool members are attempted during load balancing.

Conditions:
--IPv6 route pool is configured.

Impact:
Failed connections from the BIG-IP host that uses an IPv6 pool route.

Workaround:
None.

Fix:
IPv6 route pool uses the correct self IP address.

826265-5 : The SNMPv3 engineBoots value restarts at 1 after an upgrade

Component: TMOS

Symptoms:
Many SNMPv3 clients pay attention to the engineBoots value as part of server authentication. When the BIG-IP system is upgraded, the engineBoots value is not retained, so it restarts at 1.

Conditions:
Upgrading a BIG-IP system whose engineBoots value is greater than 1.

Impact:
The engineBoots value is reset to 1. This may look like an error condition for the SNMPv3 client.

Workaround:
1. Run the following command (where n = the value at which you want to start the engineBoots):

tmsh modify sys snmp include 'engineBoots n'

2. Restart SNMPD.

Fix:
This issue has been fixed: the engineBoots value is now kept as part of the configuration.

825689-1 : Enhance FIPS crypto-user storage

Component: Local Traffic Manager

Symptoms:
Existing TMOS releases use legacy storage and generation facilities that have been supplanted in newer TMOS releases.

Conditions:
Crypto-officer access to TMSH / fipsutil.

Impact:
Did not leverage Secure Vault facilities.

Workaround:
None.

Fix:
FIPS crypto-user storage now leverages Secure Vault facilities.

825501-3 : IPS IM package version is inconsistent on slot if it was installed or loaded when a slot was offline.★

Component: Protocol Inspection

Symptoms:
If the IPS IM package is installed on a multi-slot device, and one slot is offline, the IM package version might be different on the offline slot when it comes back online.

It also shows different versions of the Active IM package on different slots.

Conditions:
-- Multi-bladed clustered system.
-- One of the blades is offline.
-- The IPS IM package is installed to the primary blade.

Impact:
The primary blade syncs the IM package to all of the secondary blades that are online; however, when the offline blade comes back online, it does not have the updated IM package.

As a result, traffic being processed by different blades will be using different IPS libraries and might cause inconsistency in the functionality

Workaround:
Although there is no workaround, you can prevent the issue by ensuring that all blades are online when you install an IPS IM package.

825493-1 : JWT token verification failure

Component: Access Policy Manager

Symptoms:
JSON Web Token (JWT) verification failure with error -1.

Conditions:
Token size larger than 4080.

Impact:
Request is rejected.

Workaround:
None.

Fix:
Fixed an issue with JWT token verificaton.

825413-4 : ASM may consume excessive resources when matching signatures

Solution Article: K36942191

825013-1 : GENERICMESSAGE::message's src and dst may get cleared in certain scenarios

Component: Service Provider

Symptoms:
The "GENERICMESSAGE::message src" and "GENERICMESSAGE::message dst" iRule commands may not work properly if iRule processing changes to a different TMM. These commands may return an empty string rather than correct data.

Conditions:
-- Using "GENERICMESSAGE::message src" and/or "GENERICMESSAGE::message dst" iRule commands.
-- iRule processing moves from one TMM to another TMM.

Impact:
Incorrect data returned from "GENERICMESSAGE::message src" and "GENERICMESSAGE::message dst" iRule commands.

Fix:
The "GENERICMESSAGE::message src" and "GENERICMESSAGE::message dst" iRule commands now return correct data.

824365-5 : Need informative messages for HTTP iRule runtime validation errors

Component: Local Traffic Manager

Symptoms:
For HTTP iRule runtime validation errors, an ERR_NOT_SUPPORTED error message is appended (with rule name and event) to /var/log/ltm, but the message is not informative about the cause of the validation error:

err tmm1[20445]: 01220001:3: TCL error: /Common/example <HTTP_REQUEST> - ERR_NOT_SUPPORTED (line 1) invoked from within "HTTP::uri".

The system should post a more informative message, in this case:

err tmm[10662]: 01220001:3: TCL error: /Common/example <HTTP_REQUEST> - can't call after responding - ERR_NOT_SUPPORTED (line 1) invoked from within "HTTP::uri"

Conditions:
-- HTTP filter and HTTP iRules are used by a virtual server.
-- An HTTP iRule runtime validation error happens. For example, HTTP::uri is called after HTTP::respond () which is not supported.

Impact:
With no informative error messages, it is difficult to identify the validation error.

Workaround:
There is no workaround at this time.

Fix:
Informative messages are provided for HTTP iRule runtime validation errors.

824149-5 : SIP ALG virtual with source-nat-policy cores if traffic does not match the source-nat-policy or matches the source-nat-policy which does not have source-translation configured

Component: Service Provider

Symptoms:
In SIP ALG virtual with source-nat-policy assigned, if traffic processed by the virtual server does not match source-nat-policy, or if it matches source-nat-policy that does not have source-translation configured, tmm cores and restarts.

Conditions:
-- SIP ALG virtual server with an assigned source-nat-policy.
-- Traffic does not match the source-nat-policy, or traffic matches a source-nat-policy that has no source-translation configured.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Configure SIP ALG virtual so that the condition never happens. For example, apply a source attribute to the virtual server that filters out traffic that will not match the source-nat-policy. Never use a source-nat-policy that has no source-translation.

824093-5 : Parameters payload parser issue

Component: Application Security Manager

Symptoms:
Incorrect parameter parsing occurs under some conditions. For example, in a signature violation, the 'Actual Parameter Name' value appears as 'attachment; filename'.

Conditions:
-- ASM in use.
-- Request contains multipart headers.

Impact:
Incorrect policy enforcement.

Workaround:
None.

Fix:
This release fixes an issue related to multipart requests.

823893-7 : Qkview may fail to completely sanitize LDAP bind credentials

Solution Article: K03318649

822377-6 : CVE-2019-10092: httpd mod_proxy cross-site scripting vulnerability

Component: TMOS

Symptoms:
A limited cross-site scripting issue was reported affecting the mod_proxy error page. An attacker could cause the link on the error page to be malformed and instead point to a page of their choice. This would only be exploitable where a server was set up with proxying enabled but was misconfigured in such a way that the Proxy Error page was displayed.

Conditions:
This flaw is only exploitable if Proxy* directives are used in Apache httpd configuration. The following command can be used to search for possible vulnerable configurations:

grep -R '^\s*Proxy' /etc/httpd/

Impact:
An attacker could cause the link on the error page to be malformed and instead point to a page of their choice.

Workaround:
This flaw is only exploitable if Proxy* directives are used in Apache httpd configuration. As a Mitigation/Workaround, exclude Proxy* directives in Apache Httpd configuration.

Fix:
Removed request data from many other in-built error messages.

822245-2 : Large number of in-TMM monitors results in some monitors being marked down

Component: In-tmm monitors

Symptoms:
Pool members are marked down from the in-TMM monitor.

Conditions:
Device has a large number of in-TMM monitors.

Impact:
Monitor target may appear down when it is actually up.

Workaround:
Disable in-tmm monitors:
tmsh modify sys db bigd.tmm value disable

822025 : HTTP response not forwarded to client during an early response

Component: Local Traffic Manager

Symptoms:
In early server responses, the client does not receive the intended response from the HTTP::respond iRule. The client instead receives an unexpected 500 internal server error.

Conditions:
-- A slow client.
-- early server response with the HTTP::respond iRule.

Impact:
A client does not receive the redirect from the HTTP::respond iRule.

Workaround:
None.

Fix:
The client now receives the redirect from the HTTP:respond iRule.

821309-1 : After an initial boot, mcpd has a defunct child "systemctl" process

Component: TMOS

Symptoms:
Zombie "systemctl" process, as a child of mcpd.

Conditions:
Reboot of the BIG-IP.

Impact:
Minimal; a single zombie process is created.

Workaround:
To get rid of the process, you can restart mcpd.

820845-3 : Self-IP does not respond to ( ARP / Neighbour Discovery ) when EtherIP tunnels in use.

Component: TMOS

Symptoms:
BIG-IP systems might not respond to ( ARP / Neighbour Discovery ) requests received via EtherIP tunnels on a multi-blade system.

Conditions:
Decapsulated ( ARP / Neighbour Discovery ) requests for an address owned by the BIG-IP system is processed by a secondary blade.

Impact:
Some endpoints may not be able to resolve ( ARP / Neighbour protocol ) via EtherIP tunnel.

Workaround:
Create static ARP entries on affected endpoints.

820333-1 : LACP working member state may be inconsistent when blade is forced offline

Component: Local Traffic Manager

Symptoms:
Inconsistent (out-of-sync) LACP working member state.
Incorrect trunk high availability (HA) score.

Conditions:
LACP updates while blade is going offline.

Impact:
Incorrect high availability (HA) score may prevent the unit from automatically failing over.

819329-4 : Specific FIPS device errors will not trigger failover

Component: Local Traffic Manager

Symptoms:
When the FIPS device experiences a hardware failure during idle-time, the device may not fail over.

Conditions:
-- FIPS hardware failure occurs, but the device is idle

Impact:
The device may not fail over on FIPS hardware failure.

Fix:
Interpret rare FIPS card failure as failover event.

819301-2 : Incorrect values in REST response for dos-l3 table

Component: Application Visibility and Reporting

Symptoms:
Some of the calculations in the AVR publisher are not performed, and incorrect values are shown in the REST response.

Conditions:
-- Device vector detection and mitigation thresholds are set to 10
-- The attack vector is triggered

Impact:
Wrong values appear in REST reponse

Fix:
Fixed an issue with incorrect values for mitigated attacks.

819197-2 : BIGIP: CVE-2019-13135 ImageMagick vulnerability

Solution Article: K20336394

819189-1 : BIGIP: CVE-2019-13136 ImageMagick vulnerability

Solution Article: K03512441

819053 : CVE-2019-13232 unzip: overlapping of files in ZIP container

Component: TMOS

Symptoms:
CVE-2019-13232 unzip: overlapping of files in ZIP container leads to denial of service

Conditions:
Info-ZIP UnZip 6.0 mishandles the overlapping of files inside a ZIP container

Impact:
UnZip overlapping will leading to denial of service.

Workaround:
N/A

Fix:
UnZip updated to resolve CVE-2019-13232

818853-1 : Duplicate MAC entries in FDB

Component: Local Traffic Manager

Symptoms:
Forwarding DataBase (FDB) not updated when a MAC moves among interfaces.

Conditions:
-- Having multiple paths to a MAC in a given configuration.

Impact:
There are duplicate MAC address entries which come from multiple interfaces.

Workaround:
None.

818833-1 : TCP re-transmission during SYN Cookie activation results in high latency

Component: Local Traffic Manager

Symptoms:
Issue is reported at the following system setup:

client <-> BIG-IP <-> concentrator <-> proxy <-> BIG-IP nat gateway <-> Internet

-- SYN Cookie got activated on F5 nat gateway.
-- Latency from 'Internet' (public host) is observed at 'Proxy' device sitting before F5 nat gw.
-- During the latency issue, SYN Cookie was active and evicting connections.
-- When SYN Cookie is enabled, it switches to l7 delayed binding as expected but it is not sending ACK for HTTP request so the client sends it again and again.

Conditions:
Haredware SYN Cookie is enabled on FastL4 profile

Impact:
High latency is observed.

Workaround:
Disable the SYN Cookie on the FastL4 profile

818253-3 : Generate signature files for logs

Component: TMOS

Symptoms:
To achieve DoDIN APL certification, the BIG-IP system must guarantee the integrity of log files using the standards' recommendation of encrypting those files on the local store. The BIG-IP system does not generate signature files for logs. As a result, the system stores the audit information (i.e., the log files stored in /var/log folder and other subfolders) without creating integrity files.

Conditions:
Viewing the audit information stored in /var/log and other locations.

Impact:
Audit log files are stored without integrity files on the local system.

Workaround:
Disable local logging for audit logs and send them to remote syslog, for example:

tmsh modify sys syslog include "filter f_audit { facility(local0) and not message(AUDIT); }; "

Fix:
There is now a LogIntegrity utility provided to generate signature files for logs.

-- To enable the feature:
tmsh modify sys db logintegrity.support value enable

-- To set the LogIntegrity loglevel:
tmsh modify sys db logintegrity.loglevel value debug

You must create private key and store it in SecureVault before enabling this feature. To do so:

1. Generate a private key with the name logfile_integrity.key, for example:
tmsh create sys crypto key logfile_integrity.key key-type rsa-private key-size 2048 gen-certificate security-type password country US city Seattle state WA organization "Example, Inc." ou "Example-Creation Team" common-name www.example.com email-address admin@example.com lifetime 365

2. Generate RSA encrypted private SSL keys:

2a. Go to the filestore location on the BIG-IP system:
cd /config/filestore/files_d/Common_d/certificate_key_d/

ls | grep logfile_integrity:Common:logfile_integrity.key_63031_2

openssl rsa -aes256 -in :Common:logfile_integrity.key_63031_2 -out logfile_integrity_secure.key

2b. Specify the PEM password/passphrase (e.g., root0101) to use to protect the SSL private key (in this example, logfile_integrity_secure.key is the password protected private key):

2c. run command to list the generated files
ls | grep logfile_integrity :Common:logfile_integrity.key_63031_2 logfile_integrity_secure.key

3. Install the generated password protected SSL private key with the same password (e.g., root0101) used in step 2 to store in 'secure vault' on the BIG-IP system:

tmsh install sys crypto key logfile_integrity.key passphrase example root0101 from-local-file logfile_integrity_secure.key

Once the feature is enabled and the private key installed, The signature files are generated under /var/log/digest whenever log files get rotated.

If you want to verify Signatures, follow these steps:

1. Go to the filestore location on the BIG-IP system :
cd /config/filestore/files_d/Common_d/certificate_d

2. Execute the following command to generate the public key.
openssl x509 -in :Common:logfile_integrity.key_63031_2 -noout -pubkey > certificatefile.pub.cer

3.Verify the signature file using public key:
openssl dgst -sha256 -verify /config/filestore/files_d/Common_d/certificate_d/certificatefile.pub.cer -signature /var/log/digest/audit.1.sig /var/log/audit.1

818213-4 : CVE-2019-10639: KASLR bypass using connectionless protocols

Solution Article: K32804955

818177-6 : CVE-2019-12295 Wireshark Vulnerability

Solution Article: K06725231

818109-1 : Certain plaintext traffic may cause SSL Orchestrator to hang

Component: Local Traffic Manager

Symptoms:
After upgrading SSL Orchestrator to version 5.x, traffic gets reset, SSL Orchestrator hangs, and tcpdump analysis indicates that connections are being reset due to SSL handshake timeout exceeded.

Conditions:
-- SSL Orchestrator configured.
-- Initial plaintext traffic resembles SSLv2 hello message or has less-than-enough bytes for SSL to process.

Impact:
SSL Orchestrator hangs on that connection, unable to bypass traffic until the connection times out. Other connections handle traffic during this interval.

Workaround:
None.

Fix:
This release adds a db variable to enable/disable SSLv2 hello parsing. It is called tmm.ssl.v2compatibility and is disabled by default.

817709-3 : IPsec: TMM cored with SIGFPE in racoon2

Component: TMOS

Symptoms:
TMM asserted and cored in racoon2 with this panic message:

panic: iked/ikev2_child.c:2858: Assertion "Invalid Child SA proposal" failed.

Conditions:
When IKEv2 Phase 2 SA has no peer proposal associated with it.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
This issue no longer occurs.

816881-2 : Serverside conection may use wrong VLAN when virtual wire is configured

Component: Local Traffic Manager

Symptoms:
Server syn is flowing on the wrong VLAN, when tmm tries to establish a server connection. The BIG-IP system sends RST packets of unmatched VLAN/MAC combination

Conditions:
-- Virtual wire is configured .
-- Clientside data and handshake come in on different VLANs.

Impact:
Some client connections fail to establish

Workaround:
None.

816413-5 : CVE-2019-1125: Spectre SWAPGS Gadget

Solution Article: K31085564

816233-1 : Session and authentication cookies should use larger character set

Component: TMOS

Symptoms:
The session and authentication cookies are created using a limited character set.

Conditions:
Creating session and authentication cookies.

Impact:
Cookies are created with a less broad character set than they could be.

Workaround:
None.

Fix:
JSESSIONIDs and AuthCookies are created using a wider character set.

Behavior Change:
This release changes the format of the BIGIPAuthCookie and JSESSIONID cookies to use a larger alphabet during encoding (case sensitive alphanumeric).

816229-3 : Kernel Log Messages Logged Twice

Component: TMOS

Symptoms:
You see duplicate log messages in /var/log/kern.log

Conditions:
This can be encountered when viewing /var/log/kern.log right after startup in BIG-IP versions dating back to 14.1.0

Impact:
Viewing ('cat'ing) kern.log results in duplicated log messages in the buffer.

Fix:
Fixed an issue with duplicated log messages in /var/log/kern.log.

815877-2 : Information Elements with zero-length value are rejected by the GTP parser

Component: Service Provider

Symptoms:
When processing a GTP message containing zero-length IEs (which are allowed by the 3GPP Technical Specification), the message might get rejected.

Conditions:
Virtual server with GTP profile enabled processing GTP traffic.

Impact:
Well-formed GTP messages might get rejected.

Workaround:
Avoid sending GTP messages containing zero-length IEs.

Fix:
Zero-length IEs are now processed correctly.

814953 : TMUI dashboard hardening

Solution Article: K43310520

814585-1 : PPTP profile option not available when creating or modifying virtual servers in GUI

Component: TMOS

Symptoms:
There is no option to configure a PPTP profile for a virtual server in the GUI.

Conditions:
Creating or modifying a virtual server in the GUI.

Impact:
Unable to configure the PPTP profile for a virtual server using the GUI.

Workaround:
Use TMSH to add a PPTP profile to the virtual server.

814037-6 : No virtual server name in Hardware Syncookie activation logs.

Component: Local Traffic Manager

Symptoms:
Missing virtual server name in Hardware Syncookie activation logs. ltm/logs contains error messages:

notice tmm2[1150]: 01010240:5: Syncookie HW mode activated, server = 0.0.0.0:0, HSB modId = 2.

Conditions:
-- More than one virtual server with same Destination IP e.g., 'x.x.x.x'.
-- Port 'y' configured.
-- Hardware Syncookie activated.

Impact:
Difficult to determine which virtual server actually got the Syncookie activated.

Workaround:
None.

813701-6 : Proxy ARP failure

Component: Local Traffic Manager

Symptoms:
In certain configurations, and when the BIG-IP system does not have a directly connected route to the request sender, proxy ARP may fail, leading to dropped ARP replies.

Conditions:
-- Running v12.1.4.1 or 12.1.3.7 with engineering hotfix 0.89.2.
-- ARP requests and replies are processed by different TMMs.
-- A directly connected route to the request sender is not available.

Impact:
ARP replies are dropped, leading to connection failures.

Workaround:
Create a self IP in the same subnet as the ARP request senders. This creates the necessary directly connected route.

812981-6 : MCPD: memory leak on standby BIG-IP device

Component: TMOS

Symptoms:
MCPD memory consumption may increase on standby BIG-IP device if APM configuration is updated. Some of the allocated memory is not freed after configuration update.

Conditions:
-- BIG-IP high availability (HA) pair is installed and configured
-- APM is provisioned
-- Access Policy is configured and updated periodically

Impact:
MCPD may take a lot of memory on the standby device. Normal functionality of standby device may be stopped; reboot of the device is required.

Fix:
MCPD on standby BIG-IP device does not take more memory than the same daemon on active BIG-IP device.

812525-1 : The BIG-IP system may not interpret an HTTP request the same way the target web server interprets it

Solution Article: K27551003

Component: Local Traffic Manager

Symptoms:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Conditions:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Impact:
For more information, please see:
https://support.f5.com/csp/article/K27551003

Workaround:
None.

Fix:
For more information, please see:
https://support.f5.com/csp/article/K27551003

812493-4 : When engineID is reconfigured, snmp and alert daemons must be restarted★

Component: TMOS

Symptoms:
The engineID, engineBoots, engineTime values in SNMPv3 traps are shared by both the SNMP and the Alert daemons and are included in traps raised by both daemons. When the engineID is reconfigured then both daemons must be restarted in order to resynchronize the new values.

Conditions:
Traps issued by the SNMP and Alert daemons may not have engine values that are in sync when the EngineID is first reconfigured. This can happen both with a configuration change and an upgrade.

Impact:
This may confuse the SNMP client receiving the trap.

Workaround:
Restart the snmp daemon and then the alert daemon when the engine ID is reconfigured for the first time and the first time after a software upgrade

tmsh restart sys service snmpd alertd

811789-7 : Device trust UI hardening

Solution Article: K57214921

811701-3 : AWS instance using xnet driver not receiving packets on an interface.

Component: TMOS

Symptoms:
Packets are being sent to the AWS instance but no packets are seen on interface.

Conditions:
-- AWS instance using xnet driver.
-- Occurs when the instances are idle and then suddenly passes traffic again.
-- Other, more specific conditions are unknown at this time.

Impact:
Loss of packets in the interface, in turn, causing data loss.

Workaround:
A temporary way to avoid the problem is to configure BIG-IP Virtual Edition (VE) to use an alternative network driver in place of the default 'xnet' driver. In releases 14.1.0 and later, this would be the 'sock' driver.

Use the following command sequences from the BIG-IP instance's 'bash' prompt to configure the alternative driver. (Note the use of the 'greater-than' symbol.)

  # echo "device driver vendor_dev 1d0f:ec20 sock" > /config/tmm_init.tcl
  # echo "ndal force_sw_tcs off 1d0f:ec20" >> /config/tmm_init.tcl

[check that the file's contents are correct]

  # cat /config/tmm_init.tcl

[restart the BIG-IP system's TMM processes]

  # bigstart restart tmm

[make certain that the 'driver_in_use' is 'sock']

  # tmctl -dblade -i tmm/device_probed

811149-2 : Remote users are unable to authenticate via serial console.

Component: TMOS

Symptoms:
Attempts to login to the serial console with remote user credentials (e.g., RADIUS, LDAP, TACACS remote auth) fail with one of the following error messages:

-- 'Cannot load user credentials for user' (v13.1.1.2)
-- 'Session setup problem, abort.' (v14.1.0.1)

Conditions:
Configure system for remote authentication and attempt authentication via serial console.

Impact:
Remote authentication users are unable to login via serial console.

Workaround:
There are two workarounds:
-- Remote authentication users can login using an SSH connection to the BIG-IP system's management IP address.

-- Use the credentials of a local user account to login to the serial console.

811053-6 : REBOOT REQUIRED prompt appears after failover and clsh reboot

Component: TMOS

Symptoms:
In rare circumstances, when a reboot immediately follows a VIPRION blade failover, a REBOOT REQUIRED prompt will appear on one blade after the system starts up again.

Conditions:
This issue can be created by doing the following:
- using a VIPRION system with at least 2 blades running
- AAM is not provisioned
- reset the primary blade
- immediately following the blade reset, run 'clsh reboot' on a secondary blade.

Impact:
Following the clsh reboot, the REBOOT REQUIRED prompt appears on one blade:
[root@vip4480-r44-s18:/S2-yellow-S::REBOOT REQUIRED:Standalone] config #

Any blade with this prompt must be rebooted again.

Workaround:
None currently known.

811041-7 : Out of shmem, increment amount in /etc/ha_table/ha_table.conf

Component: TMOS

Symptoms:
System logs error:
err sod[8444]: 01140003:3: Out of shmem, increment amount in /etc/ha_table/ha_table.conf.

Conditions:
-- Large number of traffic groups.
-- A number of devices in the device cluster.
-- Heavy traffic resulting in numerous configsync or config save operations.

Impact:
Memory leak. Future changes to the high availability (HA) table may fail or be ignored. This could result in HA events not being tracked correctly.

Workaround:
None.

Fix:
The HA table no longer leaks memory if an entry is reinitialized.

810821-3 : Management interface flaps after rebooting the device

Component: TMOS

Symptoms:
The Management interface flaps after rebooting the device, which may cause a momentary active-active condition in a high availability (HA) configuration.

Conditions:
This can occur after rebooting the active or standby device in an HA configuration if the final management port configuration completes late in the startup sequence. This can be due to network conditions for the network the management port is connected to.

This problem has been observed only on hardware platforms.

Impact:
Devices go active-active for a few seconds and then resume normal operation.

Workaround:
You may be able to work around this by changing the management port speed to 100/Fixed Duplex.

For more information on changing the interface, see K14107: Configuring the media speed and duplex settings for network interfaces (11.x - 13.x), available at https://support.f5.com/csp/article/K14107.

Fix:
The startup sequence has been changed to confirm that management port configuration is complete before proceeding with HA processing.

810381-2 : The SNMP max message size check is being incorrectly applied.

Component: TMOS

Symptoms:
If the SNMP server receives an SNMPv3 request with a small max message size then, it applies that check to all requests. This can cause SNMPv1 and SNMPv2c requests time out if they are too long or if their responses are too long, for example, large get bulk requests.

Conditions:
An SNMPv3 small max message size received while processing large SNMPv1 and SNMPv2c requests.

Impact:
Responses time out.

Workaround:
Do not send SNMPv3 requests to the BIG-IP system.

Fix:
SNMPv3 requests no longer impact SNMPv1 and SNMPv2c requests.

809701-7 : Documentation for HTTP::proxy is incorrect: 'HTTP::proxy dest' does not exist

Component: Local Traffic Manager

Symptoms:
In BIG-IP GUI iRule definitions, when hovering over HTTP::proxy, the help text mentions 'HTTP::proxy dest', which is an invalid command.

Conditions:
The system displays incorrect information when the iRule help text is visible.

Impact:
The help text mentions 'HTTP::proxy dest', which is an invalid command option.

Workaround:
Do not use the invalid 'HTTP::proxy dest' command.

Fix:
The help text now shows 'HTTP::proxy', which is correct.

809597-5 : Memory leak in icrd_child observed during REST usage

Component: Local Traffic Manager

Symptoms:
When multiple users are issuing REST commands, memory may leak slowly in icrd_child.

Conditions:
-- The icrd_child process is running.
-- There are multiple users accessing device via REST.

Impact:
The memory leak is very progressive. Eventually, the icrd_child process runs out of memory.

Workaround:
None.

Fix:
Fixed a memory leak in icrd_child.

809205-6 : CVE-2019-3855: libssh2 Vulnerability

Component: TMOS

Symptoms:
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server.

Conditions:
-- Authenticated administrative user with Advanced Shell Access.
-- Use of cURL from the command line to connect to a compromised SSH server.

Impact:
A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.

Workaround:
None.

Fix:
libcurl updated

809125-5 : CSRF false positive

Component: Application Security Manager

Symptoms:
A CSRF false-positive violation.

Conditions:
CSRF enforcing security policy.

This is a very rare scenario, but it happens due to a specific parameter in the request, so the false-positive might repeat itself many times for the same configuration.

Impact:
False-positive Blocking / Violation

Workaround:
If this happens change the csrf parameter and restart the asm daemon:

1. Change the csrf parameter name internal parameter:
/usr/share/ts/bin/add_del_internal add csrf_token_name <string different than csrt>

2. Restart the asm daemon:
restart asm

808409-4 : Unable to specify if giaddr will be modified in DHCP relay chain

Component: Local Traffic Manager

Symptoms:
ID746077 changed the dhcprelay behavior in order to comply with RFC 1542 Clarifications and Extensions for BOOTP.

However, as the change also encompasses the DHCP-to-DHCP relay scope, the behavior cannot be configurable with a db key.

Conditions:
DHCP Relay deployments where the giaddr needs to be changed.

Impact:
You are unable to specify whether giaddr will be changed.

Workaround:
None.

Fix:
A new sys db tmm.dhcp.relay.giaddr.overwrite is introduced

The default is :

sys db tmm.dhcp.relay.giaddr.overwrite {
value "enable"
}

On versions with a fix to 746077, the sys db DOES NOT exist and BIG-IP will always retain the source IP

On versions with both this fix and ID748333 fix, this fix overrides the fix for 746077. To change the default, set to "disable" to retain

807337-5 : Config utility (web UI) output differs between tmsh and AS3 when the pool monitor is changed.

Component: TMOS

Symptoms:
When a transaction attempts multiple commands (delete, create, modify) for the same object in the same transaction, the results can be unexpected or undefined. A common example is: 'transaction { delete key create_if key }' where the transaction attempts 'delete key', and then 'create_if key', which unmarks the delete operation on the key (so in this case the key remains unmodified). In other cases it is possible that monitoring stops for the associated object, such as for: pool, pool_member, node_address, monitor.

Conditions:
A user-initiated transaction attempts multiple commands for the same monitor-related object (such as delete, create, modify).

Impact:
The GUI shows misleading info about the pool monitor.The monitor-related object may be unchanged, or monitoring may stop for that object.

Workaround:
Transactions modifying a monitor-related object (pool, pool_member, node_address, monitor) should perform a single command upon that object (such as one of: 'delete', 'create', 'modify').

Fix:
Behavior is as-expected when a transaction executes multiple commands (such as 'delete', 'create', 'modify') upon the same monitor-related object (pool, pool_member, node_address, monitor).

807005-5 : Save-on-auto-sync is not working as expected with large configuration objects

Component: TMOS

Symptoms:
In device group has enabled 'save sys config' for all auto-sync operations using the following command:
modify cm device-group name save-on-auto-sync true

Warning: Enabling the save-on-auto-sync option can unexpectedly impact system performance when the BIG-IP system automatically saves a large configuration change to each device.

Conditions:
-- The save-on-auto-sync option is enabled.
-- Device has large configuration, such as 2,100 virtual servers and ~1100 partitions

Impact:
Configuration is not saved, which leads to out-of-sync condition.

Workaround:
You can avoid this issue by using manual sync instead of auto-sync, or by not enabling 'save-on-auto-sync'.

806073-1 : MySQL monitor fails to connect to MySQL Server v8.0

Component: TMOS

Symptoms:
The LTM MySQL health monitor fails to connect to a MySQL server running MySQL Server v8.0.
A pool member configured for a MySQL server running MySQL Server v8.0 and using the MySQL health monitor will be marked DOWN.

Conditions:
This occurs when using the LTM MySQL health monitor to monitor a MySQL server running MySQL Server v8.0.

Impact:
BIG-IP cannot monitor the health of a MySQL server running MySQL Server v8.0 using the MySQL health monitor.

805821-3 : GTP log message contains no useful information

Component: Service Provider

Symptoms:
GTP profile and GTP iRules provide no useful information in order to proceed with troubleshooting.

Conditions:
GTP profile or iRules fails to process message

Impact:
User lacks of information for troubleshooting

Workaround:
N/A

Fix:
GTP error log has been replaced with a more useful message. The new log message provides more intuitive information including the reason and, in some messages, location of data that causes the failure.

805417-3 : Unable to enable LDAP system auth profile debug logging

Component: TMOS

Symptoms:
Beginning in version 14.1.0, LDAP debugging must be performed on nslcd logs and not pam_ldap logs; however, it is not possible to enable debug logging on nslcd via the configuration file.

Conditions:
This would be encountered only if you (or F5 Support) wanted to do troubleshooting of LDAP connections by enabling debug logging.

Impact:
LDAP system authentication 'debug' parameter does not provide sufficient levels of debug logs, but there is no functional impact to normal system operation.

Workaround:
To enable debug logging and have the system post log messages to the SSH/console window, start the nslcd process with -d option, which causes nslcd to run in the foreground until you press control-c to stop it:

   systemctl stop nslcd
   nslcd -d

Note: The -d setting does not persist, so each time you want to log debug output, you must complete this procedure.

You can increase the amount of debug output by specifying additional -d options (up to 3), e.g., '-ddd' or '-d -d -d'.

When done, stop nslcd with control-c, and then restart it with the default options via the normal systemctl daemon:

   systemctl start nslcd

Fix:
The nslcd logs are now visible on /var/log/secure file.

804309-1 : [api-status-warning] are generated at stderr and /var/log/ltm when listing config with all-properties argument

Component: TMOS

Symptoms:
Running the command 'tmsh list' on a pool or virtual server with the 'all-properties' argument generates a warning:

[api-status-warning] ltm/virtual, properties : deprecated : urldb-feed-policy

Conditions:
Including the 'all-properties' argument with the 'tmsh list' command.

Impact:
There is no impact to the system. The excessive [api-status-warning] at stderr and /var/log/ltm for tmsh list commands are spurious, benign, and can be ignored.

Workaround:
tmsh modify /mgmt shared settings api-status log resource-property deprecatedApiAllowed false

tmsh modify /mgmt shared settings api-status log resource deprecatedApiAllowed false

804157-3 : ICMP replies are forwarded with incorrect checksums causing them to be dropped

Component: Local Traffic Manager

Symptoms:
If a FastL4 virtual server receives an ICMP response without first receiving an ICMP request, the checksum on the ICMP response that is egressed by tmm will not be calculated correctly.

Conditions:
An ICMP response without a corresponding ICMP request, such as in non-symmetric routing scenarios.

Impact:
ICMP replies are forwarded with the incorrect checksum and likely will be dropped by the recipient or other devices on the network.

Workaround:
Ensure symmetric routing. Configure L7 virtual servers for use with ipother profiles.

803965-7 : Expat Vulnerability: CVE-2018-20843

Solution Article: K51011533

803933-7 : Expat XML parser vulnerability CVE-2018-20843

Solution Article: K51011533

803825-5 : WebSSO does not support large NTLM target info length

Component: Access Policy Manager

Symptoms:
WebSSO crashes.

Conditions:
When the optional field of the target info is about 1000 bytes or larger.

Impact:
WebSSO crashes and loss of service.

Workaround:
Config NTLM not to have large target info, recommend < 800.

803809-4 : SIP messages fail to forward in MRF SIP when preserve-strict source port is enabled.

Component: Service Provider

Symptoms:
When MRF SIP is configured in per-client mode and preserve-strict source port is enabled on a virtual server, messages may fail to forward due to port collisions when multiple clients try to use the same port (which is expected/accepted behavior with this configuration). After the port has been freed or the configuration changed, messages continue to fail for clients that had previous port collisions.

Conditions:
-- MRF SIP configured with: Per-Client connection mode and virtual server with preserve-strict source port enabled.
-- Multiple clients try to connect using the same local port.
-- Previously failed client connections attempt to connect again after the port has been freed or configuration changed.

Impact:
Calls from one or more clients are unable to be completed.

Workaround:
You can prevent this behavior using either workaround:
-- Configure a different connection mode (Per-TMM, for example).
-- Disable preserve-strict source port on the virtual server.

Fix:
Clients with previous connection failures are now able to connect when the port is no longer in use or the configuration has been changed.

803237-2 : PVA does not validate interface MTU when setting MSS

Component: TMOS

Symptoms:
An incorrect MSS value might be used when hardware (HW) syncookies are used, and the MTU is smaller than the MSS.

Conditions:
-- The BIG-IP system sends TCP segments, fragmented across multiple IP packets, that exceed the size of the local interface MTU.
-- This occurs when HW Syncookies are enabled.

Impact:
TCP segments larger than the local interface MTU sent towards the client. These TCP segments are transmitted as IP fragments.

Workaround:
Increase MTU size.

803233-1 : Pool may temporarily become empty and any virtual server that uses that pool may temporarily become unavailable

Component: Local Traffic Manager

Symptoms:
Intermittently (depending the timing of operations that keep MCP busy):

1. Messages similar to the following may be logged in the LTM log, indicating that the virtual server associated with a pool became temporarily unavailable:

-- notice mcpd[4815]: 01071682:5: SNMP_TRAP: Virtual /Common/test_vs has become unavailable.
-- notice mcpd[4815]: 01071681:5: SNMP_TRAP: Virtual /Common/test_vs has become available.

2. Optionally, if a 'min-up-members' value is configured for the pool, a message similar to the following may be logged in the LTM log, indicating that the number of available pool members became less than the configured value:

-- notice mcpd[4815]: 01070282:3: Number of pool members 2 less than min up members 3.

Conditions:
1. The pool members are all FQDN pool members.
2. The DNS query to resolve pool member FQDNs returns a completely new (non-overlapping) set of IP addresses.
(This causes all existing Ephemeral pool members to be removed and replaced with new Ephemeral pool members.)
3. MCP is very busy and slow to process messages.

Impact:
Under these conditions, existing Ephemeral pool members may be removed before new Ephemeral pool members can be created to replace them, causing the pool member to become temporarily empty. This can result in intermittent loss of availability of the virtual server if all records returned by the DNS server for the referenced FQDN change from the previous response.

Workaround:
None.

Fix:
FQDN ephemeral pool members are created in a more timely manner when FQDN resolution via DNS returns new address records.

802873-2 : Manual changes to policy imported as XML may introduce corruption for Login Pages

Component: Application Security Manager

Symptoms:
Manual changes to a policy imported as XML may introduce corruption for Response Pages. The following log appears:
ASM subsystem error (asm_config_server.pl ,F5::PrepareConf::Policy::prepare_alternate_response_file_tbl): failed to parse response headers - please check response page.

Conditions:
-- XML policy file is missing a response header.
-- Import the policy.

Impact:
The affected reponse page is not returned for traffic as expected, and an error is reported instead.

Workaround:
Mitigation:
Ensure that response_header exists in XML policy file before import.

Workaround:
Go to the affected policy's Response Pages: Login Page, click Save and then click Apply Policy.

Fix:
The system now gracefully ignores empty header for Login Page response page.

802685-2 : Unable to configure performance HTTP virtual server via GUI

Component: TMOS

Symptoms:
When creating 'performance HTTP' virtual servers via GUI, the following error is reported:
01070734:3: Configuration error: A Virtual Server(/Common/vfasthttp) cannot be associated with both fasthttp and L4 profile.

Conditions:
Use the GUI to create a virtual server of type Performance (HTTP).

Impact:
Failed to create a 'performance HTTP' virtual server.

Workaround:
Use TMSH to configure the performance HTTP virtual server:
tmsh create ltm virtual vfasthttp destination 1.1.1.1:80 ip-protocol tcp profiles add { fasthttp }

802421-6 : The /var partition may become 100% full requiring manual intervention to clear space

Component: Advanced Firewall Manager

Symptoms:
The /var partition might become completely full on the disk due to files being written to /var/config/rest. This condition may be accompanied by console error messages similar to the following:
011d0004:3: Disk partition /var (slot #) has only 0% free on secondary blade.

Additionally, there may be periodic restjavad and bigd daemons restarts related to disk space exhaustion.

Conditions:
Process traffic while DoS Dashboard is open

Impact:
The partition housing /var/config/rest may become 100% full, impacting future disk IO to the partition.

Workaround:
Important: This workaround is temporary, and may need to be periodically performed either manually or from a script.

Impact of Workaround: While these steps are performed, the BIG-IP REST API will be temporarily inaccessible, and higher disk IO may be seen.

Run the following commands, in sequence:

bigstart stop restjavad
rm -rf /var/config/rest/storage*.zip
rm -rf /var/config/rest/*.tmp
bigstart start restjavad

Manual application of these workaround steps clears the 100% utilized space condition and allows the partition to resume normal operation.

802281-3 : Gossip shows active even when devices are missing

Component: TMOS

Symptoms:
Gossip appears Active even when one or more devices go missing from device group. 'restcurl shared/gossip' shows active on both devices, even when the devices are not listed in 'restcurl shared/resolver/device-groups/tm-shared-allBIG-IPs/devices'.

Conditions:
The conditions under which this issue occurs are unknown. This is an intermittent issue.

Impact:
Gossip reports that it is working when it is not.

Workaround:
-- If the missing device is the active device, run the following command on the Active DSC Device:

restcurl -X POST -d '{}' tm/shared/bigip-failover-state

-- If the missing device is the standby device, reboot the device, make it active, and then run the following command:

restcurl -X POST -d '{}' tm/shared/bigip-failover-state

801497-3 : Virtual wire with LACP pinning to one link in trunk.

Component: Local Traffic Manager

Symptoms:
A virtual-wire that uses interface trunks may use a single interface on egress.

Conditions:
Virtual-wire configured across multi-interface trunks.

Impact:
This may lead to unexpected link saturation.

Workaround:
None.

799749-2 : Asm logrotate fails to rotate

Component: Application Security Manager

Symptoms:
ASM logrotate reports errors in /var/log/asm.:

error: error creating output file /ts/log//bd.log.1: File exists

Conditions:
Files ending with .1 exists in the logs directories.

Impact:
Logrotate does not work. May fill disk with logs over time.

Workaround:
Remove or rename all of the .1 logs.

799001-1 : Sflow agent does not handle disconnect from SNMPD manager correctly

Component: TMOS

Symptoms:
If Sflow agent loses the connection with the SNMPD Manager, it tries to connect multiple times but fails to reconnect.

Conditions:
Sflow agent loses connection with the SNMPD Manager. The conditions that may trigger this are unknown.

Impact:
Snmpd service restarts repeatedly

Workaround:
Run 'tmsh restart sys service sflow_agent' to clear the session data in the sflow agent which results in successful re-connection with snmpd.

Fix:
No Fix. Execute 'tmsh restart sys service sflow_agent'

797829-6 : The BIG-IP system may fail to deploy new or reconfigure existing iApps

Component: TMOS

Symptoms:
The BIG-IP system may fail to deploy new or reconfigure existing iApps. When this happens, a long error message is displayed in the GUI that begins with:

script did not successfully complete: ('source-addr' unexpected argument while executing

The message is also logged to /var/log/audit by scriptd with a severity of 'notice'.

The unexpected argument mentioned in the error varies depending on the iApp being deployed and on the settings you configure. You may also see 'snatpool', 'ldap', etc.

Conditions:
This issue occurs when:

-- The BIG-IP system is configured with multiple users of varying roles.

-- The scriptd daemon has already spawned the maximum number (5) of allowed child processes to serve its queue, and all the processes were assigned a low 'security context'. This can happen, for instance, if a low-privileged user (such as an Auditor) has been looking at the configuration of iApps using the GUI a lot.

-- Subsequently, a high-privileged user (such as an Administrator) attempts to deploy a new iApp or reconfigure an existing one.

Note: You can inspect the number of child processes already created by scriptd by running the following command:

pstree -a -p -l | grep scriptd | grep -v grep

However, it is not possible to determine their current 'security context'.

Impact:
New iApps cannot be deployed. Existing iApps cannot be re-configured.

Workaround:
Restart scriptd. To restart scriptd, run:

bigstart restart scriptd

Running this command has no negative impact on the system.

The workaround is not permanent; the issue may occasionally recur depending on your system usage.

Fix:
The system now stops all scriptd child processes and creates new ones with the new user security-context when the user changes.

797797-4 : CVE-2019-11811 kernel: use-after-free in drivers

Solution Article: K01512680

797769-9 : Linux vulnerability : CVE-2019-11599

Solution Article: K51674118

796601-2 : Invalid parameter in errdefsd while processing hostname db_variable

Component: TMOS

Symptoms:
Errdefsd crashes, creates a core file, and restarts.

Conditions:
The conditions under which this occurs are unknown.

Impact:
Possible loss of some logged messages.

Workaround:
None.

795649-5 : Loading UCS from one iSeries model to another causes FPGA to fail to load

Component: TMOS

Symptoms:
When loading a UCS file from one iSeries model to a different iSeries model, the FPGA fails to load due to a symlink in the UCS file pointing to the firmware version for the source device.

The system will remain in INOPERATIVE state, and messages similar to the following will be seen repeatedly in /var/log/ltm:

-- emerg chmand[7806]: 012a0000:0: FPGA firmware mismatch - auto update, No Interruption!
-- emerg chmand[7806]: 012a0000:0: No HSBe2_v4 PCIs found yet. possible restart to recover Dataplane.
-- emerg chmand[7806]: 012a0000:0: Dataplane INOPERABLE - Incorrect number of HSBs:0, Exp:1, TMMs: 2
-- err chmand[7806]: 012a0003:3: HAL exception publishing switch config: Dataplane INOPERABLE - Incorrect number of HSBs:0, Exp:1, TMMs: 2

Conditions:
Loading a UCS from one iSeries model onto another model, for example, from an i7800 onto an i11400-ds, or from an i2600 to an i5600.

Impact:
FPGA fails to load; the BIG-IP system becomes unusable.

Workaround:
1. Update the symbolic link /config/firmware/hsb/current_version to point to the correct firmware file for the hardware model in use. Here are some examples:

-- For the i2800:

# ln -sf /usr/firmware/hsbe2v4_atlantis/L7L4_BALANCED_FPGA /config/firmware/hsb/current_version

-- For the i7800:

# ln -sf /usr/firmware/hsbe2v2_discovery/L7L4_BALANCED_FPGA /config/firmware/hsb/current_version

-- For the i11400-ds:

# ln -sf /usr/firmware/hsbe2_discovery_turbo/L7L4_BALANCED_FPGA /config/firmware/hsb/current_version

2. Reboot the system

794417-4 : Modifying enforce-tls-requirements to enabled on the HTTP/2 profile when renegotiation is enabled on the client-ssl profile should cause validation failure but does not★

Component: Local Traffic Manager

Symptoms:
On a single virtual server, when 'TLS Renegotiation' is enabled in an associated Client SSL profile, the system should prevent enabling the 'Enforce TLS Requirements' option in the associated HTTP/2 profile.

Conditions:
BIG-IP system validation does not prevent this configuration in the following scenario:

1. Disable the 'Enforce TLS Requirements' option in the HTTP/2 profile.
2. Enable 'TLS Renegotiation' in the Client SSL profile.
3. Enable the 'Enforce TLS Requirements' option in the HTTP/2 profile.

Impact:
The configuration does not load if saved, and reports an error:

01070734:3: Configuration error: In Virtual Server (/Common/http2vs) an http2 profile with enforce-tls-requirements enabled is incompatible with clientssl profile '/Common/my_clientssl'; renegotiation must be disabled.

Workaround:
If enabling 'Enforce TLS Requirements' in an HTTP/2 profile configured on a virtual server, ensure that 'TLS Renegotiation' is disabled in all Client SSL profiles on that virtual server.

Fix:
Added a missing validation check for TLS Renegotiation and Enforce TLS Requirements.

Behavior Change:
BIG-IP validation now requires TLS Renegotiation of the SSL profile to be disabled when the TLS Enforcement requirement (RFC7540) is enabled in the HTTP/2 profile

793121-5 : Enabling sys httpd redirect-http-to-https prevents vCMP host-to-guest communication

Component: TMOS

Symptoms:
A vCMP guest cannot access software images and hotfix ISOs from the host. The vCMP host cannot gather status information from the vCMP guest, for example, high availability (HA) status, provisioning, and installed software information.

Conditions:
The TMUI redirect-http-to-https is enabled.

Impact:
A vCMP guest cannot access software images and hotfix ISOs from the host. The vCMP host cannot gather status information from the vCMP guest, for example, HA status, provisioning, and installed software information.

Workaround:
On the vCMP guest, disable sys httpd redirect-http-to-https.

793017-3 : Files left behind by failed Attack Signature updates are not cleaned

Component: Application Security Manager

Symptoms:
If an Attack Signature update encounters an error during installation, files that are meant to be temporary are left behind on disk and a not subject to a periodic cleanup. This can eventually lead to disk space issues.

Conditions:
Attack Signature update encounters an error during installation.

Impact:
This can eventually lead to disk space issues.

Workaround:
Old sigfile.tmp.* directories under /var/ts/var/tmp can be safely removed.

Fix:
These directories are now included in the periodic file cleanup task.

793005-1 : 'Current Sessions' statistic of MRF/Diameter pool may be incorrect

Component: Service Provider

Symptoms:
In MRF/Diameter deployment, the LTM pool 'Current Sessions' statistics may show an unusually large number, such as 18446744073709551606.

Conditions:
There is a Diameter answer that does not match a pending request, the answer message is dropped, but BIG-IP system still decrements the 'Current Sessions' counter. If the counter is already zero, it can underflow.

Impact:
'Current Sessions' statistics can be used to track number of pending requests in the queue. When it underflows, the number becomes useless, making troubleshooting more difficult.

Workaround:
None.

Fix:
'Current Sessions' statistics of MRF/Diameter pool reports correctly.

791669-2 : TMM might crash when Bot Defense is configured for multiple domains

Component: Application Security Manager

Symptoms:
TMM might crash and generate a core file when using a Bot Defense profile that is configured for multiple domains.

Conditions:
Bot Defense is configured with multiple 'Related Site Domains' and attached to a virtual server.

Impact:
TMM crash with core. Traffic disrupted while tmm restarts.

Workaround:
None,

Fix:
TMM no longer crashes when Bot Defense is configured for multiple domains.

790845-4 : An In-TMM monitor may be incorrectly marked down when CMP-hash setting is not default

Component: Local Traffic Manager

Symptoms:
An In-TMM monitor may be marked down when the CMP-hash (Cluster Multiprocessing) is set to non-default value.

Conditions:
-- There is a configured In-TMM monitor (K11323537).
-- CMP-hash is set to non-default value.

Note: For information about In-TMM monitoring, see K11323537: Configuring In-TMM monitoring :: https://support.f5.com/csp/article/K11323537.

Impact:
An In-TMM monitor is falsely marked as down.

Workaround:
Use default settings for a CMP-hash.

Fix:
An In-TMM monitor is not marked down when a non-default CMP-hash is in use.

789921-5 : TMM may restart while processing VLAN traffic

Solution Article: K03386032

789857 : "TCP half open' reports drops made by LTM syn-cookies mitigation.

Component: Advanced Firewall Manager

Symptoms:
'TCP half open' reports drops in logs/tmctl/AVR even though it is configured in detect-only mode.

Conditions:
-- 'TCP half open' attack is being actively detected.
-- LTM syn-cookie mitigation is enabled.
-- This is triggered when LTM syn-cookies mitigation begins.

Impact:
It will appear that 'TCP half open' is doing mitigation, but it is actually LTM syn-cookies dropping the connections.

Workaround:
If LTM syn-cookies are not needed, disable the option:

modify ltm global-settings connection default-vs-syn-challenge-threshold infinite global-syn-challenge-threshold infinite

789421-4 : Resource-administrator cannot create GTM server object through GUI

Component: Global Traffic Manager (DNS)

Symptoms:
Users logged in with a role of resource-administrator are unable to create a GTM server object via GUI. The warning banner reports 'No Access'.

Conditions:
A user with a role of resource-administrator attempts to create a GTM server object.

Impact:
Unable to create GTM server object via the GUI.

Workaround:
Use tmsh or iControl/REST.

789181-5 : Link Status traps are not issued on VE based BIG-IP systems

Component: TMOS

Symptoms:
The Link Status traps, both F5 proprietary and standard LinkUp/LinkDown are issued on the BIG-IP hardware but not on BIG-IP Virtual Edition (VE) configurations.

Conditions:
This occurs when interfaces on hardware-based BIG-IP systems or VE-based BIG-IP configurations experience link status events (links go up or down, or are administratively enabled or disabled).

Impact:
Log messages are issued and SNMP traps are issued if an SNMP trap destination is configured.

On a VE-based BIG-IP system, these logs and traps do not occur.

An SNMP client waiting for a Link Status trap on an administrative enable or disable then, does not receive the trap.

Workaround:
None.

Fix:
VE now issues link status messages (which will cause traps to be issued) when interfaces on VEs are administratively disabled and enabled. The underlying interface status impacted by cables being plugged/unplugged must be monitored on the underlying system (the hypervisor) and is not logged by VE. If an interface on VE is not configured, then it is in the uninitialized state. If the interface in that state is disabled/enabled, the Link status message issued on enable is Link DOWN.

788753-2 : GATEWAY_ICMP monitor marks node down with wrong error code

Component: Local Traffic Manager

Symptoms:
Pool state shows down when there is no route configured to node.

Conditions:
-- In-tmm gateway_icmp monitor configured for a node or pool member.
-- There is no route to the node or pool member.

Impact:
The pool member or node is marked down and the reason listed is 'timeout', instead of 'no route to host'.

Workaround:
None.

788625-1 : A pool member is not marked up by the inband monitor even after successful connection to the pool member

Component: Service Provider

Symptoms:
1. Pool member is still shown as down even after BIG-IP has connected to it.
2. If a pool has only one pool member, continuous logs are seen in /var/log/ltm, at the frequency of auto-init interval and in-band timer interval mentioning about pool member being in-active and active respectively.

Conditions:
-- Auto-init is enabled to continuously try connecting the pool member
-- An inband monitor is configured
-- The inband monitor's retry interval is slightly less than auto-init interval

Impact:
Pool member marked down, even though the pool member is up

Workaround:
Configure the inband monitor's retry interval to be the lowest interval possible, which is 1 second.

Fix:
Pool member should be marked as up by the inband monitor, when the pool member comes up and connection to it is successful.

788577-7 : BFD sessions may be reset after CMP state change

Component: TMOS

Symptoms:
A CMP (Clustered Multiprocessing) state change occurs when the state of the BIG-IP system changes.

This happens in the following instances:
  - Blade reset.
  - Booting up or shutting down.
  - Running 'bigstart restart'.
  - Setting a blade state from/to primary/secondary.

During these events, Bidirectional Forwarding Detection (BFD) session processing ownership might be migrating from old, processing TMMs to new, selected TMMs. This process is rapid and could lead to contest between several TMMs over who should be the next BFD processing owner.

It might also lead to a situation where the BFD session is deleted and immediately recreated.

This problem occurs rarely and only on a chassis with more than one blade.

Conditions:
-- VIPRION chassis with more than one blade.
-- CMP hash of affected VLAN is changed from the Default value, for example, to Source Address.
-- BFD peering is configured.
-- CMP state change is occurred on one of the blades.
-- BFD connection is redistributed to the processing group (TMMs) on the blade that experienced the CMP state change and the contest between the old TMM owner and the new TMM owner occurs.

Impact:
When the BFD session is recreated, it marks corresponding routing protocol DOWN if it's configured. The protocol might be BGP, OSPF, or any other routing protocols that support BFD.

This causes the routing protocol to withdraw dynamic routes learnt by the configured protocol, making it impossible to advertise dynamic routes of affected routing protocols from the BIG-IP system to the configured peers. This can lead to unexpected routing decisions on the BIG-IP system or other devices in the routing mesh.

In most cases, unexpected routing decision are from networks learnt by affected routing protocols when the routing process on the BIG-IP system become unreachable. However, this state is short-lived, because the peering will be recreated shortly after the routing protocol restarts. The peering time depends on the routing configuration and responsiveness of other routing devices connected to the BIG-IP system. It's the usual routing convergence period, which includes setting the peering and exchanging routing information and routes.

Workaround:
There are two workarounds, although the latter is probably impractical:

-- Change CMP hash of affected VLAN to the Default value.
-- Maintain a chassis with a single blade only. Disable or shut down all blades except one.

Fix:
BFD session is no longer reset during CMP state change.

788513-6 : Using RADIUS::avp replace with variable produces RADIUS::avp replace USER-NAME $custom_name warning in log

Component: Service Provider

Symptoms:
A configuration warning is produced when the RADIUS avp command is used with a variable instead of a constant, for example:

warning: [The following errors were not caught before. Please correct the script in order to avoid future disruption. "unexpected end of arguments;expected argument spec:integer"102 45][RADIUS::avp replace USER-NAME $custom_name]

This appears to be benign, as the configuration loads successfully, and the script works as expected.

Conditions:
Using:
RADIUS::avp replace USER-NAME $custom_name

Instead of:
RADIUS::avp replace USER-NAME "static value"

Impact:
Incorrect warning in log. You can ignore these messages, as the configuration loads successfully, and the script works as expected.

Workaround:
This warning is benign, as the configuration loads successfully, and script works as expected.

788465-5 : DNS cache idx synced across HA group could cause tmm crash

Component: Global Traffic Manager (DNS)

Symptoms:
DNS cache idx conflicts and tmm crash.

Conditions:
-- High availability (HA) configuration.
-- DNS cache is configured and synced to the peer twice
-- A second DNS cache is configured on the peer.

Impact:
The idx conflicts will be observed. If the second DNS cache is of another type and is added to a virtual server, accessing that virtual server might cause a tmm core. Traffic disrupted while tmm restarts.

Workaround:
On the BIG-IP system that has the DNS cache idx conflicts, restart tmm:
# bigstart restart tmm

788057-3 : MCPD may crash while processing syncookies

Solution Article: K00103216

787885-2 : The device status is falsely showing as forced offline on the network map while actual device status is not.

Component: TMOS

Symptoms:
Network Map in GUI shows incorrect [Forced Offline] status.

Conditions:
-- Multi-blade system
The device status in the network map is falsely shown [Forced Offline] when actual device status is something else other than [Forced Offline]. In other words, it is always shown as [Forced Offline].

-- Non multi-blade system
The device status in the network map is falsely shown [Forced Offline] when actual device status is something else other than [Active] or [Forced Offline]. In other words, it displays fine only for [Active] and [Forced Offline].

Impact:
The device status in the network map is not reliable

Workaround:
None.

786517-5 : Modifying a monitor Alias Address from the TMUI might cause failed config loads and send monitors to an incorrect address

Component: Local Traffic Manager

Symptoms:
- Monitors are firing and are being sent to a pool-member or node address rather than a monitor's alias address.

- Running the command 'tmsh load /sys config' reports an error:
01070038:3: Monitor /Common/a-tcp address type requires a port.

Conditions:
-- Create a monitor without an alias address.
-- Modify the monitor later in the TMUI to specify an alias address.

Impact:
Monitors are sent to an incorrect IP address.

tmsh load /sys config will fail to load the configuration.

Workaround:
There are two workarounds:
-- Delete and recreate the monitor and specify the correct alias address at creation time.

-- Fix the monitor definition using tmsh.

785877-5 : VLAN groups do not bridge non-link-local multicast traffic.

Component: Local Traffic Manager

Symptoms:
VLAN groups do not bridge non-link-local multicast traffic.

Conditions:
-- VLAN groups configured.
-- Using non-link-local multicast traffic.

Impact:
Non-link-local multicast traffic does not get forwarded.

Workaround:
None.

Fix:
VLAN groups now bridge non-link-local multicast traffic.

785741-3 : Unable to login using LDAP with 'user-template' configuration

Solution Article: K19131357

Component: TMOS

Symptoms:
Unable to login as remote-user.

Conditions:
When the following are true:
-- LDAP remote-auth configured with user-template.
-- Remote-user configured to permit login.

Impact:
Unable to login with remote-user.

Workaround:
Use bind-dn for authentication.

785017-3 : Secondary blades go offline after new primary is elected

Component: TMOS

Symptoms:
Secondary active blades go offline.

Conditions:
-- Cluster with three or more active blades.
-- Primary blade is rebooted.

For example, on a 4-bladed system, after slot 1 (primary blade) was rebooted and slot 2 (secondary blade) takes over as primary, slots 3 and 4 both go offline due to high availability (HA) table, with the logs showing reason as 'waiting for configuration load'.

Impact:
Cluster reduced to a single blade, which may impact performance.

Workaround:
None.

783165-1 : Bot Defense whitelists does not apply for url "Any" after modifying the Bot Defense profile

Component: Application Security Manager

Symptoms:
When creating a whitelist in the Bot Defense profile with url "Any" - after modifying the Bot Defense log profile, the whitelist does not apply anymore.

Conditions:
-- Bot Defense profile is attached to the Virtual Server
-- Adding a whitelist to the Bot Defense profile with url "Any"
-- Modifying the Bot Defense profile afterwards.

Impact:
Whitelist does not apply - users from the defined IP/GEO location might be blocked.

Workaround:
Delete and add the whitelist after modifying the profile.

Fix:
Keep the whitelist as is when updating bot profile.

783125-1 : iRule drop command on DNS traffic without Datagram-LB may cause TMM crash

Component: Global Traffic Manager (DNS)

Symptoms:
The TMM may crash and restart when an iRule on a DNS virtual server performs the 'drop' command while the BIG-IP system is handling both a DNS request and DNS response at the same time for the same DNS client IP and port without UDP Datagram-LB.

Conditions:
-- The BIG-IP instance has two or more TMM processes as a result of having two or more physical cores or virtual CPUs.
-- A virtual server with both DNS and UDP profiles and one or more iRules.
-- The UDP profile has Datagram LB disabled.
-- The iRules have a 'drop' command.
-- The iRules have a DNS_REQUEST and/or DNS_RESPONSE event with an iRule command that require coordinating data with another TMM on the system, such as the 'table' command.

Impact:
TMM crash or restart. Traffic impacted. Traffic disrupted while tmm restarts.

Workaround:
F5 strongly recommends using a UDP profile with Datagram-LB enabled for DNS UDP virtual servers.

Alternatively, replace the 'drop' command with DNS::drop in DNS_REQUEST and DNS_RESPONSE events, or with UDP::drop in other iRule events.

See the respective references pages for DNS::drop and UDP::drop for the Valid Events each iRule command is available in:
https://clouddocs.f5.com/api/irules/DNS__drop.html
https://clouddocs.f5.com/api/irules/UDP__drop.html

779857-2 : Misleading GUI error when installing a new version in another partition★

Component: TMOS

Symptoms:
While installing a new version in another partition, the GUI displays an error for a brief time:

'Install Status':Failed Troubleshooting

Conditions:
Install a new version in another partition.

Impact:
The GUI error is misleading. It is showing the install status as 'Failed Troubleshooting' even though the installation is proceeding normally. The installation process is proceeding normally; only the error is incorrect and does not indicate a problem with the installation.

Workaround:
If you click on the 'Troubleshooting' link on the GUI screen, the GUI indicates that it is actually installing properly without any error.

778261-2 : CPB connection is not refreshed when updating BIG-IQ logging node domain name or certificate

Component: Application Security Manager

Symptoms:
CPB Connection (between BIG-IP and BIG-IQ logging node) is not refreshed to use the new certificate / new domain name to validate the certificate.

Conditions:
Either:
-- BIG-IQ logging node domain name updated.
-- BIG-IQ logging node webd certificate is replaced (and updated using webd restart).

Impact:
CPB Connection (between BIG-IP and BIG-IQ logging node) remains the same and is not refreshed to use the new certificate.

Workaround:
Restart Policy Builder on the BIG-IP system:

killall -s SIGHUP pabnagd

Fix:
Policy Builder now resets the connection upon update of BIG-IQ logging node certificate / domain name.

778049-2 : Linux Kernel Vulnerability: CVE-2018-13405

Solution Article: K00854051

776393-3 : Restjavad restarts frequently due to insufficient memory with relatively large configurations

Component: TMOS

Symptoms:
Restjavad restarts frequently -- approximately every 5 minutes -- due to the JVM heap running out of memory

Conditions:
-- BIG-IP system with no extra memory given to restjavad.
-- The configuration contains a large number of configuration items related to APM access-policies, APM policy-items, APM policy agents, LTM nodes, LTM rules, DNS Requests, sys application services, LTM data-groups, LTM profiles, security bot-defense profiles, and sys file ssl-certs.

Impact:
REST API intermittently unavailable.

Workaround:
Give restjavad extra memory, using the following commands. The example below allocates 2 GB of extra memory to restjavad:

tmsh modify sys db restjavad.useextramb value true
tmsh modify sys db provision.extramb value 2000
bigstart restart restjavad

To persist the change above with system reboots, save the configuration with:

tmsh save sys config

Fix:
Default restjavad heap memory has been increased to 384MB

774617-3 : SNMP daemon reports integer truncation error for values greater than 32 bits

Component: TMOS

Symptoms:
Some values sent to SNMP can grow too large over time, causing an integer truncation error.

Conditions:
Values greater than 32 bits sent to SNMP.

Impact:
SNMP values are truncated. An error message is logged in var/log/daemon.log:

err snmpd[20680]: truncating integer value > 32 bits

Workaround:
No current workaround.

774257-4 : tmsh show gtm pool and tmsh show gtm wideip print duplicate object types

Component: Global Traffic Manager (DNS)

Symptoms:
Tmsh show gtm pool and show gtm wideip commands with field-fmt will display the object type twice in the output. For example:

tmsh> show gtm pool a field-fmt
gtm pool pool emptypool:A

tmsh> show gtm wideip a field-fmt
gtm wideip wideip testwip.f5.com:A

Conditions:
This occurs when running the following tmsh commands:

tmsh show gtm pool <poolname> field-fmt
tmsh show gtm wideip <wideipname> field-fmt

Impact:
The output type is printed twice

Workaround:
None.

Fix:
The output becomes like this after fix:

gtm pool a emptypool

gtm wideip a testwip.f5.com

773693-7 : CVE-2020-5892: APM Client Vulnerability

Solution Article: K15838353

773253-5 : The BIG-IP may send VLAN failsafe probes from a disabled blade

Component: Local Traffic Manager

Symptoms:
The BIG-IP system sends multicast ping from a disabled blade. tmm core

Conditions:
-- There is one or more blades disabled on the VIPRION platform.
-- VLAN failsafe is enabled on one or more VLANs.
-- the VLAN failsafe-action is set to 'failover'.
-- There is more than one blade installed in the chassis or vCMP guest.

Impact:
The BIG-IP system sends unexpected multicast ping requests from a disabled blade.

Workaround:
To mitigate this issue, restart tmm on the disabled blade. This causes tmm to stop sending the multicast traffic.

Impact of workaround: Traffic disrupted while tmm restarts.

771961-3 : While removing SSL Orchestrator from the SSL Orchestrator user interface, TMM can core

Component: Access Policy Manager

Symptoms:
If the device is active at the time and is passing traffic, if the SSL Orchestrator configuration is deleted, tmm can core.

Conditions:
SSL Orchestrator device is active and passing traffic while being deleted.

Impact:
TMM cores. Traffic disrupted while tmm restarts.

Workaround:
None.

Fix:
Fixed a tmm core related to deleting SSL Orchestrator.

768085-4 : Error in python script /usr/libexec/iAppsLX_save_pre line 79

Component: iApp Technology

Symptoms:
While creating a UCS file, you see a confusing error message, and the UCS file is not created:
Failed task: %s: %s"%(taskUri, taskResult['message']))"

Conditions:
This can be encountered while trying to create a UCS file.

Impact:
Certain failure messages are not interpreted correctly by the script, resulting in the actual error message not being displayed.

Workaround:
None.

767737-4 : Timing issues during startup may make an HA peer stay in the inoperative state

Component: TMOS

Symptoms:
When two BIG-IP systems are paired, it is possible during startup for the network connection to be made too early during the boot sequence. This may leave a peer in the inoperative state.

Conditions:
This is a timing-related issue that might occur during boot up of high availability (HA) peers.

Impact:
An HA peer does not become ACTIVE when it should.

Workaround:
None.

767341-1 : If the size of a filestore file is smaller than the size reported by mcp, tmm can crash while loading the file.

Component: Local Traffic Manager

Symptoms:
Repeated TMM service crash SIGBUS with memory copy operation at the top of stack trace.

Conditions:
TMM loads filestore file and size of this file is smaller than the size reported by mcp or if this ifile store is not present at all.

This condition is possible due to
- filesystem errors/corruption or
- BIG-IP user intervention.

Filesystem error might be due to power loss, full disk or other reasons.

Impact:
TMM crash.
The program terminated with signal SIGBUS, Bus error.

Workaround:
Manual copy of the "good" ifile store and forceload on the previously bad unit. Usually trivial, but error prone.

Another workaround is clean install, if possible/acceptable

767269-5 : Linux kernel vulnerability: CVE-2018-16884

Component: TMOS

Symptoms:
Linux kernel NFS41+ subsystem use-after-free vulnerability when node have NFSv41+ mounts inside several net namespaces.

Conditions:
NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic.

Impact:
BIG-IP is not exposed to this vulnerability. use-after-free causes system panic, subsequent system reset.

Workaround:
None.

Fix:
Updated kernel to include patches for CVE-2018-16884.

766017-6 : [APM][LocalDB] Local user database instance name length check inconsistencies★

Component: Access Policy Manager

Symptoms:
Tmsh accepts long localdb instance names, but ldbutil later refuses to work with names longer than 64 characters.

The GUI limits the instance name length to 64 characters including the partition prefix, but this is not obvious to the admin.

Conditions:
-- Create a 64 character long local user database instance using tmsh.
-- Try to add users to this instance or try to delete the instance from the GUI.

Impact:
A tmsh-created localdb instance with a name length greater than 64 characters can be created but cannot be used.

Workaround:
Delete instance from tmsh and re-create it with a shorter name.

Fix:
Tmsh now enforces the length limit for localdb instance names.

761303-5 : Upgrade of standby BIG-IP system results in empty Local Database

Component: Access Policy Manager

Symptoms:
Upgrade of standby BIG-IP system results in empty Local Database.

Conditions:
This happens on standby device in a high availability (HA) setup.

Impact:
All previously existing local users disappear from the standby device. If a failover happens, then none of the local users will be able to login now.

Workaround:
To trigger a full database dump from the active BIG-IP system that returns the standby device's database to its original state, on the standby device, after rebooting into the volume with the upgraded installation, do the following:

1. Force stop the localdbmgr process:
bigstart stop localdbmgr
2. Wait at least 15 minutes.
3. Restart the localdbmgr:
bigstart restart localdbmgr

760629-5 : Remove Obsolete APM keys in BigDB

Component: Access Policy Manager

Symptoms:
Several APM/Access BigDB keys are obsolete

Conditions:
This is encountered on BIG-IP software installations.

Impact:
The db keys are obsolete and can be safely ignored.

Workaround:
None

Fix:
The following db keys have been removed from the system:

Log.AccessControl.Level
Log.ApmAcl.Level
Log.SSO.Level
Log.swg.Level
Log.AccessPerRequest.Level
Log.access.syslog
Log.access.db

760622-5 : Allow Device Certificate renewal from BIG-IP Configuration Utility

Component: TMOS

Symptoms:
Unable to renew Device Certificate from System :: Certificate Management : Device Certificate Management : Device Certificate :: server.crt in non-English BIG-IP configurations.

Conditions:
Attempting to renew a device certificate on the System :: Certificate Management : Device Certificate Management : Device Certificate :: using the server.crt-equivalent on a non-English BIG-IP system.

Impact:
Unable to renew Device Certificate from the BIG-IP Configuration Utility.

Workaround:
Use a command of the following syntax, replacing key name, cert name, and # of days with your values:

openssl req -new -x509 -key ../ssl.key/server.key -days <# of days> -out server.crt

For example, to renew the siteserver.key and siteserver.crt for 90 days, use the following command:

openssl req -new -x509 -key ../ssl.key/siteserver.key -days 90 -out siteserver.crt

Fix:
The system now allows Device Certificate renewal from BIG-IP Configuration Utility.

760471-1 : GTM iQuery connections may be reset during SSL key renegotiation.

Component: Global Traffic Manager (DNS)

Symptoms:
During routine iQuery SSL renegotiation, the iQuery connection will occasionally be reset.

Conditions:
This occurs occasionally during routine renegotiation. Renegotiation occurs once very 24 hours, per connection, by default (but can be controlled by the db key big3d.renegotiation.interval)

Impact:
The affected iQuery connection is briefly marked down as the connection is marked down before the connection is immediately re-established.

Workaround:
There is no workaround.

Fix:
GTM iQuery renegotiations no longer cause the error that reset the connection.

760050-8 : "cwnd too low" warning message seen in logs

Component: Local Traffic Manager

Symptoms:
The following benign message appears in the log: "cwnd too low."

The message can be seen in both tmm logs (where it shows as 'notice' severity) and also in the ltm log (where it shows as 'crit' (critical) severity).

Conditions:
The TCP congestion window has dropped below one Maximum Segment Size, which should not happen.

Impact:
None. TCP resets the congestion window to 1 MSS.

Workaround:
This message does not indicate a functional issue, so you can safely ignore this message. There is no action to take, but the presence of the message can be useful information for debugging other TCP problems.

759988-2 : Geolocation information inconsistently formatted

Component: Fraud Protection Services

Symptoms:
The ${geo} pattern in the Logging Profile has only GeoIP data; however, in alerts that are sent to either the alert server or to BIG-IQ, the GEO data includes both GeoIP and GeoLocation information.

Conditions:
Configure ${geo} pattern in Logging Profile template and trigger a logging event.

Impact:
GeoLocation data is missing in logs written by Logging Profile when using ${geo} pattern.

Fix:
The ${geo} pattern in Logging Profile template now provides full GEO informaion, both GeoIP and GeoLocation, in the same format as in alerts.

759799-3 : New rules cannot be compiled

Component: Advanced Firewall Manager

Symptoms:
When the number of firewall policy rules compiles to a blob sized over 2 GB, the blob size limit is exceeded and no new rules can be compiled. All traffic stops.

Conditions:
When compiled rules configured size exceeds 2 GB after a new rule is added.

Impact:
New rules cannot be compiled. Traffic stops.

Workaround:
Remove rules until the rules compile successfully.

759564-2 : GUI not available after upgrade

Component: TMOS

Symptoms:
After installing over the top of a previous version, the Management GUI is inaccessible while SSH access works. You may see one or more of the following conditions

    Shell prompt may show logger[1234]: Re-starting named
    bigstart restart httpd fails
    bigstart start httpd fails

Conditions:
Installation over a previously used Boot Volume

Impact:
Corrupt install

Workaround:
Boot back to previous boot volume and then delete the boot volume containing the failed install.

758599-3 : IPv6 Management route is preferred over IPv6 tmm route

Component: Local Traffic Manager

Symptoms:
The IPv6 Management route has lower metric than the static IPv6 tmm route. As a result, traffic that matches the default route goes to the mgmt interface.

Conditions:
Create an IPv6 mgmt route and a static IPv6 tmm route on the same BIG-IP system. IPv6 routes from TMM are injected at metric 1024.

Impact:
The incorrect routing table sends the traffic that matches the default route to the mgmt interface.

Workaround:
None.

Fix:
The IPv4 and IPv6 management routes now have a metric value of 4096. Default value of static routes are 1 for IPv4 and 1024 for IPv6. This makes static routes (TMM routes) preferred over management routes, which is correct behavior.

758336-5 : Incorrect recommendation in Online Help of Proactive Bot Defense

Component: Application Security Manager

Symptoms:
The online help of Proactive Bot Defense within the DoS profile shows the following under the 'Cross-Domain Requests' section:

Allow configured domains; validate in bulk: ... We recommend this option if your web site has many cross-domain resources.

Allow configured domains; validate upon request: ... We recommend this option if your web site does not have many cross-domain resources.

The recommendation is actually the reverse: for many cross-domain resources, it is better to use 'validate upon request'.

Conditions:
Application has multiple cross-domain resources.

Impact:
Confusing documentation. The recommendation is actually the reverse: for many cross-domain resources, it is better to use 'validate upon request'.

Workaround:
For many cross-domain resources, it is better to use 'validate upon request'.

Fix:
The online help of Proactive Bot Defense has been corrected under the 'Cross-Domain Requests' section.

757279-3 : LDAP authenticated Firewall Manager role cannot edit firewall policies

Component: Advanced Firewall Manager

Symptoms:
The system posts the following message when the LDAP authenticated Firewall Manager role creates/modifies a firewall policy with rules or upgrading existing firewall policy:
User does not have modify access to object (fw_uuid_config).

Conditions:
-- Log in using an account with the Firewall Manager role.
-- Create/modify firewall policy with rules or upgrade existing firewall policy.

Impact:
Firewall modification operations fail with access to object (fw_uuid_config) error.

Workaround:
None.

Fix:
Firewall manager can now edit firewall policies.

756812-3 : Nitrox 3 instruction/request logger may fail due to SELinux permission error

Component: Local Traffic Manager

Symptoms:
When the tmm Nitrox 3 queue stuck problem is encountered, the Nitrox 3 code tries to log the instruction/request, but it may fail due to SELinux permissions error.

The system posts messages in /var/log/ltm similar to the following:

-- crit tmm1[21300]: 01010025:2: Device error: n3-compress0 Nitrox 3, Hang Detected: compression device was reset (pci 00:09.7, discarded 54).
-- crit tmm1[21300]: 01010025:2: Device error: n3-compress0 Failed to open instruction log file '/shared/nitroxdiag/instrlog/tmm01_00:09.7_inst.log' err=2.

Conditions:
-- tmm Nitrox 3 queue stuck problem is encountered.
-- The Nitrox 3 code tries to log the instruction/request.

Impact:
Error messages occur, and the tmm Nitrox 3 code cannot log the instruction/request.

Workaround:
None.

Fix:
Nitrox 3 queue stuck occurrences are now logged as expected.

756139-3 : Inconsistent logging of hostname files when hostname contains periods

Component: TMOS

Symptoms:
Some logs write the hostname with periods (eg, say for FQDN. For example, /var/log/user.log and /var/log/messages files log just the hostname portion:

-- user.log:Aug 5 17:05:01 bigip1 ).
-- messages:Aug 5 16:57:32 bigip1 notice syslog-ng[2502]: Configuration reload request received, reloading configuration.

Whereas other log files write the full name:

-- daemon.log:Aug 5 16:58:34 bigip1.example.com info systemd[1]: Reloaded System Logger Daemon.
-- maillog:Aug 5 16:55:01 bigip1.example.com err sSMTP[12924]: Unable to connect to "localhost" port 25.
-- secure:Aug 5 17:02:54 bigip1.example.com info sshd(pam_audit)[2147]: 01070417:6: AUDIT - user root - RAW: sshd(pam_audit): user=root(root) partition=[All] level=Administrator tty=ssh host=10.14.13.20 attempts=1 start="Mon Aug 5 17:02:30 2019" end="Mon Aug 5 17:02:54 2019".
-- ltm:Aug 5 17:02:42 bigip1.example.com warning tmsh[2200]: 01420013:4: Per-invocation log rate exceeded; throttling.

Conditions:
BIG-IP hostname contains periods or an FQDN:

[root@bigip1:Active:Standalone] log # tmsh list sys global-settings hostname
sys global-settings {
hostname bigip1.example.com
}

Impact:
Hostname is logged inconsistently. Some logs write the full hostname (FQDN), while other log files write only the hostname portion. This can make searching on hostname more complicated.

Workaround:
None.

Fix:
Hostnames are now written consistently for all log files in /var/log directory.

Behavior Change:
Syslog-ng was using truncated hostname (without FQDN) while logging. This release adds fqdn use_fqdn(yes) in the syslog-ng template, so the system now logs the full hostname (FQDN).

755317-3 : /var/log logical volume may run out of space due to agetty error message in /var/log/secure

Component: TMOS

Symptoms:
An agetty error message is output to the /var/log/secure log fil every 10 seconds while the instance remains on:

agetty[<process_id>]: /dev/tty0 ttyS0: No such file or directory.

Conditions:
This agetty error message is an issue on all BIG-IP Virtual Edition and Cloud instances. It is not configuration-dependent.

Impact:
This may fill the /var/log/secure log file. When /var/log is full, certain system services may degrade or become unresponsive (e.g., DNS).

Workaround:
Manually extend the /var/log logical volume.

For more information, see Increase disk space for BIG-IP VE :: https://clouddocs.f5.com/cloud/public/v1/shared/disk_space.html.

Fix:
The issue causing the agetty error message in /var/log/secure has been resolved.

755197-5 : UCS creation might fail during frequent config save transactions

Component: TMOS

Symptoms:
If 'tmsh save sys config' is run simultaneously with 'tmsh save sys ucs <file>', there is the possibility of a race condition where a file gets scheduled to be added to the UCS file, but gets deleted by the save-config before it actually gets saved.

Conditions:
-- Run 'save sys config' at the same time as 'save sys ucs <file>' in tmsh.
-- Files are getting added by one tmsh command, yet deleted by the other. For example, when deleting a file that has not been saved to the configuration, while the system tried to create a UCS that contains that to-be-deleted file.

Note: There are many operations in which 'save sys config' is performed internally, so running the 'save sys ucs <file>' operation might encounter the timing error any time, even when you are not manually running 'save sys config'.

Impact:
The UCS is not created, and system posts messages similar to the following:
-- config/bigip_base.conf/: Cannot stat: No such file or directory.
-- Exiting with failure status due to previous errors.
-- Operation aborted.

This is a rare, timing-related occurrence. Even though the 'save sys ucs <file>' aborts and logs errors, simply re-running the command is likely to succeed.

Workaround:
Re-run the 'save sys ucs <file>' after it aborts. Nothing else needs to be changed or restored.

Fix:
The race condition is avoided and the 'save sys ucs <file>' now succeeds due to files removed by 'save sys config'.

754932-1 : New SNMP MIB, sysVlanIfcStat, for VLAN statistics.

Component: TMOS

Symptoms:
V16.0.0 and v15.1.2 have a new SNMP MIB, sysVlanIfcStat, for VLAN statistics. Previously there were no ways to retrieve PVA statistics for each VLAN.

Conditions:
Viewing VLAN statistics through SNMP queries.

Impact:
PVA stats are not displayed.

Fix:
The new MIB, sysVlanIfcStat, includes several new statistics, including PVA statistics.
Example:

snmpwalk -v2c -c public localhost F5-BIGIP-SYSTEM-MIB::sysVlanIfcStat
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatNumber.0 = INTEGER: 3
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatName."/Common/HA" = STRING: /Common/HA
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatName."/Common/external" = STRING: /Common/external
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatName."/Common/internal" = STRING: /Common/internal
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatInDiscards."/Common/HA" = Gauge32: 3
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatInDiscards."/Common/external" = Gauge32: 1
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatInDiscards."/Common/internal" = Gauge32: 4
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatInErrors."/Common/HA" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatInErrors."/Common/external" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatInErrors."/Common/internal" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatInUnknownProtos."/Common/HA" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatInUnknownProtos."/Common/external" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatInUnknownProtos."/Common/internal" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatOutDiscards."/Common/HA" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatOutDiscards."/Common/external" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatOutDiscards."/Common/internal" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatOutErrors."/Common/HA" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatOutErrors."/Common/external" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatOutErrors."/Common/internal" = Gauge32: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInOctets."/Common/HA" = Counter64: 498576
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInOctets."/Common/external" = Counter64: 4053194
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInOctets."/Common/internal" = Counter64: 499668
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInUcastPkts."/Common/HA" = Counter64: 3892
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInUcastPkts."/Common/external" = Counter64: 56086
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInUcastPkts."/Common/internal" = Counter64: 3898
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInMulticastPkts."/Common/HA" = Counter64: 3896
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInMulticastPkts."/Common/external" = Counter64: 3950
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInMulticastPkts."/Common/internal" = Counter64: 3896
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInBroadcastPkts."/Common/HA" = Counter64: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInBroadcastPkts."/Common/external" = Counter64: 30
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcInBroadcastPkts."/Common/internal" = Counter64: 12
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutOctets."/Common/HA" = Counter64: 250558
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutOctets."/Common/external" = Counter64: 3792002
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutOctets."/Common/internal" = Counter64: 252154
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutUcastPkts."/Common/HA" = Counter64: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutUcastPkts."/Common/external" = Counter64: 52115
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutUcastPkts."/Common/internal" = Counter64: 6
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutMulticastPkts."/Common/HA" = Counter64: 3906
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutMulticastPkts."/Common/external" = Counter64: 3944
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutMulticastPkts."/Common/internal" = Counter64: 3906
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutBroadcastPkts."/Common/HA" = Counter64: 5
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutBroadcastPkts."/Common/external" = Counter64: 8
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatHcOutBroadcastPkts."/Common/internal" = Counter64: 29
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaInPkts."/Common/HA" = Counter64: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaInPkts."/Common/external" = Counter64: 53198
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaInPkts."/Common/internal" = Counter64: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaInOctets."/Common/HA" = Counter64: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaInOctets."/Common/external" = Counter64: 9901246
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaInOctets."/Common/internal" = Counter64: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaOutPkts."/Common/HA" = Counter64: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaOutPkts."/Common/external" = Counter64: 53198
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaOutPkts."/Common/internal" = Counter64: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaOutOctets."/Common/HA" = Counter64: 0
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaOutOctets."/Common/external" = Counter64: 9901246
F5-BIGIP-SYSTEM-MIB::sysVlanIfcStatPvaOutOctets."/Common/internal" = Counter64: 0

754924-1 : New VLAN statistics added.

Component: TMOS

Symptoms:
The tmsh command 'show net vlan' only displays statistics for each VLAN's interface, and not each VLAN's statistics.

Conditions:
This is encountered when running the command 'tmsh show net vlan'.

Impact:
You are unable to view PVA statistics.

Fix:
The tmsh command 'show net vlan' now displays each VLAN's statistics, including PVA statistics.

Behavior Change:
Starting in v16.0.0, the command 'tmsh show net vlan' now outputs each vlan's stats retreived from TMM, including PVA stats, immediately following 'customer-tag' and right before the list of interfaces.
Example:

[root@localhost:Active:Standalone] config # tmsh sho net vlan

-------------------------------------
Net::Vlan: external
-------------------------------------
Interface Name external
Mac Address (True) f4:15:63:52:10:84
MTU 1500
Tag 4094
Customer-Tag

  | Incoming Discard Packets 2
  | Incoming Error Packets 0
  | Incoming Unknown Proto Packets 0
  | Outgoing Discard Packets 0
  | Outgoing Error Packets 0
  | HC Incoming Octets 28.8M
  | HC Incoming Unicast Packets 121.2K
  | HC Incoming Multicast Packets 121.2K
  | HC Incoming Broadcast Packets 0
  | HC Outgoing Octets 14.4M
  | HC Outgoing Unicast Packets 8
  | HC Outgoing Multicast Packets 121.2K
  | HC Outgoing Broadcast Packets 45
  | PVA Incoming Packets 5
  | PVA Incoming Octets 443
  | PVA Outgoing Packets 7
  | PVA Outgoing Octets 3.2K

  -----------------------
  | Net::Vlan-Member: 1.1
  -----------------------
  | Tagged no
  | Tag-Mode none

     --------------------------------------------------------------------
     | Net::Interface
     | Name Status Bits Bits Pkts Pkts Drops Errs Media
     | In Out In Out
     --------------------------------------------------------------------
     | 1.1 up 133.5M 31.5K 129.3K 17 36 0 10000SR-FD

-------------------------------------
Net::Vlan: internal
-------------------------------------
Interface Name internal
Mac Address (True) f4:15:63:52:10:85
MTU 1500
Tag 4093
Customer-Tag

  | Incoming Discard Packets 0
  | Incoming Error Packets 0
  | Incoming Unknown Proto Packets 0
  | Outgoing Discard Packets 0
  | Outgoing Error Packets 0
  | HC Incoming Octets 28.8M
  | HC Incoming Unicast Packets 121.2K
  | HC Incoming Multicast Packets 121.2K
  | HC Incoming Broadcast Packets 1
  | HC Outgoing Octets 14.4M
  | HC Outgoing Unicast Packets 15
  | HC Outgoing Multicast Packets 121.2K
  | HC Outgoing Broadcast Packets 17
  | PVA Incoming Packets 7
  | PVA Incoming Octets 3.2K
  | PVA Outgoing Packets 5
  | PVA Outgoing Octets 443

  -----------------------
  | Net::Vlan-Member: 1.2
  -----------------------
  | Tagged no
  | Tag-Mode none

     --------------------------------------------------------------------
     | Net::Interface
     | Name Status Bits Bits Pkts Pkts Drops Errs Media
     | In Out In Out
     --------------------------------------------------------------------
     | 1.2 up 133.5M 14.0K 129.3K 22 16 0 10000SR-FD

This feature is also available as of v15.1.2 on an 'opt-in' basis; default output is unchanged. A new db variable is available on v15.1.2 for controlling the output format. To change the output of 'tmsh show net vlan' so that it provides the new stats, run the command:

tmsh modify sys db vlan.pva.stats value enable

Output can be changed back to the old format at any time by running:

tmsh modify sys db vlan.pva.stats value disable

754855-7 : TMM may crash while processing FastL4 traffic with the Protocol Inspection Profile

Solution Article: K60344652

751586-3 : Http2 virtual does not honour translate-address disabled

Component: Local Traffic Manager

Symptoms:
Translate-address disabled on an HTTP/2 virtual server is ignored.

Conditions:
-- HTTP/2 virtual server configured.
-- Translate-address disabled.

Impact:
The traffic is still translated to the destination address to the pool member.

Workaround:
None.

Fix:
Translate-address disabled is working correctly now.

751103-2 : TMSH: 'tmsh save sys config' prompts question when display threshold is configured which is causing scripts to stop

Component: TMOS

Symptoms:
Issuing the command 'tmsh save sys config' results in a question when display threshold is set and when management routes are configured. There is no prompt when no management routes are configured. This question is posted only when management-routes are configured, and does not appear when other provisioning commands are issued and the config is saved.

Conditions:
1. Set the cli preference display-threshold to a smaller value than the default.
2. Create management routes.
3. Issue the following command:
tmsh save sys config

Impact:
When there are more items configured than the threshold, the system presents a question:
Display all <number> items? (y/n)

Scripts are stopped until the prompt is answered.

Workaround:
To prevent the question from popping up, set display threshold to 0 (zero).

In the case of this script, you can also delete the management route definitions to prevent the question from being asked.

751032-5 : TCP receive window may open too slowly after zero-window

Component: Local Traffic Manager

Symptoms:
After a zero-window, TCP reopens its receive window with init-rwnd * mss bytes if sys db tm.tcpinitwinafterxon is enabled, and grows it as data is received. For a TCP connection with a large receive window, reaching the receive window limit might take some RTTs because init-rwnd is limited to 64.

Conditions:
-- A TCP profile with large receive window size.
-- A zero-window is sent.
-- TCP receive window is reopened when data is drained.

Impact:
TCP does not have the functionality to reopen its receive window more aggressively if needed, which might result in longer transfer times.

Workaround:
None

Fix:
A new sys db (tm.tcpinitwinmultiplierafterxon) is introduced to provide TCP the functionality to reopen its receive window more aggressively after zero-window.

Behavior Change:
A new sys db (tm.tcpinitwinmultiplierafterxon) has been introduced to provide TCP the functionality to reopen its receive window more aggressively after zero-window. It has a default minimum value of 1 and can be increased to a maximum of 100.

749007-1 : South Sudan, Sint Maarten, and Curacao country missing in GTM region list

Component: TMOS

Symptoms:
South Sudan, Sint Maarten, and Curacao countries are missing from the region list.

Conditions:
-- Creating a GTM region record.
-- Create a GTM any region of Country South Sudan, Sint Maarten, or Curacao.

Impact:
Cannot select South Sudan county from GTM country list.

Workaround:
None

Fix:
South Sudan, Sint Maarten, and Curacao are now present in the GTM country list.

748561-2 : Network Firewall : Active Rules page does not list active rule entries for firewall policies associated with any context

Component: Advanced Firewall Manager

Symptoms:
In Security :: Network Firewall :: Active Rules, when selecting any context (Global, Route Domain, Virtual Server, or SelfIP), the policy associated with the Virtual Server is listed, but not the rules within that policy.

Conditions:
Applies to any context policies.

Impact:
You cannot manage rules from the Active Rules page. This is GUI display issue and does not affect functionality.

Workaround:
In Security :: Options :: Network Firewall :: Firewall Options:
Disable Inline Rules.

This reverts to the legacy editor and displays the policy details.

Fix:
Network Firewall : Active Rules page now lists active rule entries for firewall policies associated with any context.

748333-5 : DHCP Relay does not retain client source IP address for chained relay mode

Component: Local Traffic Manager

Symptoms:
The second relay in a DHCP relay chain modifies the src-address. This is not correct.

Conditions:
Using DHCP chained relay mode.

Impact:
The src-address is changed when it should not be.

Workaround:
None.

Fix:
For chained relay mode there is now an option to preserve the src-ip, controllable by 'sys db tmm.dhcp.relay.change.src'.

748122-8 : BIG-IP Vulnerability CVE-2018-15333

Solution Article: K53620021

747234-7 : Macro policy does not find corresponding access-profile directly

Component: Access Policy Manager

Symptoms:
The discovery task runs but does not apply the 'Access Access Policy' for the access policy for which the Provider is configured.

Conditions:
-- Auto-discovery is enabled for a provider.
-- Discovery occurs.

Impact:
The Access Policy is not applied after successful auto-discovery. The policy must be applied manually.

Workaround:
Apply the Access Policy manually after auto-discovery.

Fix:
Fixed an issue with not automatically applying the access policy after discovery.

747020-2 : Requests that evaluate to same subsession can be processed concurrently

Component: Access Policy Manager

Symptoms:
Requests that evaluate to the same subsession can be processed concurrently in some cases

Conditions:
-- Per-Request policy with subroutines.
-- Duplicate requests are sent that match existing subsession gating criteria.

Impact:
The request gets aborted with error messages in /var/log/apm:
apmd_plugin.cpp func: "serialize_apmd_reply()" line: 495 Msg: AccessV2 agent execution error 4.

Workaround:
None.

746861-3 : SFP interfaces fail to come up on BIG-IP 2x00/4x00, usually when both SFP interfaces are populated★

Component: TMOS

Symptoms:
The SFP interfaces do not come up or flap up and down repeatedly on BIG-IP 2000/4000 on boot up when both SFP interfaces are populated.

When interface flaps state changes such as those below are logged in ltm log:
info pfmand[PID]: 01660009:6: Link: 2.1 is UP
info pfmand[PID]: 01660009:6: Link: 2.1 is DOWN

Conditions:
Both SFP interfaces, 2.1 and 2.2, on BIG-IP 2000/4000 are populated.

This is typically observed after an upgrade to an affected version.

Impact:
Traffic cannot be sent/received from these interfaces.

Workaround:
None.

Fix:
The interfaces now come up successfully. Occasional link bounce may be seen on reboot.

746348-4 : On rare occasions, gtmd fails to process probe responses originating from the same system.

Component: Global Traffic Manager (DNS)

Symptoms:
On rare occasions, some resources are marked 'unavailable', with a reason of 'big3d: timed out' because gtmd fails to process some probe responses sent by the instance of big3d that is running on the same BIG-IP system.

Conditions:
The monitor response from big3d sent to the gtmd on the same device is being lost. Monitor responses sent to other gtmds are sent without issue. The conditions under which this occurs have not been identified.

Impact:
Some resources are marked 'unavailable' on the affected BIG-IP system, while the other BIG-IP systems in the sync group mark the resource as 'available'.

Workaround:
Restart gtmd on the affected BIG-IP system.

746091-8 : TMSH Vulnerability: CVE-2019-19151

Solution Article: K21711352

745465-4 : The tcpdump file does not provide the correct extension

Component: TMOS

Symptoms:
The output file from tcpdump generation is named support.tcpdump even though it is a compressed file.

Conditions:
Whenever tcpdump is generated and downloaded.

Impact:
You must rename the file with the correct file extension and then decompress it to access the .dmp files.

Workaround:
Rename the downloaded file from support.tcpdump to <filename>.tar.gz and decompress it.

Fix:
File name changed to support.tcpdump.tar.gz.

Behavior Change:
The tcpdump file has a different name and file extension - support.tcpdump.tar.gz

744407-1 : While the client has been closed, iRule function should not try to check on a closed session

Component: Access Policy Manager

Symptoms:
tmm cores. System posts a message:

access::session exists is used during CLIENT_CLOSED iRule event.

Conditions:
-- Client has closed the connection.
-- iRule function tries to check on a closed session.
-- An 'access session::exists' command is used inside the iRule event CLIENT_CLOSED.

Impact:
tmm may core. Traffic disrupted while tmm restarts.

Workaround:
Do not use the iRule command 'access session::exists' inside CLIENT_CLOSED.

Fix:
Command execution of 'access::session exists' is now prevented in the iRule event CLIENT_CLOSED.

743826-2 : Incorrect error message: "Can't find pool []: Pool was not found" even though Pool member is defined with port any(0)

Component: Application Visibility and Reporting

Symptoms:
When a pool member is defined with port any(0), calling the GetPoolMember() function, gives an incorrect error message that the pool member was not found.

Conditions:
Pool member with port any(0)

Impact:
Wrong error message printed to avrd.log

Fix:
Added a flag that indicates whether or not to print an error message to the GetPoolMember() function.

743253-2 : TSO in software re-segments L3 fragments.

Component: Local Traffic Manager

Symptoms:
FastL4 does not re-assemble fragments by default, but on a system with software-enabled TSO (sys db tm.tcpsegmentationoffload value disable), those fragments are erroneously re-segmented.

Conditions:
The behavior is encountered on BIG-IP Virtual Edition when setting sys db tm.tcpsegmentationoffload value disable, but does not cause a tmm core on Virtual Edition.

Impact:
Already-fragmented traffic is fragmented again.

Workaround:
None

743234-6 : Configuring EngineID for SNMPv3 requires restart of the SNMP and Alert daemons

Component: TMOS

Symptoms:
Configuring EngineID for SNMPv3 does not take effect until
the SNMP and Alert daemons are restarted.

Conditions:
Configure the EngineID for SNMPv3 using the tmsh command:
modify sys snmp include 'EngineType n'

Impact:
The SNMPv3 value does not take effect.

Workaround:
Restart the daemons after changing the EngineID:

restart /sys service snmpd
restart /sys service alertd

Note: The SNMP daemon should be restarted before the Alert daemon.

Fix:
The new EngineID is used after being configured, and no longer requires daemon restart.

743105-2 : BIG-IP SNAT vulnerability CVE-2021-22998

Solution Article: K31934524

742628-1 : A tmsh session initiation adds increased control plane pressure

Component: TMOS

Symptoms:
Under certain circumstances, the Traffic Management Shell (tmsh) can consume more system memory than expected.

Conditions:
-- Multiple users or remote processes connecting to the BIG-IP administrative command-line interface.

-- You are running certain versions of BIG-IP software, specifically:
   - 12.1.x versions earlier than 12.1.5.3.
   - 13.1.x versions earlier than 13.1.3.4.
   - Any 14.x version earlier than 14.1.4, except 14.1.2.6.
   - 15.0.x versions earlier than 15.0.1.2.
   - 15.1.x versions earlier than 15.1.0.4.

Impact:
Increased control plane pressure. Various delays may occur in both command-line and GUI response. Extreme instances may cause one or more processes to terminate, with potential disruptive effect. Risk of impact from this issue is increased when a large number of automated tmsh sessions are created.

Workaround:
For users with administrative privilege (who are permitted to use the 'bash' shell), the login shell can be changed to avoid invoking tmsh when it may not be needed:

tmsh modify /auth user ADMINUSERNAME shell bash

Fix:
This issue is fixed in the following releases:
-- 12.1.5.3 and later
-- 13.1.3.4 and later
-- 14.1.2.6
-- 14.1.4 and later
-- 15.0.1.2 and later
-- 15.1.0.4 and later
-- 16.0.0 and later

742549-3 : Cannot create non-ASCII entities in non-UTF ASM policy using REST

Component: Application Security Manager

Symptoms:
You cannot create non-ASCII entities (such as URLs and parameters) in a non-UTF-8 policy using REST.

Conditions:
-- The policy is configured for an encoding other than UTF-8.
-- Attempting to create non-ASCII entries using REST.

Impact:
You cannot create an entity (such as a URL or parameter) which contains non-ASCII characters using REST.

Workaround:
Use UTF-8.

740589-4 : Mcpd crash with core after 'tmsh edit /sys syslog all-properties'

Component: TMOS

Symptoms:
Syslog-ng consumes more than 95% CPU starving other processes of CPU time. This leads to eventual mcpd crash with core.

Conditions:
Configuring nonexistent local IP addresses and remote log server.

Impact:
Abnormal CPU usage. Potential eventual mcpd crash with core. Traffic disrupted while mcpd restarts.

Workaround:
To mitigate the issue, you can use either of the following:

-- Follow these two steps:
1. Remove the remote log server from the configuration.
2. Replace the nonexistent local IP addresses with self IP addresses.

-- Configure the remote destination host with a unique parameter in the configuration so that syslog does not get confused if there are multiple entries:
udp(192.0.2.1 port(512) localip(192.0.2.200) persist-name(r1));
udp(192.0.2.1 port(512) localip(192.0.2.201) persist-name(r2));
udp(192.0.2.100 port(512) localip(192.0.2.200) persist-name(r3));
udp(192.0.2.100 port(512) localip(192.0.2.201) persist-name(r4));

Fix:
Fixed circular loop due to configuration with empty (duplicate) persist-name

739618-3 : When loading AWAF or MSP license, cannot set rule to control ASM in LTM policy

Component: Application Security Manager

Symptoms:
When using AWAF or MSP license, you cannot use the BIG-IP Configuration Utility to set rule to control ASM in an LTM policy.

Conditions:
- AWAF or MSP license

Impact:
Admin cannot use the BIG-IP Configuration Utility create LTM policy that controls ASM, and must use TMSH.

Workaround:
Use TMSH to create the rule instead of GUI:
For example:
create ltm policy Drafts/test99 controls add { asm } requires add { http } rules add { rule1 { actions add { 0 { asm enable policy dummy2 }} ordinal 1 }}

Fix:
Users can now create LTM rule in the BIG-IP Configuration Utility that controls ASM if have AWAF or MSP license.

739570-4 : Unable to install EPSEC package★

Component: Access Policy Manager

Symptoms:
Installation of EPSEC package via tmsh fails with error:

Configuration error: Invalid mcpd context, folder not found (/Common/EPSEC/Images).

Conditions:
-- EPSEC package has never been installed on the BIG-IP device.
-- Running the command:
tmsh create apm epsec epsec-package <package_name>.iso local-path /shared/apm/images/<package_name>.iso

Impact:
First-time installation of EPSEC package through tmsh fails.

Workaround:
You can do a first-time installation of EPSEC with the following commands:

tmsh create sys folder /Common/EPSEC
tmsh create sys folder /Common/EPSEC/Images
tmsh install Upload/<package_name>.iso

Fix:
When EPSEC package is installed through tmsh command, the folder /Common/EPSEC/Images gets created if it does not exist.

739507-3 : Improve recovery method for BIG-IP system that has halted from a failed FIPS integrity check

Component: TMOS

Symptoms:
After FIPS 140-2 license is installed on BIG-IP FIPS-certified hardware devices, the system halts while booting upon performing the FIPS integrity check.

Console shows messages similar to:
  Starting System Logger Daemon...
  [ OK ] Started System Logger Daemon.
  [ 14.943495] System halted.

Conditions:
-- The BIG-IP device has a license that includes the FIPS 140-2 option (FIPS full-box license).
-- System element monitored by FIPS 140-2 integrity check has changed.
-- The device is rebooted.

Impact:
The device halts and cannot be used.

Workaround:
Workaround:
[1] Connect a terminal to the BIG-IP serial console port.
[2] From the console, enter the GRUB menu and boot into a partition that does not have a FIPS 140-2-enabled license, or into TMOS Maintenance.
[3] Mount config from the inactive partition (see K51222154: Mounting the filesystem of an inactive partition :: https://support.f5.com/csp/article/K51222154) that was halted, and examine the contents of /config/f5_public/fipserr, which shows the files that were changed, leading to failure of the FIPS 140-2 license-enabled partition.
[4] Restore those files to their original ones.
[5] Truncate the inactive partition's /config/f5_public/fipserr, e.g., by running:
cat /dev/null > /mnt/test/f5_public/fipserr
[6] Reboot.

If the system still halts, repeat from Step [1] above, until this no longer happens.

Fix:
If your device is running a version where ID 739507 is fixed:

[1] Connect a terminal to the BIG-IP serial console port
[2] From the serial console, enter the GRUB menu.
[3] Before the countdown expires, use the Up Arrow and Down Arrow keys to stop the countdown, and select the appropriate boot image.
[4] Press the key 'E' to start the edit options. A new GRUB menu displays.
[5] Use the Up Arrow and Down Arrow keys to navigate to the line that starts with 'linux', or the first line that starts with 'module'.
[6] Add a space, followed by NO_FIPS_INTEGRITY=1 (do not press ENTER).
[7] Press the Ctrl-X sequence or the F10 key to restart the system using the modified options.

The machine boots into the partition containing FIPS 140-2-enabled license.

[8] Examine the content of file /config/f5_public/fipserr to ascertain the cause of the FIPS module startup error.
[9] Fix the problem reported in the aforementioned error file.
[10] Run the test tool /usr/libexec/sys-eicheck.py to ensure that no fatal error is reported, such as:

Integrity Check Result: [ FAIL ]

If fatal errors persist, do not reboot (otherwise the system foes into the halt state, and the steps starting from Step [1] will need to be repeated). Instead, fix the problematic files reported. Rerun the test tool until no error is seen.

Note: You can find information on the sys-eicheck (FIPS) utility in the AskF5 Non-Diagnostic Article K00029945: Using the sys-eicheck (FIPS) utility :: https://support.f5.com/csp/article/K00029945.

[11] Truncate the file /config/f5_public/fipserr:
cat /dev/null > /config/f5_public/fipserr

739505-3 : Automatic ISO digital signature checking not required when FIPS license active★

Component: TMOS

Symptoms:
Automatic ISO digital signature checking occurs but is not required when FIPS license active.

The system logs an error message upon an attempt to install or update the BIG-IP system:
failed (Signature file not found - /shared/images/BIGIP-13.1.0.0.0.1868.iso.sig)

Conditions:
When the FIPS license is active, digital signature checking of the ISO is automatically performed. This requires that both the ISO and the digital signature (.sig) file are uploaded to the system.

Impact:
Installation does not complete if the .sig file is not present or not valid. Installation failure.

Workaround:
To validate the ISO on the BIG-IP system, follow the procedure described in K24341140: Verifying BIG-IP software images using .sig and .pem files :: https://support.f5.com/csp/article/K24341140.

Fix:
The restriction of requiring automatic signature checking of the ISO is removed. The procedure described in K24341140: Verifying BIG-IP software images using .sig and .pem files :: https://support.f5.com/csp/article/K24341140 to perform the checks on or off the BIG-IP system is still valid, but that checking is optional.

738964-4 : Instruction logger debugging enhancement

Component: Local Traffic Manager

Symptoms:
Specific platforms may experience a zip-engine lock-up for various reasons. When it happens, the symptoms follow a report pattern that declares the zip-engine requires reset. When resets persist, the instruction logger is unable to diagnose the value of the instructions sent to the zip-engine.

Conditions:
Invalid or unusual compression source data.

Impact:
Compression device goes off-line and CPU usage spikes as it takes over all compression responsibility. Lack of instruction logging makes it difficult to diagnose what occurred.

Workaround:
Disable hardware compression until issue is fixed.

Fix:
A new tcl variable, nitrox::comp_instr_logger has been added. It has four possible values: off, on, force-restart-tmm and force-reboot-host. This variable is used for diagnosing issues with the Nitrox compression engine.

738865-6 : MCPD might enter into loop during APM config validation

Component: Access Policy Manager

Symptoms:
Mcpd crashes after a config sync.

Conditions:
This can occur during configuration validation when APM is configured.

Impact:
Mcpd may take too long to validate the APM configuration and is killed by watchdog, causing a core

Workaround:
Use the Visual Policy Editor to configure access policy instead of tmsh commands.

The Visual Policy Editor does not allow policies to be created if they contain loops.

Fix:
Fixed an mcpd crash related to policy loop detection in APM.

738032-3 : BIG-IP system reuses cached session-id after SSL properties of the monitor has been changed.

Component: Local Traffic Manager

Symptoms:
The BIG-IP system maintains an SSL session cache for SSL (https) monitors. After changing the properties of an SSL monitor that might affect the operation of SSL, the BIG-IP continues to reuse an existing SSL session ID.

Conditions:
-- The BIG-IP system has cached session ID from previous SSL session.
-- SSL properties of monitor that might affect the operation of SSL are changed.
-- Monitor is using bigd.

Impact:
Sessions still use cached session ID. If session continues to succeed, session uses cached session ID till expiry.

Workaround:
-- Restart bigd.
-- Remove the monitor from the object and re-apply.
-- Use in-tmm monitors.

737692-4 : Handle x520 PF DOWN/UP sequence automatically by VE

Component: TMOS

Symptoms:
When BIG-IP VE is running on a host, there is the host interface's Physical Function (PF, the actual interface on the host device), and Virtual Function (VF, a virtual PCI device that is passed to the BIG-IP-VE). If an x520 device's PF is set down and then up, tmm does not recover traffic on that interface.

Conditions:
-- VE is using a VF from a PF.
-- The PF is set down and then up.

Impact:
VE does not process any traffic on that VF.

Workaround:
Reboot VE.

Fix:
tmm now restarts automatically when the PF comes back up after going down.

Behavior Change:
tmm now restarts automatically when the PF comes back up after going down.

737098-1 : ASM Sync does not work when the configsync IP address is an IPv6 address

Component: TMOS

Symptoms:
If the configsync IP address of the device is configured to be an IPv6 address, changes in ASM configuration do not synchronize across the cluster.

Conditions:
Devices in a Device Group have an IPv6 address set as their configsync IP address.

Impact:
ASM configuration does not synchronize across the Device Group.

Workaround:
Set the configsync IP address to be an IPv4 address and restart the asm_config_server process. To restart the asm_config_server process, run the following command:
pkill -f asm_config_server

726518-1 : Tmsh show command terminated with CTRL-C can cause TMM to crash.

Component: Local Traffic Manager

Symptoms:
TMM crash when running show ltm clientssl-proxy cached-certs virtual [name] clientssl-profile [name]

Conditions:
-- Running the command:
show ltm clientssl-proxy cached-certs virtual [name] clientssl-profile [name].
- The command is terminated by the client connection, aborting with CTRL-C.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not terminate tmsh show commands with CTRL-C.

724824-1 : Ephemeral nodes on peer devices report as unknown and unchecked after full config sync

Component: Local Traffic Manager

Symptoms:
After a Full Configuration Sync is performed in a device cluster, Ephemeral (FQDN) nodes on peers to the device initiating the Configuration Sync will report their status as Unknown with monitor status of Unchecked.

Note: The nodes are still monitored properly by the peer devices even though they are not reported as such.

Conditions:
-- Full configuration sync performed in a device cluster.
-- Ephemeral (FQDN) nodes configured.

Impact:
Monitor status on the peer devices is reported incorrectly.

Workaround:
Any of the following three options will correct reporting status on the peer devices:

-- Restart bigd

-- Cause monitoring to the FQDN nodes to fail for at least one probing interval, and then restore monitoring accessibility.

-- Disable and then re-enable the FQDN node

Each of these workarounds results in the reported status of the FQDN node on the peer reporting correctly again. The workarounds do not prevent a subsequent configuration sync from placing the FQDN nodes back into Unknown status on peers, however.

722337-2 : Always show violations in request log when post request is large

Component: Application Security Manager

Symptoms:
The system does not always show violations in request log when post request is large.

Conditions:
A large post request with many parameters is sent.

Impact:
Although the violations is handled correctly, it is not reported.

Workaround:
Disable learning mode.

The internal parameter pb_sampling_high_cpu_load can define what is seen as high CPU load above which sampling does not take place. The default is 60.

-- Using a lower value reduces the chances of sampling data.
-- Using 0 makes sampling never happen and thus this issue does not occur (this slows down automatic policy building).

722230-1 : Cannot delete FQDN template node if another FQDN node resolves to same IP address

Component: TMOS

Symptoms:
If multiple FQDN nodes and corresponding pool members are created, with FQDN names that resolve to the same (or a common) IP address, you may not be able to delete any of the affected FQDN nodes even after its corresponding FQDN pool member has been deleted.

Conditions:
This occurs under the following conditions
-- Multiple FQDN template nodes exist with FQDN names that resolve to the same (or a common) IP address.
-- FQDN pool members exist for each FQDN template node, with corresponding ephemeral pool members for each which share the same IP address.
-- One of the FQDN pool members is removed from its pool.
-- You attempt to delete the corresponding FQDN template node.

Impact:
The FQDN template node remains in the configuration and cannot be deleted, while an ephemeral node or pool member exists with an IP address corresponding to that FQDN name.

Workaround:
To work around this issue:
1. Remove all remaining conflicting FQDN pool members (with FQDN names that resolve to the shared/conflicting IP address).
2. Delete the desired FQDN node.
3. Re-create the remaining FQDN pool members to replace those removed in step 1.

720440-6 : Radius monitor marks pool members down after 6 seconds

Component: Local Traffic Manager

Symptoms:
The radius monitor marks a pool member down if it does not respond within 6 seconds, regardless of the interval or timeout settings in the monitor configuration.

Conditions:
A radius monitor is used, and the pool member takes more than 6 seconds to respond to a radius request.

Impact:
The pool member may be marked down incorrectly if the monitor interval is configured to be greater than 6 seconds.

Workaround:
There is no workaround at this time.

Fix:
The maximum length of time that the radius probe will wait for has been increased from 6 seconds to 30 seconds.

719555-3 : Interface listed as 'disable' after SFP insertion and enable

Component: TMOS

Symptoms:
If an unpopulated front panel interface is disabled, then an SFP inserted and the interface re-enabled, TMSH will continue to display the interface as 'disabled' in 'tmsh show net interface output' commands.

Conditions:
-- BIG-IP appliance or blade.
-- Unpopulated front panel interface is disabled.
-- SFP inserted and the interface re-enabled.
-- Running the command: tmsh show net interface output.

Impact:
Output of the command shows the interface is disabled even though it is enabled and fully operational.

Workaround:
This issue is cosmetic; the interface is functional so it may be used.

To correctly identify the enabled/disabled state of the interface, use the following command: tmsh list net interface

719338-1 : Concurrent management SSH connections are unlimited

Component: TMOS

Symptoms:
There is no limit to the number of users that can login concurrently onto a BIG-IP system.

Conditions:
Multiple users are logged into the BIG-IP device through SSH at the same time.

Impact:
System can potentially run out of memory.

Workaround:
Provide a way to limit the number of concurrent user SSH sessions.

Fix:
There are new db variables available for specifying SSH session limits, overall, per-user, and for a specific user.

-- Command: modify sys global-settings ssh-session-limit [enable/disable]
Specifies enable/disable of ssh session limit feature.
   + Enables the feature; feature is functional with default values.
   + Defaults: feature is not enabled for admin/root privileged user.
   + Total session limit for all users is 10 sessions.

-- Command: modify sys global-settings ssh-root-session-limit [enable/disable]
Specifies enable/disable of SSH session limit feature for root user.
   + Enables feature for admin/root privileged user.
   + Total session limit for all users is still 10 sessions.

-- Command: modify sys global-settings ssh-max-session-limit <value>
Specifies a global maximum number of SSH sessions.
   + Changes the default global setting limit of 10 to the specified value.

-- Command: modify sys global-settings ssh-max-session-limit-per-user <value>
Specifies a global maximum number of SSH sessions for each user.
   + Sets the maximum session limit per user.
   + Total sessions on the system are still enforced by the setting for ssh-max-session-limit.

-- Command: create auth user <> session-limit <value>
Specifies a user-specific SSH sessions limit.
   + Sets the maximum number of sessions for a particular user.
   + Total sessions on the system are still enforced by the setting for ssh-max-session-limit.

Behavior Change:
There are new db variables available for specifying SSH session limits, overall, per-user, and for a specific user.

-- Command: modify sys global-settings ssh-session-limit [enable/disable]
Specifies enable/disable of ssh session limit feature.
   + Enables the feature; feature is functional with default values.
   + Defaults: feature is not enabled for admin/root privileged user.
   + Total session limit for all users is 10 sessions.

-- Command: modify sys global-settings ssh-root-session-limit [enable/disable]
Specifies enable/disable of SSH session limit feature for root user.
   + Enables feature for admin/root privileged user.
   + Total session limit for all users is still 10 sessions.

-- Command: modify sys global-settings ssh-max-session-limit <value>
Specifies a global maximum number of SSH sessions.
   + Changes the default global setting limit of 10 to the specified value.

-- Command: modify sys global-settings ssh-max-session-limit-per-user <value>
Specifies a global maximum number of SSH sessions for each user.
   + Sets the maximum session limit per user.
   + Total sessions on the system are still enforced by the setting for ssh-max-session-limit.

-- Command: create auth user <> session-limit <value>
Specifies a user-specific SSH sessions limit.
   + Sets the maximum number of sessions for a particular user.
   + Total sessions on the system are still enforced by the setting for ssh-max-session-limit.

718189-9 : Unspecified IP traffic can cause low-memory conditions

Solution Article: K10751325

717276-9 : TMM Route Metrics Hardening

Solution Article: K20622530

716746-3 : Possible tmm restart when disabling single endpoint vector while attack is ongoing

Component: Advanced Firewall Manager

Symptoms:
tmm restarts.

Conditions:
-- AFM DoS single endpoint (sweep or flood) vector is configured.
-- The attack is ongoing.
-- The attack vector is being mitigated in hardware (HW).
-- The vector is manually disabled.

Impact:
tmm can crash and restart. Traffic disrupted while tmm restarts.

Workaround:
If you do not want to mitigate, set the mitigation_threshold to infinite.

Note: Do not disable the single endpoint vectors when an attack is ongoing and the vector is being mitigated in HW.

Fix:
tmm no longer restarts when disabling single endpoint vector while an attack is ongoing.

715032-1 : iRulesLX Hardening

Solution Article: K73302459

Component: Local Traffic Manager

Symptoms:
iRulesLX does not follow current best practices and should be updated to ensure layered protections.

Conditions:
-iRulesLX in use

Impact:
iRulesLX does not follow current best practices.

Workaround:
None.

Fix:
iRulesLX now follows current best practices.

714642-2 : Ephemeral pool-member state on the standby is down

Component: Local Traffic Manager

Symptoms:
On a standby BIG-IP system, an ephemeral pool-members state remains user-down after re-enabling an FQDN node on the primary system.

Conditions:
Re-enabling a forced-down FQDN node on the primary system.

Impact:
On the standby system, the ephemeral pool-members are in state: user-down, (forced-down in GUI).

Workaround:
None.

714502-3 : bigd restarts after loading a UCS for the first time

Component: Local Traffic Manager

Symptoms:
bigd restarts when loading a UCS for the first time, where the load succeeds; and no related messages are reported in /var/log/ltm; and no bigd core file is produced.

Conditions:
bigd loads a UCS file for the first time, such as after the command:
tmsh load sys ucs no-license keep-current-management-ip no-platform-check

Impact:
The UCS file is correctly reloaded, and bigd restarts with the loaded configuration. No bigd core is produced, and no related messages are found in /var/log/ltm. After restart, bigd performs all system functions as expected.

Workaround:
System runs as expected after the bigd restart, and the user need not take any action.

714372-5 : Non-standard HTTP header Keep-Alive causes RST_STREAM in Safari

Component: Local Traffic Manager

Symptoms:
If the BIG-IP system has a web-acceleration which provides a number of caching and optimization options suitable for HTTP/1.1. It uses 'Connection: Keep-Alive' header on a server side, which results in appearance of 'Keep-Alive' header in a response. Such a HTTP header was adopted by the industry but not standardized. When a web-acceleration profile is configured and provides a response, Safari clients do not accept responses with a such header and reject those with a RST_STREAM message.

Conditions:
-- BIG-IP has a virtual server with HTTP/2 profile and a web-acceleration profile.
-- A pool member responds with 'Keep-Alive' header in the following format: Keep-Alive: timeout=<number>, max=<number>.

Impact:
A response to a request is rejected, which might cause incorrect rendering of HTTP page.

Workaround:
Use an iRule to remove the Keep-Alive header:

when HTTP_RESPONSE_RELEASE {
HTTP::header remove keep-alive
}

Alternatively use an LTM Policy where this header is removed from a server's response.

714176-1 : UCS restore may fail with: Decryption of the field (privatekey) for object (9717) failed

Component: TMOS

Symptoms:
-- UCS archive restore fails
-- The Traffic Management Shell (TMSH) and/or /var/log/ltm file show following error message:
01071769:3: Decryption of the field (privatekey) for object (9717) failed. Unexpected Error: Loading configuration process failed.

Conditions:
- Restoring configuration from UCS.
- The UCS is being restored on a different BIG-IP system with a different master key.

Impact:
-- The UCS configuration is not applied.
-- The BIG-IP is not in a fully operational state.

Workaround:
If you encounter this error and dynad is not in use (dynamic debug) you can manually edit bigip_base.conf.

1. Locate the dynad config in /config/bigip_base.conf file:

For example, the dynad config will look like:
sys dynad key {
key $M$jV$VX7HMp5q346nsTYDYFPnYdJLrBPyQSCrDTJYAz4je7KXJAC38fxtDJL35KtF66bq
}

2. Modify the dynad configuration lines to:
sys dynad key {
key "test"
}

3, Save the updated bigip_base.conf file
4. Load the configuration with command: tmsh load sys config

Fix:
The log message is improved to provide the BIG-IP administrator with more specific detail that the dynad key failed to be decrypted.

713614-7 : Virtual address (/Common/10.10.10.10) shares address with floating self IP (/Common/10.10.10.10), so traffic-group is being kept at (/Common/traffic-group-local-only)

Component: TMOS

Symptoms:
Warning similar to below, referencing a non-floating self IP:
Virtual address (/Common/10.10.10.10) shares address with floating self IP (/Common/10.10.10.10), so traffic-group is being kept at (/Common/traffic-group-local-only)

Conditions:
Virtual Server is defined using the same IP address as a non-floating self IP.

Impact:
Virtual Server does not fail over with floating traffic group as expected.

706782-5 : Inefficient APM processing in large configurations.

Component: Access Policy Manager

Symptoms:
In configurations with large numbers of virtual servers or other entities, the apmd, oauth, and localdbmgr processes may consume large amounts of system resources.

Conditions:
-- Large configuration.
-- APM provisioned.
-- Multiple traffic groups exacerbate the effect.

Impact:
Heavy use of odd-numbered CPU cores may slow all control-plane operations, including user-interface response.

Workaround:
None known.

706521-2 : The audit forwarding mechanism for TACACS+ uses an unencrypted db variable to store the password

Solution Article: K21404407

Component: TMOS

Symptoms:
TACACS Shared Key is not encrypted in the DB key and is visible to admin and a read-only user.

Conditions:
Configure TACACS+ auditing forwarder.

Impact:
Exposes sensitive information.

Workaround:
None.

Fix:
The sensitive data is not exposed, and this issue is fixed.

705768-2 : The dynconfd process may core and restart with multiple DNS name servers configured

Component: Local Traffic Manager

Symptoms:
The dynconfd daemon may crash with a core and restart when processing a DNS query when there are multiple DNS name servers configured, or when the list of DNS name servers is changed.

Conditions:
This may occur rarely when FQDN nodes are configured and multiple DNS name servers are configured, including when a name server is added to or removed from the system DNS configuration while a DNS query is active.

Impact:
Resolution of FQDN names for FQDN nodes and pool members may be briefly interrupted while the dynconfd daemon restarts. This may cause a delay in propagation of DNS zone changes to the BIG-IP configuration.

Workaround:
This issue occurs rarely. There is currently no known workaround.

Fix:
The dynconfd process no longer cores and restarts with multiple DNS name servers configured.

705112-6 : DHCP server flows are not re-established after expiration

Component: Local Traffic Manager

Symptoms:
DHCP relay agent does not have server flows connecting to all active DHCP servers after a while.

Conditions:
- More than one DHCP servers configured for a DHCP virtual.
- Server flows timeout in 60 seconds

Impact:
DHCP server traffic not load balanced.

Workaround:
None.

Fix:
A new logic to re-establish server flows is introduced to ensure a relay agent will have all DHCP servers connected.

697331-2 : Some TMOS tools for querying various DBs fail when only a single TMM is running

Component: Service Provider

Symptoms:
Command returns "No route to host" error.

Conditions:
Running diadb, sipdb, genericmsgdb or lsndb when only a single TMM is running.

Impact:
Unable to query SIP, Diameter, Generic-Message and LSN information from its corresponded DB query tool.

Workaround:
N/A

Fix:
Tools for querying various DBs now work regardless of the number of TMMs.

696755-5 : HTTP/2 may truncate a response body when served from cache

Component: Local Traffic Manager

Symptoms:
BIG-IP systems provide a client-side HTTP/2 Gateway protocol implementation in conjunction with HTTP 1.x on a server side. A response can be cached on the BIG-IP system with a web acceleration profile. Sometimes a response served from cache is prematurely marked with END_STREAM flag, causing the client to ignore the rest of the response body.

Conditions:
BIG-IP system has a virtual server for which HTTP/2 and Web Acceleration profiles are configured.

Impact:
Some clients' browsers do not retry a resource, causing incorrect rendering of an HTML page.

Workaround:
Adding the following iRule causes the body to be displayed:

when HTTP_RESPONSE_RELEASE {
    set con_len [string trim [HTTP::header value Content-Length]]
    HTTP::header remove Content-Length
    HTTP::header insert Content-Length "$con_len"
}

Fix:
With provided fix, HTTP/2 end users no longer experience the problem of incorrect page rendering due to this issue.

696348-5 : "GTP::ie insert" and "GTP::ie append" do not work without "-message" option

Component: Service Provider

Symptoms:
When adding "GTP::ie insert" and "GTP::ie append" without "-message" option to iRule, there is warning message:

[The following errors were not caught before. Please correct the script in order to avoid future disruption. "unexpected end of arguments;expected argument spec:VALUE"1290 38]

Conditions:
Using "GTP::ie insert" or "GTP::ie append" command without "-message" option

Impact:
The commands still be executed during runtime but the warning message may confuse user.

Fix:
There is no warning message when using "GTP::ie insert" and "GTP::ie append" without "-message" option.

693360-2 : A virtual server status changes to yellow while still available

Solution Article: K52035247

692218-1 : Audit log messages sent from the primary blade to the secondaries should not be logged.

Component: TMOS

Symptoms:
Audit log messages sent from the primary blade to the secondaries are logged.

Conditions:
Multi-blade platform.

Impact:
Unnecessary messages in the log file.

Workaround:
None.

691499-5 : GTP::ie primitives in iRule to be certified

Component: Service Provider

Symptoms:
The following commands in iRules are created and available but not officially tested and approved:

GTP::ie set instance/value
GTP::ie insert
GTP::ie append
GTP::ie remove

Conditions:
Using the following iRule commands:

GTP::ie set instance/value
GTP::ie insert
GTP::ie append
GTP::ie remove

Impact:
Although you can use these iRule commands, their functionality has not been tested and approved.

Workaround:
None.

Fix:
GTP::ie primitives in iRule are now certified.

Behavior Change:
Certified pre-existing iRules:

-- GTP::ie set instance <ie-path> <instance>
  Assigns <instance> to the information element (IE) instance at <ie-path>.

-- GTP::ie set value <ie-path> <value>
  Assigns <value> to the IE value at <ie-path>.

-- GTP::ie insert <ie-path> <type> <instance> <value>
  Inserts a new IE of type <type> and instance <instance> with value <value> at <ie-path>

-- GTP::ie append [<ie-path>] <type> <instance> <value>
  Appends a new IE of type <type> and instance <instance> with value <value> to the end of embeded IE of grouped-IE specified by <ie-path> or to the end of message if the grouped-IE <ie-path> is absent.

-- GTP::ie remove <ie-path>
  Removes IE specified by <ie-path>.

685904-1 : Firewall Rule hit counts are not auto-updated after a Reset is done

Component: Advanced Firewall Manager

Symptoms:
When a rule is selected and the 'Reset Count' button is clicked, the command is executed but rule stats are not updated in the GUI.

Conditions:
This occurs when resetting the rule hit count stats in the GUI.

Impact:
Incorrect (stale) statistics are seen.

Workaround:
Refresh the page.

Fix:
Rule stats are now correctly updated in the UI after a 'Reset Count' is initiated.

681010-4 : 'Referer' is not masked when 'Query String' contains sensitive parameter

Solution Article: K33572148

Component: Application Security Manager

Symptoms:
While 'Query String' contains masked sensitive parameter value the 'Referer' header sensitive parameter value is exposed.

Conditions:
-- Sensitive parameter is defined in: 'Security :: Application Security : Parameters : Sensitive Parameters'.

-- 'Query String' contains the defined sensitive parameter.

Impact:
"Referer" header contains unmasked value of the sensitive parameter.

Workaround:
Enable 'Mask Value in Logs' in: 'Security :: Application Security : Headers : HTTP Headers :: referer'.

Fix:
The 'Referer' header value is masked in case of sensitive parameter in 'Query String'.

679751-2 : Authorization header can cause a connection reset

Component: Access Policy Manager

Symptoms:
APM resets connections and reports an ERR_ARG from a simple web request.

Conditions:
-- APM profile with User Identification Method as HTTP.
-- APM profile with User Identification Method as OauthToken.
-- HTTP traffic arrives with certain types of Authorization headers.

Impact:
Connections are reset and APM logs ERR_ARG, which is not helpful for understanding the cause.

Workaround:
iRule workaround:

when HTTP_REQUEST {
    if { [HTTP::header "Authorization"] contains "Bearer" && [string tolower [HTTP::header "User-Agent"]] contains "onenote" } {
        HTTP::header replace Authorization [string map {"Bearer" ""} [HTTP::header Authorization]]
    }
  }

Fix:
APM no longer resets connections and reports an ERR_ARG from a simple web request.

675911-12 : Different sections of the GUI can report incorrect CPU utilization

Solution Article: K13272442

Component: TMOS

Symptoms:
The following sections of the GUI can report incorrect or higher than expected CPU utilization:

-- The 'download history' option found in the Flash dashboard.

-- Statistics :: Performance :: Traffic Report (section introduced in version 12.1.0).

Values such as 33%, 66%, and 99% may appear in these sections despite the system being completely idle.

Conditions:
HT-Split is enabled (default for platforms that support it).

Impact:
The CPU history in the exported comma-separated values (CSV) file does not match actual CPU usage.

Workaround:
-- You can obtain CPU history through various other means. One way is to use the sar utility.

   - In 12.x and higher versions:
     sar -f /var/log/sa6/sa

   - or for older data:
     sar -f /var/log/sa6/sa.1

   - The oldest data is found compressed in /var/log/sa6 and must be gunzipped before use.

   - In 11.x:
     sar -f /var/log/sa/sa

   - or for older data
     sar -f /var/log/sa/sa.1

   - The oldest data is found compressed in /var/log/sa and must be gunzipped before use.

-- Live CPU utilization can also be obtained through the Performance Graphs, SNMP polling, iControl polling, various command-line utilities such as top, etc.

673272-2 : Search by "Signature ID is" does not return results for some signature IDs

Component: Application Security Manager

Symptoms:
Search by "Signature ID is" does not return results for some signature IDs.

Conditions:
Request associated with signature that was previously enforced and is now in staging after the attack signature update.

Impact:
You are unable to filter requests by some signature IDs.

Fix:
Fixed an issue with searching by signature ID.

648242-6 : Administrator users unable to access all partition via TMSH for AVR reports

Solution Article: K73521040

Component: Application Visibility and Reporting

Symptoms:
Using the TMSH for AVR reports can fail if it contains partition based entities, even with an administrator user (which should have permissions to all partitions).

Conditions:
Using the TMSH for querying partitioned based stats with an administrator user.

Impact:
AVR reports via TMSH will fail when using partition based entities.

Workaround:
None.

Fix:
Allowing for administrator users to get all partitions available on query.

644192-2 : Query of "MX" "any" RR of CNAME wide IP results in NXDOMAIN

Solution Article: K23022557

Component: Global Traffic Manager (DNS)

Symptoms:
Query of "MX" "any" RR of CNAME wide IP results in NXDOMAIN.

Conditions:
A CNAME wide IP and a dnx with parent zone.
For example, CNAME wide IP for www.siterequest.com and a dnx zone for siterequest.com.

Impact:
Cache resolvers will remember NXDOMAIN for the entire name. So clients talking to those caches asking for A/AAAA records may actually get NXDOMAIN responses until the negative cache expires.

Workaround:
Option 1: Create a related "www.siterequest.com" txt record in ZoneRunner
Option 2: Create a ltm virtual server iRule, similar to this:
when DNS_RESPONSE {
  if { [DNS::question name] eq "www.siterequest.com" } {
    if { [DNS::header rcode] eq "NXDOMAIN" } {
        DNS::header rcode NOERROR
        DNS::authority clear
        return
    }
  }
}

Fix:
A new DB key, 'gtm.allownxdomainoverride', has been added to allow configuring the BIG-IP DNS system to respond with a NOERROR response.

640842-5 : ASM end user using mobile might be blocked when CSRF is enabled

Component: Application Security Manager

Symptoms:
Users report their access is blocked; when you look at the error log, you see CSRF errors.

Conditions:
-- CSRF enabled on ASM.
-- ASM client is using a mobile device.

Impact:
Client is blocked.

Workaround:
None.

Fix:
Enabling access for specific mobile application.

636400 : CPB (BIG-IP->BIGIQ log node) Hardening

Solution Article: K26462555

615934-6 : Overwrite flag in various iControl key/certificate management functions is ignored and might result in errors.

Component: TMOS

Symptoms:
Overwrite flag in key/certificate management iControl functions is ignored and might result in errors.

Conditions:
If there is an existing key/certificate, and the key/certificate management iControl/SOAP functions are used to overwrite the key/certificate by setting the overwrite flag, the flag is ignored, and an error is returned.

Impact:
Key/certificate overwrite using iControl operations might fail.

Fix:
The fix honors the overwrite flag, so that the key/certificate is overwritten when the flag is set to true.

605675-6 : Sync requests can be generated faster than they can be handled

Component: TMOS

Symptoms:
Configuration changes in quick succession might generate sync change messages faster than the receiving BIG-IP system can parse them. The sending BIG-IP system's queue for its peer connection fills up, mcp fails to allocate memory, and then the system generates a core file.

Conditions:
Configuration changes in quick succession that might generate sync-change messages.

Impact:
Core file and sync operation does not complete as expected. The possibility for this occurring depends on the size and complexity of the configuration, which impacts the time required to sync, and the traffic load occurring at the time of the sync operation.

Workaround:
None.

593536-9 : Device Group with incremental ConfigSync enabled might report 'In Sync' when devices have differing configurations

Solution Article: K64445052

Component: TMOS

Symptoms:
Devices do not have matching configuration, but system reports device group as being 'In Sync'.

Conditions:
This occurs when the following conditions are met:
-- Device Service Cluster Device Group with incremental sync is enabled.
-- A ConfigSync operation occurs where a configuration transaction fails validation.
-- A subsequent (or the final) configuration transaction is successful.

Impact:
The BIG-IP system incorrectly reports that the configuration is in-sync, despite the fact that it is not in sync. You might experience various, unexpected failures or unexplained behavior or traffic impact from this.

Workaround:
Turn off incremental sync (by enabling 'Full Sync' / 'full load on sync') for affected device groups.

Once the systems are in sync, you can turn back on incremental sync, and it will work as expected.

583084-6 : iControl produces 404 error while creating records successfully

Solution Article: K15101680

Component: TMOS

Symptoms:
iControl produces an HTTP 404 - Not Found error message while creating the BIG-IP DNS topology record successfully.

Conditions:
Creating GTM topology record without using full path via iControl.

Impact:
Resulting code/information is not compatible with actual result.

For a post request, the create command and the list command are formed and executed, and the name in the curl request and the name in the list response are compared to verify whether or not it is the actual object. When a create command is executed with properties that are not fullPath (e.g., in iControl), it still creates the object with fullPath. So list returns the name with fullPath and compares it with the name that does not contain the fullPath, and the comparison fails because the names do not match.

Workaround:
Use the full path when creating BIG-IP DNS topology records using iControl.

Fix:
The system now compares both names, ignoring the partition '/Common' if the exact comparison fails.

579219-5 : Access keys missing from SessionDB after multi-blade reboot.

Component: Access Policy Manager

Symptoms:
Reboot a 4-blade vCMP guest. Now, only the master key for catalog remained. All subkeys are missing.

Conditions:
This can occur intermittently during a reboot in a multi-blade vCMP guest configured with APM.

Impact:
Some Access subkeys may be missing after the reboot.

Workaround:
Reboot the primary blade.

569859-7 : Password policy enforcement for root user when mcpd is not available

Component: TMOS

Symptoms:
When the mcpd configuration database is not available password policy is not enforced when changing passwords for the user 'root' using the command-line utility 'passwd' utility.

Conditions:
-- Advanced shell access
-- mcpd is not available.
-- Change root password with the 'passwd' utility.

Impact:
Root password may be set to a string that does not comply with the current password policy.

Workaround:
None.

Fix:
The system now enforces the password policy for root user, even when mcpd is not available.

489572-5 : Sync fails if file object is created and deleted before sync to peer BIG-IP

Solution Article: K60934489

Component: TMOS

Symptoms:
Sync fails if you create/import a file object and delete it before triggering manual sync; ltm logs contain messages similar to the following:

Standby:
-- err mcpd[7339]: 01070712:3: Caught configuration exception (0), Failed to sync files..
-- err mcpd[7339]: 01071488:3: Remote transaction for device group /Common/test to commit id 42 6079477704784246664 /Common/test failed with error 01070712:3: Caught configuration exception (0), Failed to sync files...

Active:
-- err mcpd[6319]: 0107134a:3: File object by name (/Common/filename) is missing.

Conditions:
This occurs when the following conditions are met:
-- BIG-IP systems configured for high availability (HA) are not configured to sync automatically, and incremental synchronization is enabled (these are the default settings).
-- One or more file objects are created and deleted before performing a sync from Active to Standby.

Impact:
Sync fails.

Workaround:
When you create/add a file object, make sure to sync before deleting it.

If a system is already in this state, perform a full sync and overwrite the configuration, as described in K13887: Forcing a BIG-IP device group member to initiate a ConfigSync operation :: https://support.f5.com/csp/#/article/K13887.

470346-3 : Some IPv6 client connections get RST when connecting to APM virtual

Component: Access Policy Manager

Symptoms:
IPv6 clients connecting to APM virtual server that renders some page, e.g., logon page, webtop, or message box, might get connection resets.

Conditions:
IPv6 client has the last 4 bytes of the IP address set to some special-purpose address, e.g., multicast address.

Impact:
Client connection is reset.

Workaround:
Change the last 4 bytes of the client IPv6 address to avoid the IPv4 special-address range.

Fix:
All IPv6 clients can now connect through APM virtual server, regardless of the values of the last 4 bytes of the address.

405329-3 : The imish utility cores while checking help strings for OSPF6 vertex-threshold

Component: TMOS

Symptoms:
The imish (vtysh) utility dumps core while checking help strings for the OSPF6 vertex-threshold command from OSPF mode.

Conditions:
-- Routing enabled.
-- Configuring OSPF vertex-threshold for either IPv4 or IPv6.
-- Requesting help for the OSPF6 vertex-threshold command.

Impact:
There is an imish (vtysh) crash.

Workaround:
None.

Fix:
Updated with the proper help strings for the OSPF6 vertex-threshold command.

1039145-3 : Tenant mirroring channel disconnects with peer and never reconnects after failover

Component: Local Traffic Manager

Symptoms:
`tmctl -d blade ha_stat` shows missing mirroring connections

Conditions:
This occurs with high availability (HA) pairs.

Impact:
HA mirroring does not function correctly

Workaround:
None

Fix:
Fixed high availability (HA) mirroring connections

1039069-2 : Multiple issues affecting the RESOLV::lookup iRule command following the fix to ID1007049.★

Component: Global Traffic Manager (DNS)

Symptoms:
For more information on the specific issues fixed, please refer to:

https://cdn.f5.com/product/bugtracker/ID1010697.html
https://cdn.f5.com/product/bugtracker/ID1037005.html
https://cdn.f5.com/product/bugtracker/ID1038921.html

Please note the only versions 15.1.3.1 and 16.1.0 are affected.

Conditions:
-- Running BIG-IP version 15.1.3.1 or 16.1.0
-- RESOLV::lookup iRule is used

Impact:
Multiple issues can occur with the RESOLV::lookup command, such as DNS resolutions failing or incorrect DNS responses being received.

Workaround:
None

Fix:
-

1032761 : HA mirroring may not function correctly

Component: TMOS

Symptoms:
HA mirroring may not function correctly

Conditions:
-- VELOS chassis in use
-- High availability (HA) pair is formed using BIG-IP tenants.
-- tmctl -d blade tmm/sdaglib_hash_table shows different tables on the active and the next-active.

Impact:
High availability (HA) mirroring may not function correctly

Workaround:
None

Fix:
Fixed high availability (HA) mirroring.

1032001-1 : Statemirror address can be configured on management network or clusterd restarting

Component: TMOS

Symptoms:
- Able to create statemirror address on the same network as management or cluster network.
- Validation issues when attempting to remove a management address.
- Clusterd process restarts constantly.

Conditions:
- Management/cluster address set up with IPv6 and statemirror address is configured with IPv4.

Impact:
- Unable to make configuration changes to the management or cluster address until the statemirror address is removed.
- Clusterd process restarts constantly causing the blade or cluster to report as offline.

1029357 : Performance drop during traffic test on VIPRION (B2250, C2400) platforms

Component: Local Traffic Manager

Symptoms:
Huge TPS performance drop in Compression, L4, L7, Ramcache, SSL

Conditions:
TPS performance drop observed in VIPRION (B2250, C2400) with each of the following individual profiles with various file size(transactions):

1) httpcompression profile
2) FastL4
3) FastHTTP
4) HTTP with OneConnect, Web acceleration
5) TLS1.2 AES128-SHA

Impact:
Slowness in user response due to low TPS

Workaround:
None

Fix:
Make tmm's Daglib wrapper correctly handle hsb's edag versions

1029105 : Hardware SYN cookie mode state change logs bogus virtual server address

Component: TMOS

Symptoms:
When a virtual server enters or exits hardware SYN cookie mode, a bogus IP address is logged in /var/log/ltm. For example:

Syncookie HW mode activated, server name = /Common/vs server IP = 0.0.0.3:0

Conditions:
A virtual server enters or exits hardware SYN cookie mode.

Impact:
Only the logging information is wrong, the hardware SYN cookie mode functions correctly.

Workaround:
None

Fix:
TMM now logs the correct IP address of the virtual server.

1027637 : System controller failover may cause dropped requests

Component: TMOS

Symptoms:
A system controller failover may cause dropped requests to a change in the CMP hash algorithm.

Conditions:
1. The system controller fails over
2. The CMP hash algorithm changes

Impact:
Incorrect CMP hash settings

Workaround:
Change the CMP hash to another setting and back

Fix:
Fixed dropped requests to change CMP hash algorithm after a system controller failover

1024853 : Platform Agent logs to ERROR severity on success

Component: TMOS

Symptoms:
Platform Agent logs all messages at the ERROR level during tenant key processing.

Conditions:
This occurs during normal startup of the BIG-IP tenant.

Impact:
Logs that should be logged at the NOTICE or INFO level are actually logged at the ERROR level.

Workaround:
None

Fix:
Fixed the Platform Agent log levels.

1024421-1 : At failover, ePVA flush leads to clock advancing and MPI timeout messages in TMM log

Component: TMOS

Symptoms:
TMM log shows clock advancing and MPI timeout messages:

notice slot1 MPI stream: connection to node aborted for reason: TCP RST from remote system (tcp.c:5201)
notice slot1 tmm[42900]: 01010029:5: Clock advanced by 6320 ticks

Conditions:
-- pva.standby.flush DB key set to 1 (enabled). The default is 0.
-- Processing high traffic volume for some time

Impact:
Upstream switch could receive flow response from both active and standby units and cause a traffic disturbance.

Fix:
Modified the "Pva.Standby.Flush" DB key to take two new values ("2" and "3"). This DB key defines actions that the system takes when a traffic-group goes standby.

The values of this DB key are now:

-- 0: do nothing (the default)
-- 1: evict all ePVA accelerated flows for all traffic-groups
-- 2: inform the ePVA to stop processing traffic destined for the MAC masquerade address for this traffic-group
-- 3: perform both of the above actions (evict all ePVA accelerated flows, and inform the ePVA to stop processing traffic for the MAC masquerade address)

Behavior Change:
The DB variable Pva.Standby.Flush accepts two new values ("2" and "3"). This DB key defines actions that the system takes when a traffic-group goes standby.

The values of this DB key are now:

-- 0: do nothing (the default)
-- 1: evict all ePVA accelerated flows for all traffic-groups
-- 2: inform the ePVA to stop processing traffic destined for the MAC masquerade address for this traffic-group
-- 3: perform both of the above actions (evict all ePVA accelerated flows, and inform the ePVA to stop processing traffic for the MAC masquerade address)

1022269-2 : False positive RFC compliant violation

Component: Application Security Manager

Symptoms:
False positive RFC compliant violation.

Conditions:
Authorization header with specific types.

Impact:
False positive violations.

Workaround:
Turn on an internal parameter:

/usr/share/ts/bin/add_del_internal add ignore_authorization_header_decode_failure 1

Fix:
Added tolerance to the authorization headers parser.

1020941-2 : HTTP/2 header frames decoding may fail with COMPRESSION_ERROR when frame delivered in multiple xfrags

Component: Local Traffic Manager

Symptoms:
HTTP/2 request fails with COMPRESSION_ERROR.

Conditions:
HTTP/2 header frames are received in multiple xfrags in such a way that the first 2 bytes of 'encoded' header-field 'value-length' are the last 2 bytes of the xfrag, and the remaining bytes are in the next xfrag.

Impact:
The header value length is incorrectly updated, and the HTTP/2 request fails.

Workaround:
None

Fix:
HTTP/2 now parses the request, regardless of its xfrags distribution.

1020705-1 : tmsh show analytics dos-l3 report view-by attack-id" shows "allowed-requests-per-second" instead "attack_type_name

Component: Application Visibility and Reporting

Symptoms:
Output of "tmsh show analytics dos-l3 report view-by attack-id" command has changed from version 13.x to 15.x. "Attack type" was removed from the system, so it was automatically replaced by the first metric "allowed-requests-per-second". For DOS L3 "Attack type" was replaced by "Vector Name" but it currently is not shown in the report along wit "Attack ID"

Conditions:
AFM is provisioned

Impact:
This change might cause scripts to fail if they use the name of the field.

Workaround:
1) edit /etc/avr/monpd/monp_dosl3_entities.cfg file. Change [dosl3_attack_id] section the following way: add 'vector_name' to measures list and add an additional parameter 'default_measure' as specified below :

[dosl3_attack_id]
...
measures=allowed_requests_per_sec,count,drop_per_sec,drop_count,total_per_sec,total_count,attacks_count,attack_type_name,category_name,vip_name,period,vector_name
default_measure=vector_name
...

2) edit /etc/avr/monpd/monp_dosl3_measures.cfg file. Add in the end the following section:

[vector_name]
id=vector_crc
formula=IF(count(distinct FACT.vector_crc)>1,'Aggregated',attack_vector_str)
merge_formula=IF(count(distinct vector_name)>1,'Aggregated',vector_name)
dim=AVR_DIM_DOS_VIS_ATTACKS_VECTOR
dim_id=attack_vector_crc
tmsh_display_name=vector-name
display_name=Vector
comulative=false
priority=65

3) restart the BIG-IP system: bigstart restart

After the system is up you can apply the same tmsh command: "tmsh show analytics dos-l3 report view-by attack-id"
You will get a result similar to 13.x. Note that "attack_type_name" is replaced by "vector-name"

Fix:
Workaround applied as fix.

1019481 : Unable to provision PEM on VELOS platform

Component: Policy Enforcement Manager

Symptoms:
Unable to provision PEM on VELOS platform

Conditions:
When trying to provision PEM

Impact:
PEM functionality cannot be achieved

Workaround:
Change sys db provision.enforce value to false and load sys config

Fix:
Added VELOS platform to PEM provision list

1019453-3 : Core generated for autodosd daemon when synchronization process is terminated

Component: Advanced Firewall Manager

Symptoms:
Autodosd cores on SIGSEGV.

Conditions:
-- AFM DoS vectors configured
-- This can occur during normal operation but the specific conditions that trigger it are unknown

Impact:
Autodosd is restarted, but up to 15 seconds of history may be lost.

Workaround:
None

Fix:
Fixed an autodosd crash.

1019081-3 : HTTP/2 hardening

Solution Article: K97045220

Component: Local Traffic Manager

Symptoms:
Under certain condition, the HTTP/2 profile does not follow current best practices

Conditions:
- HTTP/2 profile enabled

Impact:
The HTTP/2 profile does not follow current best practices.

Workaround:
N/A

Fix:
TMM now processes HTTP/2 traffic as expected

1018493-2 : Response code 304 from TMM Cache always closes TCP connection.

Component: Local Traffic Manager

Symptoms:
When a virtual server is configured to accelerate HTTP traffic, it caches responses with 200 and 304 response codes. Serving a response with "304 Not Modified" code, TMM may close a connection to a client.

Conditions:
-- A virtual server has a web-acceleration profile (without a web application for versions prior 16.0.0).
-- A response with code 304, stored in TMM cache, is served to a request.

Impact:
A client needs to open a new TCP connection every time when a response with "304 Not Modified" code is served.

Fix:
TMM correctly serves a response with "304 Not Modified" code, allowing to correctly handle TCP connection status.

1018145-1 : Firewall Manager user role is not allowed to configure/view protocol inspection profiles

Component: Protocol Inspection

Symptoms:
A user account with the "firewall-manager" role that is assigned permissions only to custom partitions will not be able to configure protocol inspection profiles.

Conditions:
-- A user account is created with the role firewall-manager.
-- A custom partition is created.
-- The newly created user is given access to the newly created partition.

Impact:
Any user account without access to "/Common" partition is not allowed to configure protocol inspection profiles.

Workaround:
- If the user account is provided access to "/Common" partition as well, the user should be able to configure protocol-inspection profiles in the newly created custom partitions.

Fix:
The permissions are granted for any non-admin user to configure protocol inspection profiles in a custom partition as long as they have access to "/Common" partition as well.

1017973-2 : BIND Vulnerability CVE-2021-25215

Solution Article: K96223611

1017965-2 : BIND Vulnerability CVE-2021-25214

Solution Article: K11426315

1017645-2 : False positive HTTP compliance violation

Component: Application Security Manager

Symptoms:
False-positive HTTP compliance violation.

Conditions:
Authorization header with bearer token and/or some other authorization headers types.

Impact:
False-positive traffic blocking.

Workaround:
Turn on an internal parameter by entering the following command from the BIG-IP CLI:

/usr/share/ts/bin/add_del_internal add ignore_authorization_header_decode_failure 1

Then restart ASM for this to take effect:

bigstart restart asm

Fix:
The RFC compliance violation is no longer issued for unknown types of authorization headers.

1016633 : iprep.protocol with auto-detect fails when DNS takes time to resolve

Component: Advanced Firewall Manager

Symptoms:
On some hardware platforms, after a reboot, DNS takes a significant amount of time to come up.

Conditions:
This is encountered on either a fresh installation, or upon a reboot of a BIG-IP system.

Impact:
DNS takes time to come up (after a reboot) and till then DNS resolution fails. During this, iprepd with auto-detect fails

Workaround:
None

Fix:
Fixed connectivity issues in case of auto-detect protocol mode.

1016309-1 : When two policies with the same properties are configured with geo property, the geo for the second policy is ignored.

Component: Advanced Firewall Manager

Symptoms:
If two policies are configured with rule lists of same type of properties (1 allow and 1 deny) with the geo property used, the geo settings of the first rule will be used in the second rule.

Conditions:
-- Two policies having the same type of rule lists (1 allow rule and 1 deny rule)
-- The same geo is configured in a rule in each of the rule lists.
-- One rule is configured to allow, one is configured to deny

Impact:
Connection requests for the second virtual server that uses the second policy will use the geo settings from the first policy.

Workaround:
None

Fix:
Connection request for second virtual server will be dropped and allowed as configured in the policy that is attached.

1016113-3 : HTTP response-chunking 'sustain' profile option may not rechunk responses when also using a web acceleration profile.

Component: Local Traffic Manager

Symptoms:
Configurations containing HTTP response-chunking 'sustain' and a Web Acceleration profile do not rechunk payload regardless of whether the web server responds with a chunked response.

Conditions:
-- Incoming response payload to the BIG-IP system is chunked.
-- HTTP profile is configured with response-chunking 'sustain'.
-- Web Acceleration profile also configured on the same virtual server.

Impact:
The BIG-IP response is not chunked, regardless of whether the associated web server responds with a chunked payload when the Web Acceleration is utilized.

Workaround:
For a chunked response to be delivered to the client, apply the iRule command 'HTTP::rechunk' to responses when a Web Acceleration profile is used.

Fix:
The BIG-IP response is chunked appropriately when a Web Acceleration profile is used.

1015381-5 : Windows Edge Client does not follow best practices while installing

Solution Article: K08503505

1014609 : Tunnel_src_ip support for dslite event log for type field list

Component: Advanced Firewall Manager

Symptoms:
When storage-format is set to None the dslite_dst_ip and dslite_src_ip fields are displayed; however, the field list only displays dslite_dst_ip and you are unable to configure dslite_src_ip.

Conditions:
-- AFM configured
-- You are configuring a logging profile and are choosing fields from the field list

Impact:
The dslite_src_ip field cannot be selected in the logging profile when choosing fields from the field list.

Workaround:
Do not choose fields from the field list and dslite_src_ip will be logged.

Fix:
For NAPT mode dslite tunnel_src_ip is now supported for field list for all 6 event type (inbound start/stop, outbound start/stop, error and quota exceeded).

1014433 : Time stamp format is not the same for all LTM logs

Component: TMOS

Symptoms:
After the device reboots, the LTM logs time stamp provided for "boot_marker" and "Shutdown cleanly" are of two different formats.

Conditions:
This can be found in /var/log/ltm following a reboot.

Impact:
The time stamps are not the same.

Fix:
The boot marker log entry now uses a consistent time stamp.

Behavior Change:
The boot marker log entry now uses a consistent time stamp.

1013649-4 : Leftover files in /var/run/key_mgmt after key export

Component: TMOS

Symptoms:
Files accumulate in /var/run/key_mgmt
qkview grows too large to be processed by iHealth

Conditions:
iControl SOAP used for key export

Impact:
Thousands of files can eventually accumulate in /var/run/key_mgmt, impacting ability to process qkviews
it takes long time to process.

Workaround:
Delete files in /var/run/key_mgmt manually

Fix:
Earlier f5km_shutdown is called with DONT_DELETE argument, now it is called with DELETE_ENTIRE_KEYMGMT_DIR so it will clean up temp files in /var/run/key_mgmt properly.

1013569 : Hardening of iApps processing

Component: Guided Configuration

Symptoms:
Under certain conditions, iApps do not follow current best practices.

Conditions:
- iApps in use

Impact:
iApps do not follow current best practices.

Workaround:
N/A

Fix:
iApps now follow current best practices.

1012521-2 : BIG-IP UI file permissions

Component: Advanced Firewall Manager

Symptoms:
Some GUI files have incorrect permission settings.

Conditions:
Files installed by the security-ui rpm.

Impact:
File permissions are incorrect.

Fix:
Installation script updated to set permissions to remove write privileges for the Group and User level

1012413-3 : Tmm performance impact for DDoS vector on virtual server when hardware mitigation is enabled

Component: Advanced Firewall Manager

Symptoms:
When a DoS profile is attached to a virtual server, the mitigation limit is set to the system limit and not the HSB limit. This causes more packets to be handled by software. Depending on attack size, it could pass up to 200% of the set mitigation limit. This can impact tmm performance.

Conditions:
-- Dos profile is configured on virtual server.
-- Hardware platform that has HSB
-- Hardware mitigation is enabled

Impact:
Tmm performance may be degraded.

Workaround:
None

Fix:
The HSB limit is set to (vector configured mitigation limit) / (number of hsbs on BIG-IP)

1010393-4 : Unable to relax AS-path attribute in multi-path selection

Component: TMOS

Symptoms:
In BIG-IP versions where ID933461 (https://cdn.f5.com/product/bugtracker/ID933461.html) is fixed, you are unable to relax AS-path attribute in multi-path selections.

Conditions:
BGP multi-path routes with different AS_PATH attributes.

Impact:
Some routes might not be considered as multipath. ECMP routes are not installed properly.

Workaround:
Consider using 'bgp bestpath as-path ignore' or alter the AS_PATH attribute upstream.

1009773 : AWS deployments of TMM may crash while processing traffic

Solution Article: K01153535

1008837-2 : Control plane is sluggish when mcpd processes a query for virtual server and address statistics

Component: TMOS

Symptoms:
When there are thousands of rows in the virtual_server_stat table and mcpd receives a query for for all virtual server or virtual address statistics, mcpd can take a long time to process the request.

There might be thousands of rows if thousands of virtual servers server are configured.

There could also be thousands of rows if there are virtual servers configured for source or destination address lists, where those lists contain tens or hundreds of addresses.

Conditions:
-- Thousands of virtual_server_stat rows.
-- mcpd processes a query_stats request for the virtual_server_stat table.

Impact:
When mcpd is processing a query for virtual server statistics:

-- TMSH and GUI access is very slow or non-responsive.
-- SNMP requests timeout.
-- mcpd CPU usage is high.

Workaround:
None

1008561-1 : In very rare condition, BIG-IP may crash when SIP ALG is deployed

Component: Service Provider

Symptoms:
Under certain conditions, BIG-IP may crashes while processing SIP ALG traffic

Conditions:
- SIP ALG is deployed
- Inbound call received

Impact:
TMM crash leading to a failover event. Traffic is interrupted during BIG-IP restart

Workaround:
N/A

Fix:
BIG-IP now processes SIP ALG traffic as expected

1007821-1 : SIP message routing may cause tmm crash

Component: Service Provider

Symptoms:
In very rare circumstances, tmm may core while performing SIP message routing.

Conditions:
This can occur while passing traffic when SIP message routing is enabled.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

Fix:
SIP message routing no longer results in a core due to internal memory errors in message parsing.

1007049-3 : TMM may crash while processing DNS traffic

Solution Article: K30523121

1006345-1 : Static mac entry on trunk is not programmed on CPU-only blades

Component: TMOS

Symptoms:
More traffic egressing out from primary link of lacp when there is DLFs (destination lookup failures) since static mac is not present on CPU-only blades

Conditions:
Static mac configured on trunk on all platforms except i4000, i850/i2000, 2000/2200, 4000/4200,4100

Impact:
DLFs (destination lookup failures) will cause the first interface in the trunk to egress all DLF'd traffic

1005489-2 : iRules with persist command might result in tmm crash.

Component: Local Traffic Manager

Symptoms:
BIG-IP systems may experience a tmm crash if iRules containing 'persist' command are being used.

Conditions:
-- BIG-IP systems with multiple TMMs
-- Virtual server with HTTP/HTTP/2 profile attached.
-- Virtual server has iRules containing the 'persist add' command.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

1005105-1 : Requests are missing on traffic event logging

Component: Application Security Manager

Symptoms:
Some traffic requests are missing in Security :: Event Logs.

Conditions:
-- Local logging enabled
-- Two or more virtual servers passing heavy traffic

Impact:
High CPU load prevents the Policy Builder from analyzing and sending all traffic requests to the request log.

Workaround:
None

Fix:
The Policy Builder now attempts to send traffic requests to the request log, even when learning analysis is limited due to high CPU load.

1004833-2 : NIST SP800-90B compliance

Component: TMOS

Symptoms:
Common Criteria and FIPS 140-2 certifications require compliance with NIST SP800-90B; this completes that compliance.

Conditions:
Customers requiring Common Criteria and/or FIPS 140-2 compliance.

Impact:
Customers running without this fix on a release targeted for certification (BIG-IP 14.1.4.2 or BIG-IP 15.1.2.1) will not be running a Common Criteria and/or FIPS 140-2 certified configuration.

Workaround:
None

Fix:
Apply this fix to ensure that the system is compliant with NIST SP800-90B.

1004633-3 : Performance degradation on KVM and VMware platforms.

Component: Performance

Symptoms:
CPU utilization is increased.

Conditions:
-- KVM or VMware platforms are deployed.
-- FastHTTP or L7 HTTP virtual servers are configured.

Impact:
A 3-13% increase in CPU utilization which may degrade throughput with higher volumes of traffic.

1004537-1 : Traffic Learning: Accept actions for multiple suggestions not localized

Component: Application Security Manager

Symptoms:
When you open the accept suggestions actions list, the actions are not localized. Labels are shown instead of text, for example asm.button.Accept instead of Accept.

Conditions:
This occurs after selecting several suggestions and opening the Accept suggestions actions list.

Impact:
Actions not localized.

Workaround:
None

Fix:
Fixed localization for Accept suggestions actions list.

1004517-2 : BIG-IP tenants on VELOS cannot install EHFs

Component: TMOS

Symptoms:
BIG-IP tenants created on VELOS using v14.1.4 software earlier than v14.1.4.3 cannot accept engineering hotfixes (EHF).

Conditions:
Installing EHF updates to BIG-IP tenants on VELOS running BIG-IP v14.1.4 software earlier than v14.1.4.3.

Impact:
EHF installation fails.

Workaround:
None

Fix:
BIG-IP tenants on VELOS can now install EHFs.

1004417-3 : Provisioning error message during boot up★

Component: TMOS

Symptoms:
Error message in /var/log/ltm:
Could not retrieve DB variable for (provision.datastor)

Conditions:
Upgrade BIG-IP software from version 12.x to version 13.x or higher.

Impact:
The error message is logged after the first boot after the upgrade. There is no impact on functionality and the error message can be ignored.

Workaround:
None

1003557-3 : Not following best practices in Guided Configuration Bundle Install worker

Solution Article: K74151369

1003105-3 : iControl Hardening

Solution Article: K74151369

1002761-1 : SCTP client's INIT chunks rejected repeatedly with ABORT during re-establishment of network link after failure

Component: TMOS

Symptoms:
A SCTP client's INIT chunks are rejected repeatedly.

Conditions:
-- Client-side SCTP association times out and is terminated with ABORT.
-- The client attempts to INIT the association again using the same source port.

Impact:
Client cannot reconnect to BIG-IP systems, even after the network failures are resolved.

Workaround:
Fail over and restart tmm on the affected device.

1002561-5 : TMM vulnerability CVE-2021-23007

Solution Article: K37451543

1002109-3 : Xen binaries do not follow security best practices

Component: TMOS

Symptoms:
The following xen* binaries have multiple violations of security best practices.
usr/bin/xenstore
/usr/bin/xenstore-exists
/usr/bin/xenstore-ls
/usr/bin/xenstore-read
/usr/bin/xenstore-rm
/usr/bin/xenstore-watch
/usr/bin/xenstore-chmod
/usr/bin/xenstore-list
/usr/bin/xenstore-write

Conditions:
The violations can be seen on BIG-IP by running following script.
https://github.com/slimm609/checksec.sh

Impact:
The issue lead to violation of security best practices.

Fix:
Fixed an issue with certain xen* binaries.

1001509 : Client going through to BIG-IP SSL forward proxy might not be able to trust forged certificates

Solution Article: K11162395

Component: Local Traffic Manager

Symptoms:
-- A client system or browser does not trust forged certificates, and reports a cert verification warning: ERR_CERT_AUTHORITY_INVALID.
-- The forged certificate received by the client has the same values set for AKI and SKI certificate extensions.

Conditions:
Client SSL profile in SSL forward proxy is configured with the same certificate for Cert Key Chain and CA Cert Key Chain, and that certificate has an SKI extension.

Impact:
Client does not trust forged certificates and can not connect to the backend.

Workaround:
Modify the Cert Key Chain on the Client SSL profile to have a different certificate from CA Cert Key Chain.

You can find details in K11162395: A client browser may not trust the certificate issued by the BIG-IP SSL forward proxy :: https://support.f5.com/csp/article/K11162395

Fix:
Certificate forged by SSL forward proxy does not contain AKI and SKI extensions, so this issue no longer occurs.

1001041-3 : Reset cause 'Illegal argument'

Component: Access Policy Manager

Symptoms:
Client connections get aborted usually after the full transfer of the HTTP Post request.

If logging of reset reason is enabled using:
tmsh modify sys db tm.rstcause.log value enable

LTM logs report the reset reason as 'Illegal Argument'.

Conditions:
Any transaction that takes a long time to complete can result in this issue. This issue can be triggered if there is a large POST request or if the backend server is slow in responding to the requests.

Impact:
Clients cannot post large files to backend servers with APM PingAccess support.

Workaround:
None

Fix:
The timeout is now properly handled for large post requests, so that no reset occurs.

1000973-3 : Unanticipated restart of TMM due to heartbeat failure

Component: TMOS

Symptoms:
A tmm thread might stall while yielding the CPU, and trigger a failsafe restart of the tmm process. A core file might be generated without any message logged in /var/log/*.

High resolution timers (hrtimer) may be lost.

Conditions:
The conditions under which this occurs are unknown.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

Fix:
Fixed an unanticipated restart of TMM due to heartbeat failure triggered by the kernel.

1000741-3 : Fixing issue with input normalization

Component: Application Security Manager

Symptoms:
Under certain conditions, ASM does not follow current best practices.

Conditions:
- ASM provisioned

Impact:
Attack detection is not triggered as expected

Workaround:
N/A

Fix:
Attack detection is now triggered as expected

1000405-2 : VLAN/Tunnels not listed when creating a new rule via GUI

Component: Advanced Firewall Manager

Symptoms:
Available tunnels are not displayed on the AFM rules-creation page in the GUI.

Conditions:
-- Navigate to the firewall network rules creation page in the GUI.
-- In the rules source section, under the VLAN/Tunnel dropdown, select the 'specify' option.

Impact:
Available tunnels do not display in the select box. Cannot specify tunnels for firewall rules from the GUI.

Workaround:
Use tmsh to specify tunnels for firewall rules.

Fix:
The available tunnels now display in the VLAN/Tunnels dropdown.

Known Issues in BIG-IP v15.1.x

TMOS Issues

ID Number	Severity	Solution Article(s)	Description
913713-2	1-Blocking		Rebooting a blade causes MCPd to core as it rejoins the cluster
858173-3	1-Blocking		SSL Orchestrator RPM not installed on HA-peer after upgrade from 14.1.2.1★
1039049	1-Blocking		Installing EHF on particular platforms fails with error "RPM transaction failure"
998945-2	2-Critical		Load sys config is failing with OOM in MCPD processing
997793-2	2-Critical	K34172543	Error log: Failed to reset strict operations; disconnecting from mcpd★
997313-3	2-Critical		Unable to create APM policies in a sync-only folder★
992097-2	2-Critical		Incorrect hostname is seen in logging files
990853-3	2-Critical		Mcpd restarts on Secondary VIPRION blades upon modifying a vCMP guest's management IP address or gateway.
989517-2	2-Critical		Acceleration section of virtual server page not available in DHD
979045-3	2-Critical		The tpm-status-check service shows System Integrity Status: Invalid when Engineering Hotfix installed on certain platforms
976669-2	2-Critical		FIPS Integrity check fails for other secondary blades after rebooting/replacing secondary blade
967573-2	2-Critical		Qkview generation from Configuration Utility fails
957897-1	2-Critical		Unable to modify gateway-ICMP monitor fields in the GUI
950673-3	2-Critical		Hardware Syncookie mode not cleared when deleting/changing virtual server config.
950201	2-Critical		Tmm core on GCP
943109-2	2-Critical		Mcpd crash when bulk deleting Bot Defense profiles
942549-2	2-Critical		Dataplane INOPERABLE - Only 7 HSBs found. Expected 8
940225-2	2-Critical		Not able to add more than 6 NICs on VE running in Azure
937481-2	2-Critical		Tomcat restarts with error java.lang.OutOfMemoryError
929133-2	2-Critical		TMM continually restarts with errors 'invalid index from net device' and 'device_init failed'
910325	2-Critical		DDoS Vector - TCP BAD ACK is not hardware-accelerated
907645-1	2-Critical		IPsec SAs may not be mirrored to HA standby
897509-1	2-Critical		IPsec SAs are missing on HA standby, leading to packet drops after failover
894133-1	2-Critical		After ISO upgrade the SSL Orchestrator guided configuration user interface is not available★
888765-1	2-Critical		After upgrading from 13.1.0 to 15.1.0.1 CGNAT is deprovisioned and tmm is restarted by reloaded config from text files★
882757-1	2-Critical		sflow_agent crash SIGABRT in the cleanup flow
865653-3	2-Critical		Wrong FDB table entries with same MAC and wrong VLAN combination
865329-1	2-Critical		WCCP crashes on "ServiceGroup size exceeded" exception
858877-3	2-Critical		SSL Orchestrator config sync issues between HA-pair devices
856713-3	2-Critical		IPsec crash during rekey
842669-3	2-Critical		Syslog-ng / systemd-journald cannot handle logs with embedded newlines, write trailing content to /var/log/user.log
840769-2	2-Critical		Having more than one IKE-Peer version value results in upgrade failure★
831821-1	2-Critical		Corrupted DAG packets causes bcm56xxd core on VCMP host
808277-6	2-Critical		Root's crontab file may become empty
780437-6	2-Critical		Upon rebooting a VIPRION chassis provisioned as a vCMP host, some vCMP guests can return online with no configuration.
777389-5	2-Critical		In rare occurrences related to PostgreSQL monitor, the mcpd process restarts
776117-2	2-Critical		BIG-IP Virtual Edition virtio driver incompatible with Q35 machine type
756830-5	2-Critical		BIG-IP may fail source translation for connections when connection mirroring is enabled on a virtual server that also has source port set to 'preserve strict'
750588-3	2-Critical		While loading large configurations on BIG-IP systems, some daemons may core intermittently.
749332-2	2-Critical		Client-SSL Object's description can be updated using CLI and with REST PATCH operation
742764-2	2-Critical		The raccoon daemon is spawned more then once on startup, one fails and cores.
742419-4	2-Critical		BIG-IP NIC teaming of SR-IOV interfaces does not work under VMware ESXi
718573-3	2-Critical		Internal SessionDB invalid state
671545-2	2-Critical		MCPD core while booting up device with error "Unexpected exception caught"
382363-3	2-Critical	K30588577	min-up-members and using gateway-failsafe-device on the same pool.
1041865-3	2-Critical		Correctable machine check errors [mce] should be suppressed
1039609-3	2-Critical		Unable to poll Dynamic routing protocols SNMP OID's on non-default route domain
1035121-3	2-Critical		Configsync syncs the node's monitor status
1031357-1	2-Critical		After reboot of standby and terminating peer, some IPsec traffic-selectors are still online
1029949-1	2-Critical		IPsec traffic selector state may show incorrect state on high availability (HA) standby device
1027961-1	2-Critical		Changes to an admin user's account properties may result in MCPD crash and failover
1024269-2	2-Critical		Forcing a file system check on the next system reboot does not check all filesystems.
1023829	2-Critical		Security->Policies in Virtual Server web page spins mcpd 100%, which later cores
1020049	2-Critical		iControl REST 401 error caused by pam-authenticator failure
1012493-4	2-Critical		Systemauth.primaryadminuser set to anything but 'admin' causes internal error for mcp-state check
1011801	2-Critical		L2 behavior becomes inconsistent while scaling address space
1004929-2	2-Critical		During config sync operation, MCPD restarts on secondary blade logging 01020012:3: A unsigned four-byte integer message item is invalid.
999125-2	3-Major		After changing management IP addresses, devices can be stuck indefinitely in improper Active/Active or Standby/Standby states.
999021-3	3-Major		IPsec IKEv1 tunnels fail after a config sync from Standby to Active
998957-3	3-Major		Mcpd consumes excessive CPU while collecting stats.
998649-3	3-Major		Log hostname should be consistent when it contains ' . '
997561-3	3-Major		TMM CPU imbalance with GRE/TB and GRE/MPLS traffic
997541-3	3-Major		Round-robin Disaggregator for hardware and software
996001-1	3-Major		AVR Inspection Dashboard 'Last Month' does not show all data points
995605-1	3-Major		PVA accelerated traffic does not update route domain stats
995097-3	3-Major		Certain management-dhcp supersede options fail to restore correctly when the configuration is reloaded from a file.
994365-3	3-Major		Inconsistency in tmsh 'object mode' for some configurations
994361-3	3-Major		Updatecheck script hangs/Multiple updatecheck processes
994305-1	3-Major		The version of open-vm-tools included with BIG-IP Virtual Edition is 10.1.5
992813-2	3-Major		The list of dhcp-options known to mcpd is outdated, leading to the inability to instantiate certain management-dhcp configurations.
992449-3	3-Major		The vCMP host does not report the correct number of guest CPUs on the guest page of the GUI
992253-2	3-Major		Cannot specify IPv6 management IP addresses using GUI
992053-1	3-Major		Pva_stats for server side connections do not update for redirected flows
988745-3	3-Major		On reboot, 'could not find platform object' errors may be seen in /var/log/ltm
987301-1	3-Major		Software install on vCMP guest via block-device may fail with error 'reason unknown'
987081-3	3-Major		Alarm LED remains active on Secondary blades even after LCD alerts are cleared
984585-1	3-Major		IP Reputation option not shown in GUI.
981485-4	3-Major		Neurond enters a restart loop after FPGA update.
977953-2	3-Major		Show running config interface CLI could not fetch the interface info and crashes the imi
977113-5	3-Major		Unable to configure dependency for GTM virtual server if pool member dependency exists
976013-4	3-Major		If bcm56xxd starts while an interface is disabled, the interface cannot be enabled afterwards
974225-2	3-Major		Link Status traps are not issued on VE based BIG-IP systems
972785-6	3-Major		Unable to create virtual server with a non-zero Route Domain for custom partition via iControl SOAP
971009-1	3-Major		SNMPv3 alerts are not sent after upgrade to post 15.1.0.3 firmware
969737-1	3-Major		Snmp requests not answered if V2 traps are configured
969329-2	3-Major		Dashboard: Chart title/legend 'Control Plane' needs to be modified within dashboard of BIG-IP
966949-2	3-Major		Multiple FQDN ephemeral nodes not deleted upon deleting FQDN template node
965941-2	3-Major		Creating a net packet filter in the GUI does not work for ICMP for IPv6
965205-2	3-Major		BIG-IP dashboard downloads unused widgets
964125-2	3-Major		Mcpd cores while processing a query for node statistics when there are thousands of FQDN nodes and pool members.
963541-2	3-Major		Net-snmp5.8 crash
960029-2	3-Major		Viewing properties for IPv6 pool members in the Statistics page in the GUI returns an error
959241-2	3-Major		Fix for ID871561 might not work as expected on the VCMP host
959057-3	3-Major		Unable to create additional login tokens for the default admin user account
958833-1	3-Major		After mgmt ip change via GUI, brower is not redirected to new address
958601-2	3-Major		In the GUI, searching for virtual server addresses does not match address lists
958093-3	3-Major		IPv6 routes missing after BGP graceful restart
957993-2	3-Major		Unable to set a port list in the GUI for an IPv6 address for a virtual server
957637-2	3-Major		Pfmand crash during bootup
956625-2	3-Major		Port and port-list type are both stored in a traffic-matching-criteria object
956109-2	3-Major		Modifying a traffic-matching-criteria with a port-list during a full sync may result in an incorrect configuration on the sync target
955953-2	3-Major		iRule command 'table' fails to resume when used with Diameter 'irule_scope_msg'
955897-2	3-Major		Configuration may fail to load with named virtual-address for 0.0.0.0 in a non-zero route domain★
953477-3	3-Major		Syncookie HW mode not cleared when modifying VLAN config.
950153-2	3-Major		LDAP remote authentication fails when empty attribute is returned
948601-3	3-Major		File object checksum attribute is not updated when an external data-group file or external monitor file is edited from GU
948101-1	3-Major		Pair of phase 2 SAs missing after reboot of standby BIG-IP device
947529-2	3-Major		Security tab in virtual server menu renders slowly
946121-2	3-Major		SNMP user added with password less than 8 characters through tmsh is allowed but fails during snmpwalk.
945413-3	3-Major		Loop between keymgmtd and mcpd causes BIG-IP to be out of sync or in constant automatic config sync
943793-2	3-Major		Neurond continuously restarting
943641-1	3-Major		IKEv1 IPsec in interface-mode may fail to establish after ike-peer reconfiguration
943577-2	3-Major		Full sync failure for traffic-matching-criteria with port list under certain conditions
943473-2	3-Major		LDAP monitor's test functionality has an incorrect and non-modifiable IP address field in GUI
943045-2	3-Major		Inconsistency in node object name and node IPv6 address when IPv6 pool-member is created without providing node object name.
941381-3	3-Major		MCP restarts when deleting an application service with a traffic-matching-criteria
940885-2	3-Major		Add embedded SR-IOV support for Mellanox CX5 Ex adapter
940177-1	3-Major		Certificate instances tab shows incorrect number of instances in certain conditions
940161	3-Major		iCall throws error: foreign key index (name_FK) do not point at an item that exists in the database
939249-3	3-Major		iSeries LCD changes to secure mode after multiple reboots
938145-1	3-Major		DAG redirects packets to non-existent tmm
937601-2	3-Major		The ip-tos-to-client setting does not affect traffic to the server.
936093-2	3-Major		Non-empty fipserr files loaded from a UCS archive can cause a FIPS BIG-IP platform to remain offline
935485-2	3-Major		BWC: flows might stall when using dynamic BWC policy
935177-2	3-Major		IPsec: Changing MTU or PMTU settings on interface mode tunnel cores tmm
933329-2	3-Major		The process plane statistics do not accurately label some processes
931629-2	3-Major		External trunk fdb entries might end up with internal MAC addresses.
930825-4	3-Major		System should reboot (rather than restart services) when it sees a large number of HSB XLMAC errors
930633-3	3-Major		Delay in using new route updates by existing connections on BIG-IP.
928389-2	3-Major		GUI becomes inaccessible after importing certificate under import type 'certificate'
928353-2	3-Major		Error logged installing Engineering Hotfix: Argument isn't numeric★
928161-1	3-Major		Local password policy not enforced when auth source is set to a remote type.
927025-3	3-Major		Sod restarts continuously
925797-2	3-Major		Full config sync fails and mcpd memory usage is very high on the receiving device with thousands of FQDN pools members
924297-2	3-Major		Ltm policy MCP objects are not being synced over to the peer device
923745-3	3-Major		Ctrl-Alt-Del reboots the system
922885-3	3-Major	K27872027	BIG-IP Virtual Edition does not pass traffic on ESXi 6.5
922613-2	3-Major		Tunnels using autolasthop might drop traffic with ICMP route unreachable
922185-1	3-Major		LDAP referrals not supported for 'cert-ldap system-auth'★
922153-2	3-Major		Tcpdump is failing on tmm 0.x interfaces
922069	3-Major		Increase iApp block configuration processor timeout
921149-1	3-Major		After applying static bandwidth controller on a virtual server, any changes to the virtual server disassociates the BWC policy
921121-4	3-Major		Tmm crash with iRule and a PEM Policy with BWC Enabled
920893-1	3-Major		GUI banner for configuration issues frozen after repeated forced VIPRION blade failover
920761-2	3-Major		Changing a virtual server type in the GUI may change some options; changing back to the original type does not restore original values
920517-2	3-Major		Rate Shaping Rate Class 'Queue Method' and 'Drop Policy' defaults are incorrect in the GUI
919401-2	3-Major		Disallow adding Request Adapt Profiles and Response Adapt Profiles to virtual servers in TMSH when ICAP is not licensed
919317-5	3-Major		NSM consumes 100% CPU processing nexthops for recursive ECMP routes
919185-2	3-Major		Request adapt and response adapt profile options should not be available in the GUI when ICAP is not licensed
918409-2	3-Major		BIG-IP i15600 / i15800 does not monitor all tmm processes for heartbeat failures
915829-2	3-Major		Particular Users unable to login with LDAP Authentication Provider
915557-2	3-Major		The pool statistics GUI page fails (General database error retrieving information.) when filtering on pool status.
915493-4	3-Major		imish command hangs when ospfd is enabled
913573-2	3-Major		Unable to complete REST API PUT request for 'tm/ltm/data-group/internal' endpoint.
912253-1	3-Major		Non-admin users cannot run show running-config or list sys
909505-3	3-Major		Creating LTM data group external object fails.
909485-3	3-Major		Deleting LTM data-group external object incorrectly reports 200 when object fails to delete
909197-3	3-Major		The mcpd process may become unresponsive
908753-3	3-Major		Password memory not effective even when password policy is configured
906505-2	3-Major		Display of LCD System Menu cannot be configured via GUI on iSeries platforms
905749-1	3-Major		imish crash while checking for CLI help string in BGP mode
904401-1	3-Major		Guestagentd core
903265-3	3-Major		Single user mode faced sudden reboot
901989-2	3-Major		Boot_marker writes to /var/log/btmp
901669-4	3-Major		Error status in 'tmsh show cm failover-status', and stale data in some tmstat tables, after management IP address change.
901529	3-Major		AFM Debug Reroute feature not supported
900933-1	3-Major		IPsec interoperability problem with ECP PFS
900485-2	3-Major		Syslog-ng 'program' filter does not work
899933-2	3-Major		Listing property groups in TMSH without specifying properties lists the entire object
899085-6	3-Major		Configuration changes made by Certificate Manager role do not trigger saving config
898577-2	3-Major		Executing a command in "mgmt tm" using iControl REST results in tmsh error
898389-1	3-Major		Traffic is not classified when adding port-list to virtual server from GUI
895845-5	3-Major		Implement automatic conflict resolution for gossip-conflicts in REST
892445-2	3-Major		BWC policy names are limited to 128 characters
891221-2	3-Major		Router bgp neighbor password CLI help string is not helpful
888869-2	3-Major		GUI reports General Database Error when accessing Instances Tab of SSL Certificates
888081-4	3-Major		BIG-IP VE Migration feature fails for 1NIC
887117-2	3-Major		Invalid SessionDB messages are sent to Standby
886649-2	3-Major		Connections stall when dynamic BWC policy is changed via GUI and TMSH
884989-1	3-Major		IKE_SA's Not mirrored of on Standby device if it reboots
884729-2	3-Major		The vCMP CPU usage stats are incorrect
883149-1	3-Major		The fix for ID 439539 can cause mcpd to core.
882833-2	3-Major		SELinux issue cause zrd down★
882709-4	3-Major		Traffic does not pass on tagged VLANs on VE configured on Hyper-V hypervisors★
882609-1	3-Major		ConfigSync status remains 'Disconnected' after setting ConfigSync IP to 'none' and back
881085-3	3-Major		Intermittent auth failures with remote LDAP auth for BIG-IP managment
880689-2	3-Major		Update oprofile tools for compatibility with current architecture
880473-1	3-Major		Under certain conditions, the virtio driver may core during shutdown
880013-1	3-Major		Config load fails after changing the BIG-IP Master key which has an encrypted key in it's configuration
880009-1	3-Major		Tcpdump does not export the TLS1.3 early secret
879969-5	3-Major		FQDN node resolution fails if DNS response latency >5 seconds
879001-1	3-Major		LDAP data is not updated consistently which might affect authentication.
876809-3	3-Major		GUI cannot delete a cert with a name that starts with * and ends with .crt
873641-1	3-Major		Re-offloading of TCP flows to hardware does not work
872165-2	3-Major		LDAP remote authentication for REST API calls may fail during authorization
871705-6	3-Major		Restarting bigstart shuts down the system
867549-3	3-Major		LCD touch panel reports "Firmware update in progress" indefinitely★
867253-3	3-Major		Systemd not deleting user journals
867249-1	3-Major		New SNMP authentication type and privacy protocol algorithms not available in UI
867177-3	3-Major		Outbound TFTP and Active FTP no longer work by default over the management port
864321-3	3-Major		Default Apache testing page is reachable at <mgmt-ip>/noindex
862693-6	3-Major		PAM_RHOST not set when authenticating BIG-IP using iControl REST
862525-1	3-Major		GUI Browser Cache Timeout option is not available via tmsh
860245-1	3-Major		SSL Orchestrator configuration not synchronized across HA peers after upgrade from 14.1.2.x
860181-1	3-Major		After sync failure due to lack of local self-IP on the peer, adding in the self-IP does not resolve the sync error
856953-4	3-Major		IPsec: TMM cores after ike-peer switched version from IKEv2 to IKEv1
853617-1	3-Major		Validation does not prevent virtual server with UDP, HTTP, SSL, (and OneConnect) profiles
853161-4	3-Major		Restjavad has different behavior for error responses if the body is over 2k
852565-5	3-Major		On Device Management::Overview GUI page, device order changes
852265-1	3-Major		Virtual Server Client and Server SSL profile list boxes no longer automatically scale for width
851785-3	3-Major		BIG-IP 10350V-F platform reported page allocation failures in N3FIPS driver
851021-1	3-Major		Under certain conditions, 'load sys config verify file /config/bigip.conf' may result in a 'folder does not exist' error
850997-1	3-Major		'SNMPD' no longer shows up in the list of daemons on the high availability (HA) Fail-safe GUI page
850357-1	3-Major		LDAP - tmsh cannot add config to nslcd.conf
846141-1	3-Major		Unable to use Rest API to manage GTM pool members that have an pipe symbol '\|' in the server name.
844925-3	3-Major		Command 'tmsh save /sys config' fails to save the configuration and hangs
843661-1	3-Major		TMSH allows you to specify the 'add-on-keys' option when running the 'revoke sys license' command
841721-2	3-Major		BWC::policy detach appears to run, but BWC control is still enabled
838337-1	3-Major		The BIG-IP system's time zone database does not reflect recent changes implemented by Brazil in regard to DST.
837481-7	3-Major		SNMPv3 pass phrases should not be synced between high availability (HA) devices as that are based on each devices unique engineID
827293-3	3-Major		TMM may crash running remote tcpdump
827209-4	3-Major		HSB transmit lockup on i4600
827021-7	3-Major		MCP update message may be lost when primary blade changes in chassis
826313-6	3-Major		Error: Media type is incompatible with other trunk members★
824809-6	3-Major		bcm56xxd watchdog restart
819457-1	3-Major		LTM high availability (HA) sync should not sync GTM zone configuration
819261-4	3-Major		Log HSB registers when parts of the device becomes unresponsive
818505-1	3-Major		Modifying a virtual address with an iControl PUT command causes the netmask to always change to IPv6 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
817089-3	3-Major		Incorrect source MAC address with hardware acceleration (ePVA) and asymmetric routing
814353-6	3-Major		Pool member silently changed to user-disabled from monitor-disabled
814273-1	3-Major		Multicast route entries are not populating to tmm after failover
810613-5	3-Major		GUI Login History hides informative message about max number of lines exceeded
809657-7	3-Major		HA Group score not computed correctly for an unmonitored pool when mcpd starts
807945-3	3-Major		Loading UCS file for the first time not updating MCP DB
807837-2	3-Major		Upgrade fails when client-ssl inherits proxy-ca-key/cert with error message: Client SSL profile (/Common/child): must have at least one set of CA type cert-key-chain.★
806881-6	3-Major		Loading the configuration may not set the virtual server enabled status correctly
803457-3	3-Major		SNMP custom stats cannot access iStats
803157-3	3-Major		LTM log contains shutdown sequence logs after boot_marker as logs are buffered until BIG-IP reboots
798885-4	3-Major		SNMP response times may be long when processing requests
796985-3	3-Major		Default IPv4 IP address is assigned to Alt-Address in isolated vCMP guest; vCMP host or guest are upgraded and guest is 'Inoperative'★
791365-3	3-Major		Bad encryption password error on UCS save
791061-5	3-Major		Config load in /Common removes routing protocols from other partitions
788645-5	3-Major		BGP does not function on static interfaces with vlan names longer than 16 characters.
786633-2	3-Major		Debug-level messages are being logged even when the system is not set up for debug logging
781733-5	3-Major		SNMPv3 user name configuration allows illegal names to be entered
780745-3	3-Major		TMSH allows creation of duplicate community strings for SNMP v1/v2 access
778513-1	3-Major		APM intermittently drops log messages for per-request policies
778041-3	3-Major		tcpdump fails with an unclear message when the 'epva' option is used on non-epva platforms (directly or through 'all' option)
776489-5	3-Major		Remote authentication attempts to resolve only LDAP host against the first three name servers configured.
775845-1	3-Major		Httpd fails to start after restarting the service using the iControl REST API
775797-3	3-Major		Previously deleted user account might get authenticated
773577-5	3-Major		SNMPv3: When a security-name and a username are the same but have different passwords, traps are not properly crafted
773173-2	3-Major		LTM Policy GUI is not working properly
767305-5	3-Major		If the mcpd daemon is restarted by itself, some SNMP OIDs fail to return data the first time they are queried
764969-2	3-Major		ILX no longer supports symlinks in workspaces as of v14.1.0
762097-3	3-Major		No swap memory available after upgrading to v14.1.0 and above★
760982-1	3-Major		An NLRI with a default route information is not propagated on 'clear ip bgp <neighbor router-id> soft out' command in some scenarios
760932-1	3-Major		Part of audit log messages are also in other logs when strings are long
760354-4	3-Major		Continual mcpd process restarts after removing big logs when /var/log is full
759737-3	3-Major		Control and Analysis Plane CPU usage statistics are inaccurate for single core vCMP guests
759258-5	3-Major		Instances shows incorrect pools if the same members are used in other pools
757787-3	3-Major		Unable to edit LTM/AFM Policies that belong to an Application Service (iApp) using the WebUI.
755976-4	3-Major		ZebOS might miss kernel routes after mcpd deamon restart
754335-3	3-Major		Install ISO does not boot on BIG-IP VE★
751409-7	3-Major		MCP Validation does not detect when virtual servers differ only by overlapping VLANs
749757-1	3-Major		-s option in qkview help does not indicate maximum size
746758-1	3-Major		Qkview produces core file if interrupted while exiting
744924-2	3-Major		Bladed unit goes offline after UCS install
741702-2	3-Major		TMM crash
739820-7	3-Major		Validation does not reject IPv6 address for TACACS auth configuration
739118-5	3-Major		Manually modifying a self IP address in bigip_base.conf file and reloading the configuration results in routing misconfiguration
737739-2	3-Major		Bash shell still accessible for admin even if disabled
730852-1	3-Major		The tmrouted repeatedly crashes and produces core when new peer device is added
725646-2	3-Major		The tmsh utility cores when multiple tmsh instances are spawned and terminated quickly
724653-3	3-Major		In a device group, a non-empty partition can be deleted by a peer device during a config sync
720610-3	3-Major		Updatecheck logs bogus 'Update Server unavailable' on every run
718291-3	3-Major		iHealth upload error does not clear
714216-4	3-Major		Folder in a partition may result in load sys config error
703226-2	3-Major		Failure when using transactions to create and publish policies
690928-3	3-Major		System posts error message: 01010054:3: tmrouted connection closed
688231-3	3-Major		Unable to set VET, AZOT, and AZOST timezones
662301-2	3-Major		'Unlicensed objects' error message appears despite there being no unlicensed config
658850-3	3-Major		Loading UCS with the platform-migrate parameter could unexpectedly set or unset management DHCP
654635-1	3-Major	K34003145	FTP virtual server connections may rapidly reuse ephemeral ports
639606-1	3-Major		If mcpd fails to load DNSSEC keys then signing does not happen and no error logged
627760-7	3-Major		Gtm_add operation does not retain same-name DNSSEC keys after synchronize FIPS card
615329-1	3-Major		Special Virtual IP configuration required for IPv6 connectivity on some Virtual Edition interfaces
605966-5	3-Major		BGP route-map changes may not immediately trigger route updates
587821-10	3-Major		vCMP Guest VLAN traffic failure after MCPD restarts on hypervisor.
554506-1	3-Major	K47835034	PMTU discovery from management does not work
538283-2	3-Major		iControl REST asynchronous tasks may block other tasks from running
499348-11	3-Major		System statistics may fail to update, or report negative deltas due to delayed stats merging
469724-3	3-Major		When evaluation/demonstration features expire, features enabled by both evaluation and perpetual licenses also expire
431503-8	3-Major	K14838	TMSH crashes in rare initial tunnel configurations
398683-4	3-Major	K12304	Use of a # in a TACACS secret causes remote auth to fail
385013-2	3-Major		Certain user roles do not trigger a sync for a 'modify auth password' command
1045277-2	3-Major		The /var partition may become 100% full requiring manual intervention to clear space
1044577-1	3-Major		TMM crash on BIG-IP Virtual Edition using DPDK and xnet drivers
1044281-2	3-Major		In some cases, cpcfg does not trigger selinux relabel, leaving files unlabeled
1043141-2	3-Major		Misleading 'Symmetric Unit Key decrypt failure - decrypt failure' when loading UCS from another BIG-IP
1042737-3	3-Major		BGP sending malformed update missing Tot-attr-len of '0.
1040117-1	3-Major		BIG-IP Virtual Edition drops UDP packets
1036557-3	3-Major		Monitor information not seen in GUI
1036541-3	3-Major		Inherited-traffic-group setting of floating IP does not sync on incremental sync
1036461-3	3-Major		icrd_child may core with high numbers of open file descriptors
1036097-3	3-Major		VLAN failsafe does not trigger on guest
1036009-2	3-Major		Fix DPDK RSS configuration settings
1035661-2	3-Major		REST Requests return 401 Unauthorized when using Basic Auth
1033689-2	3-Major		BGP route map community value cannot be set to the required range when using AA::NN notation
1033333-3	3-Major		FIPS: importing a stub SSL key file results in 2 keys that share the same FIPS device
1032949	3-Major		Dynamic CRL configured with client authentication profile as "Request" causes connection termination without certificate
1032821-5	3-Major		Syslog: invalid level/facility from /usr/libexec/smart_parse.pl
1032737-1	3-Major		IPsec: tmm SIGSEGV in getlocaladdr in ikev2_initiate
1032257-2	3-Major		Forwarded PVA offload requests fail on platforms with multiple PDE/TMM
1032077-2	3-Major		TACACS authentication fails with tac_author_read: short author body
1031117-2	3-Major		The mcpd error for virtual server profiles incompatible needs to have more details
1031025-2	3-Major		Nitrox 3 FIPS: Upgrade from v12.1.x to v14.1.x results in new .key.exp files for the FIPS keys created before upgrade.★
1028969-2	3-Major		An unused traffic-selector can prevent an IKEv2 IPsec tunnel from working
1027601	3-Major		AFM IP Error Checksum and Bad TCP Checksum vectors not supported
1027481-2	3-Major		'error: /bin/haloptns unexpected error -- 768' log messages generated on A110 and D112 platforms
1027477-2	3-Major		Virtual server created with address-list in custom partition non-RD0 does not create listener
1027237-3	3-Major		Cannot edit virtual server in GUI after loading config with traffic-matching-criteria
1026989-2	3-Major		More specific dynamic or static routes created for application traffic processing can erroneously replace the route to the management subnet.
1026973-2	3-Major		Static routes created for application traffic processing can erroneously replace the route to the management subnet.
1026861-2	3-Major		Live Update of Browser Challenges and Anti-Fraud are not cleaned up
1026581-1	3-Major		NETFLOW/IPFIX observationTimeMilliseconds Information Element value is not populated correctly.
1026549-3	3-Major		Incorrect BIG-IP Virtual Edition interface state changes may be communicated to mcpd
1026273-1	3-Major		HA failover connectivity using the cluster management address does not work on VIPRION platforms★
1025513-2	3-Major		PAM Authenticator can cause authorization failure if it fails to lock /var/log/tallylog
1025261-2	3-Major		When restjavad.useextramb is set, java immediately uses more resident memory in linux
1024661-2	3-Major		SCTP forwarding flows based on VTAG for bigproto
1024461	3-Major		Tenant "tmsh show sys performance" does not show the correct traffic count
1022997-3	3-Major		TCP segments with an incorrect checksum are transmitted when the sock driver is used in AWS deployments (e.g., 1NIC)
1022877-2	3-Major		Ping missing from list of Types for OAuth Client
1022757-3	3-Major		Tmm core due to corrupt list of ike-sa instances for a connection
1022637-2	3-Major		A partition other than /Common may fail to save the configuration to disk
1021925-3	3-Major		During bootup AWS BIG-IP endpoint was not licensed when custom gateway configured over management interface
1021873-2	3-Major		TMM crash in IPIP tunnel creation with a pool route
1021109-3	3-Major		The cmp-hash VLAN setting does not apply to trunked interfaces.
1020377-2	3-Major		Missing IKEv2 listeners can send IKE packets to the IKEv1 racoon daemon
1020277-2	3-Major		Mcpd may run out of memory when build image is missing★
1020129-1	3-Major		Turboflex page in GUI reports 'profile.Features is undefined' error★
1020089-2	3-Major		MCP validation should prevent defining multiple virtual servers with the same virtual address but with different subnet masks
1019793	3-Major		Image2disk does not work on F5OS BIG-IP tenant.★
1019749-1	3-Major		Enabling DHCP for management should not be allowed on vCMP guest
1019709-2	3-Major		Modifying mgmt-dhcp options should not be allowed on VCMP guest
1019429-3	3-Major		CMP Forwarded flows do not get syncache counter decremented when only server-side is PVA accelerated
1019357-1	3-Major		Active fails to resend ipsec ikev2_message_id_sync if no response received
1019285-3	3-Major		Systemd hangs and is unresponsive
1019129-3	3-Major		Changing syslog remote port requires syslog-ng restart to take effect
1019085-1	3-Major		Network virtual-addresses fail to retain the "icmp-echo enabled" property following an upgrade or reload of the configuration from file.★
1018673-2	3-Major		Virtual Edition systems replicate host traffic to all TMMs when a multicast MAC address is the traffic's nexthop
1018309-3	3-Major		Loading config file with imish removes the last character
1018165-2	3-Major		GUI display of DHCPv6 profile not correct for virtual server in non-default route-domain
1017897-2	3-Major		Self IP address creation fails with 'ioctl failed: No such device'
1017857-3	3-Major		Restore of UCS leads to incorrect UID on authorized_keys★
1016433	3-Major		URI rewriting is incorrect for "data:" and "javascript:"
1015453-3	3-Major		Under some circumstances, the "Local Traffic" menu in System -> Configuration is inaccessible in the GUI
1015093-3	3-Major		The "iq" column is missing from the ndal_tx_stats table
1014285-3	3-Major		Set auto-failback-enabled moved to false after upgrade★
1012601-2	3-Major		Alarm LED and LCD alert cleared prematurely on startup for missing PSU input
1012449-3	3-Major		Unable to edit custom inband monitor in the GUI
1012049-3	3-Major		Incorrect virtual server list returned in response to status request
1011265-1	3-Major		Failover script cannot read /config/partitions/ after upgrade★
1010341-2	3-Major		Slower REST calls after update for CVE-2021-22986
1010245-1	3-Major		Duplicate ipsec-sa SPI values shown by tmsh command
1009949-2	3-Major		High CPU usage when upgrading from previous version★
1009793-1	3-Major		Tmm crash when using ipsec
1008269-3	3-Major		Error: out of stack space
1007909-3	3-Major		Tcpdump with :p (peer flow) flag does not capture forwarded between TMMs
1004469-2	3-Major		SNMP OID ltmSipsessionProfileStatVsName and ltmSiprouterProfileStatVsName returns empty string
1003257-4	3-Major		ZebOS 'set ipv6 next-hop' and 'set ipv6 next-hop local' do not work as expected
1002417-1	3-Major		Switch L2 forwarding entries learnt on multi-blade trunk in one blade needs to be synchronized to other blades of that trunk
1001129-3	3-Major		Maximum Login Failures lockout for root and admin
1001069-3	3-Major		VE CPU higher after upgrade, given same throughput
1000325-2	3-Major		UCS load with 'reset-trust' may not work properly if base configuration fails to load★
992241-1	4-Minor		Unable to change initial admin password from GUI after root password change
985953-3	4-Minor		GRE Transparent Ethernet Bridging inner MAC overwrite
983021-2	4-Minor		Tmsh does not correctly handle the app-service for data-group records
976517-1	4-Minor		Tmsh run sys failover standby with a device specified but no traffic group fails
966073-1	4-Minor		GENEVE protocol support
964533-3	4-Minor		Multiple session_process_pending_event_callback ERROR: could not send callback messages get logged in the tmm logs
962605-4	4-Minor		BIG-IP may go offline after installing ASU file with insufficient disk space
957461-2	4-Minor		Creating virtual server with IPv6 address or port list in destination should display source address in IPv6 format
955593-2	4-Minor		"none" missing from the error string when snmp trap is configured with an invalid network type
955057-2	4-Minor		UCS archives containing a large number of DNS zone files may fail to restore.★
944485-5	4-Minor		License activation through proxy server uses IP address in proxy CONNECT, not nameserver
943597-2	4-Minor		'Upper Bound' and 'Lower Bound' thresholds are not displayed in Connections line chart
939757-4	4-Minor		Deleting a virtual server might not trigger route injection update.
939517-4	4-Minor		DB variable scheduler.minsleepduration.ltm changes to default value after reboot
929813-2	4-Minor		"Error loading object from cursor" while updating a client SSL profile
929173-2	4-Minor		Watchdog reset due to CPU stall detected by rcu_sched
928665-2	4-Minor		Kernel nf_conntrack table might get full with large configurations.
927441-3	4-Minor		Guest user not able to see virtual server details when ASM policy attached
921001-4	4-Minor		After provisioning change, pfmand might keep interfaces down on particular platforms
919861-1	4-Minor		Tunnel Static Forwarding Table does not show entries per page
918013-1	4-Minor		Log message with large wchan value
915473-1	4-Minor		Accessing Dashboard page with AVR provisioned causes continuous audit logs
915141-2	4-Minor		Availability status of virtual server remains 'available' even after associated pool's availability becomes 'unknown'
911713-3	4-Minor		Delay in Network Convergence with RSTP enabled
910645-1	4-Minor		Upgrade error 'Parsing default XML files. Failed to parse xml file'★
908453-3	4-Minor		Trunks with names longer than 32 characters update working-mbr-count in vCMP guests incorrectly
906449-2	4-Minor		Node, Pool Member, and Monitor Instance timestamps may be updated by config sync/load
905881	4-Minor		MTU assignment to non-existent interface
904661-3	4-Minor		Mellanox NIC speeds may be reported incorrectly on Virtual Edition
901985-6	4-Minor		Extend logging for incomplete HTTP requests
899097-2	4-Minor		Existence of rewrite profile with HTTP profile response chunking mode 'sustain' always triggers client-side chunking★
896693-4	4-Minor		Patch installation is failing for iControl REST endpoint.
896689-4	4-Minor		Asynchronous tasks can be managed via unintended endpoints
893813-3	4-Minor		Modifying pool enables address and port translation in TMUI
893093-2	4-Minor		An extraneous SSL CSR file in the /config/big3d or /config/gtm directory can prevent certain sections in the WebUI from showing.
884953-3	4-Minor		IKEv1 IPsec daemon racoon goes into an endless restart loop
884165-3	4-Minor		Datasync regenerating CAPTCHA table causing frequent syncs of datasync-device DG
869237-5	4-Minor		Management interface might become unreachable when alternating between DHCP/static address assignment.
860573-3	4-Minor		LTM iRule validation performance improvement by tracking procedure/event that have been validated
857045-1	4-Minor		LDAP system authentication may stop working
848681-7	4-Minor		Disabling the LCD on a VIPRION causes blade status lights to turn amber
846521-7	4-Minor		Config script does not refresh management address entry properly when alternating between dynamic and static
838925-7	4-Minor		Rewrite URI translation profile can cause connection reset while processing malformed CSS content
832665-1	4-Minor		The version of open-vm-tools included with BIG-IP Virtual Edition is 10.0.5
828625-3	4-Minor		User shouldn't be able to configure two identical traffic selectors
826189-3	4-Minor		The WebUI incorrectly allows the dns64-prefix option found in DNS profiles to include a subnet mask.
824205-3	4-Minor		GUI displays error when a virtual server is modified if it is using an address-list
822253-1	4-Minor		After starting up, mcpd may have defunct child "run" and "xargs" processes
819429-5	4-Minor		Unable to scp to device after upgrade: path not allowed
818737-3	4-Minor		Improve error message if user did not select a address-list or port list in the GUI
818297-3	4-Minor		OVSDB-server daemon lost permission to certs due to SELinux issue, causing SSL connection failure
817989-1	4-Minor		Cannot change managemnet IP from GUI
816353-3	4-Minor		Unknown trap OID 1.3.6.1.2.1.47.2.0.1.0.1
809089-1	4-Minor		TMM crash after sessiondb ref_cnt overflow
808481-5	4-Minor		Hertfordshire county missing from GTM Region list
807309-3	4-Minor		Incorrect Active/Standby status in CLI Prompt after failover test
805325-6	4-Minor		tmsh help text contains a reference to bigpipe, which is no longer supported
795429-5	4-Minor		Unrelated iControl REST transaction error message is returned when committing a transaction without any tasks.
766321-2	4-Minor		boot slots created on pre-14.x systems lack ACLs
759852-4	4-Minor		SNMP configuration for trap destinations can cause a warning in the log
759606-3	4-Minor		REST error message is logged every five minutes on vCMP Guest
759590-6	4-Minor		Creation of RADIUS authentication fails with service types other than 'authenticate only'
758105-6	4-Minor		Drive model WDC WD1005FBYZ-01YCBB2 must be added to pendsect drives.xml
757167-3	4-Minor		TMM logs 'MSIX is not supported' error on vCMP guests
756714-1	4-Minor		UIDs on /home directory are scrambled after upgrade★
753712-1	4-Minor		Incorrect warning: Traffic Matching Criteria's inline source address has been set to any4 from any6 to match inline destination address' address family.
742753-5	4-Minor		Accessing the BIG-IP system's WebUI via special proxy solutions may fail
742105-3	4-Minor		Displaying network map with virtual servers is slow
713183-4	4-Minor		Malformed JSON files may be present on vCMP host
712241-3	4-Minor		A vCMP guest may not provide guest health stats to the vCMP host
696363-4	4-Minor		Unable to create SNMP trap in the GUI
689147-3	4-Minor		Confusing log messages on certain user/role/partition misconfiguration when using remote role groups
675772-2	4-Minor		IPsec tunnels fail when traffic-selectors share one IPsec interface mode policy
674026-4	4-Minor		iSeries AOM web UI update fails to complete.★
673573-1	4-Minor		tmsh logs boost assertion when running child process and reaches idle-timeout
659579-4	4-Minor		Timestamps in icrd, restjavad, and restnoded logs are not synchronized with the system time
658943-3	4-Minor		Errors when platform-migrate loading UCS using trunks on vCMP guest
646768-1	4-Minor	K71255118	VCMP Guest CM device name not set to hostname when deployed
631083-5	4-Minor		Some files in home directory are overwritten on password change
603693-2	4-Minor	K52239932	Brace matching in switch statement of iRules can fail if literal strings use braces
550526-5	4-Minor	K84370515	Some time zones prevent configuring trust with a peer device using the GUI.
528894-6	4-Minor		Config-Sync after non-Common partition config changes results in extraneous config stanzas in the config files of the non-Common partition
472645-2	4-Minor		Memory issues when there is a lot of data in /var/annotate (annotations for dashboard)
1044893-3	4-Minor		Kernel warnings from NIC driver Realtek 8139
1041765-1	4-Minor		Racoon may crash in rare cases
1036265-3	4-Minor		Overlapping summary routes might not be advertised after ospf process restart.
1035017-2	4-Minor		Remove unused CA-bundles
1034589-2	4-Minor		No warning is given when a pool or trunk that was in use by an high availability (HA) Group is deleted from the configuration.
1034509-4	4-Minor		Sensor read errors on VIPRION C2200 chassis
1033969-3	4-Minor		MPLS label stripping needs next protocol indicator
1032921-3	4-Minor		VCMP Guest CPU usage shows abnormal values at the Host
1031425-2	4-Minor		Provide a configuration flag to disable BGP peer-id check.
1030645-3	4-Minor		BGP session resets during traffic-group failover
1029173-3	4-Minor		MCP daemon does not log an error message upon connection failure to PostgreSQL server.
1025965-3	4-Minor		Audit role users cannot see folder properties under sys-folder
1024621-3	4-Minor		Re-establishing BFD session might take longer than expected.
1024301-2	4-Minor		Missing required logs for "tmsh modify disk directory" command
1023817-1	4-Minor		Misleading "Enabling NAT64 for virtual server with security NAT policy configured is redundant/not required." warning
1022417-2	4-Minor		Ike stops with error ikev2_send_request: [WINDOW] full window
1022297-3	4-Minor		In BIG-IP GUI using "Select All" with filters is not working appropriately for policies
1020789-3	4-Minor		An i11800 cannot deploy a four core vCMP guest if the remaining cores are in use
1020109-2	4-Minor		Subnet mask property of virtual addresses not displayed in management GUI
1014361-1	4-Minor		Config sync fails after provisioning APM
1011217-3	4-Minor		TurboFlex Profile setting reverts to turboflex-base after upgrade★
1011081-2	4-Minor		Connection lost to the Postgres client during the BIG-IP bootup process
1010785-1	4-Minor		Online help is missing for CRL in client SSL profile and server SSL profile
1010761-1	4-Minor		Missing TMSH help description for client-ssl profile 'CRL'
1006449-2	4-Minor		The default size of the subagent object cache possibly leading to slow snmp response time★
1003469-2	4-Minor		The BIG-IP GUI fails to reset the statistics for an IPv6 pool member and returns an error.
1003081-2	4-Minor		GRE/TB-encapsulated fragments are not forwarded.
1002809-1	4-Minor		OSPF vertex-threshold should be at least 100
989937-1	5-Cosmetic		Device Trust Certificates Expiring after 2038-01-19 show date of 1969
965457-4	5-Cosmetic		OSPF duplicate router detection might report false positives
964421-2	5-Cosmetic		Error '01070734:3: Configuration error: Signing key and signing certificate must be set simultaneously'
905893	5-Cosmetic		Modification of SmartNIC MTU not supported
832661	5-Cosmetic		Default provisioning for all instances is LTM nominal★
818777-2	5-Cosmetic		MCPD error - Trouble allocating MAC address for VLAN object
353607-1	5-Cosmetic		cli global-settings { service number } appears to have no effect
1022421-3	5-Cosmetic		Pendsec utility incorrectly starts on i2x00/i4x00 platform with NON WD disk

Local Traffic Manager Issues

ID Number	Severity	Solution Article(s)	Description
967249-2	2-Critical		TMM may leak memory early during its startup process, and may continue to do so indefinitely.
949137-3	2-Critical		Clusterd crash and vCMP guest failover
946481-1	2-Critical		Virtual Edition FIPS not compatible with TLS 1.3
944381-1	2-Critical		Dynamic CRL checking for client certificate is not working when TLS1.3 is used.
938545-3	2-Critical		Oversize plugin Tcl object results can result in 0-length messages and plugin crash
937777-2	2-Critical		The invalid configuration of using HTTP::payload in a PEM Policy may cause the TMM to crash.
937649-3	2-Critical		Flow fwd broken with statemirror.verify enabled and source-port preserve strict
935193-1	2-Critical		With APM and AFM provisioned, single logout ( SLO ) fails
927633-2	2-Critical		Failure path in external datagroup internal mapping operation failure may result in 'entry != NULL' panic
926985-2	2-Critical		HTTP/3 aborts stream on incomplete frame headers
914309-3	2-Critical		TMM crash seen with FTP and Classification profiles
910213-2	2-Critical		LB::down iRule command is ineffective, and can lead to inconsistent pool member status
901033-2	2-Critical		TCP::respond causing memory exhaustion issue when send buffer overwhelmed available TCP window
886045-2	2-Critical		Multi-NIC instances fail to come up when trying to use memory-mapped virtio device
864897-2	2-Critical		TMM may crash when using "SSL::extensions insert"
862885-2	2-Critical		Virtual server-to-virtual server with 'Tail Loss Probe' enabled can result in 'no trailing data' error
851385-1	2-Critical		Failover takes too long when traffic blade failure occurs
835505-1	2-Critical		Tmsh crash potentially related to NGFIPS SDK
824437-7	2-Critical		Chaining a standard virtual server and an ipother virtual server together can crash TMM.
797573-3	2-Critical		TMM assert crash with resulting in core generation in multi-blade chassis
763145-2	2-Critical		TMM Crash when using certain HTTP iRules with HTTP Security Profile
758491-3	2-Critical		When using NetHSM integration, after upgrade to 14.1.0 or later (or creating keys using fipskey.nethsm), BIG-IP cannot use the keys
743950-5	2-Critical		TMM crashes due to memory leak found during SSL OCSP with C3D feature enabled
632553-5	2-Critical	K14947100	DHCP: OFFER packets from server are intermittently dropped
625807-3	2-Critical		Tmm cores in bigproto_cookie_buffer_to_server
474797-8	2-Critical		Nitrox crypto hardware may attempt soft reset while currently resetting
1040361-2	2-Critical		TMM crashes during its startup when TMC destination port list attached/deleted to virtual server
1030185-3	2-Critical		TMM may crash when looking up a persistence record using "persist lookup" iRule commands
1024241-2	2-Critical		NULL TLS records from client to BIG-IP results in SSL session termination
1020645-1	2-Critical		When HTTP CONNECT is sent, iRule event HTTP_RESPONSE_RELEASE is not triggered
1013181-2	2-Critical		TMM may produce core when dynamic CRL check is enabled on the client SSL profile
1009161-1	2-Critical		SSL mirroring protect for null sessions
1004317-2	2-Critical		Csyncd removes files and directories under /config/zebos, /var/named/config/namedb, etc.
999881-4	3-Major		Tcl command 'string first' not working if payload contains Unicode characters.
999097-3	3-Major		SSL::profile may select profile with outdated configuration
998253-2	3-Major		SNI configuration is not sent via HTTPS when in-tmm monitors are disabled
996649-4	3-Major		Improper handling of DHCP flows leading to orphaned server-side connections
995201-4	3-Major		IP fragments for the same flow are dropped if they are received on different VLANs and route domains.
994081-2	3-Major		Traffic may be dropped with an Immediate idle timeout setting.
993517-3	3-Major		Loading an upgraded config can result in a file object error in some cases
991501-3	3-Major		Pool members with HTTPS monitor may be incorrectly marked down.
991265-2	3-Major		Persistence entries point to the wrong servers for longer periods of time
987077-1	3-Major		TLS1.3 with client authentication handshake failure
985925-1	3-Major		Ipv6 Routing Header processing not compatible as per Segments Left value.
985749-3	3-Major		TCP exponential backoff algorithm does not comply with RFC 6298
985433-2	3-Major		Insertion of the X-Forwarded-For HTTP header can fail, causing the client's connection to be reset.
985401-3	3-Major		ProxySSL virtual servers should work with web acceleration (ramcache) profiles attached
984897-3	3-Major		Some connections performing SSL mirroring are not handled correctly by the Standby unit.
980617-3	3-Major		SNAT iRule is not working with HTTP/2 and HTTP Router profiles
978953-2	3-Major		The value of the sys db variable vlan.backplane.mtu intermittently out-of-sync with the value of the MTU of the kernel interface tmm_bp during the initial boot up
978833-2	3-Major		Use of CRL-based Certificate Monitoring Causes Memory Leak
977153-1	3-Major		Packet with routing header IPv6 as next header in IP layer fails to be forwarded
976525-3	3-Major		Transparent monitors can have the incorrect source address when snat.hosttraffic is enabled
976101-2	3-Major		TMM crash after deleting an interface from a virtual wire vlan
975725-3	3-Major		Wildcard virtual servers do not forward L3 unicast traffic sent to L2 broadcast
975657	3-Major		With HTTP2 enabled, only partial sorry contents (< 32KB) can be sent to the client via HTTP::respond
971217-2	3-Major		AFM HTTP security profiles may treat POST requests with Content-Length: 0 as "Unparsable Request Content" violations.
968949-5	3-Major		Keepalives aren't sent in FIN_WAIT_2 when using a TCP profile
967425-2	3-Major		mcp error: 0x1020036 at ../mcp/db_pool.c:461
967353-3	3-Major		HTTP proxy should trim spaces between a header field-name and colon in its downstream responses.
967093-1	3-Major		In SSL forward proxy when the signing CA cert and end-entity cert has a different signature algorithm, the SSL connection may fail
965037-1	3-Major		SSL Orchestrator does not send HTTP CONNECT tunnel payload to services
963869-2	3-Major		Remote Desktop app fails to launch from webtop when Per-request Policy is added to virtual server.
963705-3	3-Major		Proxy ssl server response not forwarded
963393-1	3-Major		Key handle 0 is treated as invalid for NetHSM devices
962913-4	3-Major		The number of native open connections in the SSL profile is higher than expected
961653-2	3-Major		Unable to retrieve DNS link statistics via SNMP OID gtmLinkStatRate
961001-2	3-Major		Arp requests not resolved for snatpool members when primary blade goes offline
958785-5	3-Major		FTP data transfer does not complete after QUIT signal
955617-2	3-Major		Cannot modify properties of a monitor that is already in use by a pool
953601-3	3-Major		HTTPS monitors marking pool member offline when restrictive ciphers are configured for all TLS protocol versions
950005-2	3-Major		TCP connection is not closed when necessary after HTTP::respond iRule
948065-3	3-Major		DNS Responses egress with an incorrect source IP address.
947125-2	3-Major		Unable to delete monitors after certain operations
945601-4	3-Major		An incorrect LTM policy rule may be matched when a policy consists of multiple rules with TCP address matching conditions.
945189-2	3-Major		HTTPS monitor fails due to missing ECDHE-RSA-AES256-CBC-SHA★
944173-2	3-Major		SSL monitor stuck does not change TLS version
942217-3	3-Major		Virtual server keeps rejecting connections for rstcause 'VIP down' even though virtual status is 'available'
939209-1	3-Major		FIPS 140-2 SP800-56Arev3 compliance
939085-2	3-Major		/config/ssl/ssl.csr directory disappears after creating certificate archive
938309-2	3-Major		In-TMM Monitors time out unexpectedly
937769-2	3-Major		SSL connection mirroring failure on standy with sslv2 records
937573-3	3-Major		Connections drop in virtual server with Immediate Action On Service Down set to Drop
936441-2	3-Major		Nitrox5 SDK driver logging messages
935793-2	3-Major		With mirroring enabled on a SIP virtual server, connections on the standby are reset with MBLB internal error (Routing problem)★
934697-3	3-Major		Route domain not reachable (strict mode)
932857-2	3-Major		Delays marking Nodes or Pool Members DOWN with in-TMM monitoring
932461-3	3-Major		Cert update on server SSL profile on HTTPS monitor: BIG-IP not using the updated certificate.
928445-4	3-Major		HTTPS monitor is down when server_ssl profile cipher string is configured to TLSv1_2
927713-1	3-Major		Secondary blade IPsec SAs lost after standby reboot using clsh reboot
927589-3	3-Major		ILX::call command response get truncated
927569-2	3-Major		HTTP/3 rejects subsequent partial SETTINGS frames
926757-2	3-Major		ICMP traffic to a disabled virtual-address might be handled by a virtual-server.
926513-2	3-Major		HTTP/2 clone pool fails to receive traffic with the clone pool (server) option selected.
922641-4	3-Major		Any iRules that park in a clientside or serverside command leave the iRule attached to the wrong flow
922413-2	3-Major		Excessive memory consumption with ntlmconnpool configured
921541-3	3-Major		When certain sized payloads are gzipped, the resulting payload is chunked, incorrect, and is never delivered to the client due to missing end of chunk marker.
920789-2	3-Major		UDP commands in iRules executed during FLOW_INIT event fail
920285	3-Major		WS::disconnect may result in TMM crash under certain conditions
920205-4	3-Major		Rate shaping might suppress TCP RST
918277-2	3-Major		Slow Ramp does not take into account pool members' ratio weights
915773-1	3-Major		Restart of TMM after stale interface reference
914061-2	3-Major		BIG-IP may reject a POST request if it comes first and exceeds the initial window size
913385-1	3-Major		TMM generates core while deleting iFiles
912517-2	3-Major		MySQL monitor marks pool member down if 'send' is configured but no 'receive' strings are configured
912293-3	3-Major		Persistence might not work properly on virtual servers that utilize address lists
910905-1	3-Major		Unexpected tmm core
910673-4	3-Major		Nethsm-thales-install.sh installation fails with error 'Could not reach Thales HSM'
910273-2	3-Major		SSL Certificate version always displays as '1' in the GUI
910105-1	3-Major		Partial HTTP/2 payload may freeze on the BIG-IP system
909997-3	3-Major		Virtual server status displays as unavailable when it is accepting connections
909677-2	3-Major		HTTP/2 full proxy always sets the :scheme pseudo-header for HTTPS requests where the server-side connection is not encrypted
907177-2	3-Major		Priority of embedded APM iRules is ignored
906653-3	3-Major		Server side UDP immediate idle-timeout drops datagrams
905477-2	3-Major		The sdmd daemon cores during config sync when multiple devices configured for iRules LX
904625-2	3-Major		Changes to SSL.CertRequest.* DB variables cause high availability (HA) devices go out of sync
904041-2	3-Major		Ephemeral pool members may be incorrect when modified via various actions
902377-2	3-Major		HTML profile forces re-chunk even though HTML::disable
901569-1	3-Major		Loopback traffic might get dropped when VLAN filter is enabled for a virtual server.
898733-3	3-Major		SSL handshakes fail on secondary blades for Thales keys created with fipskey.nethsm after upgrade to 14.1.x and re-import of the keys from HSM
898685-4	3-Major		Order of ciphers changes after updating cipher group
897185-2	3-Major		Resolver cache not using random port distribution
896245-3	3-Major		Inconsistency is observed in ARP behavior across releases
895649-2	3-Major		Improve TCP analytics goodput reports
895205-2	3-Major		A circular reference in rewrite profiles causes MCP to crash
895165-2	3-Major		Traffic-matching-criteria with "any" protocol overlaps with explicit protocols
892801-2	3-Major		When an Internal Virtual Server is created without an existing 0.0.0.0 virtual address, it will have the state "disabled-by-parent"
892485-2	3-Major		A wrong OCSP status cache may be looked up and re-used during SSL handshake.
892073-3	3-Major		TLS1.3 LTM policy rule based on SSL SNI is not triggered
891145-5	3-Major		TCP PAWS: send an ACK for half-open connections that receive a SYN with an older TSVal
889245-3	3-Major		Ndal ixvf driver can lock up
888885-1	3-Major		BIG-IP Virtual Edition TMM restarts frequently without core
887045-1	3-Major		The session key does not get mirrored to standby.
885325-2	3-Major		Stats might be incorrect for iRules that get executed a large number of times
883133-2	3-Major		TLS_FALLBACK_SCSV with TLS1.3
883049-2	3-Major		Statsd can deadlock with rrdshim if an rrd file is invalid
882725-5	3-Major		Mirroring not working properly when default route vlan names not match.
881065-1	3-Major		Adding port-list to Virtual Server changes the route domain to 0
881041-3	3-Major		BIG-IP system may forward IP broadcast packets back to the incoming VLAN interface via a forwarding virtual server.
878253-1	3-Major		LB::down no longer sends an immediate monitor probe
876569-3	3-Major		QAT compression codec produces gzip stream with CRC error
876145-3	3-Major		Nitrox5 failure on vCMP guest results in all crypto requests failing.
874877-1	3-Major		Bigd http monitor shows misleading 'down' reason when recv does not match
874317-1	3-Major		Client-side asymmetric routing could lead to SYN and SYN-ACK on different VLAN
873677-7	3-Major		LTM policy matching does not work as expected
872981-1	3-Major		MCP crashes when deleting a virtual server and its traffic-matching-criteria in the same transaction
872721-3	3-Major		SSL connection mirroring intermittent failure with TLS1.3
872685-1	3-Major		Some HTTP/3 streams terminate early
871045-1	3-Major		IP fragments are disaggregated to separate TMMs with hardware syncookies enabled
870349-1	3-Major		Continuous restart of ntlmconnpool after license reinstall★
868033-1	3-Major		SSL option "passive-close" option is unused and should be removed
867985-4	3-Major		LTM policy with a 'shutdown' action incorrectly allows iRule execution
864649-4	3-Major		The client-side connection of a dhcpv4_fwd profile on Broadcast DHCP-Relay Virtual Server never expires from the connection table
863165-3	3-Major		Unbalanced trunk distribution on i4x00 and 4000 platforms with odd number of members.
862069-1	3-Major		Using non-standard HTTPS and SSH ports fails under certain conditions
862001-1	3-Major		Improperly configured NTP server can result in an undisciplined clock stanza
860277-4	3-Major		Default value of TCP Profile Proxy Buffer High Low changed in 14.1
852953-1	3-Major		Accept Client Hello spread over multiple QUIC packets
852325-1	3-Major		HTTP2 does not support Global SNAT
851353-1	3-Major		Connection reset with incorrect error code when invalid or malformed header is received in an HTTP/3 request
851121-2	3-Major		Database monitor DBDaemon debug logging not enabled consistently
851101-4	3-Major		Unable to establish active FTP connection with custom FTP filter
846977-1	3-Major		TCP:collect validation changed in 12.0.0: the first argument can no longer be zero★
846873-4	3-Major		Deleting and re-adding the last virtual server that references a plugin profile in a single transaction causes traffic failure
843317-3	3-Major		The iRules LX workspace imported with incorrect SELinux contexts
842425-1	3-Major		Mirrored connections on standby are never removed in certain configurations
842137-3	3-Major		Keys cannot be created on module protected partitions when strict FIPS mode is set
841369-3	3-Major		HTTP monitor GUI displays incorrect green status information
841341-6	3-Major		IP forwarding virtual server does not pick up any traffic if destination address is shared.
840785-1	3-Major		Update documented examples for REST::send to use valid REST endpoints
838353-1	3-Major		MQTT monitor is not working in route domain.
832133-1	3-Major		In-TMM monitors fail to match certain binary data in the response from the server.
825245-4	3-Major		SSL::enable does not work for server side ssl
824433-3	3-Major		Added HTTP2 and HTTP3 request/response statistic fields to the HTTP profile
823825-7	3-Major		Renaming HA VLAN can disrupt state-mirror connection
818789-7	3-Major		Setting ssl profile to none in https monitor, not setting Ciphers to DEFAULT as in serverssl Profile
816953-1	3-Major		RST_STREAM is sent in closed state on a serverside stream in HTTP/2 full proxy
815405-6	3-Major		GUI update of Child FastL4 profile overwrites CLI-only customized settings (options that are not available in GUI)
812693-3	3-Major		Connection in FIN_WAIT_2 state may fail to be removed
810533-2	3-Major		SSL Handshakes may fail with valid SNI when SNI required is true but no Server Name is specified in the profile
808017-5	3-Major		When using a variable as the only parameter to the iRule persist command, the iRule validation fails
805561-3	3-Major		Change of pool configuration in OneConnect environment can impact active traffic
803629-7	3-Major		SQL monitor fails with 'Analyze Response failure' message even if recv string is correct
803109-3	3-Major		Certain configuration may result in zombie forwarding flows
795933-7	3-Major		A pool member's cur_sessions stat may incorrectly not decrease for certain configurations
794505-5	3-Major		OSPFv3 IPv4 address family route-map filtering does not work
794385-3	3-Major		BGP sessions may be reset after CMP state change
793669-5	3-Major		FQDN ephemeral pool members on high availability (HA) pair does not get properly synced of the new session value
787973-1	3-Major		Potential memory leak when software crypto request is canceled.
785361-3	3-Major		In L2wire mode packets from srcIP 0.0.0.0 will be silently dropped
780857-2	3-Major		HA failover network disruption when cluster management IP is not in the list of unicast addresses
779137-5	3-Major		Using a source address list for a virtual server does not preserve the destination address prefix
778841-3	3-Major		Traffic is not passing in virtual wire when Virtual server type is standard & IP profile is ipother
778501-2	3-Major		LB_FAILED does not fire on failure of HTTP/2 server connection establishment
774817-1	3-Major		ICMP packets are intermittently forwarded out of both VLAN group members
767217-5	3-Major		Under certain conditions when deleting an iRule, an incorrect dependency error is seen
766593-5	3-Major		RESOLV::lookup with bytes array input does not work when length is exactly 4, 16, or 20
760406-1	3-Major		HA connection might stall on Active device when the SSL session cache becomes out-of-sync
758041-1	3-Major		Pool Members may not be updated accurately when multiple identical database monitors are configured
757029-6	3-Major		Ephemeral pool members may not be created after config load or reboot
756313-6	3-Major		SSL monitor continues to mark pool member down after restoring services
755791-6	3-Major		UDP monitor not behaving properly on different ICMP reject codes.
755631-5	3-Major		UDP / DNS monitor marking node down
754604-4	3-Major		iRule : [string first] returns incorrect results when string2 contains null
753526-7	3-Major		IP::addr iRule command does not allow single digit mask
751451-2	3-Major		When upgrading to v14.0.0 or later, the 'no-tlsv1.3' option is missing from HTTPS monitors automatically created server SSL profiles
748886-3	3-Major		Virtual server stops passing traffic after modification
724327-3	3-Major		Changes to a cipher rule do not immediately have an effect
723306-7	3-Major		Error in creating internal virtual servers, when address 0.0.0.0 exists on different partition
723112-8	3-Major		LTM policies does not work if a condition has more than 127 matches
709952-4	3-Major		Disallow DHCP relay traffic to traverse between route domains
705387-3	3-Major		HTTP/2, ALPN and SSL
700639-2	3-Major		The default value for the syncookie threshold is not set to the correct value
686395-3	3-Major		With DTLS version1, when client hello uses version1.2, handshake shall proceed
672963-2	3-Major		MSSQL monitor fails against databases using non-native charset
608952-1	3-Major		MSSQL health monitors fail when SQL server requires TLSv1.1 or TLSv1.2
582666-1	3-Major		TMM spams ltm log with "01010235:2: Inet port find called for pg 1 with invalid cmp state 0"
574762-2	3-Major		Forwarding flows leak when a routing update changes the egress vlan
512490-11	3-Major		Increased latency during connection setup when using FastL4 profile and connection mirroring.
500786-9	3-Major		Heavy memory usage while using FastL4/BIGTCP virtual server with HTTP profile
315765-2	3-Major		The BIG-IP system erroneously performs a SNAT translation after the SNAT translation address has been disabled.
1043805-2	3-Major		ICMP traffic over NAT does not work properly.
1043357-3	3-Major		SSL handshake may fail when using remote crypto client
1043017-3	3-Major		Virtual-wire with standard-virtual fragmentation
1042913	3-Major		Pkcs11d CPU utilization jumps to 100%
1040957-2	3-Major		The ipother profile can be used with incompatible profiles in a virtual server
1040045-2	3-Major		Unable to delete trunk member on a VCMP guest
1040017-3	3-Major		Final ACK validation during flow accept might fail with hardware SYN Cookie
1039277-3	3-Major		TMM core
1038629	3-Major		DTLS virtual server not performing clean shutdown upon reception of CLOSE_NOTIFY from client
1037645-1	3-Major		TMM may crash under memory pressure when using iRule 'AES::key' command
1036873-1	3-Major		Pre-shared key extension sometimes is not the last extension in ClientHello in TLS1.3
1036169-3	3-Major		VCMPD rsync server max connection limit: guest "Exit flags for PID 17299: 0x500".
1036093-3	3-Major		Tmm sends out neighbor advertisements for the link local addresses even if IPv6 is disabled
1036013-2	3-Major		BIG-IP systems may terminate connections prematurely when a TLS close-notify alert is received
1034953-2	3-Major		In explicit proxy, HTTP_STATCODE missing from syslog
1034365-2	3-Major		DTLS handshake fails with DTLS1.2 client version
1033537-3	3-Major		Cookie persistence profile only examines first cookie with required name.
1029069-1	3-Major		Non-ASCII characters are not displayed correctly.
1025089-3	3-Major		Pool members marked down by database monitor due to stale cached connection
1024841-1	3-Major		SSL connection mirroring with ocsp connection failure on standby
1024225	3-Major		BIG-IP sends "Transfer-Encoding: chunked" to http/2 client after HEAD request
1023365-1	3-Major		SSL server response could be dropped on immediate shutdown
1022453-2	3-Major		IPv6 fragments are dropped when packet filtering is enabled.
1021837-2	3-Major		When a virtual server has an inline service profile configured, connections will be reset with cause "No server selected"
1020069-2	3-Major		Equinix SmartKey HSM is not working with nethsm-partition 'fortanix'
1019641-1	3-Major		SCTP INIT_ACK not forwarded
1019261-2	3-Major		In-TMM HTTPS monitor with SSL Profile set to None does not use serverssl profile.
1018765-2	3-Major		Changing the sshd port breaks some BIG-IP utilities on a multi-bladed system
1018577-3	3-Major		SASP monitor does not mark pool member with same IP Address but different Port from another pool member
1017885-4	3-Major		Wildcard server-name does not match multiple labels in FQDN
1017801-3	3-Major		Internal listeners (cgc, ftp data, etc) all share the same listener_key stats
1017721-3	3-Major		WebSocket does not close cleanly when SSL enabled.
1017513-3	3-Major		Config sync fails with error Invalid monitor rule instance identifier
1017421-3	3-Major		SASP Monitor does not log significant error conditions at default logging level
1017029-3	3-Major		SASP monitor does not identify specific cause of failed SASP Registration attempt
1016921-4	3-Major		SSL Connection mirroring - session resumption does not occur on standby when the session ticket is enabled
1016589-3	3-Major		Incorrect expression in STREAM::expression might cause a tmm crash
1016449-2	3-Major		Gratuitous ARP sent to the old self IP address when a self IP is deleted/created.
1015817-3	3-Major		Flows rejected due to no return route do not increment rejection stats
1015201	3-Major		HTTP unchunking satellite leaks ERR_MORE_DATA which can cause connection to be aborted.
1015161-2	3-Major		Ephemeral pool member may not be created when FQDN resolves to address that matches static node
1014633-3	3-Major		Transparent / gateway monitors may fail if there is no route to a node
1013597-1	3-Major		`HTTP2::disable serverside` can reset flows
1013209-2	3-Major		BIG-IP components relying on ca-bundle.crt may stop working after upgrade★
1012813-3	3-Major		Statsd can deadlock with rrdshim with the error that a stats file "is not an RRD file"
1012009-1	3-Major		MQTT Message Routing virtual may result in TMM crash
1010209-3	3-Major		BIG-IP configuration allows literal CR and LF characters in LTM monitor send and recv strings
1009921-1	3-Major		'SSL::verify_result' iRule command may return incorrect value when combined with dynamic CRL check
1008501-3	3-Major		TMM core
1008017-5	3-Major		Validation failure on Enforce TLS Requirements and TLS Renegotiation
1008009-2	3-Major		SSL mirroring null hs during session sync state
1007749-1	3-Major		URI TCL parse functions fail when there are interior segments with periods and semi-colons
1006857-3	3-Major		Adding a source address list to a virtual server in a partition with a non-default route domain fails
1006781-1	3-Major		Server SYN is sent on VLAN 0 when destination MAC is multicast
1006157-1	3-Major		FQDN nodes not repopulated immediately after 'load sys config'
1004897-4	3-Major		'Decompression' is logged instead of 'Max Headers Exceeded' GoAway reason
1004609-4	3-Major		SSL forward proxy virtual server may set empty SSL session_id in server hello.
1004445-4	3-Major		Warning not generated when maximum prefix limit is exceeded.
1000561-3	3-Major		Chunk size incorrectly passed to client-side
1000069-1	3-Major		Virtual server does not create the listener
999709-4	4-Minor		iRule 'pool'/'virtual' commands not triggered in CLIENT_ACCEPTED with HTTP/2.
999669-2	4-Minor		Some HTTPS monitors are failing after upgrade when config has different SSL option★
994269-2	4-Minor		Message: 'double flow removal' in LTM log file
990173-3	4-Minor		Dynconfd repeatedly sends the same mcp message to mcpd
987885-4	4-Minor		Half-open unclean SSL termination might not close the connection properly
987401-2	4-Minor		Increased TMM memory usage on standby unit after pool flap
982993-4	4-Minor		Gateway ICMP monitors with IPv6 destination and IPV6 transparent nexthop might fail
962181-2	4-Minor		iRule POLICY command fails in server-side events
956025-2	4-Minor		HTTP profile response-chunking "unchunk" option does not remove Content-Length from response header
949721-2	4-Minor		QUIC does not send control frames in PTO packets
947937-2	4-Minor		HTTP iRule commands may fail to execute within the "fallback-host" HTTP profile field.
947745-1	4-Minor		Tcp proxy does not ignore HUDEVT_CHILD_CONNECTED and gives an error
943945	4-Minor		Incorrect Error message in /var/log/ltm when HTTP::respond is used in ADAPT_REQUEST_RESULT iRule event
942793-1	4-Minor		BIG-IP system cannot accept STARTTLS command with trailing white space
940837-2	4-Minor		The iRule command node is not triggered in CLIENT_ACCEPTED with HTTP/2.
936557-2	4-Minor		Retransmissions of the initial SYN segment on the BIG-IP system's server-side incorrectly use a non-zero acknowledgement number when Verified Accept is enabled.
932553-4	4-Minor		An HTTP request is not served when a remote logging server is down
932045-3	4-Minor		Memory leak when creating/deleting LTM node object
931469-7	4-Minor		Redundant socket close when half-open monitor pings
929429-2	4-Minor		Oracle/SQL database monitor uses excessive CPU when Platform FIPS is licensed
922005-3	4-Minor		Stats on a certain counter for web-acceleration profile may show excessive value
921993-3	4-Minor		LTM policy with a 'contains' operator does not work as expected when using an external data group.
921477-2	4-Minor		Health monitors may fail when the HTTP RFC Compliance option is enabled in a dual BIG-IP setup.
916485-2	4-Minor		Tmsh install sys crypto key (SafeNet) command creates a duplicate mcp object
915969-1	4-Minor		Truncated QUIC connection close reason
914589-2	4-Minor		VLAN Failsafe timeout is not always respected
911853-5	4-Minor		Stream filter chunk-size limits filter to a single match per ingress buffer
910965-2	4-Minor		Overflow of Multicast table filling the tmm log
907045-2	4-Minor		QUIC HANDSHAKE_DONE is sent at the end of first flight
904537-3	4-Minor		The csyncd process may keep trying to sync the GeoIP database to a secondary blade
901485-2	4-Minor		HTTP_RESPONSE_RELEASE is not raised for HTTP early response
898753-5	4-Minor		Multicast control-plane traffic requires handling with AFM policies
898201-2	4-Minor		Fqdn nodes are not getting populated after BIG-IP reboot when DNS server is accessed through a local virtual server.
890881-4	4-Minor		ARP entry in the FDB table is created on VLAN group when the MAC in the ARP reply differs from Ethernet address
880697-1	4-Minor		URI::query command returning fragment part, instead of query part
869565-1	4-Minor		Disabling of HTTP/2 profile on server side does not prevent h2 in ALPN
869553-1	4-Minor		HTTP2::disable fails for server side allowing HTTP/2 traffic
858309-4	4-Minor		Setting a self IP with an IPv6 Address with an embedded IPv4 address causes tmm to continually restart
851757-1	4-Minor		Receiving a TLS END_OF_EARLY_DATA message in QUIC is a PROTOCOL_VIOLATION
851425-1	4-Minor		Update QLOG to draft-01
845545	4-Minor		Potential name collision for client-ssl profile named 'clientssl-quic'
844337-4	4-Minor		Tcl error log improvement for node command
838405-3	4-Minor		Listener traffic-group may not be updated properly when spanning is in use.
838305-7	4-Minor		BIG-IP may create multiple connections for packets that should belong to a single flow.
834217-7	4-Minor		Some init-rwnd and client-mss combinations may result in sub-optimal advertised TCP window.
832233-1	4-Minor		The iRule regexp command issues an incorrect warning
829021-3	4-Minor		BIG-IP does not account a presence of http2 profile when response payload is modified
818721-3	4-Minor		Virtual address can be deleted while it is in use by an address-list.
807397-3	4-Minor		IRules ending with a comment cause config verification to fail
802721-4	4-Minor		Virtual Server iRule does not match an External Data Group key that's 128 characters long
801705-6	4-Minor		When inserting a cookie or a cookie attribute, BIG-IP does not add a leading space, required by RFC
760590-3	4-Minor		TCP Verified-Accept with proxy-mss enabled does not honor the route-metrics cache when sending the SYN to the server
758435-2	4-Minor		Ordinal value in LTM policy rules sometimes do not work as expected★
750705-3	4-Minor		LTM logs are filled with error messages while creating/deleting virtual wire configuration
742603-5	4-Minor		WebSocket Statistics are updated to differentiate between client and server sides
717806-1	4-Minor		In the case of 'n' bigd instances, uneven CPU load distribution is seen when a high number of monitors are configured
683534-3	4-Minor		'tmsh show sys connection' command prompt displaying 4 billion connections is misleading
640374-2	4-Minor		DHCP statistics are incorrect
1042133	4-Minor		Current Sessions value of gateway route pool member goes negative
1037153-3	4-Minor		iRule "log" command to remote destinations may cause TMM to leak memory
1035757-3	4-Minor		iRulesLX restart leaves stale files in /var/tmstat/blade/tmplugin_ilx_*
1034865-3	4-Minor		CACHE::enable failed on private/no-store content
1031901-1	4-Minor		In HTTP2 deployment, RST_STREAM sent to client if server in CLOSING state is picked
1030533-2	4-Minor		The BIG-IP system may reject valid HTTP responses from OCSP servers.
1027805-3	4-Minor		DHCP flows crossing route-domain boundaries might fail.
1026605-4	4-Minor		When bigd.mgmtroutecheck is enabled monitor probes may be denied for non-mgmt routes
1024761-3	4-Minor		HTTP adds Transfer-Encoding and terminating chunk to responses that cannot have a body
1016049-4	4-Minor		EDNS query with CSUBNET dropped by protocol inspection
1015793-2	4-Minor		Length value returned by TCP::payload is signed and can appear negative
1015117-3	4-Minor		Headers are corrupted during modification/insertion if a mix of end-of-line markers <CRLF> and <LF> are used
1013937-2	4-Minor		In-TMM HTTP and HTTPS monitors require RFC-compliant send strings to work.
1011889-4	4-Minor		The BIG-IP system does not handle DHCPv6 fragmented traffic properly
1005109-2	4-Minor		TMM crashes when changing traffic-group on IPv6 link-local address
1004953-3	4-Minor		HTTP does not fall back to HTTP/1.1★
1002945-2	4-Minor		Some connections are dropped on chained IPv6 to IPv4 virtual servers.
979213-2	5-Cosmetic		Spurious spikes are visible in Throughput(bits) and Throughput(packets) performance graphs following a restart of TMM.
968581-2	5-Cosmetic		TMSH option max-response for "show /ltm profile ramcache" command may not comply with its description
926085-1	5-Cosmetic		GUI: Node/port monitor test not possible in the GUI, but works in tmsh
898929-4	5-Cosmetic		Tmm might crash when ASM, AVR, and pool connection queuing are in use
897437-5	5-Cosmetic		First retransmission might happen after syn-rto-base instead of minimum-rto.
873249-1	5-Cosmetic		Switching from fast_merge to slow_merge can result in incorrect tmm stats
755061-3	5-Cosmetic		iRule audit logs may be written to separate files

Global Traffic Manager (DNS) Issues

ID Number	Severity	Solution Article(s)	Description
933405-2	1-Blocking	K34257075	Zonerunner GUI hangs when attempting to list Resource Records
993921-4	2-Critical		TMM SIGSEGV
940733-3	2-Critical	K29290121	Downgrading a FIPS-enabled BIG-IP system or running big3d_install results in a system halt★
931149-1	2-Critical		Some RESOLV::lookup queries, including PTR lookups for RFC1918 addresses, return empty strings
887681-3	2-Critical		Tmm SIGSEGV in rrset_array_lock,services/cache/rrset.c
744743-2	2-Critical		Rolling DNSSEC Keys may stop generating after BIG-IP restart
705869-3	2-Critical		TMM crashes as a result of repeated loads of the GEOIP database
264701-5	2-Critical	K10066	GTM: zrd exits on error from bind about .jnl file error (Formerly CR 68608)
1031945-3	2-Critical		DNS cache configured and tmm stuck in 'not ready' state indefinitely after TMM restart or reboot★
1027657-3	2-Critical		Monitor scheduling is sometimes inconsistent for "require M from N" monitor rules.
1011433-3	2-Critical		Heap allocation failure would cause tmm core in resolver_deprecated_wire2result
1010617-3	2-Critical		String operation against DNS resource records cause tmm memory corruption
1009037-3	2-Critical		Tcl resume on invalid connection flow can cause tmm crash
994221-3	3-Major		ZoneRunner returns error 'Resolver returned no such record'
990929-3	3-Major		Status of GTM monitor instance is constantly flapping
987709-4	3-Major		Static target string as CNAME pool member might cause config load failure if wide IP with same name exists in another partition
977625-3	3-Major		GTM persistence records linger in tmm
973341-2	3-Major		Customized device certs will break scripts relying on /config/httpd/conf/ssl.crt/server.crt
969553-2	3-Major		A DNS Cache (or Network DNS Resolver) returns SERVFAIL to some queries.
967737-2	3-Major		DNS Express: SOA stops showing up in statistics from second zone transfer
966461-6	3-Major		Tmm leaks memory after each DNSSEC query when netHSM is not connected
965053-3	3-Major		[Regression of ID787881 & ID761032] DNSX fails to sign zone transfer using tsig key after failure
958325-1	3-Major		Updating DNS pool monitor via transaction leaves dangling monitor_rule in MCP DB
958157-3	3-Major		Hash collisions in fastDNS packet processing
940469-4	3-Major		Unsupported option in /etc/resolv.conf causes failure to sync DNS Zone configuration
939941-1	3-Major		Monitor parameter not found error
936777-2	3-Major		Old local config is synced to other devices in the sync group.
936417-3	3-Major		DNS/GTM daemon big3d does not accept ECDH or DH ciphers
936361-1	3-Major		IPv6-based bind (named) views do not work
935945-1	3-Major		GTM HTTP/HTTPS monitors cannot be modified via GUI
935249-2	3-Major		GTM virtual servers have the wrong status
920817-6	3-Major		DNS Resource Records can be lost in certain circumstances
918693-4	3-Major		Wide IP alias validation error during sync or config load
913917-2	3-Major		Unable to save UCS
912761-2	3-Major		Link throughput statistics are different
911241-6	3-Major		The iqsyncer utility leaks memory for large bigip_gtm.conf file when log.gtm.level is set to debug
908829-1	3-Major		The iqsyncer utility may not write the core file for system signals
908801-1	3-Major		SELinux policies may prevent from iqsh/iqsyncer dumping core
903521-2	3-Major		TMM fails to sign responses from BIND when BIND has 'dnssec-enable no'
899253-6	3-Major		[GUI] GTM wideip-pool-manage in GUI fails when tens of thousands of pools exist
894081-2	3-Major		The Wide IP members view in the WebUI may report the incorrect status for a virtual server.
887921-1	3-Major		iRule command “RESOLVER::name_lookup” returns null for responses more than 512 bytes
880125-5	3-Major		WideIP (A) created together with aliases (CNAME) causes missing A records in ZoneRunner
879301-1	3-Major		When importing a BIND zone file, SRV/DNAME/NAPTR RRs do not have correct $ORIGIN appended
876677-1	3-Major		When running a debug version of TMM, an assertion may be triggered due to and expired DNS lookup
874221-1	3-Major		DNS response recursion desired (rd) flag does not match DNS query when using iRule command DNS::header rd
872037-2	3-Major		DNS::header rd does not set the Recursion desired
862949-3	3-Major		ZoneRunner GUI is unable to display CAA records
847105-2	3-Major		The bigip_gtm.conf is reverted to default after rebooting with license expired★
821589-1	3-Major		DNSSEC does not insert NSEC3 records for NXDOMAIN responses
813221-5	3-Major		Autoconf continually changes a virtual IP object when virtual IP/port on LTM is not in sync
795633-2	3-Major		GUI and REST API unable to add virtual servers containing a space in the name to a pool
779185-2	3-Major		Forward zone deleted when wideip updated
774225-4	3-Major		mcpd can get in restart loop if making changes to DNSSEC key on other GTM while the primary GTM is rebooting
760615-6	3-Major		Virtual Server discovery may not work after a GTM device is removed from the sync group
757464-7	3-Major		DNS Validating Resolver Cache 'Key' Cache records not deleted correctly when using TMSH command to delete the record
739553-5	3-Major		Setting large number for Wide IP Persistence TTL breaks Wide IP persistence
718230-8	3-Major		Attaching a BIG-IP monitor type to a server with already defined virtual servers is not prevented
716701-4	3-Major		In iControl REST: Unable to create Topology when STATE name contains space
1044873-2	3-Major		Deleted GTM link is not removed from virtual server object and causes load failure.
1041889-1	3-Major		RRSIG missing for CNAME with RDATA in different zone
1041801-2	3-Major		TMM crashes when handling Network DNS resolver Traffic.
1041625-3	3-Major		Virtual server flapping when the active and standby devices have different configuration.
1040153-3	3-Major		Topology region returns narrowest scope netmask without matching
1039553-2	3-Major		Non-200 HTTP status codes fail to be matched by GTM HTTP(S) monitors
1039205	3-Major		DNSSEC key stored on netHSM fails to generate if the key name length is > 24
1033897-1	3-Major		DNSSEC keys generated independently are still in use after GTM sync
1030237-2	3-Major		Zxfrd core and continual restart when out of configured space
1026621-2	3-Major		DNS cache resolver could not connect to remote DNS server with snatpool if multiple routes exist
1024905-2	3-Major		GTM monitor times out if monitoring a virtual server with translation address
1024553-2	3-Major		GTM Pool member set to monitor type "none" results in big3d: timed out
1021417-3	3-Major		Modifying GTM pool members with replace-all-with results in pool members with order 0
1021061-3	3-Major		Config fails to load for large config on platform with Platform FIPS license enabled
1020337-1	3-Major		DNS msg_ObjType can cause buffer overrun due to lack of NUL terminator
1018613-3	3-Major		Modify wideip pools with replace-all-with results pools with same order 0
1012061-3	3-Major		Link Controller auto-discovery does not remove deleted virtual servers
1011285-2	3-Major		The iControl REST API no longer accepts an empty 'lastResortPool' property for wide IP objects.
1001101-3	3-Major		Cannot update/display GTM/DNS listener route advertisement correctly
996261-3	4-Minor		Zrd in restart loop with empty named.conf
995369-3	4-Minor		DNSSEC manual key created with other algorithms ends up using RSA/SHA1 algorithm
959613-2	4-Minor		SIP/HTTPS monitor attached to generic-host virtual server and pool shows 'blank' reason
947217-5	4-Minor		Fix of ID722682 prevents GTM config load when the virtual server name contains a colon★
889801-1	4-Minor		Total Responses in DNS Cache stats does not increment when an iRule suspending command is present under DNS_RESPONSE.
886145-2	4-Minor		The 'Reconnect' and 'Reconnect All' buttons do not work if reached via a particular section of the DNS GUI.
885869-2	4-Minor		Incorrect time used with iQuery SSL certificates utilizing GenericTime instead of UTCTime
839361-6	4-Minor		iRule 'drop' command does not drop packets when used in DNS_RESPONSE
822393-3	4-Minor		Prober pool selected on server or data center not being displayed after selection in Internet Explorer
816277-1	4-Minor		Extremely long nameserver name causes GUI Error
808913-2	4-Minor		Big3d cannot log the full XML buffer data
792813-1	4-Minor		The iRule command 'DNS::edns0 subnet address' returns an empty string when subnet info is not received
790113-6	4-Minor		Cannot remove all wide IPs from GTM distributed application via iControl REST
708680-3	4-Minor		TMUI is unable to change the Alias Address of DNS/GTM Monitors
464708-2	4-Minor		DNS logging does not support Splunk format log
1026813-5	4-Minor		LCD IP address is missing from /etc/hosts on iSeries
1014761-1	4-Minor		[GTM][GUI] Not able to enable/disable pool member from pool member property page
1008233-3	4-Minor		The gtm_add command fails but reports no error
985001-3	5-Cosmetic		Taiwan, Hong Kong, and Macau Are Defined As Countries in DNS/GTM Topology Definition

Application Security Manager Issues

ID Number	Severity	Solution Article(s)	Description
993613-5	2-Critical		Device fails to request full sync
956889-2	2-Critical		/var fills up very quickly
912149-5	2-Critical		ASM sync failure with Cgc::Channel error 'Failed to send a message, error:15638476'
887621-2	2-Critical		ASM virtual server names configuration CRC collision is possible
884945-2	2-Critical		Latency reduce in case of empty parameters.
879841-4	2-Critical		Domain cookie same-site option is missing the "None" as value in GUI and rest
865981-1	2-Critical		ASM GUI and REST become unresponsive upon license change
857677-3	2-Critical		Security policy changes are applied automatically after asm process restart
761429-1	2-Critical		TMM core after long run of high volumes of traffic
1015881-3	2-Critical		TMM might crash after configuration failure
995889-2	3-Major		Username/Password JSON elements of login page detected as case sensitive when the policy is configured as case insensitive
987453-1	3-Major		Bot Defense browser verification fails upon iframes of different top-level domains
985205-1	3-Major		Event Log and Traffic Learning screens fail to load request details★
984593-2	3-Major		BD crash
974985-2	3-Major		Dosl7/bot does not ignore non-http traffic even when disabled via iRule DOSL7::disable
974513-2	3-Major		Dropped requests are reported as blocked in Reporting/charts
966633-2	3-Major		Policy entity search with non-ASCII value filter returns no results in REST/GUI in non-UTF-8 policies
966613-4	3-Major		Cannot create XML profile based on WSDL when wsdl contains empty soap:address – getting error ‘Column 'object_uri' cannot be null’
965785-2	3-Major		Active/Standby sync process fails to populate table DCC.HSL_DATA_PROFILES on standby machine
962493-5	3-Major		Request is not logged
962489-5	3-Major		False positive enforcement of parameters with specific configuration
961509-2	3-Major		ASM blocks WebSocket frames with signature matched but Transparent policy
959965-3	3-Major		Asmlogd stops deleting old protobufs
959957-3	3-Major		Asmlogd stops deleting old protobufs
948805-1	3-Major		False positive "Null in Request"
945789-1	3-Major		Live update cannot resolve hostname if ipv6 is configured
943441-2	3-Major		Issues in verification of Bot Defense with F5 Anti-Bot Mobile SDK
937445-1	3-Major		Incorrect signature context logged in remote logger violation details field
937213	3-Major		Virtual Server is not created when a new HTTPS virtual server is defined with a new security policy
932133-2	3-Major		Payloads with large number of elements in XML take a lot of time to process
929005-2	3-Major		TS cookie is set in all responses
926845-5	3-Major		Inactive ASM policies are deleted upon upgrade
923221-4	3-Major		BD does not use all the CPU cores
921697-3	3-Major		Attack signature updates fail to install with Installation Error.★
920149-1	3-Major		Live Update default factory file for Server Technologies cannot be reinstalled
914277-2	3-Major		[ASM - AWS] - Auto Scaling BIG-IP systems overwrite ASU
907025-3	3-Major		Live update error" 'Try to reload page'
904133-1	3-Major		Creating a user-defined signature via iControl REST occasionally fails with a 400 response code
902445-2	3-Major		ASM Policy Event Logging stops working after 'No space in shmem' error disconnection mitigation
898825-2	3-Major		Attack signatures are enforced on excluded headers under some conditions
891181-2	3-Major		Wrong date/time treatment in logs in Turkey/Istambul timezone
890825-2	3-Major		Attack Signatures and Threat Campaigns filter incorrect behaviour
890169-2	3-Major		URLs starting with double slashes might not be loaded when using a Bot Defense Profile.
887265-2	3-Major		BIG-IP systems may fail to come online after upgrade with ASM and VLAN-failsafe configuration★
887261-1	3-Major		JSON schema validation files created from swagger should support "draft-04" only
885765-3	3-Major		ASMConfig Handler undergoes frequent restarts
882377-3	3-Major		ASM Application Security Editor Role User can update/install ASU
876965-2	3-Major		Incorrect reporting by /mgmt/tm/live-update/
871881-2	3-Major		Apply Policy action is not synchronized after making bulk signature changes
867777-3	3-Major		Remote syslog server cannot parse violation detail buffers as UTF-8.
862413-1	3-Major		Broken layout in Threat Campaigns and Brute Force Attacks pages
857633-7	3-Major		Attack Type (SSRF) appears incorrectly in REST result
853989-1	3-Major		DOSL7 Logs breaks CEF connector by populating strings into numeric fields
853565-2	3-Major		VCMP host primary blade reboot causes security policy loss in the VCMP guest primary blade
853269-1	3-Major		Incorrect access privileges to "Policy List" and "Security Policy Configuration" pages in case of complex role user
853177-1	3-Major		'Enforcement Mode' in security policy list is shown without value
852429-1	3-Major		"ASM subsystem error" logged when creating policies
850633-1	3-Major		Policy with % in name cannot be exported
849349-5	3-Major		Adding a new option to disable CSP header modification in bot defense/dosl7 via sys db
849269-1	3-Major		High CPU usage after Inheritance page opened
848921-1	3-Major		Config sync failure when importing a Json policy
848757-1	3-Major		Link between 'API protection profile' and 'Security Policy' is not restored after UCS upload
845933-1	3-Major		Unused parameters remain after modifying the swagger file of a policy
844373-1	3-Major		Learning suggestion details layout broken in some browsers
842013-3	3-Major		ASM Configuration is Lost on License Reactivation★
841285-1	3-Major		Sometimes apply policy is stuck in Applying state
839509-1	3-Major		Incorrect inheritance treatment in Response and Blocking Pages page
839141-1	3-Major		Issue with 'Multiple of' validation of numeric values
837341-1	3-Major		Response and Blocking Pages page: Deception Response pages should not be shown in parent policy
829029-1	3-Major		Adding multiple user-defined Signatures via REST in quick succession may end with duplicate key database error
785873-3	3-Major		ASM should treat 'Authorization: Negotiate TlR' as NTLM
753715-2	3-Major		False positive JSON max array length violation
703678-3	3-Major		Cannot add 'secure' attributes to several ASM cookies
580715-2	3-Major		ASM is not sending 64 KB remote logs over UDP
1045101-3	3-Major		Bd crash in extracting Authorization header, if session awareness is enabled and use APM
1043533-1	3-Major		Unable to pick up the properties of the parameters from audit reports.
1042605-3	3-Major		ASM Critical Warnings during UCS load after upgrade to v15.1.0 or above★
1041149-2	3-Major		Staging of URL does not affect apply value signatures
1037457-2	3-Major		High CPU during specific dos mitigation
1036969-3	3-Major		Chrome sometimes ignores cross-site bot-defense cookies
1033025-2	3-Major		TMM might crash when unsupported bot iRule is used
1033017-4	3-Major		Policy changes learning mode to automatic after upload and sync
1031461-4	3-Major		Session awareness entries aren't mirrored to both sides of an active-active deployment.
1030853-2	3-Major		Route domain IP exception is being treated as trusted (for learning) after being deleted
1029989-2	3-Major		CORS : default port of origin header is set 80, even when the protocol in the header is https
1023889-2	3-Major		HTTP/HTTPS protocol option in storage filter do not suppress WS/WSS server->client message
1020149-2	3-Major		Bot Defense does not support iOS's WKWebView framework
1017557-3	3-Major		ASM Plugin Abort reset for chunked response without proper terminating 0 chunk followed by FIN
1017261-5	3-Major		Configuraton update triggers from MCP to ASM are ignored
1017153-2	3-Major		Asmlogd suddenly deletes all request log protobuf files and records from the database
1014973	3-Major		ASM changed cookie value
1012221-2	3-Major		Message: childInheritanceStatus is not compatible with parentInheritanceStatus★
1011093-3	3-Major		Remote log messages are separated into 2 lines if max_request_size limit falls exactly on \n char.
1010585-2	3-Major		XML profile is created incorrectly from WSDL
1008005	3-Major		Configuration load fails due to BOTDEFENSE_ACTION event in iRule after upgrade★
1006181-1	3-Major		ASM fails to start after upgrade if different ASM policies use login pages with the same name★
1004069-1	3-Major		Brute force attack is detected too soon
994013-2	4-Minor		Modifying bot defense allow list via replace-all-with fails with match-order error
991765-2	4-Minor		Inheritance of staging_period_in_days from policy template
984521-2	4-Minor		Accept-Encoding header is stripped by Bot Defense profile in case of incompatible file extension and a dot in the file name
974409-2	4-Minor		False Positive "Surfing Without Human Interaction"
957321-1	4-Minor		When BIG-IP contains an invalid DNS Resolver, Bot Defense might wrongly classify search engines as malicious
950953-1	4-Minor		Browser Challenges update file cannot be installed after upgrade★
945821-1	4-Minor		Remote logging conditions adjustments
937541-2	4-Minor		Wrong display of signature references in violation details
932893-2	4-Minor		Content profile cannot be updated after redirect from violation details in Request Log
931033-1	4-Minor		Device ID Deletions anomaly might be raised in case of browser/hardware change
923233-1	4-Minor		Incorrect encoding in 'Logout Page' for non-UTF8 security policy
915133-3	4-Minor		Single Page Application can break the page, when hooking is done by the end server application.
906737-3	4-Minor		Error message: 'templates/' is not a directory
905669-2	4-Minor		CSRF token expired message for AJAX calls is displayed incorrectly
893905-2	4-Minor		Wrong redirect from Charts to Requests Log when request status selected in filter
887625-3	4-Minor		Note should be bold back, not red
886865-1	4-Minor		P3P header is added for all browsers, but required only for Internet Explorer
885789-1	4-Minor		Clicking 'Fix Automatically' on PCI Compliance page does not replace non-PCI-compliant-profile with complaint one on HTTP/2 virtual servers
885785-1	4-Minor		Clicking 'Fix Automatically' in PCI Compliance page does not attach a PCI-compliant-profile on HTTP/2 virtual servers
882729-3	4-Minor		Applied Blocking Masks discrepancy between local/remote event log
875373-3	4-Minor		Unable to add domain with leading '.' through webUI, but works with tmsh.
864989-2	4-Minor		Remote logger violation_details field content appears as "N/A" when violations field is not selected.
858445-1	4-Minor		Missing confirmation dialog for apply policy in new policy pages
842265-1	4-Minor		Create policy: trusted IP addresses from template are not shown
841985-5	4-Minor		TSUI GUI stuck for the same session during long actions
807569-2	4-Minor		Requests fail to load when backend server overrides request cookies and Bot Defense is used
765365-2	4-Minor		ASM tries to send response cookies after response headers already forwarded - makes CSRF false positive
759671-2	4-Minor		Unescaped slash in RE2 in user-defined signature should not be allowed
757486-1	4-Minor		Errors in IE11 console appearing with Bot Defense profile
746984-5	4-Minor		False positive evasion violation
1036521-3	4-Minor		TMM crash in certain cases
1035361-2	4-Minor		Illegal cross-origin after successful CAPTCHA
1026277-2	4-Minor		Apply Policy can get ignored in auto-sync setup, while importing/replacing several existing policies with policies that have Policy Builder enabled
1021637-2	4-Minor		In some cases BD enforces CSRF on all URLs, ignoring CSRF URLs
1017149-3	4-Minor		User-defined bot sigs that are created in tmsh don't overlap staged factory bot sigs
1016033-2	4-Minor		Remote logging of WS/WSS shows date_time equal to Unix epoch start time
1005309-2	4-Minor		Additional Tcl variables showing information from the AntiBot Mobile SDK
1005181-2	4-Minor		Bot Defense Logs indicate the mobile debugger is used even when it is not
1003765-1	4-Minor		Authorization header signature triggered even when explicitly disabled
989353-1	5-Cosmetic		Block column of policy signature list always shows a checkmark, regardless of policy enforcement mode
1037189	5-Cosmetic		Invalid values in long request buffer size in umu stats
1011045-1	5-Cosmetic		GUI does not reflect 'Fully Automatic' state , which is substate of Automatic learning mode.

Application Visibility and Reporting Issues

ID Number	Severity	Solution Article(s)	Description
1009093-1	2-Critical		GUI widgets pages are not functioning correctly
932189-3	3-Major		Incorrect BD Swap Size units on ASM Resources chart
932137-5	3-Major		AVR data might be restored from non-relevant files in /shared/avr_afm partition during upgrade
922105-3	3-Major		Avrd core when connection to BIG-IQ data collection device is not available
898333-2	3-Major		Unable to collect statistics from BIG-IP system after BIG-IQ restart
852577-5	3-Major		[AVR] Analytic goodput graph between different time period has big discrepancy
832805-2	3-Major		AVR should make sure file permissions are correct (tmstat_tables.xml)
808801-4	3-Major		AVRD crash when configured to send data externally
787677-5	3-Major		AVRD stays at 100% CPU constantly on some systems
1040477	3-Major		Drop-Down menu shows white blank items in Reporting : DoS : URL Latencies
1038913-3	3-Major		The weekly ASM reporting "Security ›› Reporting : Application : Charts" filter "View By" as IP Intelligence shows only the "Safe" category
1036601	3-Major		Discrepancies in the number of requests with violations in ASM reports
1035133-3	3-Major		Statistics data are partially missing in various BIG-IQ graphs under "Monitoring" tab
950305-2	4-Minor		Analytics data not displayed for Pool Names
948113-3	4-Minor		User-defined report scheduling fails
915005-1	4-Minor		AVR core files have unclear names
910777-3	4-Minor		Sending ASM report via AWS SES failed duo to wrong content type
930217-3	5-Cosmetic		Zone colors in ASM swap usage graph are incorrect

Access Policy Manager Issues

ID Number	Severity	Solution Article(s)	Description
349706-2	0-Unspecified		NetworkAccess assigns 1.1.1.1 address to remote ppp endpoint APM VPN
990073	2-Critical		BIG-IP software v13.1.3.6, v14.1.4, v15.1.2.1, v16.0.1.1 or later require APM Clients 7.1.8.5, 7.1.9.8, or 7.2.1.1★
965837-2	2-Critical		When BIG-IP is configured with PingAccess profile, tmm can core when there is an active connection
965777-2	2-Critical		Per-request policy authentication becomes unresponsive
904441-2	2-Critical		APM vs_score for GTM-APM load balancing is not calculated correctly
903257-1	2-Critical		GUI issues for Access :: Profiles/Policies : Customization : General Customization or Advanced Customization
883889-3	2-Critical		Tmm might crash when under memory pressure
882545-1	2-Critical		Multiple rate-limiting agents sharing the same rate-limiting key config may not function properly
880073-1	2-Critical		Memory leak on every DNS query made for "HTTP Connector" agent
860617-3	2-Critical		Radius sever pool without attaching the load balancing algorithm will result into core
856909-3	2-Critical		Apmd core occurs when it fails to retrieve agentInfo
817137-1	2-Critical		SSO setting for Portal Access resources in webtop sections cannot be updated.
756540-1	2-Critical		End-user may not be able to connect to VPN.
1024029-3	2-Critical		TMM may crash when processing traffic with per-session APM Access Policy
1020349-2	2-Critical		APM daemon may crash if CRLDP agent cannot find a certificate to validate CRL
1007869-2	2-Critical		Upgrade from v14.1.x to v15.1.2.1 or later fails for app-tunnel, RDP and config migration★
1006893-2	2-Critical		Use of ACCESS::oauth after ACCESS::session create/delete may result in TMM core
998473-2	3-Major		NTLM Authentication fails with 'RPC Fault received' error and return code: 0xc0000001 (STATUS_UNSUCCESSFUL)
997761-2	3-Major		Subsessionlist entries leak if there is no RADIUS accounting agent in policy
993457-2	3-Major		TMM core with ACCESS::policy evaluate iRule
973673-1	3-Major		CPU spikes when the LDAP operational timeout is set to 180 seconds
969317-3	3-Major		"Restrict to Single Client IP" option is ignored for vmware VDI
964037	3-Major		Error: Exception response while loading properties from server
956645-2	3-Major		Per-request policy execution may timeout.
949477-1	3-Major		NTLM RPC exception: Failed to verify checksum of the packet
949105-2	3-Major		Error log seen on Category Lookup SNI requests for same connection
944029-1	3-Major		Support challenge response agent to handle Access-Challenge when Logon agent is not in policy
942729-2	3-Major		Export of big Access Policy config from GUI can fail
933129-2	3-Major		Portal Access resources are visible when they should not be
932213-2	3-Major		Local user db not synced to standby device when it is comes online after forced offline state
926973-1	3-Major		APM / OAuth issue with larger JWT validation
924697-2	3-Major		VDI data plane performance degraded during frequent session statistic updates
920541-3	3-Major		Incorrect values in 'Class Attribute' in Radius-Acct STOP request
918717-2	3-Major		Exception at rewritten Element.innerHTML='<a href></a>'
918053-1	3-Major		[Win][EdgeClient] 'Enable Always Connected mode' is checked for all connectivity profiles with same Parent profile.
915509-1	3-Major		RADIUS Access-Reject Reply-Message should be printed on logon page if 'show extended error' is true
907873-2	3-Major		Authentication tab is missing in VPE for RDG-RAP Access Policy type
903501-2	3-Major		VPN Tunnel establishment fails with some ipv6 address
892861-3	3-Major		Cannot configure aaa OAuth provider - invalid x509 file
891613-1	3-Major		RDP resource with user-defined address cannot be launched from webtop with modern customization
883841-1	3-Major		APM now displays icons of all sizes what Horizon VCS supports.
848673-1	3-Major		Portal Access message event has wrong origin if message originates from split tunneled frame
842149-2	3-Major		Verified Accept for SSL Orchestrator
835285-1	3-Major		Client browser traffic through APM SWG transparent proxy using captive portal might get reset.
828761-1	3-Major		APM OAuth - Auth Server attached iRule works inconsistently
827393-2	3-Major		In rare cases tmm crash is observed when using APM as RDG proxy.
806809-2	3-Major		JWT Claim value without quotes is invalid
788473-3	3-Major		Email sent from APM is not readable in some languages
752077-1	3-Major		Kerberos replay cache leaks file descriptors
744316-6	3-Major		Config sync of APM policy fails with Cannot update_indexes validation error.
738547-4	3-Major		SAML Sax Parser returns error when importing metadata file that contains certain UTF-8 encoded characters other than ASCII
653210-3	3-Major		Rare resets during the login process
597955-3	3-Major		APM can generate seemingly spurious error log messages
470916-3	3-Major		Using native View clients, cannot launch desktops and applications from multiple VMware back-ends
1043233-1	3-Major		Export of large access policy configuration from ng_export CLI
1042505-2	3-Major		Session variable "session.user.agent" does not get populated for edge clients
1041989-3	3-Major		APM Portal Access does not add automatically the / after the URL encoded (after the '$$'), Redirect breaks
1039725-2	3-Major		Reverse proxy traffic fails when a per-request policy is attached to a virtual server.
1037877-2	3-Major		OAuth Claim display order incorrect in VPE
1024437-3	3-Major		Urldb index building fails to open index temp file
1022493-2	3-Major		Slow file descriptor leak in urldbmgrd (sockets open over time)
1021485-2	3-Major		VDI desktops and apps freeze with Vmware and Citrix intermittently
1020561-1	3-Major		Session memory increases over time due to db_access_set_accessinfo can leak sresult key/data in error case
1018877-1	3-Major		Subsession variable values mixing between sessions
1017233-1	3-Major		APM uses wrong session key when iRule for ActiveSync is used resulting in passwords corruption
1010597-2	3-Major		Traffic disruption when virtual server is assigned to a non-default route domain★
1007677-1	3-Major		Artifact resolution on SAML IdP fails with error 'SAML SSO: Cannot find SP connector'
1007629-1	3-Major		APM policy configured with many ACL policies can create APM memory pressure
1006509	3-Major		TMM memory leak★
1002557-2	3-Major		Tcl free object list growth
1002413-1	3-Major		Websso puts quotation marks around non-string claim type 'custom' values
1001337-1	3-Major		Cannot read single sign-on configuration from GUI when logged in as guest
992533	4-Minor		HTML meta tag URL not rewritten when received under single quotes (' ')
977425	4-Minor		APM - nlad & eca restarting in loop after upgrade★
952801	4-Minor		Changing access policy from multi-domain to single domain does not send domain cookies
949957	4-Minor		RDP: Username is pre-filled with f5_apm* string after clicking on webtop resource on Mobile Clients (iOS & Android)
944093-2	4-Minor		Maximum remaining session's time on user's webtop can flip/flop
943033-2	4-Minor		APM PRP LDAP Group Lookup agent has a syntax error in built in VPE expression
942965-2	4-Minor		Local users database can sometimes take more than 5 minutes to sync to the standby device
886841-1	4-Minor		Allow LDAP Query and HTTP Connector for API Protection policies
872105	4-Minor		APM Hosted Content feature incorrectly guesses content type for CSS files
869541-2	4-Minor		Series of unexpected <aborted> requests to same URL
867705-4	4-Minor		URL for IFRAME element may not be normalized in some cases
866953-5	4-Minor		Portal Access: F5_Inflate_onclick wrapper functionality needs refining
848217-4	4-Minor		Portal Access: default port encoded in rewritten url, need to be removed from host header in request to backend
847109-1	4-Minor		Very large policies could have problems with re-import
840257-4	4-Minor		Portal Access: HTML iframe sandbox attribute is not supported
840249-2	4-Minor		With BIG-IP as a SAML IdP, important diagnostic information is not logged
819233-3	4-Minor		Ldbutil utility ignores '--instance' option if '--list' option is specified
712542-5	4-Minor		Network Access client caches the response for /pre/config.php
707294-4	4-Minor		When BIG-IP as OAuth AS has missing OAuth Profile in the Access profile, the error log is not clear
547947-1	4-Minor		Feeding empty username and password to the Logon Page followed by RadiusAuthAgent shows the session as Logged out
438684-1	4-Minor		Access Profile Type of SSO requires SSO configuration at create time
1041985-3	4-Minor		TMM memory utilization increases after upgrade★
1040829-3	4-Minor		Errno=(Invalid cross-device link) after SCF merge
1022973	4-Minor		Sessiondb entries related to Oauth module not cleaned up in certain conditions
1004845-2	4-Minor		Accessing attribute using attributeNode value does not work with Portal Access
1004077-2	4-Minor		When configuring from VPE, audit logs from mcp records the user as admin, even if done by another user

WebAccelerator Issues

ID Number	Severity	Solution Article(s)	Description
900825	3-Major		WAM image optimization can leak entity reference when demoting to unoptimized image
890573	3-Major		BigDB variable wam.cache.smallobject.threshold may not pickup its value on restart
890401	3-Major		Restore correct handling of small object when conditions to change cache type is satisfied
489960	4-Minor		Memory type stats is incorrect

Wan Optimization Manager Issues

ID Number	Severity	Solution Article(s)	Description
863601-3	2-Critical		Panic in TMM due to internal mirroring interactions

Service Provider Issues

ID Number	Severity	Solution Article(s)	Description
839389-1	2-Critical		TMM can crash when connecting to IVS under extreme overload
1029397-1	2-Critical		Tmm may crash with SIP-ALG deployment in a particular race condition
1012721-1	2-Critical		Tmm may crash with SIP-ALG deployment in a particular race condition
1012533-1	2-Critical		`HTTP2::disable serverside` can cause cores
1007113-1	2-Critical		Pool member goes DOWN if the time difference between SCTP INIT and SCTP ABORT is less than two seconds
1007109-1	2-Critical		Flowmap entry is deleted before updating its timeout to INDEFINITE
970341	3-Major		Messages are not forwarded when "disable-parser" is set to "NO" in Generic Message Profile
921441-2	3-Major		MR_INGRESS iRules that change diameter messages corrupt diam_msg
917637-2	3-Major		Tmm crash with ICAP filter
908477-2	3-Major		Request-adapt plus request-logging causes HTTP double-chunking in an ICAP request
895801-2	3-Major		Changing an MRF transport-config's TCP profile does not take effect until TMM is restarted
831105-2	3-Major		Session timeout in diadb entry is updated to 180 on unsuccessful transaction
817369-2	3-Major		TCP, UDP, and SCTP proxy converts to GEO proxy when georedundancy profile is attached with virtual server.
755033-1	3-Major		Dynamic Routes stats row does not appear in the UI
753501-5	3-Major		iRule commands (such as relate_server) do not work with MRP SIP
749528-8	3-Major		IVS connection on VLAN with no floating self-IP can select wrong self-IP for the source-address using SNAT automap
748355-5	3-Major		MRF SIP curr_pending_calls statistic can show negative values.
1039329-1	3-Major		MRF per peer mode is not working in vCMP guest.
1038057-1	3-Major		Unable to add a serverssl profile into a virtual server containing a FIX profile
1025529-1	3-Major		TMM generates core when iRule executes a nexthop command and SIP traffic is sent
1008169-3	3-Major		BIG-IP systems disconnect the DIAMETER transport connection if it receives an answer message without a Result-Code AVP
862337-2	4-Minor		Message Routing Diameter profile fails to forward messages with zero length AVPs
844169-1	4-Minor		TMSH context-sensitive help for diameter session profile is missing some descriptions
794889-1	4-Minor		Pool member state force-offline processes persistent connections in Diameter.
1018285-1	4-Minor		MRF DIAMETER to select automatic removal of a persistence entry on completion of a transaction
1013297	4-Minor		MRF persistence records are not removed with "DIAMETER::persist reset" in DIAMETER_INGRESS
1003633-3	4-Minor		There might be wrong memory handling when message routing feature is used

Advanced Firewall Manager Issues

ID Number	Severity	Solution Article(s)	Description
965897-2	2-Critical		Disruption of mcpd with a segmentation fault during config sync
964989-2	2-Critical		AFM DOS half-open does not handle wildcard virtual servers properly.
850117-2	2-Critical		Autodosd crash after assigning dos profile with custom signatures to a virtual server
1040685-3	2-Critical		Core file on blade slot2 after reboot (TMM SIGSEGV in pktclass_classifier)
1033781	2-Critical		IP Reputation database sync fails when DB variable iprep.protocol is set to auto-detect
998701-2	3-Major		Active_zombie_port_blocks counter from fw_lsn_pool_pba_stat stats may reach unrealistically large value.
997781	3-Major		Support for DSLITE event logging for field format and user format
997433	3-Major		When dos.logging interval is greater than 1, the log statistics are not accumulated
997429	3-Major		When (DoS Detection threshold = DoS Mitigation threshold) for a vector, logging is erratic when hardware offload is enabled
997169	3-Major		AFM rule not triggered
995433	3-Major		IPv6 truncated in /var/log/ltm when writing PPTP log information from PPTP_ALG in CGNAT
993269-1	3-Major		DoS timestamp cookies are incompatible with FastL4 TCP timestamp rewrite option
990461-3	3-Major		Per virtual server SYN cookie threshold is not preserved or converted during a software upgrade★
987133-2	3-Major		Non-EDNS response with RCODE FORMERR are blocked by dns-qdcount-limit vector.
980593	3-Major		LSN logging stats are always 0 for log_attempts and log_failures in tmctl fw_lsn_log_stat table
976621-3	3-Major		SIP ALG not processing IPv6 in NAT64 UDP
968953-3	3-Major		Unnecessary authorization header added in the response for an IP intelligence feed list request
964625-3	3-Major		Improper processing of firewall-rule metadata
959609	3-Major		Autodiscd daemon keeps crashing
953425-3	3-Major		Hardware syncookie mode not cleared when changing dos-device-vector enforcement
952521-2	3-Major		Memory allocation error while creating an address list with a large range of IPv6 addresses★
935769-3	3-Major		Upgrading / Rebooting BIG-IP with huge address-list configuration takes a long time
929909-2	3-Major		TCP Packets are not dropped in IP Intelligence
926549-1	3-Major		AFM rule loops when 'Send to Virtual' is used with Virtual Server iRule 'LB::reselect'
918905-2	3-Major		PCCD restart loop when using more than 256 FQDN entries in Firewall Rules
915221-4	3-Major		DoS unconditionally logs MCP messages to /var/tmp/mcpd.out
881985-4	3-Major		AFM FQDN rule matching is broken when multiple FQDN's in firewall policies resolve to the same IP address
874797-1	3-Major		Cannot use GUI to configure FQDN in device DNS NXDOMAIN QUERY Vector
867321-3	3-Major		Error: Invalid self IP, the IP address already exists.
857897-2	3-Major		Address and port lists are not searchable within the GUI
844597-4	3-Major		AVR analytics is reporting null domain name for a dns query
818705-1	3-Major		afm_cmi.py daemon can cause very high BIG-IP CPU utilization(>90%)
813969-5	3-Major		Network DoS reporting events as 'not dropped' while in fact, events are dropped
793217-5	3-Major		HW DoS on BIG-IP i2800/i4800 might have up to 10% inaccuracy in mitigation
663946-7	3-Major		The vCMP host may drop IPv4 DNS requests as DoS IPv6 atomic fragments
1042153-1	3-Major		AFM TCP connection issues when tscookie-vlans enabled on server/client side VLAN.
1039993-2	3-Major		AFM NAT Excessive number of logs "Port Block Updated" and "LSN_PB_UPDATE"
1033761	3-Major		BIG-IP consumes excessive CPU when "Log Translation Fields" are enabled in logging policy
1032329	3-Major		A user with role "Firewall Manager" cannot open the Rule List editor in UI
1031909-1	3-Major		NAT policies page unusable due to the page load time
1022613-3	3-Major		Cannot modify Security "global-network" Logging Profile
1021737	3-Major		NAT policy rules are matched regardless of route domains
1020061-1	3-Major		Nested address lists can increase configuration load time
1019557-2	3-Major		Bdosd does not create /var/bdosd/*.json
1012581-3	3-Major		Evidence of hardware syncookies triggered but no stats after tcp half-open is triggered
1003397-1	3-Major		DoS TCP SYN-ACK vector with 'suspicious' set to true impacts MD5 AUTH (BGP) functionality
981145-3	4-Minor		DoS events do not include the attack name for "tcp syn ack flood"
967245-3	4-Minor		Incorrect SPVA counter incremented during Sweep attack on profile
942665-2	4-Minor		Rate limit and threshold configuration checks are inconsistent when applied to Basic DoS Vectors and Bad Actors DoS vectors
935865-5	4-Minor		Rules that share the same name return invalid JSON via REST API
928177-2	4-Minor		Syn-cookies might get enabled when performing multiple software upgrades.
926425-3	4-Minor		Hardware SYN Cookies may not deactivate after the SYN attack ends and valid TCP traffic starts
760355-3	4-Minor		Firewall rule to block ICMP/DHCP from 'required' to 'default'★
1038837-1	4-Minor		Debugd starts with message: Shm segment not found in /etc/ha_table/ha_table.conf.
1037661-1	4-Minor		The packet tester does not validate the route domain after applying the rule list when the protocol is changed from IP to any
1037197	4-Minor		Packet tester UI does not show partition label for VLANs
1033021-1	4-Minor		UI: Partition does not work when clicking through security zones
1022213-3	4-Minor		DDOS: BDOS: Warning messages related to high availability (HA) watchdog seen on system bring up
1021633	4-Minor		DDoS: ICMPv6 packets not reported properly by Virtual DDoS
1003377-1	4-Minor		Disabling DoS TCP SYN-ACK does not clear suspicious event count option
987345-1	5-Cosmetic		Disabling periodic-refresh-log has no effect

Policy Enforcement Manager Issues

ID Number	Severity	Solution Article(s)	Description
829657-3	2-Critical		Possible TMM crash with a multi-IP PEM subscriber configured with more than 16 IP addresses
956013-1	3-Major		System reports{{validation_errors}}
924589-1	3-Major		PEM ephemeral listeners with source-address-translation may not count subscriber data
886653-2	3-Major		Flow lookup on subsequent packets fail during CMP state change.
829653-2	3-Major		Memory leak due to session context not freed
1044901	3-Major		PEM Feature not supported for BIG-IP 15.1.5 on rSeries 5k/10k hardware
1020041-2	3-Major		"Can't process event 16, err: ERR_NOT_FOUND" seen in tmm logs
1015501-4	3-Major		Changes to DHCP Profile are not used by tmm
911585-3	4-Minor		PEM VE does not send CCRi when receiving multiple subscriber requests in a short interval

Carrier-Grade NAT Issues

ID Number	Severity	Solution Article(s)	Description
981689-2	2-Critical		TMM memory leak with IPsec ALG
1019613-3	2-Critical		Unknown subscriber in PBA deployment may cause CPU spike
812705-3	3-Major		'translate-address disabled' setting for LTM virtual server does not have any effect with iRules for NAT64 traffic
1023461	3-Major		Multiple entries for CGNAT when PBA pools allocation is defined: for each request, a new entry is created
1034009-3	4-Minor		CGNAT+Subscriber Discovery - NAT IP with wrong route domain on the CGNAT Log

Fraud Protection Services Issues

ID Number	Severity	Solution Article(s)	Description
1016481-3	3-Major		Special JSON characters in Dom Signatures breaks configuration

Anomaly Detection Services Issues

ID Number	Severity	Solution Article(s)	Description
922665-2	3-Major		The admd process is terminated by watchdog on some heavy load configuration process
1010717-3	3-Major		Default DoS profile creation from tmsh is incorrectly interpreted by DoS profile GUI

Traffic Classification Engine Issues

ID Number	Severity	Solution Article(s)	Description
1033829-1	2-Critical		Unable to load Traffic Classification package
984657-3	3-Major		Sysdb variable not working from tmsh
1013629-3	3-Major		URLCAT: Vulnerability Scan finds many Group/User Read/Write (666/664/662) files
776285-1	4-Minor		No stats returned for 'ltm classification stats urlcat-cloud' component at system startup
686783-2	4-Minor		UlrCat custom database feed list does not work when the URL contains a www prefix or capital letters.

Device Management Issues

ID Number	Severity	Solution Article(s)	Description
663754-2	2-Critical		Modifying the default management port can break internal functionality
942521-7	3-Major		Certificate Managers are unable to move certificates to BIG-IP via REST
929213-1	3-Major		iAppLX packages not rolled forward after BIG-IP upgrade★
880565-1	3-Major		Audit Log: "cmd_data=list cm device recursive" is been generated continuously
835517-1	3-Major		After upgrading BIG-IP software and resetting HA, gossip may show 'UNPAIRED'★
717174-3	3-Major		WebUI shows error: Error getting auth token from login provider★
1029633	3-Major		Intermittent REST api failure when using PUT to modify LTM config objects

iApp Technology Issues

ID Number	Severity	Solution Article(s)	Description
974193-2	3-Major		Error when trying to create a new f5.vmware_view.v1.5.9 iApp
946185-1	3-Major		Unable to view iApp component due to error 'An error has occurred while trying to process your request.'★
842193-1	3-Major		Scriptd coring while running f5.automated_backup script
818069-6	3-Major		GUI hangs when iApp produces error message

Protocol Inspection Issues

ID Number	Severity	Solution Article(s)	Description
778225-5	3-Major		vCMP guests don't have the f5_api_com key and certificate installed when licensed by vCMP host
760740-3	4-Minor		Mysql error is displayed when saving UCS configuration on BIG-IP system when MySQL is not running

Guided Configuration Issues

ID Number	Severity	Solution Article(s)	Description
960133-1	1-Blocking		AGC 8.0 installation failure

In-tmm monitors Issues

ID Number	Severity	Solution Article(s)	Description
944121-1	3-Major		Missing SNI information when using non-default domain https monitor running in tmm mode
1002345-2	3-Major		Transparent DNS monitor does not work after upgrade★
788257-2	4-Minor		Bigd.mgmtroutecheck setting ignored by in-tmm monitors after bigstart restart

Known Issue details for BIG-IP v15.1.x

999881-4 : Tcl command 'string first' not working if payload contains Unicode characters.

Component: Local Traffic Manager

Symptoms:
Tcl command 'string first' returns an incorrect value when Unicode characters are present in the payload.

Conditions:
-- Tcl command 'string first' is used in iRules.
-- Payload contains Unicode characters.

Impact:
Traffic processing with iRules that contains the 'string first' command might not work as expected.

Workaround:
You can use any of the following workarounds:

-- Use iRuleLX.
-- Do not use Unicode characters in the payload.
-- Use a custom Tcl proc to iterate through the string using lindex

999709-4 : iRule 'pool'/'virtual' commands not triggered in CLIENT_ACCEPTED with HTTP/2.

Component: Local Traffic Manager

Symptoms:
The 'pool'/'virtual' iRule commands cause the specified pool to be used directly. However, with HTTP/2, the 'pool'/'virtual' command may fail to execute within the CLIENT_ACCEPTED event. This results in no traffic being sent.

Conditions:
-- A 'pool'/'virtual' command is used under CLIENT_ACCEPTED event.
-- An HTTP/2 profile applied to virtual server.
-- The HTTP/2 protocol in use.
-- HTTP/2 Message Routing is disabled.

Impact:
With HTTP/2 configured, the iRule 'pool'/'virtual' commands fail to execute within the CLIENT_ACCEPTED event, causing no traffic to be sent to the desired pool/virtual.

Workaround:
As a workaround, you may use HTTP_REQUEST event instead of CLIENT_ACCEPTED in iRule syntax.

999669-2 : Some HTTPS monitors are failing after upgrade when config has different SSL option★

Component: Local Traffic Manager

Symptoms:
Some HTTPS monitors are failing after upgrade when the config has different SSL option properties for different monitors.

Conditions:
-- Individual SSL profiles exist for different HTTPS monitors with SSL parameters.
-- A unique server SSL profile is configured for each HTTP monitor (one with cert/key, one without).

Impact:
Some HTTPS monitors fail. Pool is down. Virtual server is down.

Workaround:
None

999125-2 : After changing management IP addresses, devices can be stuck indefinitely in improper Active/Active or Standby/Standby states.

Component: TMOS

Symptoms:
After a device (or multiple devices) in a sync-failover device-group undergoes a management IP change, multiple devices in the group can be stuck indefinitely in improper Active/Active or Standby/Standby failover states.

Conditions:
-- One or more devices belonging to a sync-failover device-group undergo a management IP change.

Impact:
-- The affected units are unable to pass traffic, as they are either both Standby or Active (resulting in either no service availability or IP address conflicts in the network).

Workaround:
If you are planning to change management IP addresses on your devices, consider doing so during a maintenance window, in order to account for the eventuality this issue might occur.

Then, if this issue does occur, you can restore correct system functionality by restarting the sod daemon on all units that had their management IP address changed. To do so, run the following command:

tmsh restart sys service sod

Note: This is a one-time workaround, and the issue may re-occur if the devices undergo further management IP address changes in the future.

999097-3 : SSL::profile may select profile with outdated configuration

Component: Local Traffic Manager

Symptoms:
Under some circumstances, an iRule-selected SSL profile may a send previously configured certificate to the peer.

Conditions:
iRule command SSL::profile is used to select a profile that is not attached to the VIP, and changes have been made in the profile's cert-key-chain field.

Impact:
The TLS client may receive an outdated certificate that does not match with the current configuration, potentially leading to handshake failures.

Workaround:
Avoid making changes to a profile that is actively being used by the iRule command.

999021-3 : IPsec IKEv1 tunnels fail after a config sync from Standby to Active

Component: TMOS

Symptoms:
When racoon (the IKEv1 daemon) sees a tunnel config change, which occurs due to a config sync from the standby device, the change causes tmm and racoon to have conflicting views on the state of that tunnel.

If the IKEv1 tunnel is up at the time of the config change, tmm fails to restart the tunnel.

Conditions:
-- IPsec IKEv1 tunnel in use.
-- Changes made to IPsec IKEv1 tunnel on the Standby BIG-IP device, which are then sync'd to the Active BIG-IP device.
-- And/or a full config sync from the Standby to Active BIG-IP system.

Impact:
IPsec IKEv1 tunnels fail and do not start again.

Workaround:
-- Do not make changes to IPsec IKEv1 tunnels on the Standby device.

-- Avoid full syncs from Standby to Active.

How to recover when the problem occurs:

-- Disable the affected ike-peer and re-enable it.

998957-3 : Mcpd consumes excessive CPU while collecting stats.

Component: TMOS

Symptoms:
Mcpd CPU utilization is 100%.

Conditions:
This can occur when the BIG-IP system has a large number of virtual servers, pools, and pool members for which statistics are being collected.

Impact:
CPU utilization by mcpd is excessive.

Workaround:
None

998945-2 : Load sys config is failing with OOM in MCPD processing

Component: TMOS

Symptoms:
While loading a large config on BIG-IP, mcpd runs at high CPU for a while, then is killed by the OOM killer when MCPD starts increasing rapidly in size.

Conditions:
-- Licensed and provisioned modules: LTM+APM+AFM
-- large number of virtual servers configured and executing "load sys config".

Impact:
Config load fails with std::badalloc with OOM.

998701-2 : Active_zombie_port_blocks counter from fw_lsn_pool_pba_stat stats may reach unrealistically large value.

Component: Advanced Firewall Manager

Symptoms:
Under certain conditions, the active_zombie_port_blocks counter from fw_lsn_pool_pba_stat statistics may reach an unrealistically large value.

Conditions:
-- VIPRION system with more than one blade
-- ASM is provisioned
-- Network address translation is in use
-- Source translation type: Dynamic PAT
-- PAT mode: Port Block Allocation

Impact:
Active_zombie_port_blocks counter indications are incorrect. Otherwise system functionality is unaffected.

Workaround:
None

998649-3 : Log hostname should be consistent when it contains ' . '

Component: TMOS

Symptoms:
Messages that are logged to journald use the configured hostname, while sylog-ng uses the hostname (machine name) and truncates it starting at the first '.' (period). This results in hostnames being inconsistent when it contains '.'; e.g., 'my.hostname' is logged as 'my' by syslog-ng, and 'my.hostname' by journald. This can make it difficult for log analysis tools to work with the log files.

Conditions:
-- Hostname contains a period
-- Viewing log files emitted from journald and from syslog-ng

Impact:
The full hostname is logged for system logs while logs that go directly to syslog-ng use a truncated hostname.

Workaround:
None.

998473-2 : NTLM Authentication fails with 'RPC Fault received' error and return code: 0xc0000001 (STATUS_UNSUCCESSFUL)

Component: Access Policy Manager

Symptoms:
NTLM Authentication fails with 'RPC Fault received' error and return code: 0xc0000001 (STATUS_UNSUCCESSFUL)

Conditions:
1. NTLM front-end authentication is enabled.
2. Active Directory users are subscribed to more than one hundred groups.

Impact:
NTLM authentication for Active Directory users which are subscribed to more than hundred groups will fail.

Workaround:
None

998253-2 : SNI configuration is not sent via HTTPS when in-tmm monitors are disabled

Component: Local Traffic Manager

Symptoms:
The Server Name Indication (SNI) extension is missing on the HTTPS handshake.

Conditions:
-- Global in-tmm monitors are disabled
-- HTTPS monitor traffic

Impact:
The HTTPS client-server handshake occurs without a TLS SNI.

Workaround:
None

997793-2 : Error log: Failed to reset strict operations; disconnecting from mcpd★

Solution Article: K34172543

Component: TMOS

Symptoms:
After rebooting the device you are unable to access the GUI. When checking the ltm logs in the SSH / console, it repeatedly prompts an error:

Failed to reset strict operations; disconnecting from mcpd.

Conditions:
Previous EPSEC packages that are still residing on the system from old BIG-IP versions is installing upon boot. An internal timer can cause the installation to be aborted and all daemons to be restarted via 'bigstart restart'

Impact:
Mcpd fails to fully load and the device fails to come up fully, and it cannot pass traffic.

Workaround:
1. Stop the overdog daemon first by issuing the command:
systemctl stop overdog

2. Restart all services by issuing the command:
bigstart restart

3. Wait for 10 to 20 mins until EPSEC packages are successfully installed and mcpd successfully starts.

997781 : Support for DSLITE event logging for field format and user format

Component: Advanced Firewall Manager

Symptoms:
NA

Conditions:
NA

Impact:
Though Dslite tunnel src ip and route domain is supported for default mode, the tunnel destination address is not visible.

Workaround:
NA

997761-2 : Subsessionlist entries leak if there is no RADIUS accounting agent in policy

Component: Access Policy Manager

Symptoms:
Subsessionlist entries are not cleaned up when subsessions are deleted. For long-lived main sessions, use cases such as API protection, the number of leaked subsessionlist entries increases over time, resulting in increasing memory consumption. If high availability (HA) is configured, the standby device can experience even more memory pressure when a very large number of subsessionlist entries are sent to it for mirroring.

Conditions:
This issue occurs if the main session is long-lived and there is no RADIUS accounting agent in the policy.

Impact:
TMM may run out of memory and restart. Traffic disrupted while tmm restarts.

Workaround:
None

997561-3 : TMM CPU imbalance with GRE/TB and GRE/MPLS traffic

Component: TMOS

Symptoms:
When handling unidirectional GRE traffic, a lack of inner payload entropy can lead to CPU pinning.

In some circumstances, handling this traffic should not require maintaining state across TMMs.

Conditions:
This occurs with GRE/TB (transparent ethernet bridging) and GRE/MPLS traffic.

Impact:
TMM utilization across CPUs is imbalanced, which can impact overall device performance.

Workaround:
None

997541-3 : Round-robin Disaggregator for hardware and software

Component: TMOS

Symptoms:
GRE tunnel traffic is pinned to one CPU.

Conditions:
GRE traffic is passed through BIG-IP system.

Impact:
Traffic is pinned to one CPU and overall performance is degraded.

Workaround:
None

997433 : When dos.logging interval is greater than 1, the log statistics are not accumulated

Component: Advanced Firewall Manager

Symptoms:
Incorrect DoS statistics may be provide via logs.

Conditions:
DDoS log interval is set to more than 1 second

Impact:
Applications dependent on log provided DoS statistics may be impacted.

Workaround:
Do not change the default log interval value.

997429 : When (DoS Detection threshold = DoS Mitigation threshold) for a vector, logging is erratic when hardware offload is enabled

Component: Advanced Firewall Manager

Symptoms:
Some DoS-related log messages may be missing

Conditions:
-- Static DDoS vector is configured with the same mitigation threshold and detection threshold setpoint.
-- The platform supports Hardware DDoS mitigation and hardware mitigation and hardware mitigation is not disabled.

Impact:
Applications dependent on log frequency may be impacted.

Workaround:
Configure the mitigation limit about 10% over the attack limit.

997313-3 : Unable to create APM policies in a sync-only folder★

Component: TMOS

Symptoms:
Unable to configure an APM policy in a sync-only folder, or the configuration fails to load after an upgrade, with an error message similar to:

-- err mcpd[mcpd_pid]: 01070734:3: Configuration error: Invalid Devicegroup Reference. The customization_group (/Common/sync-only/example_apm_customization) requires customization_source (/Common/standard) to be syncd to the same devices

Conditions:
-- Multiple BIG-IP devices configured in a sync-only device group, but different/non-overlapping failover device groups
-- APM policy being created in a folder or partition associated with sync-only device group.

Impact:
-- Unable to create the access policy.
-- The configuration fails to load and the device remains inoperative.

Workaround:
You can use either of the following strategies to prevent the issue:

--Do not create APM policies in a sync-only folder.

--Disable MCPD device-group reference validation for the sync-only folder, e.g.:
tmsh modify sys folder /Common/sync-only no-ref-check true
tmsh save sys config

997169 : AFM rule not triggered

Component: Advanced Firewall Manager

Symptoms:
An AFM rule is not triggered when it should be.

Conditions:
-- Source and destination zone configured
-- A gateway pool is used in the route

Impact:
A firewall rule is not triggered and the default deny rule is used.

Workaround:
Alter the route to use an IP address and not a pool.

996649-4 : Improper handling of DHCP flows leading to orphaned server-side connections

Component: Local Traffic Manager

Symptoms:
When there are multiple client-side flows tied to a single server-side DHCP flow, timeout handling on the client-side flows is incorrect and might lead to a server-side flow getting orphaned. This results in traffic from the server not making its way back to the client.

Conditions:
Regular DHCP virtual server in use.

Impact:
Traffic is not passed to the client.

Workaround:
None.

996261-3 : Zrd in restart loop with empty named.conf

Component: Global Traffic Manager (DNS)

Symptoms:
The zrd process enters a restart loop:
logger[20015]: Re-starting zrd

Conditions:
This occurs when /var/named/config/named.conf is empty.

Impact:
The zrd process enters a restart loop. If the device is in a sync group, zrd enters a restart loop on all devices.

Workaround:
Restore content to the named.conf file.

996001-1 : AVR Inspection Dashboard 'Last Month' does not show all data points

Component: TMOS

Symptoms:
A daily-based report (report with resolution of one day in each data-point) can be provided to only request with up-to 30 days. A request with 31 days shows only 2 entries.

Conditions:
This occurs when generating a 'Last Month' report for a month that contains 31 days of data.

Impact:
AVR Inspection Dashboard displays less data than expected: 2 points instead of 31 points.

Workaround:
None

995889-2 : Username/Password JSON elements of login page detected as case sensitive when the policy is configured as case insensitive

Component: Application Security Manager

Symptoms:
A JSON element of a page behaves in a case-sensitive manner even if the policy is configured as case insensitive.

Conditions:
- Using JSON in a page
- Authentication type is json/ajax
- The policy is configured case-insensitive
- JSON element seen in a request has uppercase letter(s)

Impact:
Case-insensitive configuration fails to detect uppercase JSON elements in a page. This may cause, for example, brute force protection to not trigger.

Workaround:
None

995605-1 : PVA accelerated traffic does not update route domain stats

Component: TMOS

Symptoms:
PVA accelerated traffic does not update route domain stats

Conditions:
-- PVA accelerated traffic.
-- Viewing the route domain stats.

Impact:
The route domain stats may be inaccurate

Workaround:
Use the virtual server stats or ifc_stats instead.

995433 : IPv6 truncated in /var/log/ltm when writing PPTP log information from PPTP_ALG in CGNAT

Component: Advanced Firewall Manager

Symptoms:
The PPTP log entries for NAT64 traffic have a truncated IPv6 address.

Conditions:
This is encountered when viewing PPTP log entries.

Impact:
IPV6 addresses in PPTP logs are truncated.

Workaround:
None

995369-3 : DNSSEC manual key created with other algorithms ends up using RSA/SHA1 algorithm

Component: Global Traffic Manager (DNS)

Symptoms:
Generated DNSSEC keys always use RSA/SHA1 algorithm.

Conditions:
DNSSEC keys are generated with manual key management method.

Impact:
You are unable to create DNSSEC keys with other algorithms.

Workaround:
Choose automatic key management method.

995201-4 : IP fragments for the same flow are dropped if they are received on different VLANs and route domains.

Component: Local Traffic Manager

Symptoms:
When duplicate IP fragments for the same flow (same connection tuple and flow ID) are simultaneously received on different VLANs or route domains, IP datagram reassembly fails.

Conditions:
-- Multicast traffic where identical fragments arrive on two different VLANs.
-- IP fragments for the same flow are received on different VLANs.
-- Alternatively, IP fragments for the same flow are received on different route domains.

Impact:
IP fragments that fail reassembly are dropped.

Workaround:
None

995097-3 : Certain management-dhcp supersede options fail to restore correctly when the configuration is reloaded from a file.

Component: TMOS

Symptoms:
After reloading the configuration from a file, management-dhcp supersede options whose values contained a double quote character (") no longer contain the character.

For instance, after reloading the configuration, the following section:

# tmsh list sys management-dhcp sys-mgmt-dhcp-config supersede-options
sys management-dhcp sys-mgmt-dhcp-config {
    supersede-options {
        domain-name {
            value { "example.com" }
        }
        domain-name-servers {
            value { 8.8.8.8 }
        }
        domain-search {
            value { "example.com" }
        }
    }
}

Becomes:

# tmsh list sys management-dhcp sys-mgmt-dhcp-config supersede-options
sys management-dhcp sys-mgmt-dhcp-config {
    supersede-options {
        domain-name {
            value { example.com }
        }
        domain-name-servers {
            value { 8.8.8.8 }
        }
        domain-search {
            value { example.com }
        }
    }
}

This also affects the configuration file for the dhclient/dhclient6 daemons that the system automatically generates from the aforementioned config stanza.

Conditions:
This issue occurs when the following statements apply:
--- The values of management-dhcp supersede options contain double quote characters.
--- The configuration is reloaded from file.

The BIG-IP system reloads the configuration from file in the following cases:
-- When you issue the 'tmsh load sys config' command.
-- After an upgrade, as the mcpd binary database does not exist yet.
-- When troubleshooting requires removing the mcpd binary database and reloading the config from file.
-- When the system is relicensed.
-- When system provisioning changes.
-- When a UCS/SCF archive is restored.
-- When someone merges in config from file or terminal (but this is limited to the actual contents being merged in, not the entire configuration).

Impact:
The in-memory mcpd configuration relating to management-dhcp supersede options is incorrect.

The /etc/dhclient.conf file that is automatically generated contains incorrect syntax.

As a result of this, the dhclient/dhclient6 daemons fail to parse the file and run with an incomplete configuration.

Ultimately, the system does not behave as configured in regard to its management-dhcp configuration.

Workaround:
Reapply the desired management-dhcp supersede-options configuration using the tmsh utility.

For example, to restore the intended in-memory configuration shown under Symptoms, you would run within tmsh:

# modify sys management-dhcp sys-mgmt-dhcp-config supersede-options none
# modify sys management-dhcp sys-mgmt-dhcp-config supersede-options add { domain-search { value add { \"example.com\" } } }
# modify sys management-dhcp sys-mgmt-dhcp-config supersede-options add { domain-name { value add { \"example.com\" } } }
# modify sys management-dhcp sys-mgmt-dhcp-config supersede-options add { domain-name-servers { value add { 8.8.8.8 } } }
# save sys config

On versions earlier than 15.0.0, you must also restart the dhclient/dhclient6 daemons by running:

bigstart restart dhclient dhclient6

Note that the workaround is not permanent and will be invalidated the next time the config is loaded from file again.

994365-3 : Inconsistency in tmsh 'object mode' for some configurations

Component: TMOS

Symptoms:
Tmsh does not support object mode when modifying certain configurations, such as the node configuration. This results in misleading error 'not found' even though the configuration is available.

Conditions:
Modify node config results in error, even though the config is present.

# Node Object 'example' is created successfully
(tmos)# create ltm node example address 1.2.3.4

# On modifying the node 'example', tmsh gives error
(tmos)# modify ltm node example
Data Input Error: node "example" not found

The modify command does work when a property is specified:
(tmos)# modify ltm node example description "Node 1234"

Impact:
Inconsistent tmsh syntax when using 'object mode' for modifying the configuration.

Workaround:
Use 'tmsh modify' commands, or the GUI, to make the required changes without 'entering' the object in tmsh.

994361-3 : Updatecheck script hangs/Multiple updatecheck processes

Component: TMOS

Symptoms:
Multiple updatecheck and 'rpm -qf' processes running simultaneously.

Updatecheck is not functional

Conditions:
Updatecheck is run periodically via a cronjob. Updatecheck runs 'rpm -qf' command.

Impact:
Due to that 'rpm -qf' command hangs. This causes multiple updatecheck and 'rpm -qf' processes. High CPU and memory usage.

The most likely explanation is that rpmdb has gotten corrupted.

Workaround:
To rebuild rpmdb:

1. Halt all running updatecheck and 'rpm -qf' processes.

2. Run these commands:
rm /var/lib/rpm/__db*
rpm --rebuilddb

994305-1 : The version of open-vm-tools included with BIG-IP Virtual Edition is 10.1.5

Component: TMOS

Symptoms:
Features supported in newer versions of open-vm-tools are not available.

Conditions:
This issue may be seen when running in VMware environments.

Impact:
Features that require a later version of open-vm-tools are not available.

Workaround:
None.

994269-2 : Message: 'double flow removal' in LTM log file

Component: Local Traffic Manager

Symptoms:
The LTM log contains messages similar to the following:

Oops @ 0x290cfa0:1129: double flow removal.

Conditions:
FastL4 virtual server with iRule containing the FLOW_INIT command.

Impact:
Memory_usage_stat and tmm/umem_usage_stat might reflect incorrect values under increased traffic load when the underlying double flow removal messages persist continuously on the blades.

Workaround:
None

994221-3 : ZoneRunner returns error 'Resolver returned no such record'

Component: Global Traffic Manager (DNS)

Symptoms:
ZoneRunner returns error 'Resolver returned no such record'.

Conditions:
When trying to retrieve TXT records with single backslash.

Impact:
Not able to manage TXT record.

Workaround:
Use double backslashes to retrieve TXT records.

994081-2 : Traffic may be dropped with an Immediate idle timeout setting.

Component: Local Traffic Manager

Symptoms:
When the idle timeout is set to Immediate, flows may be expired while packets are buffered. Buffered packets are dropped. This can impact iRules and non-L4 virtual servers.

Conditions:
-- Idle timeout set to Immediate.
-- iRules are configured or non-L4 virtual servers are used.

Impact:
Traffic is dropped.

Workaround:
You can use either workaround:

-- Configure an L4 virtual server.

-- Consider removing iRules.

994013-2 : Modifying bot defense allow list via replace-all-with fails with match-order error

Component: Application Security Manager

Symptoms:
An error occurs when modifying the allow list (or in case of 'load sys config verify' with similar configuration):

01b90026:3: Bot defense profile (/Common/bot-defense-device-id-generate-before-access) error: match-order should be unique.

Conditions:
-- Either modification via replace-all-with:
tmsh modify security bot-defense profile bot-defense-device-id-generate-before-access whitelist replace-all-with { first_1 { match-order 1 source-address 10.0.0.0/8 url /foo } second_2 { match-order 2 source-address ::/32 url /bar } }

-- Or delete all, add, save and load-verify:
tmsh modify security bot-defense profile bot-defense-device-id-generate-before-access whitelist delete { all }
tmsh modify security bot-defense profile bot-defense-device-id-generate-before-access whitelist add { first_1 { match-order 1 source-address 10.0.0.0/8 url /foo } second_2 {match-order 2 source-address ::/32 url /bar}}
tmsh save sys config
load sys config verify

Impact:
You are unable to add-replace the bot defense allow list configuration

Workaround:
You can use either of the following workarounds:

-- Change match-order of defaults in profile_base.conf to use match-order 3 and up (and load config).
-- Change match-order of custom modify command (to continue with match-order 3 and up).

993921-4 : TMM SIGSEGV

Component: Global Traffic Manager (DNS)

Symptoms:
TMM crashes on SIGSEGV.

Conditions:
This is a rarely occurring issue associated with the iRule command 'pool XXXX member XXXX'.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not use 'pool XXXX member XXXX' iRule command.

993613-5 : Device fails to request full sync

Component: Application Security Manager

Symptoms:
Devices remain out of sync and ASM REST/GUI becomes unresponsive. asm_config_server may create many unique PIDs

Conditions:
-- A manual sync device group is configured and ASM sync is enabled.
-- Sync pushes are typically performed in one direction, and then a sync attempt is made in the opposite direction.

Impact:
-- The device that is meant to receive the config sync never requests or receives it.
-- The devices become unsynchronized which may cause unexpected traffic enforcement or dropped traffic.
-- ASM GUI becomes unresponsive.
-- Large number of asm_config_server processes increases host memory usage

Workaround:
Halting asm_config_server on the stuck device restores the working state and request a new sync.

993517-3 : Loading an upgraded config can result in a file object error in some cases

Component: Local Traffic Manager

Symptoms:
After an upgrade from a version prior to 13.1.0, when loading a configuration that has had an HTTPS monitor in it, if that configuration has not yet been saved, you may see errors like this in the LTM log:

-- 0107134a:3: File object by name (DEFAULT) is missing.

If you run 'tmsh load sys config verify' on this configuration, the system also posts the error on the screen.

Conditions:
-- Upgrading from a version prior to 13.1.0.
-- At least one HTTPS monitor that has the kEDH cipher in its cipherlist.
-- Upgrading to version 13.1.1.4 or later.
-- Loading the configuration (either automatically on startup, or manually).

Impact:
Other than the error message, there is no impact.

Workaround:
After the initial reboot, save the configuration.

993457-2 : TMM core with ACCESS::policy evaluate iRule

Component: Access Policy Manager

Symptoms:
TMM segfaults in packtag_literal_pointer_release() during TCLRULE_CLIENT_CLOSED event attempting a session release.

Conditions:
-- The ACCESS::policy evaluate is still in progress when TCLRULE_CLIENT_CLOSED event is triggered.
-- While the TCLRULE_CLIENT_CLOSED is in process, the ACCESS::policy evaluation completes.

Impact:
This triggers a race condition and causes the tmm crash. Traffic disrupted while tmm restarts.

Workaround:
None

993269-1 : DoS timestamp cookies are incompatible with FastL4 TCP timestamp rewrite option

Component: Advanced Firewall Manager

Symptoms:
Using DoS timestamp cookies together with a FastL4 profile with the timestamp rewrite option enabled might lead to traffic failures.

DoS timestamp cookies might also lead to problems with traffic generated by the Linux host.

Conditions:
-- DoS timestamp cookies are enabled, and either of the following:

-- FastL4 profile with the timestamp rewrite option enabled.
-- Traffic originating from Linux host.

Impact:
Traffic is dropped due to incorrect timestamps.

Workaround:
Disable timestamp cookies on the affected VLAN.

992813-2 : The list of dhcp-options known to mcpd is outdated, leading to the inability to instantiate certain management-dhcp configurations.

Component: TMOS

Symptoms:
The mcpd daemon performs validation of the request-options and supersede-options a BIG-IP administrator specifies via the tmos.sys.management-dhcp endpoint in tmsh.

As the list of dhcp-options known to mcpd is outdated, it is possible you may be returned an error when attempting to configure valid request-options or supersede-options.

For example, you may be returned the following error when attempting to supersede the domain-search option:

01071627:3: Management Dhcp resource supersede-option - Invalid dhcp option: domain-search

Conditions:
You attempt to configure a dhcp-option unknown to mcpd as part of the request-options or supersede-options properties.

Note: A common dhcp-option of which mcpd has no knowledge is domain-search. You are unlikely to experience this issue unless you are requesting or superseding this particular dhcp-option.

Impact:
You are unable to instantiate the desired management-dhcp configuration.

Workaround:
None

992533 : HTML meta tag URL not rewritten when received under single quotes (' ')

Component: Access Policy Manager

Symptoms:
The URL meta tag is not rewritten if it is encapsulated in single quotes.

Conditions:
HTML page with meta tag URL under single quotes('') loaded through Portal access

Impact:
-- Failure in redirection to URL
-- Error in sending request to the URL

Workaround:
Use a custom iRule to find meta tag URL and remove the single ('') before it goes to rewrite. There is no standard iRule as it depends on web application accessed through Portal Access. Here is sample iRule:

when REWRITE_REQUEST_DONE {
    if { [HTTP::path] contains "XXXXX" } {
        #XXXXX is accessed html file
        set replace_metaurl 1
        set host_name [HTTP::host]
    } else {
        set replace_metaurl 0
    }
}

when HTTP_RESPONSE {
    if {$replace_metaurl == 1} {
        if { [HTTP::header exists "Content-Length"] and [HTTP::header "Content-Length"] <= 1048576 } {
            HTTP::collect [HTTP::header Content-Length]
        } else {
            HTTP::collect 2097152 ;# 2MB
        }
    }
}

when HTTP_RESPONSE_DATA {
    if {$replace_metaurl == 1} {
        # Workaround for support meta tag URL under ''
        # Find the meta tag URL and remove ''
        HTTP::release
    }
}

992449-3 : The vCMP host does not report the correct number of guest CPUs on the guest page of the GUI

Component: TMOS

Symptoms:
The total number of cores for a multi-slot vCMP guest is not shown correctly on the GUI page for a vCMP guest.

Conditions:
-- vCMP Host on VIPRION platforms with multiple blades.
-- vCMP guest spanning two or more blades.

Impact:
Incorrect number of cores listed.

-- The vCMP :: Guest List page shows all cores for all slots.
-- The vCMP -> Guest List specific_guest page shows only cores for that guest's slot.

Workaround:
View the Guest List page to see a graphical representation of the number of cores per guest.

992253-2 : Cannot specify IPv6 management IP addresses using GUI

Component: TMOS

Symptoms:
You are unable to set the IPv6 mgmt IP address using the GUI, even if the IPv6 address format is a not a short address. When you submit the change, the field is empty.

Conditions:
Attempt to set up IPv6 management address using the GUI

Impact:
You are unable to configure IPv6 management addresses using the GUI.

Workaround:
Use tmsh:

tmsh create sys management-ip <address>/<netmask>
tmsh create sys management-route default-inet6 <address>

992241-1 : Unable to change initial admin password from GUI after root password change

Component: TMOS

Symptoms:
While trying to change the admin password from GUI, an error occurs:
-- Authentication failed: Password expired. Update password via /mgmt/shared/authz/users.

Conditions:
-- Change the password for the root user the first time, before the admin password has been changed. This action sets both the root and admin password at the same time.

-- Navigate to the GUI and attempt to update the admin password.

Impact:
GUI password change fails.

Workaround:
You can use either of the following workarounds:

-- Change the password admin via the GUI before changing the root admin via ssh.

-- After changing the root password, use tmsh to set the admin password using the command:

modify auth user admin password.

992097-2 : Incorrect hostname is seen in logging files

Component: TMOS

Symptoms:
-- On the local blade, slot information is missing from LTM logs. Only the hostname is logged.
-- For messages received from another blade, the hostname is replaced by the word "slotX".

Conditions:
Multi-bladed VIPRION or VIPRION-based vCMP guest.

Impact:
Remote log collectors cannot identify the log message based on hostname and/or blade number.

Workaround:
None

992053-1 : Pva_stats for server side connections do not update for redirected flows

Component: TMOS

Symptoms:
Pva_stats for server side connections do not update for the re-directed flows

Conditions:
-- Flows that are redirected to TMM.
-- Server flows are offloaded to PVA.

Impact:
PVA stats do not reflect the offloaded flow.

Workaround:
None

991765-2 : Inheritance of staging_period_in_days from policy template

Component: Application Security Manager

Symptoms:
Enforcement readiness period of newly created Policy does not get its value from Policy Template.

Conditions:
Creating new ASM Policy from a template with an Enforcement readiness period different from the default (default is 7).

Impact:
Newly created policy has an incorrect configuration.

Workaround:
Create the Policy using tmsh or REST API.

991501-3 : Pool members with HTTPS monitor may be incorrectly marked down.

Component: Local Traffic Manager

Symptoms:
A pool with an HTTPS monitor may have its members marked down due to the monitor not being able to find a matching cipher for the SSL connection. This occurs when the @STRENGTH keyword is provided in the cipher suites list in the server SSL profile used by the HTTPS monitor, because bigd does not handle this keyword correctly.

Conditions:
Problem is observed when all conditions listed below are met:
- The db variable bigd.tmm set to disable (default setting).
- Pool is using an HTTPS monitor.
- The HTTPS monitor uses a custom server SSL profile.
- The server SSL profile uses a cipher string with @STRENGTH keyword.

Impact:
Pool members are wrongly marked down, preventing them from handling incoming traffic.

Workaround:
1. Select the cipher group instead of cipher suites in the server SSL profile.
2. Manually enter the ciphers in the desired order.

991265-2 : Persistence entries point to the wrong servers for longer periods of time

Component: Local Traffic Manager

Symptoms:
Persistence entries point to the wrong servers for a longer than expected.

Conditions:
A pool member goes down, causing the persistence entry to change to a new pool member. Then, the pool member comes back up.

Impact:
The persistence entry does not change to the pool member that came back up. It does not expire as client requests using this cookie continue to refresh the persistence entry that goes to the wrong server.

This can delay recovery of the pool members when they are marked down for regular maintenance, or if all pool members are cycled up/down periodically, it causes persistence entries to point to the wrong servers for longer periods of time than necessary.

Workaround:
None.

990929-3 : Status of GTM monitor instance is constantly flapping

Component: Global Traffic Manager (DNS)

Symptoms:
Status of GTM monitor instance is constantly flapping.

Conditions:
GTM devices in a GTM sync group configured with IP addresses that can not communicate with each other.

Impact:
Resources are marked offline constantly.

Workaround:
Remove from the GTM server object definition the IP addresses that do not communicate with each other.

990853-3 : Mcpd restarts on Secondary VIPRION blades upon modifying a vCMP guest's management IP address or gateway.

Component: TMOS

Symptoms:
The mcpd daemon restarts on all secondary VIPRION blades after logging error messages similar to the following example to the /var/log/ltm file:

-- err mcpd[6250]: 0107098a:3: The ip address (10.10.10.3%1) for a VCMP Mgmt IP in partition () references a route domain (1) in a different partition (part1). Objects may only reference objects in the same or the 'Common' partition
-- err mcpd[6250]: 01070734:3: Configuration error: Configuration from primary failed validation: 0107098a:3: The ip address (10.10.10.3%1) for a VCMP Mgmt IP in partition () references a route domain (1) in a different partition (part1). Objects may only reference objects in the same or the 'Common' partition... failed validation with error 17238410.

Conditions:
-- Multi-blade VIPRION system provisioned as vCMP host.
-- The system is configured with partitions using non-default route-domains.
-- Using the GUI, an Administrator attempts to modify the management IP address or management gateway of a vCMP guest.
-- A non-Common partition is selected in the GUI Partition drop-down menu when making the change.

Impact:
MCPD restarts, causing all other daemons on the blade to restart as well. The vCMP guests running on the affected blades suffer an outage and are unable to process traffic while the daemons restart.

Workaround:
Ensure that when you make management IP address or gateway changes to a vCMP guest, you do so while the Common partition is selected in the GUI.

990461-3 : Per virtual server SYN cookie threshold is not preserved or converted during a software upgrade★

Component: Advanced Firewall Manager

Symptoms:
If the original per virtual server SYN cookie threshold value was greater than 4095, the value is not preserved or converted correctly after a software upgrade from v12.x to a later version.

Conditions:
-- Per virtual server SYN cookie threshold is set.
-- SYN cookie threshold is set to a value higher than 4095.

Impact:
A change in the SYN cookie threshold value in the virtual server context may result in a change in DoS behavior, depending on your configuration.

Workaround:
Manually update the SYN cookie threshold values after an upgrade.

990173-3 : Dynconfd repeatedly sends the same mcp message to mcpd

Component: Local Traffic Manager

Symptoms:
If dynconfd sends a single message to mcpd containing two or more operations, and one of the operations fails mcpd validation, dynconfd repeatedly sends same message to mcpd.

An example of two operations in one mcp message would be an ephemeral node creation and an ephemeral pool member creation in a single mcp message.

Conditions:
This can occur when:

-- Using FQDN nodes and FQDN pool members.

-- There is an additional issue where the message from dynconfd fails validation within mcpd (e.g., a misconfiguration in which the monitor assigned to the pool is configured with a wildcard destination and the pool member is added to the pool with a port of '0' or 'any'.

Impact:
By repeatedly resending the same messages, which fail repeatedly, dynconfd causes increased mcpd CPU utilization.

This might cause the population of ephemeral nodes and pool members to fail and become out of sync with what the DNS server is resolving.

Workaround:
Examine the LTM logs for mcpd error messages indicating failed attempts to create ephemeral nodes or ephemeral pool members, and resolve the cause of the failed node or pool-member creation.

990073 : BIG-IP software v13.1.3.6, v14.1.4, v15.1.2.1, v16.0.1.1 or later require APM Clients 7.1.8.5, 7.1.9.8, or 7.2.1.1★

Component: Access Policy Manager

Symptoms:
APM end user clients fail to establish VPN access using the browser to BIG-IP APM systems running 13.1.3.6, 14.1.4, 15.1.2.1, or 16.0.1.1 with APM Client versions 7.1.8.4, 7.1.9.7, 7.2.1 or earlier in their respective software branches.

You may observe the following error message in a pop up dialog of the browser when the network access fails to launch:
=============
"F5 VPN - Your session could not be established"

"Your session could not be established.
The session reference number: nnnnnnnn

Application will be closed"
=============

Conditions:
-- This can occur after upgrading to the following BIG-IP versions:

   - 13.1.3.6
   - 14.1.4
   - 15.1.2.1
   - 16.0.1.1

-- APM end user clients are running 7.1.8.4 or earlier, 7.1.9, 7.1.9.7, or 7.2.1.

Impact:
APM end user clients, using the browser, cannot establish VPN access to the BIG-IP system.

Workaround:
Edge Clients (apmclients) versions 7.1.8.4, v7.1.9, and v7.1.9.7 (and earlier), do not work with BIG-IP versions beginning with v16.0.1.1, v15.1.2.1, v14.1.4, or v13.1.3.6. You must use later Edge Client versions.

-- If you are running 7.1.8.4 and earlier, upgrade to 7.1.8.5.
-- If you are running 7.1.9 or 7.1.9.7, upgrade to 7.1.9.8.
-- If you are running 7.2.1, upgrade to 7.2.1.1.

You can find versions 7.1.8.5, 7.1.8.9 and 7.2.1.1 on the F5 Downloads site :: https://downloads.f5.com/esd/index.jsp

For more information, see K13757: BIG-IP Edge Client version matrix :: https://support.f5.com/csp/article/K13757 and K01733249: What version of BIG-IP Edge Client should I use on my APM? :: https://support.f5.com/csp/article/K01733249

989937-1 : Device Trust Certificates Expiring after 2038-01-19 show date of 1969

Component: TMOS

Symptoms:
If you import a Certificate into the Device Trust Certificates that expires after 2038-01-19, the system GUI shows an expiration date of 1969.

Conditions:
Certificate expiring on/after 2038-01-19T03:14:08Z.

Impact:
The expiration date in the GUI shows 1969. This does not impact iquery or device function.

989517-2 : Acceleration section of virtual server page not available in DHD

Component: TMOS

Symptoms:
The acceleration section in the virtual server page(UI) is not visible if a DHD license is installed.

Conditions:
The acceleration section is not visible in case "Dos" is provisioned

Impact:
1) You are unable to use the GUI to modify any parameters of the Acceleration table in the virtual server page.

2) Loss of configuration items if making changes via the GUI.

Workaround:
A virtual server with parameters present in the Acceleration table can still be created using TMSH

989353-1 : Block column of policy signature list always shows a checkmark, regardless of policy enforcement mode

Component: Application Security Manager

Symptoms:
The 'Block' column on the policy signature screen always shows checkmarks, regardless of policy enforcement mode.

Conditions:
Signature Set has BLK enabled, and the policy is in Transparent mode.

Impact:
Misreporting of the 'Block' setting when viewed in the GUI.

Workaround:
None

988745-3 : On reboot, 'could not find platform object' errors may be seen in /var/log/ltm

Component: TMOS

Symptoms:
During a reboot, several error messages are logged in /var/log/ltm:

-- err mcpd[9401]: 01070710:3: Database error (0), get_platform_obj: could not find platform object - sys/validation/Platform.cpp, line 188.

-- err chmand[6578]: 012a0003:3: hal_mcp_process_error: result_code=0x1070710 for result_operation=eom result_type=eom

Conditions:
This occurs when either of the following conditions is met:
-- A fresh installation of a BIG-IP system.
-- A reboot after forcing the mcpd process to reload the BIG-IP configuration,

Impact:
There is no functional impact to these error messages.

Workaround:
None.

987885-4 : Half-open unclean SSL termination might not close the connection properly

Component: Local Traffic Manager

Symptoms:
Upon receiving TCP FIN from the client in the middle of the SSL Application Data, the BIG-IP system does not close the connection on either client- or server-side (i.e., it does not 'forward' the FIN on the server-side as it normally does) causing the connection to go stale until the timeout is reached.

Conditions:
-- TCP and SSL profiles configured on a virtual server.
-- Client terminates the connection in the middle of an SSL record.

Impact:
Connection termination does not happen. Connection remains in the connection table until idle timeout is reached.

Workaround:
None.

987709-4 : Static target string as CNAME pool member might cause config load failure if wide IP with same name exists in another partition

Component: Global Traffic Manager (DNS)

Symptoms:
GTM config fails to load with errors similar to this:

01070726:3: Pool 5 /Common/cnamepool1 in partition Common cannot reference GTM wideip pool member 5 /Common/cnamepool1 gslb.mycompany.com /App2/gslb.mycompany.com 1 in partition App2
Unexpected Error: Loading configuration process failed

Conditions:
There is a wide IP with the same name in another partition as the static target CNAME pool member.

Impact:
Gtm config fails to load.

Workaround:
Create the wide IP first and then add the static target CNAME pool member.

987453-1 : Bot Defense browser verification fails upon iframes of different top-level domains

Component: Application Security Manager

Symptoms:
When using Bot Defense on a page which has an iframe to a different top-level domain, the iframe may fail to load.

Conditions:
Page has an iframe on a different top-level domain than that of the main page. Note that iframes with different sub-domains are not impacted.

Impact:
Page resources may fail to load.

Workaround:
None

987401-2 : Increased TMM memory usage on standby unit after pool flap

Component: Local Traffic Manager

Symptoms:
TMM memory usage on a BIG-IP standby device might be substantially higher than an active device.

Conditions:
Standby device with UDP mirroring traffic and datagram-load-balancing disabled.

Impact:
The standby device may not be able to take over traffic when failover happens.

Workaround:
None.

987345-1 : Disabling periodic-refresh-log has no effect

Component: Advanced Firewall Manager

Symptoms:
Port Block Allocation (PBA) periodic-refresh-log set to '0' - disabled is not honored. You might see messages similar to the following logged in /var/log/ltm or sent to remote logging destinations:

info tmm[6215]: 23003168 "Port Block Periodic Log","10.10.10.10","0","","10.10.10.10","0","1024","1031","16164968240","","unknown".

Conditions:
PBA periodic-refresh-log set to '0'.

Impact:
System provides unnecessary, excessive logging.

Workaround:
None

987301-1 : Software install on vCMP guest via block-device may fail with error 'reason unknown'

Component: TMOS

Symptoms:
When installing an engineering hotfix (EHF) on a vCMP guest via block-device, sometimes it fails with 'reason unknown'.

-- /var/log/liveinstall may contain an error similar to:

I/O error : Input/output error
/tmp/lind_util.voCQOs/BIGIP1610/install/fsinfo.xml:1: parser error : Document is empty

-- /var/log/kern.log may contain an error similar to:

Aug 14 14:15:54 bigip1 info kernel: attempt to access beyond end of device
Aug 14 14:15:54 bigip1 info kernel: sr0: rw=0, want=3560560, limit=312712

Conditions:
This might occur after multiple attempts to install an EHF on a vCMP guest via block-device:

tmsh install sys software block-device-hotfix Hotfix-BIGIP-14.1.2.6.0.77.2-ENG.iso volume HD1.3

Impact:
Sometimes the EHF installation fails on the guest.

Workaround:
-- Retry the software installation.
-- If the software installation continues to fail, copy the ISO images into the vCMP guest, and use those to perform the installation.

987133-2 : Non-EDNS response with RCODE FORMERR are blocked by dns-qdcount-limit vector.

Component: Advanced Firewall Manager

Symptoms:
When a client sends a DNS request to a non-EDNS-capable server, the server may send a legitimate response with RCODE FORMERR and no DNS data. The MALFORM DNS vector blocks those requests if the dns-qdcount-limit vector is enabled.

Conditions:
-- The client sends a DNS request to NON-EDNS capable server.
-- The server replies with RCODE FORMERR and no DNS data.
-- The dns-qdcount-limit vector is enabled.

Impact:
AFM erroneously detects an attack and mitigates it, and the client does not get a response from the EDNS server

Workaround:
Disable dns-qdcount-limit vector:

security dos device-config /Common/dos-device-config {
    dos-device-vector {
        dns-nxdomain-query {
            state disabled
        }
    }
}

987081-3 : Alarm LED remains active on Secondary blades even after LCD alerts are cleared

Component: TMOS

Symptoms:
When a condition occurs which causes an alert message to be logged to the LCD display for a VIPRION chassis, the Alarm LED on the blade where the condition was reported may be set (to solid or flashing amber or red) according to the severity of the reported condition.

When the LCD alert messages are cleared, the Alarm LED on the Primary blade in the chassis will be cleared (or set according to remaining alert messages if only a subset of messages are cleared).

However, the Alarm LED on the Secondary blades in the chassis will not be cleared, and will continue to indicate the highest severity of the previously reported alert messages.

Conditions:
This occurs when:
-- A condition is reported by a Secondary blade in the chassis which causes its Alarm LED to be set (to solid or flashing amber or red) and a message logged to the chassis LCD display.
-- The LCD alert messages are cleared, such as by issuing the 'tmsh reset-stats sys alert lcd' command.

Impact:
The Alarm LED on one or more Secondary blades in the chassis continues to indicate an alert condition even after the previously reported alert messages have been cleared.

Workaround:
To restore the Secondary blade LEDs to their proper state, restart the fpdd daemon on each affected blade.

For example, if the Alarm LED is not reset on the blade in slot 4, issue one of the following commands from the console of the Primary blade in the chassis:
-- clsh --slot=4 "bigstart restart fpdd"
-- ssh slot4 "bigstart restart fpdd"

Alternately, you may log in to the console of the affected blade and issue the 'bigstart restart fpdd' command directly.

987077-1 : TLS1.3 with client authentication handshake failure

Component: Local Traffic Manager

Symptoms:
SSL handshakes are failing, and TLS clients send 'Bad Record MAC' errors.

Conditions:
-- LTM authentication profile using OSCP and TLS1.3.
-- Client application data arrives during LTM client authentication iRule.

Impact:
A handshake failure occurs.

Workaround:
Use TLS1.2 or use TLS1.3 without LTM authentication profile.

985953-3 : GRE Transparent Ethernet Bridging inner MAC overwrite

Component: TMOS

Symptoms:
Traffic not being collected by virtual server and therefore not being forwarded to the nodes.

Conditions:
Encapsulated dest-mac is not equal to the Generic Routing Encapsulation (GRE) tunnel mac-address.

Impact:
Virtual server is not collecting decapsulated packets from the GRE Transparent Bridge tunnel unless the dest-mac of the encapsulated packet is the same as the mac-address of the GRE tunnel.

Workaround:
None

985925-1 : Ipv6 Routing Header processing not compatible as per Segments Left value.

Component: Local Traffic Manager

Symptoms:
Packet should forward the packet with the route header unmodified when Segments Left is 0 (zero). It performs as expected when Segments Left is non-zero by dropping the packet and sending an ICMP error.

Conditions:
-- An IPv6 packet whose Next Header in IP header is Routing Header IPv6.
-- In the Routing Header IPv6 header, the Type field is 0.
-- In the Routing Header IPv6 header, the Segment Left field is 0.

Impact:
With Next Header field in IP header being Routing Header for IPv6, BIG-IP system fails to forward the ICMPv6 Echo Request packet to server, rather, it drops the packet.

Workaround:
None

985749-3 : TCP exponential backoff algorithm does not comply with RFC 6298

Component: Local Traffic Manager

Symptoms:
The algorithms used for TCP exponential backoff are different for SYN and non-SYN packets.

Conditions:
Using TCP.

Impact:
Retransmission timeout interval depends on the inclusion/exclusion of SYN flag.

Workaround:
None

985433-2 : Insertion of the X-Forwarded-For HTTP header can fail, causing the client's connection to be reset.

Component: Local Traffic Manager

Symptoms:
Some client connections are being reset with rst-cause 'Unknown reason'.

Conditions:
--- Standard virtual server with the TCP and HTTP profiles.

--- The HTTP profile is configured to insert the X-Forwarded-For header.

--- The client supplies an empty X-Forwarded-For header in the HTTP request.

Impact:
Affected client connections are reset, leading to application failures.

Workaround:
You can work around this issue by disabling the header insertion in the HTTP profile and instead using an iRule similar to the following example:

when HTTP_REQUEST {
HTTP::header replace X-Forwarded-For [IP::remote_addr]
}

985401-3 : ProxySSL virtual servers should work with web acceleration (ramcache) profiles attached

Component: Local Traffic Manager

Symptoms:
Attempting to attach a web acceleration profile to a virtual server that has an SSL profile with ProxySSL enabled will result in the following validation error:

A validation error similar to:

01070734:3: Configuration error: Proxy SSL is not compatible with Web Acceleration profile on Virtual Server (<virtual server name>).

Conditions:
-- Virtual server using an SSL profile with ProxySSL enabled.
-- Attaching a web acceleration (webacceleration) profile to the virtual server.

Impact:
Unable to use the web acceleration profile with ProxySSL virtual servers.

Workaround:
Avoid using ProxySSL virtual servers with web acceleration (ramcache) profiles attached.

985205-1 : Event Log and Traffic Learning screens fail to load request details★

Component: Application Security Manager

Symptoms:
Event Log and Traffic Learning screens get stuck with loading animation. and request details are not displayed.

Conditions:
This problem might be introduced during upgrading, so you see the symptom with the post-upgrade version (boot location).

Impact:
Event Log and Traffic Learning screens do not function as expected.

Workaround:
You can manually trigger populating missing items in the database to recover from the problem.

1. When this problem occurs, you see all or some of rows have no value in the following output:

# mysql -u root -p$(perl -MPassCrypt -nle 'print PassCrypt::decrypt_password($_)' /var/db/mysqlpw) -e "select rest_uuid from PLC.VIOLATIONS"
+-----------+
| rest_uuid |
+-----------+
| |
| |
| |
...snip...

2. Trigger populating those missing values:

# perl -MF5::ASMConfig::Entity::Base -MF5::DbUtils -MF5::Utils::Rest -e 'F5::Utils::Rest::populate_uuids(dbh => F5::DbUtils::get_dbh())'

3. Verify those values are indeed populated"

# mysql -u root -p$(perl -MPassCrypt -nle 'print PassCrypt::decrypt_password($_)' /var/db/mysqlpw) -e "select rest_uuid from PLC.VIOLATIONS"
+------------------------+
| rest_uuid |
+------------------------+
| -GXGw7y7XeOe4EYDgpXA9g |
| -wRSIageblaImzwhL3Pobw |
| 0GtnXx4yBFSqaB7STLh1tA |
...snip...

4. You might need to restart this daemon to make the changes take effect.

# pkill -f asm_config_server

5. Wait 30 seconds.

NOTE: None of these steps have any impact on traffic. The last step halts ASM control plane functionality for 30 seconds or so. During that time you lose access to the ASM part of GUI, cannot change the ASM configuration, and cannot perform config-sync operations.

985001-3 : Taiwan, Hong Kong, and Macau Are Defined As Countries in DNS/GTM Topology Definition

Component: Global Traffic Manager (DNS)

Symptoms:
Taiwan, Hong Kong, and Macau are defined as countries in DNS/GTM Topology definition.

Conditions:
In GUI screen, under GSLB/Topology/Records and GSLB/Topology/Regions, 'Country' field can be used to specify Taiwan, Hong Kong, and Macau.

Impact:
Taiwan, Hong Kong, and Macau can be configured as countries in GSLB/Topology screens.

Workaround:
Change 'Country' label to 'Country/Location' and the 'Country/State' label to 'Country/Location/State'.

984897-3 : Some connections performing SSL mirroring are not handled correctly by the Standby unit.

Component: Local Traffic Manager

Symptoms:
Some of the connections performing SSL mirroring do not advance through TCP states as they should on the Standby unit.

Additionally, these connections do not get removed from the connection table of the Standby unit when the connections close. Instead, they linger on until the idle timeout expires.

Conditions:
A virtual server configured to perform SSL connection mirroring.

Impact:
Should the units fail over, some connections may not survive as expected.

Additionally, given a sufficient load and a long idle timeout, this could cause unnecessary TMM memory utilization on the Standby unit.

Workaround:
None.

984657-3 : Sysdb variable not working from tmsh

Component: Traffic Classification Engine

Symptoms:
When cloud_only system db variable is enabled, urlcat_query returns categorization from webroot from tmsh

Conditions:
The following sys db variable is enabled: cloud_only

You attempt to run the following command:

tmsh list sys db urlcat_query

Impact:
Sysdb variables does not work from tmsh

984593-2 : BD crash

Component: Application Security Manager

Symptoms:
BD crashes.

Conditions:
The conditions under which this occurs are unknown.

Impact:
Traffic disrupted while bd restarts.

Workaround:
None.

984585-1 : IP Reputation option not shown in GUI.

Component: TMOS

Symptoms:
Cannot configure IP Reputation option from the GUI.

Conditions:
Configuring the LTM policy type 'IP Reputation' using the GUI, when the 'IP Intelligence' module is licensed in time-limited modules.

Impact:
The IP Reputation option is not shown in GUI configuration list. Cannot create LTM policies with IP Reputation.

Workaround:
Use tmsh to configure IP Reputation.

984521-2 : Accept-Encoding header is stripped by Bot Defense profile in case of incompatible file extension and a dot in the file name

Component: Application Security Manager

Symptoms:
Bot Defense profile checks if a page is not an HTML page by checking the file extension (among other ways).

In case the filename contains a dot (.) - the parsing is wrong and it is not detected as incompatible. As a result, the Accept-Encoding header is removed (to allow injection in the response).

Conditions:
-- Bot Defense profile is attached to s virtual server configured with any response injection (Device ID, Browser Verification, or Single Page Application).
Request is sent to an incompatible file extension (one of gif,png,bmp,jpg,ico,css,mp3,mp4,mpg,avi,wmv,mov,3gp,fla,swf,js), and filename contains a dot (.).

Impact:
Accept-Encoding header is removed, causing the server to not send a gzipped response.

Workaround:
Add this specific URL to sys db:

dosl7.parse_html_excluded_urls

983021-2 : Tmsh does not correctly handle the app-service for data-group records

Component: TMOS

Symptoms:
-- The guishell shows the app_id as the default application for the folder /Common/example_app.app and not what was specified, which was 'none'.

-- If the record has an app_id configured, the output of tmsh list data-group should list the app-service.

Conditions:
Create an application service using tmsh.

Impact:
-- Unable to properly manage the lifecycle of data-group records created via an iApp.

-- Unable to update data-group records at all via iControl REST, because the entire set of records must be managed altogether, and strict-updates prevents the existing records from being modified.

-- Inconsistent behavior across a save-and-load operation.

(The app-service is not serialized to the configuration, so after save and load, the app-service is dropped from the data-group records.)

Workaround:
After every iApp template deploy/update, run the following command:

tmsh save sys config && tmsh load sys config

982993-4 : Gateway ICMP monitors with IPv6 destination and IPV6 transparent nexthop might fail

Component: Local Traffic Manager

Symptoms:
Gateway ICMP monitors configured with IPv6 destinations and IPv6 transparent nexthop do not work if the IPv6 destination address is not directly connected, but reachable via an intermediate hop.

Conditions:
An IPv6 monitor's destination address is not directly connected, but reachable via intermediate hop.

Impact:
Monitor status remains DOWN.

Workaround:
Consider monitoring the actual target.

981689-2 : TMM memory leak with IPsec ALG

Component: Carrier-Grade NAT

Symptoms:
TMM crash due to out of memory.

Conditions:
-- IPsec ALG virtual server in BIG-IP passes traffic normally.
-- IPsec ALG connections are aborted. A common cause of IPsec ALG failure is CGNAT translation failures.

Impact:
TMM reaches memory limits. Traffic disrupted while tmm restarts.

Workaround:
None

981485-4 : Neurond enters a restart loop after FPGA update.

Component: TMOS

Symptoms:
After FPGA firmware upgrade, the neurond process might enter a restart loop, unable to recover.

When the problem is present you might see logs similar to:
-- notice chmand[6674]: 012a0005:5: FPGA PNP FW upgrade check: req type 0, file:Latest
-- notice chmand[6674]: 012a0005:5: FPGA: Requesting type: 0, vers: Latest
-- notice chmand[6674]: 012a0005:5: FPGA: current type: 2, vers: hsb_5SGXEA7H2F35C2_t37dc_1d10_v5.23.5.0_d20.06.11.00.bit
-- notice chmand[6674]: 012a0005:5: FPGA: match for type: 0, vers: hsb_5SGXEA7H2F35C2_t37dc_1d10_v5.6.7.0_d20.06.11.00.bit
-- notice chmand[6674]: 012a0005:5: removed /var/db/mcpdb.* FPGA current disk firmware updated to: /L7L4_BALANCED_FPGA type: 0
-- notice chmand-fpga-pnp[17551]: Stopping TMM, BCM56xxd, and neurond
-- notice logger[17553]: /bin/bash /etc/init.d/fw_pnp_upgrade upgrade restart ==> /usr/bin/bigstart stop tmm bcm56xxd neurond

Conditions:
FPGA firmware mismatch, leading to FPGA firmware upgrade.

Impact:
Enhanced flow acceleration provided by the Neuron chip cannot be utilized.

Workaround:
Perform a full system restart.

981145-3 : DoS events do not include the attack name for "tcp syn ack flood"

Component: Advanced Firewall Manager

Symptoms:
BIG-IQ does not display the attack name for a 'tcp syn ack flood' attack.

Conditions:
DoS on BIG-IP enabled to address 'tcp syn ack flood' attack.

Impact:
Lack of DoS attack information. The mitigation occurs as expected. Only the notification information is missing.

Workaround:
None.

980617-3 : SNAT iRule is not working with HTTP/2 and HTTP Router profiles

Component: Local Traffic Manager

Symptoms:
On HTTP/2 full-proxy virtual servers, the snatpool command in an iRule is accepted but the source address server-side is not changed.

Conditions:
1.) Basic HTTP profile and HTTP/2 profile is configured on BIG-IP systems
2.) iRule with snatpool <pool_name>, snat <IP> is configured

Impact:
Unable to use snatpool (and possibly snat) in iRule to control the server-side source address.

Workaround:
Configure SNAT under the virtual server configuration, rather than in an iRule.

980593 : LSN logging stats are always 0 for log_attempts and log_failures in tmctl fw_lsn_log_stat table

Component: Advanced Firewall Manager

Symptoms:
LSN logging stats are always 0 (zero) for log_attempts and log_failures in tmctl table fw_lsn_log_stat if lsn_legacy_mode is set as disabled.

Conditions:
The lsn_legacy_mode value is disabled.

Impact:
The log_attempts and log_failures are always 0 in tmctl table fw_lsn_log_stat.

Workaround:
None

979213-2 : Spurious spikes are visible in Throughput(bits) and Throughput(packets) performance graphs following a restart of TMM.

Component: Local Traffic Manager

Symptoms:
Upon reviewing the performance graphs in the GUI, you may notice significant spikes in the Throughput(bits) and Throughput(packets) graphs.

The spikes may report unrealistically high levels of traffic.

Note: Detailed throughput graphs are not affected by this issue.

Conditions:
This issue occurs when the following conditions are met:

-- The BIG-IP device is a physical system.
-- TMM was restarted on the system.
-- At some point, at least one interface was up on the system and recorded some traffic.

Impact:
This issue is purely cosmetic but might cause concern when reviewing the performance graphs.

Workaround:
None.

979045-3 : The tpm-status-check service shows System Integrity Status: Invalid when Engineering Hotfix installed on certain platforms

Component: TMOS

Symptoms:
After installing an Engineering Hotfix version of BIG-IP v14.1.0 or later, certain BIG-IP hardware systems. The Trusted Platform Module (TPM), status is showing as INVALID.

Conditions:
This may occur:
-- Running BIG-IP v14.1.0 or later.
-- Using Engineering Hotfixes containing fixes for the following bugs:
   - ID893885 (https://cdn.f5.com/product/bugtracker/ID893885.html)
   - ID946745 (https://cdn.f5.com/product/bugtracker/ID946745.html)
   - ID963017 (https://cdn.f5.com/product/bugtracker/ID963017.html)
-- The issue is observed only on the following platforms:
   - i11600 / i11800
   - i11400-DS / i11600-DS / i11800-DS

Impact:
The TPM status INVALID indicates that the system integrity is compromised when it is actually valid.

Workaround:
None.

978953-2 : The value of the sys db variable vlan.backplane.mtu intermittently out-of-sync with the value of the MTU of the kernel interface tmm_bp during the initial boot up

Component: Local Traffic Manager

Symptoms:
During the initial boot of the device the MTU of the tmm_bp kernel interface is out-of-sync with the value of sys db vlan.backplane.mtu as well as out-of-sync with the MTU displayed by the following command:
tmsh show /net vlan all-properties -hidden.
tmsh list net vlan tmm_bp all-properties -hidden.

Additionally, running the following command:

modify sys db vlan.backplane.mtu value <some value> (within the range accepted), and saving the configuration change does not last through a reboot.

Conditions:
This issue occurs on the first boot intermittently.

Impact:
When the values are seen at non-sync, after the modification of the backplane vlan mtu and saving the config, changing the mtu config value does not last through a reboot.

Workaround:
Rebooting the device resolves the issue

978833-2 : Use of CRL-based Certificate Monitoring Causes Memory Leak

Component: Local Traffic Manager

Symptoms:
TMM memory use increases and the aggressive mode sweeper activates.

Conditions:
CRL certificate validator is configured.

Impact:
TMM ssl and ssl_compat memory usage grows over time, eventually causing memory pressure, and potentially a traffic outage due to TMM restart.

Workaround:
None.

977953-2 : Show running config interface CLI could not fetch the interface info and crashes the imi

Component: TMOS

Symptoms:
The confd command 'show running-config' does not display interface information if nsm and bgpd are the only processes running.

If you run 'show running-config interface', imi crashes.

Conditions:
1. nsm and bgpd are the daemons running.
2. Run the "show running-config" command

Impact:
Imish cannot retrieve interface information from the show running-config command.

Workaround:
* Enable OSPF. For example,

  # tmsh modify /net route-domain 0 routing-protocol add { BGP OSPFv3 }

  # ps -ef | egrep -i ospf
  root 11954 4654 0 11:25 ? S 0:00 ospf6d%0

977625-3 : GTM persistence records linger in tmm

Component: Global Traffic Manager (DNS)

Symptoms:
-- GTM persistence records are not cleared.
-- GTM still answers from persist records even though the persist records not listed by the "tmsh show gtm persist" command.

Conditions:
Persistence for wideip or application is disabled and then enabled quickly afterwards

Impact:
GTM answers from stale persist records.

Workaround:
Do not enable persistence right after disabling.

977425 : APM - nlad & eca restarting in loop after upgrade★

Component: Access Policy Manager

Symptoms:
After upgrading and rebooting, nlad and eca restart continuously.

Conditions:
-- Upgrading BIG-IP from 13.1.1 to 15.1.1
-- NTLM configured in APM
-- The system is rebooted after upgrading

Impact:
Nlad and ECA crashes continuously.

977153-1 : Packet with routing header IPv6 as next header in IP layer fails to be forwarded

Component: Local Traffic Manager

Symptoms:
BIG-IP systems fail to follow RFC 5095, which specifies the traffic should be forwarded.

Conditions:
This symptom is found when the following conditions are met:
-- An IPv6 packet whose Next Header in IP header is Routing Header IPv6.
-- In the Routing Header IPv6 header, the Type field is 0.
-- In the Routing Header IPv6 header, the Segment Left field is 0.

Impact:
This failure in forwarding ICMP error message prevents the BIG-IP AFM product from completing certification.

Workaround:
None.

977113-5 : Unable to configure dependency for GTM virtual server if pool member dependency exists

Component: TMOS

Symptoms:
The following error is displayed when configuring GTM virtual server dependency:
01020037:3: The requested GTM depends (/Common/Generic-Host GH-VS1 /Common/DC1-DNS1 /Common/VS1) already exists.

Conditions:
The pool member dependency exists for the same virtual server.

Impact:
Not able to configure GTM virtual server dependency at GTM server level.

Workaround:
First creating GTM virtual server dependency at GTM server level, and then create pool member dependency.

976669-2 : FIPS Integrity check fails for other secondary blades after rebooting/replacing secondary blade

Component: TMOS

Symptoms:
After rebooting or replacing a secondary blade, the FIPS integrity check fails for other secondary blades and they fail to fully boot.

Conditions:
This can occur after rebooting or replacing a secondary blade.

Impact:
When the FIPS integrity checks fail the blades won't fully boot.

Workaround:
On the secondary blade reboot, the following critical files are deleted from other secondary blades which leads to FIPS integrity check failure:

/root/.ssh/authorized_keys
/root/.ssh/known_hosts

To mitigate, copy the missing files from the primary blade to the secondary blade.

From the primary blade, issue the following command towards the secondary blade(s).

rsync -avz -e ssh /root/.ssh/* root@<Secondary Blade>:/root/.ssh/

976621-3 : SIP ALG not processing IPv6 in NAT64 UDP

Component: Advanced Firewall Manager

Symptoms:
NAT64 UDP does not work with application layer gateway (ALG) profiles configured for SIP traffic.

Conditions:
-- ALG profiles configured for SIP traffic.
-- NAT and IPv6 UDP traffic.

Impact:
NAT translation does not happen for IPv6 UDP traffic with SIP ALG.

Workaround:
Enable NAT64 explicitly for UDP SIP traffic to be translated.

976525-3 : Transparent monitors can have the incorrect source address when snat.hosttraffic is enabled

Component: Local Traffic Manager

Symptoms:
In BIG-IP v13.1.3.2 and later, there is new functionality to SNAT the traffic coming from the host system. When there are multiple routes to a destination address and transparent monitors are in use, tmm occasionally picks the wrong source IP for these connections.

Conditions:
-- The db variable snat.hosttraffic is enabled.
-- Gateway pool with multiple members.
-- Transparent monitors.

Impact:
The system chooses the wrong source IP address for the egress interface. That incorrect source IP address might cause traffic to return on the wrong VLAN.

Workaround:
Use either of the following workarounds:

-- Disable VLAN keyed connections: modify sys db connection.vlankeyed value disable

-- Upgrade to a version with a fix for ID 826905 (https://cdn.f5.com/product/bugtracker/ID826905.html) and disable snat.hosttraffic.

976517-1 : Tmsh run sys failover standby with a device specified but no traffic group fails

Component: TMOS

Symptoms:
The tmsh run /sys failiover standby device <device> command fails and returns an error if no traffic-group is specified:

Syntax Error: There is no failover device with a name (/Common/bigip2.localhost).

Conditions:
Two or more BIG-IPs configured with high availability (HA)

Impact:
You are required to specify all the traffic groups you want to failover to a peer.

Workaround:
For each traffic group that you want to failover to a peer run the tmsh run /sys failover standby.

For example if you want to fail over both traffic groups traffic-group-1 and traffic-group-2 to failover to bigip2.localhost, run the following:

tmsh run /sys failover standby device bigip2.localhost traffic-group traffic-group-1

tmsh run /sys failover standby device bigip2.localhost traffic-group traffic-group-2

If you want the device to be standby for all traffic groups but you don't care what device takes over as active, run the following command (note there is no traffic-group nor device):

tmsh run /sys failover standby

976101-2 : TMM crash after deleting an interface from a virtual wire vlan

Component: Local Traffic Manager

Symptoms:
TMM crashes.

Conditions:
-- Virtual wire enabled
-- Delete an interface from the virtual wire vlan.

Impact:
Traffic disrupted while tmm restarts.

976013-4 : If bcm56xxd starts while an interface is disabled, the interface cannot be enabled afterwards

Component: TMOS

Symptoms:
A disabled interface is not getting enabled.

Conditions:
-- An interface is disabled
-- bcm56xxd is restarted

Impact:
The interface remains on disable state and no traffic passes via that interface.

Workaround:
Restart bcm56xxd again.

975725-3 : Wildcard virtual servers do not forward L3 unicast traffic sent to L2 broadcast

Component: Local Traffic Manager

Symptoms:
L3 unicast traffic with L2 broadcast destination MAC (ff:ff:ff:ff:ff:ff) matching wildcard virtual servers is not handled properly.

Conditions:
Wildcard virtual server is configured to handle such traffic.

Impact:
Traffic will not be forwarded properly.

Workaround:
Use specific non-wildcard virtual-server.

975657 : With HTTP2 enabled, only partial sorry contents (< 32KB) can be sent to the client via HTTP::respond

Component: Local Traffic Manager

Symptoms:
Partial content (<= max allowed "write-size" in HTTP2 profile i.e. 32KB) can be sent to client via the HTTP:respond iRule command.

Conditions:
-- HTTP2 enabled on virtual server
-- Content sent by the iRule exceeds 32KB

Impact:
Client fails to receive the whole content

974985-2 : Dosl7/bot does not ignore non-http traffic even when disabled via iRule DOSL7::disable

Component: Application Security Manager

Symptoms:
Non http traffic isn't forwarded to the backend server

Conditions:
- ASM provisioned
- DoS Application or Bot Defense profile assigned to a virtual server
- DOSL7::disable applied at when CLIENT_ACCEPTED {}

Impact:
Broken webapps with non-http traffic

Workaround:
Instead of using DOSL7::disable, redirect non-http traffic to non-http aware virtual server using the iRule command virtual <virtual_server_name>

974513-2 : Dropped requests are reported as blocked in Reporting/charts

Component: Application Security Manager

Symptoms:
Dropped requests are reported as blocked in Reporting/charts.

Conditions:
Request is dropped (or client side challenge / captcha is not answered) as part of a brute force mitigation or a slow post attack causes dropping of a request.

Impact:
Data reported might be incorrect. There is a filter for dropped requests which, when selected, does not show anything, even when there are drops.

Workaround:
None.

974409-2 : False Positive "Surfing Without Human Interaction"

Component: Application Security Manager

Symptoms:
When using Bot Defense profile, and an application contains many HTML pages which are not qualified (not even accept: text/html), a "Surfing Without Human Interaction" anomaly is mis-counted and falsely raised.

Conditions:
-- Bot Defense Profile is attached to a virtual server.
-- The application contains many HTML pages which can be detected as such from the request.

Impact:
Real clients might or might not be blocked, it depends on the environment.

Workaround:
None.

974225-2 : Link Status traps are not issued on VE based BIG-IP systems

Component: TMOS

Symptoms:
The Link Status traps, both F5 proprietary and standard LinkUp/LinkDown are issued on the BIG-IP hardware but not on BIG-IP Virtual Edition (VE) configurations.

Impact:
Log messages are issued and SNMP traps are issued if an SNMP trap destination is configured.

On BIG-IP Virtual Edition, logs are emitted but traps do not occur.

An SNMP client waiting for a Link Status trap on an administrator to enable or disable then, does not receive the trap.

Workaround:
None.

974193-2 : Error when trying to create a new f5.vmware_view.v1.5.9 iApp

Component: iApp Technology

Symptoms:
Error when trying to create a f5.vmware_view.v1.5.9 iApp

Configuration Warning: New virtual address (/Common/10.10.10.10) used by server with access profile attached has traffic group (/Common/traffic-group-1) that is different from existing one (/Common/traffic-group-exchange). Change it to the existing one

Conditions:
-- Create a new f5.vmware_view.v1.5.9 iApp
-- iApp uses a traffic group other than the default traffic-group-1

Impact:
Unable to create new f5.vmware_view.v1.5.9 iApp

Workaround:
None.

973673-1 : CPU spikes when the LDAP operational timeout is set to 180 seconds

Component: Access Policy Manager

Symptoms:
By default, the LDAP operation timeout is 180 seconds, and this can cause CPU spikes.

Conditions:
-- BIG-IP configured with a per-request access policy.
-- A high traffic load containing a lot of LDAP Auth and LDAP Query operations occurs.

Impact:
High LDAP traffic load can cause cpu spikes and traffic disruption.

973341-2 : Customized device certs will break scripts relying on /config/httpd/conf/ssl.crt/server.crt

Component: Global Traffic Manager (DNS)

Symptoms:
Bigip_add, big3d_install, gtm_add will not work.

Conditions:
Device cert is customized.

Impact:
Bigip_add, big3d_install, gtm_add not work.

Workaround:
Copy the content of the new cert to default file "/etc/httpd/conf/ssl.crt/server.crt".

972785-6 : Unable to create virtual server with a non-zero Route Domain for custom partition via iControl SOAP

Component: TMOS

Symptoms:
While creating a virtual server using iControl SOAP you get an error:

error_string : 0107004d:3: Virtual address (/VPN_WEB_01/0.0.0.0%201) encodes IP address (0.0.0.0%201) which differs from supplied IP address field (10.10.10.50%201).'

Conditions:
-- Using iControl SOAP to create a virtual server.
-- The virtual server is assigned to a partition that uses a non-default route domain.

Impact:
Unable to create the virtual server with the iControl SOAP command.

Workaround:
First create the virtual server with a default Virtual Address ('0.0.0.0'). and then update the virtual address with the desired address.

Example:
ltm.LocalLB.VirtualServer.create([{'name': 'vs_test_9095', 'address': '0.0.0.0', 'port': 9090, 'protocol': 'PROTOCOL_TCP'}], ['255.255.255.255'], [{'type': 'RESOURCE_TYPE_POOL'}], [[{'profile_context': 'PROFILE_CONTEXT_TYPE_ALL', 'profile_name': 'fastL4'}]])
ltm.LocalLB.VirtualServer.set_destination_v2(['vs_test_9095'],[{'address': '10.10.10.50', 'port': 9090}])

971217-2 : AFM HTTP security profiles may treat POST requests with Content-Length: 0 as "Unparsable Request Content" violations.

Component: Local Traffic Manager

Symptoms:
An HTTP Security profile can be created and enabled within Advanced Firewall Manager's Protocol Security options. The HTTP Security Profile contains various protocol checks that can be enabled and disabled to allow customization of security checks. When the "Unparsable request content" check is selected, BIG-IP will incorrectly indicate that HTTP POST requests with Content-Length:0 are not allowed assuming that these requests are unparsable. POST requests with Content-Length:0 can still be checked by enabling the "POST request with Content-Length: 0" option in the same profile.

Conditions:
-- HTTP Protocol Security Profile configured with the "Unparsable request content" check.

-- Client sends HTTP POST request with Content-Length:0

Impact:
POST requests of Content-Length 0 cannot be disabled separately from general "Unparsable request content".

Workaround:
None.

971009-1 : SNMPv3 alerts are not sent after upgrade to post 15.1.0.3 firmware

Component: TMOS

Symptoms:
SNMPv3 alerts are not sent after upgrade to post 15.1.0.3 firmware. SNMPv2 traps are not affected.

Conditions:
This is encountered after upgrading to firmware version 15.1.0.4 or higher.

Impact:
SNMPv3 traps are not sent.

Workaround:
Restart alertd:
tmsh restart sys service alertd

970341 : Messages are not forwarded when "disable-parser" is set to "NO" in Generic Message Profile

Component: Service Provider

Symptoms:
In the BIG-IP Generic Message profile, if "disable-parser" is set to "YES", parsing and message forwarding should be performed using iRule code, but this does not occur.

Conditions:
-- Generic message MRF Profile
-- Set "disable-parser" to "YES" in generic message profile in BIG-IP system

Impact:
Messages accumulated at Generic Message filter in tmm and not routed to server

Workaround:
Message can be forwarded using below iRule command in egress direction

when GENERICMESSAGE_EGRESS {
SCTP::respond "[GENERICMESSAGE::message data]\n"
}

969737-1 : Snmp requests not answered if V2 traps are configured

Component: TMOS

Symptoms:
SNMP requests are not answered except the ones sent to the localhost ip address.

Conditions:
V2 traps are configured, for example:

tmsh modify sys snmp v2-traps add { ...

Impact:
SNMP external requests fail

Workaround:
Move all traps configured under 'v2-traps' to 'traps' in the configuration

969553-2 : A DNS Cache (or Network DNS Resolver) returns SERVFAIL to some queries.

Component: Global Traffic Manager (DNS)

Symptoms:
- A DNS Cache (or Network DNS Resolver) returns SERVFAIL responses to clients, despite the BIG-IP system receiving a good (albeit delayed) response from upstream servers.

- When this happens, the BIG-IP system can be seen reject the responses from the upstream servers with ICMP errors (Destination unreachable - Port unreachable).

- If the db key dnscacheresolver.loglevel is set to debug5, the following error message is visible in the /var/log/ltm file when this issue occurs:

debug tmm[13147]: DNScache: request example.com. has exceeded the maximum number of glue fetches 17 to a single delegation point

- If a Network DNS Resolver is used with an HTTP Explicit Proxy profile, the symptoms can appear as "503 Service Unavailable" responses to clients due to DNS lookup failure.

Conditions:
This issue occurs when the following conditions are met:

- A DNS Cache (or Network DNS Resolver) is in use on the BIG-IP system.

- The aforementioned object is configured with a forward-zone that uses multiple servers to perform resolutions.

- The RTT of the servers fluctuates. For example, the servers are generally fast to reply for most domains, but take extra time to reply for a given domain.

- 'Randomize Query Character Case' is enabled in the DNS Cache (or Network DNS Resolver).

- If the requests for the domain take a long time to resolve, BIG-IP may reply with SERVFAIL.

Impact:
Clients of the BIG-IP DNS Cache (or Network DNS Resolver) are not returned an answer. As a result, application failures may occur.

Workaround:
You can work around this issue by changing 'Randomize Query Character Case' to 'No' in the DNS Cache (or Network DNS Resolver) settings.

969329-2 : Dashboard: Chart title/legend 'Control Plane' needs to be modified within dashboard of BIG-IP

Component: TMOS

Symptoms:
BIG-IP Virtual Edition (VE) uses a virtualized core, so there is no hyper-threading. This means the data plane and control plane share a single CPU core. However, the Dashboard allows you to select CPU data for 'Control Plane' beside System Average.

Conditions:
View GUI Dashboard on BIG-IP VE or HTsplit-disabled appliances.

Impact:
Dashboard chart title creates confusion.

Workaround:
None.

969317-3 : "Restrict to Single Client IP" option is ignored for vmware VDI

Component: Access Policy Manager

Symptoms:
The Restrict to Single Client IP option in the Access Policy is not being honored for VMware VDI.

Conditions:
- Configure APM Webtop with vmware VDI.
- Set "Restrict to Single Client IP" option in Access Profile.
- Try to launch vmware desktop on one client. Copy the launch URI
- Try to launch vmware desktop from other client using the copied URI.

Impact:
A connection from the second client is allowed, but it should not be allowed.

968953-3 : Unnecessary authorization header added in the response for an IP intelligence feed list request

Component: Advanced Firewall Manager

Symptoms:
Empty authorization header in the response for an IP intelligence feed list request.

Conditions:
Feed list configured without username/password pair.

Impact:
Feed List request from dwbld adds unnecessary Authorization header. There is no functional impact.

Workaround:
None.

968949-5 : Keepalives aren't sent in FIN_WAIT_2 when using a TCP profile

Component: Local Traffic Manager

Symptoms:
When a client-side connection goes into FIN_WAIT_2, BIG-IP does not send keepalives even if they are being sent on the server-side connection.

Conditions:
- Virtual server configured with a TCP profile and network listener.

Impact:
Client-side connections timeout prematurely.
As a result, the server-side connections end up being open indefinitely.

Workaround:
No workaround currently known.

968581-2 : TMSH option max-response for "show /ltm profile ramcache" command may not comply with its description

Component: Local Traffic Manager

Symptoms:
The TMSH command "show /ltm profile ramcache" has a max-response option to output a number of records designated in this parameter. Due to calculation algorithm, the command may output less records than RAMCACHE stores or more records than the limit prescribes.

Conditions:
-- A virtual server is configured on BIG-IP.
-- A webacceleration profile with no web application is attached to the virtual server.
-- Traffic is sent over the virtual server with a number of unique cacheable documents that exceed a designated limit.

Impact:
Output of the command may not match to actual list of stored documents in RAMCACHE.

967737-2 : DNS Express: SOA stops showing up in statistics from second zone transfer

Component: Global Traffic Manager (DNS)

Symptoms:
Start of Authority (SOA) record is not displayed in zone statistics.

Conditions:
The issue appears after the 2nd zone transfer.

Impact:
This is a cosmetic issue without any actual impact.

Workaround:
None

967573-2 : Qkview generation from Configuration Utility fails

Component: TMOS

Symptoms:
When you attempt to generate a qkview using the Configuration Utility, the system fails to generate a qkview.

Conditions:
Trying to generate a Qkview using the Configuration Utility.

Impact:
The Configuration Utility cannot be used to generate a qkview.

Workaround:
Use the qkview command to generate a qkview from the command line.

967425-2 : mcp error: 0x1020036 at ../mcp/db_pool.c:461

Component: Local Traffic Manager

Symptoms:
After a node has been 'moved' / renamed, modification of objects referencing the node may result in a database error and issues with the intended action.

In particular, when a node which is associated with a pool is moved, it will appears to be successful, however, after modifying the session / user status, it will result in an error.:
mcp error: 0x1020036 at ../mcp/db_pool.c:461

Conditions:
In particular, when a node which is associated with a pool is moved, it will appears as successful, however, after modifying the session / user status, it will result in a DB error.

Impact:
A after modifying the pool, an error will be logged.

Connections will continue to be accepted despite all members in the pool being down/disabled.

967353-3 : HTTP proxy should trim spaces between a header field-name and colon in its downstream responses.

Component: Local Traffic Manager

Symptoms:
Client receives no response along with a connection reset by the BIG-IP system.

Conditions:
-- HTTP profile is enabled on the BIG-IP system.
-- Server sends HTTP response with one or more header field names separated with the trailing colon by a space.

Impact:
HTTP responses that should be delivered to the client by the proxy are not being sent out.

Workaround:
None

967249-2 : TMM may leak memory early during its startup process, and may continue to do so indefinitely.

Component: Local Traffic Manager

Symptoms:
TMM leaks memory in the packet and xdata components. The aggressiveness of the leak depends on how much traffic TMM receives from the Linux host subsystem.

Conditions:
- A BIG-IP system running more than 1 TMM instance.

- Early during its startup process, TMM begins receiving traffic from the Linux host subsystem destined to the network (e.g., remote syslog traffic routed to its destination through TMM).

- Depending on the system's configuration, TMM attempts to set up flow forwarding for the aforementioned traffic. This may happen, for instance, if the egress VLAN is configured for 'cmp-hash src-ip'.

- TMM hasn't fully completed its startup process yet.

Impact:
TMM leaks memory.

If the flow set up during early TMM startup continues to receive a constant stream of new packets, then the flow may live on indefinitely, and TMM may continue to leak memory indefinitely.

In the example of remote syslog traffic, this could happen, for instance, if the box keeps logging messages at a sustained rate.

Eventually, TMM may be unable to allocate any more memory and crash. Traffic disrupted while tmm restarts.

Workaround:
You can work around this issue by ensuring that TMM does not receive any traffic from the Linux host subsystem for forwarding during early startup.

In the example of remote syslog destinations, you could specify the management IP address of the system as the source IP address for the traffic, thus forcing the traffic out of the management port instead of TMM. This implies the management port has a suitable working route to the destination.

967245-3 : Incorrect SPVA counter incremented during Sweep attack on profile

Component: Advanced Firewall Manager

Symptoms:
Incorrect SPVA counters updated.

Conditions:
Configure DoS Sweep vector on an SPVA supported device.

Impact:
Usage of dos_spva_stat will result in displaying incorrect counters.

967093-1 : In SSL forward proxy when the signing CA cert and end-entity cert has a different signature algorithm, the SSL connection may fail

Component: Local Traffic Manager

Symptoms:
In SSL forward proxy, the client side handshake may fail with the message: fwdp lookup error.

Conditions:
The handshake failure occurs when the certificate chain consists of different key types. For example, the following cert chain may fail the handshake:

root CA (rsa) --> intermediate CA1 (rsa) --> intermediate CA2 (ec) --> end-entity cert (ec)

The signing CA which is intermediate CA2 has a key of EC type, but cert is signed by RSA signature. The end-entity cert has a key of EC type, but cert is signed by ECDSA.
In this case, the signer cert has different signature from that of the end-entity cert.

Impact:
SSL forward proxy handshake fails.

966949-2 : Multiple FQDN ephemeral nodes not deleted upon deleting FQDN template node

Component: TMOS

Symptoms:
If an FQDN template node is configured with "autopopulate enabled" and the FQDN name resolves to multiple IP addresses, multiple FQDN ephemeral nodes will be created.
If the FQDN template node is then deleted, the associated FQDN ephemeral nodes (sharing the same FQDN name) will not be deleted as expected.

Conditions:
This may occur under the following conditions:
-- An FQDN template node is configured with "autopopulate enabled"
-- The configured DNS server resolves the FQDN name to multiple IP addresses
-- You are running an Affected Version of BIG-IP, or an Engineering Hotfix based on a non-Affected Version of BIG-IP which contains a fix for ID 722230

This issue does not occur if only one FQDN ephemeral node is created for the associated FQDN template node.

Impact:
Unused FQDN ephemeral nodes may remain in the active configuration.
-- Since is it not possible to delete an FQDN template node if there are any FQDN template pool members referring to that node, it is not possible for any FQDN ephemeral pool members to remain when the steps that lead to this issue occur.
-- Since traffic can only be passed to FQDN ephemeral pool members, the existence of the unused FQDN ephemeral nodes does not lead to traffic being passed to such nodes.

Workaround:
It is possible to work around this issue by one of the following methods:
-- Manually deleting the remaining FQDN ephemeral nodes using the "tmsh" command-line interface (CLI)
(Note that this is normally not possible. It is possible to manually delete an FQDN ephemeral node only if the corresponding FQDN template node no longer exists.)
-- Restarting BIG-IP (for example, using the command "bigstart restart")

966633-2 : Policy entity search with non-ASCII value filter returns no results in REST/GUI in non-UTF-8 policies

Component: Application Security Manager

Symptoms:
WAF policy entities (such as parameters) are not found when filtering by non-ASCII values in REST/GUI in non-UTF-8 policies.

Conditions:
WAF policy is defined as non-UTF-8, and a non-ASCII value is used in an entity search filter.

Impact:
No results are returned.

Workaround:
None

966613-4 : Cannot create XML profile based on WSDL when wsdl contains empty soap:address – getting error ‘Column 'object_uri' cannot be null’

Component: Application Security Manager

Symptoms:
Perl error returned when saving new XML content profile using wsdl file with empty soap:address node "<soap:address/>".

Conditions:
Creating a new content profile using a wsdl file which contains a "<soap:address/>" node which does not have a "location" attribute value.

When this content profile is saved, ASM attempts to create an associated URL with no value, which fails validation.

Impact:
After trying to save the content profile, you see an error message: "Could not create XML Profile; Error: DBD::mysql::db do failed: Column 'object_uri' cannot be null"

Workaround:
Delete the node "<soap:address/>" from the wsdl file

966461-6 : Tmm leaks memory after each DNSSEC query when netHSM is not connected

Component: Global Traffic Manager (DNS)

Symptoms:
Tmm memory increases per DNSSEC query.

Conditions:
NetHSM is configured but is disconnected

Impact:
Tmm high memory consumption.

Workaround:
Connect the netHSM.

966073-1 : GENEVE protocol support

Component: TMOS

Symptoms:
BIG-IP software does not support the GENEVE protocol.

Conditions:
-- AWS Gateway load balancer is in use, which uses the GENEVE protocol

Impact:
GENEVE protocol is unsupported.

Workaround:
None.

965941-2 : Creating a net packet filter in the GUI does not work for ICMP for IPv6

Component: TMOS

Symptoms:
When using the GUI to create a 'net packet-filter' rule to block ICMP packets, the filter does not block IPv6 packets.

Conditions:
-- Using the GUI to create a packet filter rule to block incoming ICMP packets.
-- Attempting to block an IPv6 address.

Impact:
Packets get through the filter unexpectedly.

Workaround:
Modify the packet filter manually using tcpdump syntax. For example, the following syntax is used to block ICMP packets for both IPv4 and IPv6:

icmp or icmp6

965897-2 : Disruption of mcpd with a segmentation fault during config sync

Component: Advanced Firewall Manager

Symptoms:
The mcpd process on the peer device fails with a segfault, restarts and then segfaults again in a loop

Numerous messages may be logged in the "daemon" logfile of the following type:

emerg logger[2020]: Re-starting mcpd

Conditions:
-- High availability (HA) configuration
-- A port-and-address list configuration is changed to be only an address list
-- A config sync occurs

Impact:
Continuous restarts of mcpd process on the peer device.

Workaround:
One possible measure for getting the peer-machine "mcpd" out of its failure mode is to command the still-functioning system to push a "full" config sync to the appropriate device group. Doing this twice consecutively may be necessary.

# tmsh run /cm config-sync force-full-load-push to-group APPROPRIATE-DEVICE-GROUP

965837-2 : When BIG-IP is configured with PingAccess profile, tmm can core when there is an active connection

Component: Access Policy Manager

Symptoms:
When BIG-IP is configured with a PingAccess profile and an SSL profile is associated with both the BIG-IP virtual server and a ping access configuration, an active connection to the virtual server may lead to a TMM crash.

Conditions:
-- SSL is configured on both the BIG-IP virtual server that contains the ping access profile and ping access configuration.
-- Active connection to the BIG-IP virtual server
-- Config sync is triggered or "tmsh load sys config" is triggered

Impact:
Traffic disrupted while tmm restarts.

Workaround:
No workaround.

965785-2 : Active/Standby sync process fails to populate table DCC.HSL_DATA_PROFILES on standby machine

Component: Application Security Manager

Symptoms:
DCC.HSL_DATA_PROFILES table on standby machine stay empty after sync process. Error for DB insert failure into table DCC.HSL_DATA_PROFILES thrown in asm_config_server.log.

Conditions:
There is no specific condition, the problem occurs rarely.

Impact:
Sync process requires an additional ASM restart

Workaround:
Restart ASM after sync process finished

965777-2 : Per-request policy authentication becomes unresponsive

Component: Access Policy Manager

Symptoms:
Per-request policy execution can appear to be slow during subroutine evaluation, and apmd appears to take a large amount of CPU.

Conditions:
The per-request policy is using subroutine to execute an authentication related agent that is dispatched to apmd for completion. These typically involve authentication agents that interact with an external authentication server, such as LDAP, RADIUS, or AD.

Impact:
Connectivity may be impaired or lost.

Workaround:
Failover the high availability (HA) pair, or restart apmd.

965457-4 : OSPF duplicate router detection might report false positives

Component: TMOS

Symptoms:
OSPF duplicate router detection might report false positives

Conditions:
Router sends LSA that is looped in network and sent back to its origin.

Impact:
Cosmetic

965205-2 : BIG-IP dashboard downloads unused widgets

Component: TMOS

Symptoms:
The BIG-IP dashboard page downloads all widgets, even widgets that are not visible on the dashboard.

Conditions:
This occurs when viewing the BIG-IP dashboard.

Impact:
Slower-than-necessary GUI response, and the dashboard shows higher-than-necessary CPU utilization.

Workaround:
None.

965053-3 : [Regression of ID787881 & ID761032] DNSX fails to sign zone transfer using tsig key after failure

Component: Global Traffic Manager (DNS)

Symptoms:
DNSX fails to sign zone transfer using tsig key.

Conditions:
A transfer error occurs while DNSX is initializing.

Impact:
DNSX zones are not been updated.

Workaround:
Re-enter the tsig key secret.

965037-1 : SSL Orchestrator does not send HTTP CONNECT tunnel payload to services

Component: Local Traffic Manager

Symptoms:
In some cases, when Services in SSL Orchestrator (service-connect agent in per-request policy) is inserted after Category lookup for CONNECT request hostname, the HTTP CONNECT tunnel payload/data is not sent to services.

Conditions:
SSL Orchestrator use case and Services are inserted after Category lookup for CONNECT request hostname

Impact:
HTTP CONNECT tunnel payload is not sent to services

Workaround:
None

964989-2 : AFM DOS half-open does not handle wildcard virtual servers properly.

Component: Advanced Firewall Manager

Symptoms:
AFM DOS half-open vector does not handle wildcard virtual servers properly.

Conditions:
-- Wildcard virtual-server.
-- AFM DOS half-open vector configured.
-- Attacks towards multiple destinations covered by a single virtual-server.

Impact:
- Wrong statistics reporting.
- Wrong status of syncookie protection.
- Unexpected traffic drops.

Workaround:
Split wildcard virtual server into a series of /32 virtual servers.

964625-3 : Improper processing of firewall-rule metadata

Component: Advanced Firewall Manager

Symptoms:
The 'mcpd' process may suffer a failure and be restarted.

Conditions:
Adding very large firewall-policy rules, whether manually, or from config-sync, or from BIG-IQ.

Impact:
-- MCPD crashes, which disrupts both control-plane and data-plane processing while services restart.
-- Inability to configure firewall policy.

Workaround:
Reduce the number of firewall policy rules.

964533-3 : Multiple session_process_pending_event_callback ERROR: could not send callback messages get logged in the tmm logs

Component: TMOS

Symptoms:
The BIG-IP system tmm logs show multiple session_process_pending_event_callback errors.

Conditions:
This can occur while passing normal traffic, if a session is deleted before all the session db callback events are handled.

Impact:
Numerous error event entries found in the TMM log:
notice session_process_pending_event_callback ERROR: could not send callback to 10.10.10.10:460 - 10.10.10.10:80 ERR_NOT_FOUND.

There is no impact other than additional log entries.

Workaround:
None.

964421-2 : Error '01070734:3: Configuration error: Signing key and signing certificate must be set simultaneously'

Component: TMOS

Symptoms:
The error message '01070734:3: Configuration error: Signing key and signing certificate must be set simultaneously' is unclear.

It fails to indicate which rewrite profile has failed validation, and it is not clear that the error has something to do with the validation of rewrite profiles.

Conditions:
A BIG-IP Administrator is attempting to configure an invalid rewrite profile (one where the 'signing certificate' and 'signing key' options are not simultaneously set).

Impact:
A confusing error message is logged, which makes it difficult to know what to do next.

964125-2 : Mcpd cores while processing a query for node statistics when there are thousands of FQDN nodes and pool members.

Component: TMOS

Symptoms:
Mcpd might core and restart if it fails to process a query for all node statistics in less than 5 minutes.

There is more then one avenue where node statistics would be queried.

The BIG-IP Dashboard for LTM from the GUI is one example.

Conditions:
Thousands of FQDN nodes and pools with FQDN pool members and a query for all node statistics.

Impact:
Mcpd restarted which will cause services to failover. Traffic and configuration disrupted while mcpd restarts.

964037 : Error: Exception response while loading properties from server

Component: Access Policy Manager

Symptoms:
The General Customization interface for Endpoint Security in the GUI cannot be used for Access Profile with modern customization due to interface error.

Conditions:
-- Access Profile with modern customization
-- General Customization interface for Endpoint Security

Impact:
You are unable to modify Endpoint Security interface strings

963869-2 : Remote Desktop app fails to launch from webtop when Per-request Policy is added to virtual server.

Component: Local Traffic Manager

Symptoms:
Users are unable to launch the Remote Desktop app from the webtop.

Conditions:
-- APM is licensed and provisioned.
-- Remote Desktop is configured and attached to the per-session policy.
-- A per-request policy is attached to the virtual server.

Impact:
Users cannot access the remote desktop application.

Workaround:
Don't attach the per-request policy to the virtual server if it's not required.

963705-3 : Proxy ssl server response not forwarded

Component: Local Traffic Manager

Symptoms:
A server response may not be forwarded after TLS renegotiation.

Conditions:
-- Proxy ssl enabled
-- A server renegotiation occurs

Impact:
Server response may not be not forwarded

963541-2 : Net-snmp5.8 crash

Component: TMOS

Symptoms:
Snmpd crashes.

Conditions:
This does not always occur, but it may occur after a subagent (bgpd) is disconnected.

Impact:
Snmpd crashes.

963393-1 : Key handle 0 is treated as invalid for NetHSM devices

Component: Local Traffic Manager

Symptoms:
HTTPS pool members are marked down when they are up.

Conditions:
-- SafeNet HSM configured
-- HTTPS monitor uses the safenet keys
-- The key handle generated by the HSM is 0

Impact:
Pool members are marked down because bigd cannot connect to the pool member using the Safenet HSM key.

Workaround:
Use in-TMM monitors as an alternative to bigd monitors.

962913-4 : The number of native open connections in the SSL profile is higher than expected

Component: Local Traffic Manager

Symptoms:
The number of native open connections in the SSL profile shows a value that is higher than expected.

Conditions:
SSL renegotiation is enabled. Other conditions are unknown.

Impact:
The SSL stats are incorrectly reading higher than expected.

Workaround:
Disable SSL renegotiation.

962605-4 : BIG-IP may go offline after installing ASU file with insufficient disk space

Component: TMOS

Symptoms:
When installing an ASU file, if there is not enough disk space in /var, the clntcp update file might become corrupted, causing datasyncd to be offline (and thus cause the entire BIG-IP offline)

Conditions:
-- ASM/FPS provisioned.
-- Installing ASU file.
-- Not enough space in /var partition.

Impact:
Device goes offline.

Workaround:
Delete the update file:
tmsh delete security datasync update-file /Common/datasync-global/update-file-clntcap_update_ (auto complete)

962493-5 : Request is not logged

Component: Application Security Manager

Symptoms:
A request is not logged in the local and/or remote logs.

Conditions:
A request has evasions detected on very large parameters.

Impact:
A missing request in the log.

Workaround:
N/A

962489-5 : False positive enforcement of parameters with specific configuration

Component: Application Security Manager

Symptoms:
False positive parameters are being detected in the payload and enforced wrongly.

Conditions:
The URL is not defined (also not as wildcard - not defined at all) and the request has a payload.

Impact:
False positive enforcement - may lead to wrong violations and wrong blocking of requests.

Workaround:
None.

962181-2 : iRule POLICY command fails in server-side events

Component: Local Traffic Manager

Symptoms:
BIG-IP provides an iRule command POLICY to retrieve information on or manipulate an LTM policy attached to a virtual. This command fails when it is used in server-side event like HTTP_RESPONSE.

Conditions:
-- Configure a virtual server with one or more LTM policies.
-- The virtual server has an iRule with a POLICY command executed on a server side (e.g. HTTP_RESPONSE).

Impact:
A command returns an incorrect value and may cause unexpected outcomes in an iRule execution.

961653-2 : Unable to retrieve DNS link statistics via SNMP OID gtmLinkStatRate

Component: Local Traffic Manager

Symptoms:
Unable to retrieve link statistics via SNMP OID gtmLinkStatRate

config # snmpwalk -c public localhost F5-BIGIP-GLOBAL-MIB::gtmLinkStatRate
F5-BIGIP-GLOBAL-MIB::gtmLinkStatRate = No Such Object available on this agent at this OID

Conditions:
A BIG-IP DNS/LC system configured with link objects.

Try to do an snmpwalk for F5-BIGIP-GLOBAL-MIB::gtmLinkStatRate which is not successful.

Impact:
BIG-IP DNS system link statistics cannot be retrieved via SNMP.

Workaround:
No workaround.

961509-2 : ASM blocks WebSocket frames with signature matched but Transparent policy

Component: Application Security Manager

Symptoms:
WebSocket frames receive a close frame

Conditions:
-- ASM provisioned
-- ASM policy attached to a virtual server
-- WebSocket profile attached to a virtual server
-- ASM policy transparent mode enabled

Impact:
WebSocket frame blocked in transparent mode

Workaround:
Change signatures blocking settings to Learn = Yes, Alarm = Yes, Block = No

961001-2 : Arp requests not resolved for snatpool members when primary blade goes offline

Component: Local Traffic Manager

Symptoms:
Arp requests not resolved for snatpool members and traffic does not go through when the primary blade becomes offline.

Conditions:
-- VIPRION platforms serving as AAA and Diameter virtual server to load-balance.
-- route-domain configured other than 0.
-- Radius authentication pool and snatpool are configured.
-- Primary blade goes offline and new Primary is not elected.

Impact:
Traffic failure when primary became offline.

Workaround:
Disable primary blade which is offline.

960133-1 : AGC 8.0 installation failure

Component: Guided Configuration

Symptoms:
Attempting to install the AGC 8.0 results in the following error:

"Failed to load IApp artifacts from f5-iappslx-waf-bot-protection: java.lang.IllegalStateException: Failed to post template to block collection: ..."

Conditions:
The AGC is upgraded to a newer version via the "Access >> Guided Configuration" -> " Upgrade Guided Configuration".

Impact:
AGC 8.0 package is not installed.

Workaround:
Important: This workaround will delete all existing iApp configurations.

1. Download the latest AGC 8.0 package.
2. Open a new browser tab (first) and navigate to "Access >> Guided Configuration"
3. Open a new browser tab (second) and navigate to iApps >> Templates: Templates LX. Select all templates and click “Delete”.
4. In the second tab navigate to iApps >> Package Management LX. Select all existing packages and click “Uninstall”.
5. In the first tab click "Upgrade Guided Configuration" click and install the downloaded package.

960029-2 : Viewing properties for IPv6 pool members in the Statistics page in the GUI returns an error

Component: TMOS

Symptoms:
While attempting to view the properties for pool members via the Statistics page in the GUI, you see an error:

Instance not found: /Common/1234:80

Conditions:
-- A pool with at least one pool member with an IPv6 address.
-- Attempting to view the IPv6 pool member's properties via the Statistics page in the GUI.

Impact:
Unable to see the pool member's properties.

Workaround:
Use TMSH to view pool member properties:

# tmsh show ltm pool <pool name> members {<pool members>}

959965-3 : Asmlogd stops deleting old protobufs

Component: Application Security Manager

Symptoms:
Protobuf files are being cleaned only when trying to write to the protobuf file and on startup.

Conditions:
This occurs during normal operation.

Impact:
/var/asmdata1 can run out of disk space.

Workaround:
None

959957-3 : Asmlogd stops deleting old protobufs

Component: Application Security Manager

Symptoms:
Asmlogd restarts and there are asmlogd errors:

asmlogd|ERR|Oct 19 13:46:35.199|6005|,,asmlogd ended unexpectedly
asmlogd|ERR|Oct 19 13:46:35.203|6005|,,Can't call method "size" on an undefined value at /usr/local/share/perl5/F5/RequestLog.pm line 1902.

Conditions:
Disk is full -- the following warnings are being displayed:

err diskmonitor[3483]: 011d0004:3: Disk partition /var/asmdata1 (slot 1) has only 0% free

Impact:
Old protobuf files are not cleaned up.

959613-2 : SIP/HTTPS monitor attached to generic-host virtual server and pool shows 'blank' reason

Component: Global Traffic Manager (DNS)

Symptoms:
When you double-monitor a Generic Host Virtual Server (pool level + virtual server level) using the same SIP/HTTPS monitor, the 'Reason' is omitted from the output. 'tmsh show gtm server <server> virtual-servers' shows a "blank" reason for monitoring failure/success.

Conditions:
Double-monitor a Generic Host virtual server (pool level + virtual server level) using the same SIP/HTTPS monitor.

Impact:
Impedes your ability to identify the failure/success reason quickly.

Workaround:
Do not use the same monitor on both the virtual server and the pool level.

959609 : Autodiscd daemon keeps crashing

Component: Advanced Firewall Manager

Symptoms:
Autodiscd daemon keeps crashing.

Conditions:
Issue is happening when high speed logging and auto discovery configuration are configured and send the traffic.

Impact:
Auto discovery feature is not working as expected

Workaround:
None.

959241-2 : Fix for ID871561 might not work as expected on the VCMP host

Component: TMOS

Symptoms:
Attempting to deploy an engineering hot fix (EHF) for ID871561 (https://cdn.f5.com/product/bugtracker/ID871561.html) fails in the same manner

Conditions:
-- Attempting to install an EHF containing a fix for ID871561 on a vCMP guest
-- The fix for ID871561 has not already been applied to the vCMP guest

Impact:
Unable to perform software installations on vCMP guests using installation media located on the vCMP host even if fix for ID871561 is available on VCMP guest.

959057-3 : Unable to create additional login tokens for the default admin user account

Component: TMOS

Symptoms:
When remote user authentication is configured, BIG-IP systems apply maximum active login token limitation of 100 to the default admin user account.

Conditions:
Remote Authentication is configured

Impact:
Unable to create more than 100 tokens for admin when remote authentication is configured

958833-1 : After mgmt ip change via GUI, brower is not redirected to new address

Component: TMOS

Symptoms:
After changing the management IP address via the GUI, the browser is not redirected, and reports Unable to connect BIG-IP device.

Conditions:
Change the Management IP address from the GUI and submit the change.

Impact:
Browser does not get redirected to the new address

Workaround:
Access the GUI by manually going to the new Management IP.

958785-5 : FTP data transfer does not complete after QUIT signal

Component: Local Traffic Manager

Symptoms:
When a QUIT signal is sent over an FTP connection to an FTP virtual server during a data transfer, the data connection is closed immediately instead of waiting until the transfer is complete.

Conditions:
- BIG-IP configured with an FTP virtual server
- A client connects to the FTP virtual server
- Client starts an FTP data transfer
- Client sends a QUIT signal before the data transfer completes.

Impact:
FTP data connections are closed prematurely, causing incomplete data transfers.

Workaround:
This does not occur if the FTP profile for the FTP virtual server has inherit-parent-profile set to enable.

958601-2 : In the GUI, searching for virtual server addresses does not match address lists

Component: TMOS

Symptoms:
In the GUI, if you filter the virtual server listing using an IP address, or part of an IP address, if there are any virtual servers that are using an address list that contains an address that matches that search string, those virtual servers will not show up in the search results.

Similarly, if you filter the virtual server listing using an IP address, or part of an IP address, if there are any virtual servers that are using an address that matches the search string, but are using a port list, those virtual servers will not show up in the search results.

Conditions:
-- Using Address Lists or Port lists with a virtual server.
-- Using the GUI to search for virtual servers based on address.

Impact:
Virtual servers that should match a search are not found.

Workaround:
None.

958325-1 : Updating DNS pool monitor via transaction leaves dangling monitor_rule in MCP DB

Component: Global Traffic Manager (DNS)

Symptoms:
Dangling monitor rule after pool deletion.

# tmsh delete gtm monitor tcp tcp_test
01070083:3: Monitor /Common/tcp_test is in use

Conditions:
Using transaction to delete pool and create pool of same name with different monitor.

Impact:
Unable to delete the remaining monitor.

Workaround:
Run:
1. # bigstart restart mcpd
Or
2. Do not combine deletion and re-create pool in the same transaction.

958157-3 : Hash collisions in fastDNS packet processing

Component: Global Traffic Manager (DNS)

Symptoms:
FastDNS packet processing might cause unexpected traffic drops.

Conditions:
-- FastDNS is in use.

The problem is more likely to occur on a systems with a low number of TMMs.

Impact:
Unexpected traffic drops

958093-3 : IPv6 routes missing after BGP graceful restart

Component: TMOS

Symptoms:
When BGP graceful restart is configured for peers in IPv4 unicast and IPv6 unicast address families, after graceful restart for both IPv4 and Ipv6 address families, routes from IPv6 unicast address family might be missing.

Conditions:
- Different BGP peers configured in IPv4 unicast and IPv6 unicast address families.
- BGP graceful restart happens for both IPv4 unicast and IPv6 unicast.

Impact:
Routes from IPv6 peers are missing. They are also not present in the RIB.

957993-2 : Unable to set a port list in the GUI for an IPv6 address for a virtual server

Component: TMOS

Symptoms:
When creating a virtual server in the GUI with an IPv6 destination address and a port list (shared object) or a source address list (shared object), the system returns an error similar to:

0107028f:3: The destination (0.0.0.0) address and mask (ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff) for virtual server (/Common/vs03-v6_dns) must be be the same type (IPv4 or IPv6).

Conditions:
-- Creating or updating a virtual server.
-- Attempting to use an IPv6 Host address with a Port List shared object or a Source Address List shared object.

Impact:
Unable to create/modify virtual server.

Workaround:
Create an Address List shared object with the IPv6 address in it and use that instead of the Host address.

957897-1 : Unable to modify gateway-ICMP monitor fields in the GUI

Component: TMOS

Symptoms:
While modifying a gateway-ICMP monitor you see the following error:

01070374:3: Cannot modify the address type of monitor /Common/<monitor_name>.

Conditions:
-- Using the GUI to modify a Gateway-ICMP monitor field.
-- The monitor is attached with a pool that has one or more pool members.

Impact:
You cannot update the Gateway-ICMP monitor fields via the GUI.

Workaround:
Use the tmsh command:
tmsh modify ltm monitor gateway-icmp <monitor_name> [<field> <new_value>]

For example, to update the description of a monitor named gw_icmp, use the following command:
modify ltm monitor gateway-icmp gw_icmp description new_description

957637-2 : Pfmand crash during bootup

Component: TMOS

Symptoms:
The pfmand process crashes and writes out a core during bootup on certain platforms.

Conditions:
-- Platforms i4000/i2000/i4800/i2800/i4600/i2600/i850.
-- BIG-IP software version is v14.1.x.

Impact:
Network connection lost while pfmand restarts.

Workaround:
None

957461-2 : Creating virtual server with IPv6 address or port list in destination should display source address in IPv6 format

Component: TMOS

Symptoms:
In the GUI, while creating a virtual server with an IPv6 address or a port list in destination, the BIG-IP system should display the source address in IPv6 format rather than IPv4 format 0.0.0.0/0.

Conditions:
This is encountered while creating a virtual server with an IPv6 address or port list in destination.

Impact:
The IPv6 address list is displayed in IPv4 notation.

Workaround:
This is a cosmetic issue. The correct addresses are used.

957321-1 : When BIG-IP contains an invalid DNS Resolver, Bot Defense might wrongly classify search engines as malicious

Component: Application Security Manager

Symptoms:
When the first DNS resolver is invalid, Bot Defense is unable to verify trusted bots, and is classifying them as malicious bots.

Conditions:
-- First DNS resolver in the list is invalid.
-- Bot Defense profile is attached to a virtual server.
-- Request from a search engine arrives.

Impact:
Bot Defense wrongly classifies valid search engines as malicious bots (and might block them if enforcement is enabled).

Workaround:
Fix the first DNS resolver in the list. It's possible that the first DNS resolver is the built in DNS resolver "f5-aws-dns".

956889-2 : /var fills up very quickly

Component: Application Security Manager

Symptoms:
Policy history files fill /var disk partition

Conditions:
Very large configuration with substantial history and config sync enabled

Impact:
ASM sync fails due to /var being full

Workaround:
The properties in '/etc/ts/tools/policy_history.cfg' file, for cleaning as a file-based configuration option, are a Support-oriented configuration option aimed to help in these cases.

956645-2 : Per-request policy execution may timeout.

Component: Access Policy Manager

Symptoms:
When attempting to access a resource that requires subsession validation, the client may receive an HTTP 503 "Service Unavailable" response, and the logs indicate that per-request policy execution time has expired.

Conditions:
Multiple connections are accessing the same subsession, triggering subsession lock contention.

Impact:
Some clients will fail to connect to their destination.

Workaround:
Add criteria to the gating criteria to enable more fine-grained subroutines to reduce subsession contention. For example, add category, or application name, to the gating criteria. In the case of API protection, consider concatenating credentials with the resource hostname (plus port).

Increase the per-request policy execution timeout value, controlled by the variable tmm.access.prp_global_timeout, to a higher value.

956625-2 : Port and port-list type are both stored in a traffic-matching-criteria object

Component: TMOS

Symptoms:
Using "tmsh load sys config replace file ..." to change a traffic matching criteria's port type from port to port-list (or vice-versa) results in both types ending up in the traffic matching criteria object.

Conditions:
-- Using traffic-matching-criteria.
-- Using "tmsh load sys config replace file ..." or "tmsh load sys config merge file ..." to change the port to a port-list (or vice-versa).

Impact:
-- System does not load the desired configuration.
-- Virtual servers may match/process more traffic than expected.

956109-2 : Modifying a traffic-matching-criteria with a port-list during a full sync may result in an incorrect configuration on the sync target

Component: TMOS

Symptoms:
In a device service cluster, changing a traffic-matching-criteria object's port configuration and then performing a full-sync will cause the sync target's traffic-matching-criteria ports to be modified incorrectly.

Once systems are in this state, further ConfigSyncs may result in these error messages:

err mcpd[6489]: 01070710:3: Database error (13), Cannot update_indexes/checkpoint DB object, class:traffic_matching_criteria_port_update status:13 - EdbCfgObj.cpp, line 127.
err mcpd[6489]: 01071488:3: Remote transaction for device group /Common/Failover to commit id 250 6869100131892804718 /Common/tmc-sync-2-bigip1.test 0 failed with error 01070710:3: Database error (13), Cannot update_indexes/checkpoint DB object, class:traffic_matching_criteria_port_update status:13 - EdbCfgObj.cpp, line 127..

Conditions:
-- Two or more BIG-IPs in a DSC.
-- Using traffic-matching-criteria, and making changes.

Impact:
BIG-IP configurations are out of sync (even though they show "In Sync"). Affected virtual servers will process more traffic than configured.

Workaround:
On an affected system, perform one of the two procedures to correct MCPD's in-memory configuration:

1. Remove the traffic-matching criteria from all virtual servers (or only affected virtual servers, if known), and then re-add the traffic-matching criteria.

2. Save the configuration and then follow the procedure in
K13030: Forcing the mcpd process to reload the BIG-IP configuration.

   tmsh save sys config
   clsh touch /service/mcpd/forceload
   clsh reboot

956025-2 : HTTP profile response-chunking "unchunk" option does not remove Content-Length from response header

Component: Local Traffic Manager

Symptoms:
When the HTTP profile response-chunking option is set to "unchunk", chunked responses will be unchunked and the Transfer-Encoding header is removed.

If the server sends a chunked response with both Transfer-Encoding and Content-Length headers, Transfer-Encoding is removed but Content-Length is not. This causes the client to receive a response with an erroneous Content-Length header.

Conditions:
- HTTP virtual server with response-chunking set to "unchunk"
- Server response with both Transfer-Encoding and Content-Length headers present

Impact:
Malformed HTTP response received by client as length of response should be determined by closure of connection, not erroneous Content-Length header.

Workaround:
Implement iRule: at HTTP_RESPONSE time, remove the Content-Length header if the Transfer-Encoding header is also present.

956013-1 : System reports{{validation_errors}}

Component: Policy Enforcement Manager

Symptoms:
A {{validation_errors}} at Subscriber Management :: Control Plane Listeners and Data Plane Listeners with ipv6 addresses

Conditions:
Specifying an IPv6 address in the expression in Subscriber Management :: Control Plane Listeners and Policy Enforcement :: Data Plane Listeners.

Impact:
Cannot access the BIG-IP GUI through IPv6 address from any web browser. Admin/User cannot enter input through GUI.

Workaround:
None.

955953-2 : iRule command 'table' fails to resume when used with Diameter 'irule_scope_msg'

Component: TMOS

Symptoms:
'table' command fails to resume causing processing of traffic to halt due to 'irule_scope_msg' causing iRule processing to proceed in a way that 'table' does not expect.

Conditions:
- iRule using 'table' command
- Diameter 'irule_scope_msg' enabled

Impact:
Traffic processing halts (no crash)

955897-2 : Configuration may fail to load with named virtual-address for 0.0.0.0 in a non-zero route domain★

Component: TMOS

Symptoms:
When reading the configuration from /config files, the BIG-IP system may fail to load the configuration regarding a virtual server with a named virtual-address for address 0.0.0.0 in a non-default route domain:

err mcpd[21812]: 0107028b:3: The source (0.0.0.0%123) and destination (0.0.0.0) addresses for virtual server (/Common/vs1) must be in the same route domain.
Unexpected Error: Loading configuration process failed.

Conditions:
-- An LTM virtual-address object with a name.
-- The virtual-address's address is 0.0.0.0 (or the keyword 'any'). The IPv6 address :: (or the keyword 'any6') is not affected.
-- The virtual-address's address is in a route domain other than route domain 0. The route domain can be the partition's default route domain.
-- An LTM virtual server that uses the affected address as its destination.

Example:
tmsh create net route-domain 123
tmsh create ltm virtual-address allzeros-rd123 address 0.0.0.0%123
tmsh create ltm virtual allzeros-rd123 destination 0.0.0.0%123:0
tmsh save sys config

Impact:
The configuration fails to load from disk when the affected objects do not yet exist in running memory or binary cache, for example, during:

- Reinstalling
- Upgrading
- Loading manual changes to the /config/*.conf files
- MCP force-reload

Other operations such as rebooting, relicensing, and reloading the same configuration (such as 'tmsh load sys config' are not affected.

Workaround:
Replace the configuration that uses a named virtual-address with the direct address. Here is an example of the configuration in bigip.conf:

ltm virtual-address allzeros-rd123 {
    address any%123
    mask any
}
ltm virtual allzeros-rd123 {
    destination allzeros-rd123:0
    mask any
    source 0.0.0.0%123
}

This can be rewritten to remove the virtual-address object, and replace the virtual server destination with the address (0.0.0.0 or 'any'):

ltm virtual allzeros-rd123 {
    destination any%123:0
    mask any
    source 0.0.0.0%123
}

955617-2 : Cannot modify properties of a monitor that is already in use by a pool

Component: Local Traffic Manager

Symptoms:
Modifying monitor properties gives error, if it is attached to a pool with Node/Pool member instance.

0107082c:3: Cannot modify the destination address of monitor /Common/my_monitor

Conditions:
-- Monitor with alias address field as default properties.
-- Pool containing a node or pool member.
-- Monitor is attached to the pool.

Impact:
Monitor properties can't be modified if they are in use by a pool.

Workaround:
Remove monitor, modify it, and then add it back.

955593-2 : "none" missing from the error string when snmp trap is configured with an invalid network type

Component: TMOS

Symptoms:
When you try to configure an SNMP trap with an invalid network type, you get a confusing error:

01070911:3: The requested enumerated (aaa) is invalid (, mgmt, other) for network in /Common/snmpd trapsess (/Common/i2_2_2_1_1)

Conditions:
SNMP trap is configured with an invalid network enum type.

Impact:
The word 'none' is not shown in the error string.

955057-2 : UCS archives containing a large number of DNS zone files may fail to restore.★

Component: TMOS

Symptoms:
This issue can manifest in the following ways:

- Failure to restore a UCS archive to the currently active boot location (i.e. restoring a backup).

- Failure to restore a UCS archive to a different boot location by means of using the cpcfg utility (or the the "Install Configuration" option when changing boot locations in the Web UI).

- Failure to restore a UCS archive as part of a software upgrade (if rolling forward the configuration was requested, which is the default BIG-IP behavior).

In all cases, error messages similar to the following example are returned to the user:

/bin/sh: /bin/rm: Argument list too long
Fatal: executing: /bin/sh -c rm -fr /var/named/config/namedb/*
Operation aborted.
/var/tmp/configsync.spec: Error installing package
Config install aborted.
Unexpected Error: UCS loading process failed.

Conditions:
This issue occurs when a large number of DNS zone files are already present in the /var/named/config/namedb directory of the boot location to which the UCS archive is being restored.

Impact:
The UCS archive fails to restore. Additionally:

- If the UCS archive was being restored on the currently active boot location, the named and zrd daemons may not be running after the failure, leading to traffic outages.

- If the UCS archive was being restored as part of an upgrade, the installation will fail and the destination boot location will be marked as failed (thus preventing a BIG-IP Administrator from activating it).

Workaround:
Depending on the failure mode, perform one of the following workarounds:

- If you were restoring a UCS archive on the currently active boot location, run the following command, and then attempt the UCS archive restore operation again:

find /var/named/config/namedb -mindepth 1 -delete

- If you encountered the failure during an upgrade, it should mean you were installing an Engineering Hotfix (otherwise the /var/named/config/namedb directory on the destination boot location would have been empty).

Installing an Engineering Hotfix will actually perform two separate installations - first the base version, and then the hotfix on top of that. Each installation restores the source location's UCS archive.

The UCS installation performed during the base installation will work, and the one performed during the hotfix installation will fail (because DNS zone files are already in place now, and they will fail to be deleted).

In this case, you can work around the issue by performing two distinct installations (to the same destination boot location). First the base version by itself, and then the hotfix installation by itself:

Perform the first installation with the liveinstall.moveconfig and liveinstall.saveconfig db keys disabled. Perform the second installation after enabling the liveinstall.moveconfig and liveinstall.saveconfig db keys again.

- If you encountered the failure while using the cpcfg utility (or equivalent WebUI functionality), take a UCS archive instead, download it off of the BIG-IP or save it in a shared directory (e.g. /var/tmp), boot the system into the destination boot location, run the below command, and then restore the UCS archive:

find /var/named/config/namedb -mindepth 1 -delete

953601-3 : HTTPS monitors marking pool member offline when restrictive ciphers are configured for all TLS protocol versions

Component: Local Traffic Manager

Symptoms:
HTTPS monitor marks pool member/nodes as down and they remain down until bigd is restarted or the monitor instance is removed and created again.

Conditions:
BIG-IP is configured with restrictive ciphers that are only compatible with TLS 1.2 (ECDH+AESGCM) but all of the TLS protocol versions are allowed. When HTTPS monitor TLS 1.0 handshake fails, due to incompatible ciphers with the server being monitored. It does not try TLS 1.2 version and marks pool members or nodes as down.

Impact:
HTTPS monitor shows pool members or nodes down when they are up.

Workaround:
Restart bigd or remove and add monitors.

953477-3 : Syncookie HW mode not cleared when modifying VLAN config.

Component: TMOS

Symptoms:
Changing VLAN configuration can cause BIG-IP get stuck in hardware syncookie mode.

Conditions:
- Changing VLAN configuration when vlan-based syncookies are active.

For a list of platforms that support hardware syncookie protection, see https://support.f5.com/csp/article/K14779

Impact:
Device is stuck in hardware syncookie mode and generates syncookies.

Workaround:
Run the following command:
tmsh restart sys service tmm

Impact of workaround: restarting tmm disrupts traffic.

953425-3 : Hardware syncookie mode not cleared when changing dos-device-vector enforcement

Component: Advanced Firewall Manager

Symptoms:
Changing DOS vector enforcement configuration can cause BIG-IP to get stuck in hardware syncookie mode.

Conditions:
- Changing DOS vector enforcement configuration when device is in global syncookie mode.

For a list of platforms that support hardware syncookie protection, see https://support.f5.com/csp/article/K14779

Impact:
Device is stuck in hardware syncookie mode and generates syncookies.

Workaround:
Run the following command:
tmsh restart sys service tmm

Impact of workaround: restarting tmm disrupts traffic.

952801 : Changing access policy from multi-domain to single domain does not send domain cookies

Component: Access Policy Manager

Symptoms:
The BIG-IP system sends cookies with no "domain" attribute set.

Conditions:
- Configure a Multidomain access profile
- Change the profile to single domain

Impact:
The BIG-IP system sends cookies with no "domain" attribute set. This causes the cookie to be not associated to a particular domain.

Workaround:
Manually remove the domain-groups config from the access profile by editing the bigip.conf.

952521-2 : Memory allocation error while creating an address list with a large range of IPv6 addresses★

Component: Advanced Firewall Manager

Symptoms:
When trying to create a large IPv6 address-list IP range either via the GUI, tmsh, or from loading a previously saved config, MCPd will temporarily experience memory exhaustion and report an error "01070711:3: Caught runtime exception, std::bad_alloc"

Conditions:
When adding an IPv6 address range that contains a very large number of IPs. This does not affect IPv4.

Impact:
The IP address range cannot be entered. If upgrading from a non-affected version of TMOS where an IP range of this type has been saved to the config, a std::bad_alloc error will be printed when loading the config after upgrading.

Workaround:
Use CIDR notation or multiple, smaller IP ranges.

950953-1 : Browser Challenges update file cannot be installed after upgrade★

Component: Application Security Manager

Symptoms:
After upgrading BIG-IP, the Browser Challenges factory default update file cannot be installed, and you see this error:

Installation error: gpg: WARNING: unsafe ownership on homedir `/usr/share/live-update/share/gpg/browser_challenges_genesis_load'gpg: encrypted with 1024-bit ELG key, ID 7C3E3CE5, created 2007-03-20 "asm_sigfile_installer"gpg: Signature made Mon Aug 2

Conditions:
The new file that comes with the installation is ready to install

Impact:
New updated cannot be installed

Workaround:
There are 2 options:
1. download a new version of the update file (if exists)
2.
   2.1 download a copy of that file from the machine to your locale machine
   2.2 rename it :
       > cp BrowserChallenges_20200722_072935.im BrowserChallenges_<CURRENT_DATE>_<CURRENT_TIME>.im
       ## the date and time are for tracking and the have to be in a specific format DATE : YYYYMMDD, TIME: HHMMSS
   2.3 upload the file and install it manually from the LiveUpdate screen.

950673-3 : Hardware Syncookie mode not cleared when deleting/changing virtual server config.

Component: TMOS

Symptoms:
Modifying a virtual server can cause BIG-IP to get stuck in hardware syncookie mode.

Conditions:
-- A virtual server is in hardware syncookie mode.
-- Modifying or deleting the virtual server

For a list of platforms that support hardware syncookie protection, see https://support.f5.com/csp/article/K14779

Impact:
Device is stuck in hardware syncookie mode and generates syncookies.

Workaround:
tmsh restart sys service tmm

Impact of workaround: restarting tmm disrupts traffic.

950305-2 : Analytics data not displayed for Pool Names

Component: Application Visibility and Reporting

Symptoms:
You cannot see reports (statistics->analytics->pool) when you choose to view by pool names.

Conditions:
This is encountered in the statistics screen.

Impact:
You can't see the statistics->analytics->pool report when you choose view by pool names.

950201 : Tmm core on GCP

Component: TMOS

Symptoms:
When BIG-IP Virtual Edition (VE) is running on Google Cloud Platform (GCP) with mergeable buffers enabled, tmm might core while passing traffic. Subsequently, the kernel locks up, which prevents the whole system from recovering.

TMM panic with this message in a tmm log file:

panic: ../dev/ndal/virtio/if_virtio.c:2038: Assertion "Valid num_buffers" failed.

Conditions:
-- VE running on GCP.
-- Mergeable buffers (mrg_rxbuf) is enabled on the guest with direct descriptors.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
You can use either of the following workarounds:

-- Use the sock driver. For more information see K10142141: Configuring the BIG-IP VE system to use the SOCK network driver :: https://support.f5.com/csp/article/K10142141

-- Request an Engineering Hotfix from F5, with mrg_rxbuf and lro turned off.

Note: Each of these workarounds have performance impact.

950153-2 : LDAP remote authentication fails when empty attribute is returned

Component: TMOS

Symptoms:
LDAP /AD Remote authentication fails and the authenticating service may crash.

The failure might be intermittent.

Conditions:
LDAP/AD server SearchResEntry includes attribute with empty or NULL value.

This can be seen in tcpdump of the LDAP communication in following ways

1. No Value for attribute . Example in tcpdump taken on affected user :

vals: 1 item
AttributeValue:

2. 1. NULL Value for attribute . Example in tcpdump taken on affected user :

vals: 1 item
AttributeValue: 00

Impact:
Logging in via the GUI will fail silently
Logging in via ssh will cause the sshd service on LTM to crash and logs will be seen under /var/log/kern.log

The logs will be similar to :

info kernel: : [460810.000004] sshd[31600]: segfault at 0 ip 00002b3abcb2ef3e sp 00007fffef3431a0 error 4 in pam_ldap.so[2b3abcb2c000+7000]
info kernel: : [460810.002036] traps: sshd[31598] general protection ip:fffffffffffffff3 sp:80000 error:0

Workaround:
There is no Workaround on the LTM side.

For LDAP, you change/add the value from none/NULL on the affected attribute to ANY dummy value which will prevent the issue

950005-2 : TCP connection is not closed when necessary after HTTP::respond iRule

Component: Local Traffic Manager

Symptoms:
HTTP does not close the TCP connection on the client if response is sent via HTTP::respond.

Conditions:
- TCP profile is used.
- HTTP profile is used.
- HTTP::respond iRule is used (via HTTP_RESPONSE_RELEASE).
- HTTP sends "Connection: close" header.

Impact:
TCP connection lives longer than needed.

Workaround:
None

949957 : RDP: Username is pre-filled with f5_apm* string after clicking on webtop resource on Mobile Clients (iOS & Android)

Component: Access Policy Manager

Symptoms:
When user connects to the virtual server using Browser on their iPhone or Android device, webtop displays RDP resource. When they click on it, if SSO is not enabled, Remote Desktop Client App pops up with username pre-filled with string starting with f5_apm.

Conditions:
-- APM Webtop is configured with Single Sign-on disabled RDP resource.
-- Access the RDP resource from iOS or Android using RDP client.

Impact:
Remote Desktop Client App pops up with username pre-filled with string starting with f5_apm.

Workaround:
User needs to clear the username field and enter the actual username.

949721-2 : QUIC does not send control frames in PTO packets

Component: Local Traffic Manager

Symptoms:
When the QUIC PTO timer fires, it may resend some in-flight data. That data will not include any in-flight control frames.

Conditions:
A control frame is in-flight when the PTO timer fires.

Impact:
Minimal. The PTO timer is a mechanism to 'get ahead' of any lost packets and if a packet containing control frames is lost, those frames will be retransmitted.

Workaround:
None.

949477-1 : NTLM RPC exception: Failed to verify checksum of the packet

Component: Access Policy Manager

Symptoms:
NTLM authentication fails with the error:

RPC exception: Failed to verify checksum of the packet.

Conditions:
-- Start nlad process with 'encryption'.
-- Configure a user, and map that user to a huge number of groups.
-- Configure NTLM front-end authentication.

Impact:
User authentication fails.

Workaround:
1. Run the 'nlad' process with '-encrypt no' in the file /etc/bigstart/startup/nlad.

2. Disable encryption for nlad:
   # vim /etc/bigstart/startup/nlad

   change:
   exec /usr/bin/${service} -use-log-tag 01620000

   to:
   exec /usr/bin/${service} -use-log-tag 01620000 -encrypt no

3. Restart nlad to make the change effective, and to force the schannel to be re-established:
   # bigstart restart nlad

949137-3 : Clusterd crash and vCMP guest failover

Component: Local Traffic Manager

Symptoms:
Clusterd crashes and a vCMP guest fails over.

Conditions:
The exact conditions under which this occurs are unknown. It can occur during normal operation.

Impact:
Memory corruption and clusterd can crash, causing failover.

Workaround:
None.

949105-2 : Error log seen on Category Lookup SNI requests for same connection

Component: Access Policy Manager

Symptoms:
Client connections are reset and you see an error in /var/log/apm : "(ERR_NOT_FOUND) Category Lookup failed or a Category Lookup agent is not present in the policy before Response Analytics"

Conditions:
-- Category Lookup agent (lookup type SNI) in the per-request policy before Request or Response Analytics agent
-- Multiple requests sent in the same SSL connection.

Impact:
Connections are reset or they follow the fallback branch for subsequent requests in the same SSL connection

948805-1 : False positive "Null in Request"

Component: Application Security Manager

Symptoms:
A false positive violation "Null in Request" is thrown erroneously.

Conditions:
-- BIG-IP receives a query string in the "Referrer" header

Impact:
False positive violation "Null in Request" is thrown

Workaround:
None

948601-3 : File object checksum attribute is not updated when an external data-group file or external monitor file is edited from GU

Component: TMOS

Symptoms:
SHA1 checksum attribute/property of the file object is not persisted/published/propagated to the MCP datastore/GUI.

Conditions:
This could be observed when an external data-group file or external monitor file definition is edited from GUI.
Below mentioned is the workflow where the issue can be seen/replicated,
System ›› File Management : Data Group File List >> FILE
Edit the "definition" field of the file object & click update.
1.) edit sys file data-group "filename"
2.) list sys file data-group "filename"
Aforementioned commands can be used from TMOS shell to understand the correct behavior that is expected when the same is done from GUI

Impact:
You are unable to identify whether the file object was modified by just validating/comparing the file object's metadata/schema property i.e. "checksum SHA1"

Workaround:
None

948113-3 : User-defined report scheduling fails

Component: Application Visibility and Reporting

Symptoms:
A scheduled report fails to be sent.

An error message with the following format may appear on /var/log/avr/monpd.log file (some parts of the error message were replaced with '.....' in here to leave only the common parts):
DB|ERROR|....... Error (err-code 1054) executing SQL string :
.....
.....
.....
Because : Unknown column ....... in 'order clause'

Conditions:
1. Using predefined-report in scheduled-report.
2. Predefined-report has more than one measure.
3. Sort-by value is different from the first measure on predefined-report

Impact:
Internal error for AVR report for ASM pre-defined.

Workaround:
First, remount /usr to read-write:
mount -o remount,rw /usr

Next, open file /usr/share/perl5/vendor_perl/F5/AVReporter/Client.pm and change the following line:
push(@measures,@{$base_request->{measures}}[0]);
to this:
push(@measures,@{$base_request->{sort_by}}[0]->{measure});

The above can be achieved with the following script-line (please first backup the Client.pm file and then verify it changed it correctly):
sed -i 's/push(@measures,@{\$base_request->{measures}}\[0\])/push(@measures,@{$base_request->{sort_by}}[0]->{measure})/' /usr/share/perl5/vendor_perl/F5/AVReporter/Client.pm

Lastly, remount /usr back to read-only:
mount -o remount,ro /usr

948101-1 : Pair of phase 2 SAs missing after reboot of standby BIG-IP device

Component: TMOS

Symptoms:
In the case of IPsec traffic-selector narrowing during tunnel negotiation, Security Associations (SAs) may not be mirrored to the Standby after the Standby is rebooted.

Conditions:
- BIG-IP systems configured in High Availability (HA).
- Mirroring is configured.
- The Standby system reboots.

Impact:
IPsec SAs may not be mirrored to the Standby device. If a failover occurs, the newly Active device cannot handle previously established tunnels.

Workaround:
Configure traffic-selectors to match exactly on both IPsec peers.

948065-3 : DNS Responses egress with an incorrect source IP address.

Component: Local Traffic Manager

Symptoms:
DNS responses over a certain size egress the BIG-IP with an incorrect source IP address set.

Conditions:
Large responses of ~2460 bytes from local BIND

Impact:
The response to the client appears to be coming from the wrong source IP address, and the request fails.

Workaround:
Change 'max-udp-size' in BIND to a smaller value reduces the size of response, which stops the fragmentation.

Note: This workaround has limitations, as some records in 'Additional Section' are truncated.

947937-2 : HTTP iRule commands may fail to execute within the "fallback-host" HTTP profile field.

Component: Local Traffic Manager

Symptoms:
The BIG-IP system can redirect a request to a fallback host when the target pool is unavailable. If the configured fallback host within the HTTP profile contains HTTP iRule commands such as HTTP::host or HTTP::uri, the corresponding HTTP request can fail. A connection reset may be encountered instead.

Conditions:
- HTTP profile with "fallback-host" profile option configured containing an HTTP iRule command.

Impact:
When utilizing the HTTP profile with "fallback-host" profile option with HTTP iRule commands, incorrect connection resets can be seen by the client instead of the correct HTTP response.

Workaround:
Attaching an iRule containing HTTP::redirect or similar command to the virtual server can be used instead of the fallback host-profile option to redirect traffic to another virtual server.

947745-1 : Tcp proxy does not ignore HUDEVT_CHILD_CONNECTED and gives an error

Component: Local Traffic Manager

Symptoms:
Tcp proxy does not ignore HUDEVT_CHILD_CONNECTED and gives an error message:
hud_tcp_serverside_handler/3676: 10.0.0.20.21 - 10.10.10.1.51147: unexpected serverside message HUDEVT_CHILD_CONNECTE

Conditions:
FTP profile is in use

Impact:
Logs entries in the log file

Workaround:
None

947529-2 : Security tab in virtual server menu renders slowly

Component: TMOS

Symptoms:
When a large number of virtual servers use the same ASM policy from a manually-created LTM Traffic policy, the Security tab of the virtual server takes a long time to load.

Conditions:
Large number of virtual servers using the same ASM policy

Impact:
Loading of Security tab of a virtual server takes a long time

Workaround:
NA

947217-5 : Fix of ID722682 prevents GTM config load when the virtual server name contains a colon★

Component: Global Traffic Manager (DNS)

Symptoms:
GTM is unable to load the configuration.

Conditions:
-- GTM has been upgraded to a version with fix for ID722682 from a version that does not have the fix for ID722682
-- A GTM server has a name with no colon
-- That GTM server has a virtual server with colon in the name
-- That virtual server is added to a pool

Impact:
GTM config file cannot be loaded successfully after upgrade.

Workaround:
Edit bigip_gtm.conf manually to delete "\\" or replace colon ":" with other non-reserved char. such as "-".

947125-2 : Unable to delete monitors after certain operations

Component: Local Traffic Manager

Symptoms:
Unable to delete monitor with an error similar to:

01070083:3: Monitor /Common/my-mon is in use.

Conditions:
-- HTTP monitors are attached directly to pool members, or node-level monitors exist.
-- Performing an operation that causes the configuration to get rebuilt implicitly, such as "reloadlic".

Impact:
Unable to delete object(s) no longer in use.

Workaround:
When the system gets into this state, save and reload the configuration:
tmsh save sys config && tmsh load sys config

946481-1 : Virtual Edition FIPS not compatible with TLS 1.3

Component: Local Traffic Manager

Symptoms:
A TLS 1.3 handshake failure occurs when using openssl's AES-GCM cipher in FIPS mode.

Conditions:
FIPS mode and attempting TLS 1.3 with cipher AES-GCM

Impact:
Handshake failure for TLS 1.3

Workaround:
Disable FIPS mode, or alternately use non AES-GCM cipher for TLS 1.3.

946185-1 : Unable to view iApp component due to error 'An error has occurred while trying to process your request.'★

Component: iApp Technology

Symptoms:
When accessing the iApp Components tab, the system presents an error similar to the following:

An error has occurred while trying to process your request.

Conditions:
-- With or without Partitions configured.
-- Navigate to GUI iApps :: Application Services : Applications, to view a custom iApp.
-- More likely to occur after upgrade.

Impact:
Unable to view/modify iApps via GUI iApps :: Application Services : Applications screen.

Workaround:
To reconfigure the iApp, do the following:

1. Navigate to the following location in the GUI:
Local Traffic :: Virtual Server List

2. Click the Application Link :: Reconfigure.

Note: Although this allows you to reconfigure an iApp, it does not provide access to the iApp application details Components page.

946121-2 : SNMP user added with password less than 8 characters through tmsh is allowed but fails during snmpwalk.

Component: TMOS

Symptoms:
Whenever snmp user is added with short password (less than 8 characters), tmsh allows this during creation but throws an error when snmpwalk is done. But in GUI it throws error "Password must have at least 8 characters." during creation itself.

Conditions:
Configuring snmp user from tmsh with password less than 8 characters leads to this problem of getting error during snmp walk.

Impact:
snmpwalk fails

Workaround:
Configure snmp user with password greater than or equal to 8 characters.

945821-1 : Remote logging conditions adjustments

Component: Application Security Manager

Symptoms:
When "Null in multi-part" violation is detected, BIG-IP logs it to remote log even when the violation is not set to blocked in Learning and Blocking settings

Conditions:
This happens when "Null in multi-part" violation is detected

Impact:
Incorrect logging to remote logs

Workaround:
None

945789-1 : Live update cannot resolve hostname if ipv6 is configured

Component: Application Security Manager

Symptoms:
Live update is not working when BIG-IP DNS is configured to use IPv6

Conditions:
BIG-IP DNS uses IPv6

Impact:
-- Unable to install latest updates to signatures.
-- Unable to import user-defined signatures.

Workaround:
If possible, use IPv4 for DNS.

945601-4 : An incorrect LTM policy rule may be matched when a policy consists of multiple rules with TCP address matching conditions.

Component: Local Traffic Manager

Symptoms:
An incorrect LTM policy rule is picked up e.g. a rule which should match first is omited.

Conditions:
Policy contains multiple rules which employ TCP address matching condition.

Impact:
Inocorrect LTM policy is applied.

945413-3 : Loop between keymgmtd and mcpd causes BIG-IP to be out of sync or in constant automatic config sync

Component: TMOS

Symptoms:
BIG-IP systems in a device group do not stay in sync if config sync is manual and constantly syncs if config sync is automatic.

The BIG-IP system constantly downloads the certificate bundle if the CA-bundle manager config includes a URL.

Conditions:
The CA-bundle manager is configured.

Impact:
The keymgmtd and mcpd process gets into a loop that causes constant config changes and if the ca-bundle-manager includes a URL, the BIG-IP system constantly downloads the bundle.

945189-2 : HTTPS monitor fails due to missing ECDHE-RSA-AES256-CBC-SHA★

Component: Local Traffic Manager

Symptoms:
After upgrade, the 'DEFAULT' cipher in the server SSL profile attached to the HTTPS monitor does not include the ECDHE-RSA-AES256-CBC-SHA cipher suite in the Client Hello.

Conditions:
After upgrade, HTTPS monitor cipherlist is read from server SSL profile ciphers and set to DEFAULT after upgrade.

Impact:
1. Upgrade breaks the SSL pool monitoring.
2. It is also possible that the pools monitoring succeeds but with different ciphers

That can cause multiple issues:

2a. After upgrade, the ciphers are of a lower strength, and now the traffic is vulnerable to attacks
2b. After upgrade, the ciphers are of a higher strength, causing BIGD overload up to control plane crashes and device reboots

Workaround:
Set ciphers as DEFAULT:+SHA:+3DES:+EDH for profile server-ssl

944485-5 : License activation through proxy server uses IP address in proxy CONNECT, not nameserver

Component: TMOS

Symptoms:
License activation http/https request has the license server IP address instead of license server domain name.

Conditions:
When the proxy server and proxy port are configured and delete default management route.

Impact:
This causes your proxy server to disallow the connection

Workaround:
None.

944381-1 : Dynamic CRL checking for client certificate is not working when TLS1.3 is used.

Component: Local Traffic Manager

Symptoms:
In SSL reverse proxy, dynamic CRL checking for client certificate is not working when TLS 1.3 handshake is used.
The SSL handshake successfully completed even though the client certificate is revoked.

Conditions:
-- Dynamic CRL checking enabled on a client-ssl profile
-- The client-side SSL handshake uses TLS1.3.

Impact:
The handshake should fail but complete successfully

944173-2 : SSL monitor stuck does not change TLS version

Component: Local Traffic Manager

Symptoms:
The SSL monitor remains in the current TLS version and does not switch to another version when a server changes.

Conditions:
-- SSL monitor configured.
-- Server configuration changes from TLSv1.2 to TLSv1.

Impact:
Pool members marked down.

Workaround:
Use the In-TMM monitor.

944121-1 : Missing SNI information when using non-default domain https monitor running in tmm mode

Component: In-tmm monitors

Symptoms:
In-tmm https monitors do not send the SNI (Server Name Indication) information for non-default route domain pool members.

Conditions:
-- SNI is configured in serverssl profile a
-- serverssl profile is assigned to in-tmm https monitors
-- https monitors are monitoring pool members that are in a non-default route domain.

Impact:
The TLS connection might fail.

Workaround:
None

944093-2 : Maximum remaining session's time on user's webtop can flip/flop

Component: Access Policy Manager

Symptoms:
When an Access Policy is configured with Maximum Session Timeout, the rendered value of maximum remaining session's time can flip/flop in seconds on a user's webtop

Conditions:
Access Policy is configured with Maximum Session Timeout >= 60000 secs

Impact:
End users will see the remaining time being continually reset.

944029-1 : Support challenge response agent to handle Access-Challenge when Logon agent is not in policy

Component: Access Policy Manager

Symptoms:
In case of Multi-Factor Authentication (MFA), the challenge response is handled by the 401 response agent, in the following scenario:
-- The policy does not have logon page agent.
-- AAA/Radius server action is configured to send challenge response to the client.
-- The policy has a 401 response logon agent.

The APM end user client sees the credentials popup for 401 response.

After entering and sending credentials (challenge response code received from RSA server via email or SMS), the Access Policy action fails.

Conditions:
-- Challenge response via RSA server or other.
-- Logon Page logon agent not implemented.

Impact:
Unable to use challenge response sent by RSA (or AAA RADIUS server).

Workaround:
None

943945 : Incorrect Error message in /var/log/ltm when HTTP::respond is used in ADAPT_REQUEST_RESULT iRule event

Component: Local Traffic Manager

Symptoms:
When HTTP::respond is used in ADAPT_REQUEST_RESULT in iRule event, an error message "http_process_state_prepend - Invalid action:0x10a071 clientside" is observed in /var/log/ltm log.

Since HTTP::respond is not supported in ADAPT_REQUEST_RESULT, a better tcl error should be shown in /var/log/ltm like "TCL error: /Common/AVScan_Content <ADAPT_REQUEST_RESULT > - Illegal argument. Can't execute in the current context"

Conditions:
This can occur when HTTP::respond is used in ADAPT_REQUEST_RESULT:

when ADAPT_REQUEST_RESULT {
    if {[ADAPT::result] contains "respond"} {
        HTTP::respond 403 -version auto ...
    }
}

Impact:
TCL error messages don't give adequate information to explain what triggered the TCL error.

943793-2 : Neurond continuously restarting

Component: TMOS

Symptoms:
Neurond continuously restarts.

Conditions:
-- BIG-IP iSeries hardware platform
-- issuing the command "service --status-all"

Impact:
Neuron communications will be impacted

943641-1 : IKEv1 IPsec in interface-mode may fail to establish after ike-peer reconfiguration

Component: TMOS

Symptoms:
After changing an element of the ike-peer configuration, such as the pre-shared secret, the related IPsec interface mode tunnel can no longer forward packets into the tunnel.

Conditions:
-- IKEv1.
-- IPsec policy in interface mode.
-- Configuration change or a new configuration.

Impact:
When the problem is exhibited on a BIG-IP Initiator, ISAKMP negotiation fails to start when interesting traffic arrives. No messages are written to /var/log/racoon.log.

When the problem is exhibited on a BIG-IP Responder, the IPsec tunnel successfully establishes, but the BIG-IP fails to forward any interesting traffic into the established tunnel. No useful log messages are seen.

Note: 'Interesting traffic' is packets that match a traffic-selector.

Workaround:
Run 'bigstart restart tmm' or reboot.

943597-2 : 'Upper Bound' and 'Lower Bound' thresholds are not displayed in Connections line chart

Component: TMOS

Symptoms:
On the dashboard, the line chart of 'Throughput', 'CPU Usage', and 'Memory Usage' can show the line of thresholds that indicates 'Upper Bound' and 'Lower Bound', but there is no line of thresholds on the line chart of 'Connections'.

Conditions:
Create a custom line chart for 'Connections' that includes 'Upper Bound' and 'Lower Bound'.

Impact:
Line Chart of 'Connections' does not display 'Upper Bound' and 'Lower Bound' thresholds.

Workaround:
None.

943577-2 : Full sync failure for traffic-matching-criteria with port list under certain conditions

Component: TMOS

Symptoms:
Performing a full configuration sync with traffic-matching-criteria (TMC) under specific conditions fails with errors similar to:

err mcpd[6489]: 01070710:3: Database error (13), Cannot update_indexes/checkpoint DB object, class:traffic_matching_criteria_port_update status:13 - EdbCfgObj.cpp, line 127.
err mcpd[6489]: 01071488:3: Remote transaction for device group /Common/Failover to commit id 245 6869100131892804717 /Common/tmc-sync-2-bigip1.test 0 failed with error 01070710:3: Database error (13), Cannot update_indexes/checkpoint DB object, class:traffic_matching_criteria_port_update status:13 - EdbCfgObj.cpp, line 127..

Conditions:
This may occur on a full-load config sync (not an incremental sync)
On the device receiving the ConfigSync:
   - a traffic-matching-criteria is attached to a virtual server
   - the traffic-matching-criteria is using a port-list
On the device sourcing the ConfigSync:
   - the same traffic-matching-criteria is attached to the same virtual server
   - the original port-list is modified (e.g. a description is changed)
   - the TMC is changed to reference a _different_ port-list

Impact:
Unable to sync configurations.

Workaround:
Copy the "net port-list" and "ltm traffic-matching-criteria" objects from the source to target system, merge them with "tmsh load sys config merge", and then perform a force-full-load-push sync from source to target.

If the BIG-IP systems are using device groups with auto-sync enabled, disable auto-sync temporarily while performing this workaround.

1. On the source system (the system whose configuration you want to sync to peer), save the configuration and extract the ltm traffic-matching-criteria and port-lists:

tmsh save sys config

(shopt -s nullglob; echo "#"; echo "# $HOSTNAME"; echo "# generated $(date +"%F %T %z")"
    cat /config{/partitions/*,}/bigip{_base,}.conf |
    awk '
        BEGIN { p=0 }
        /^(ltm traffic-matching-criteria|net port-list) / { p=1 }
        /^}/ { if (p) { p=0; print } }
        { if (p) print; }
    ' ) > /var/tmp/portlists-and-tmcs.txt

2. Copy /var/tmp/portlists-and-tmcs.txt to the target system

3. On the target system, load that file:

    tmsh load sys config replace file /var/tmp/portlists-and-tmcs.txt

3a. If loading the config file on the target system fails with the same error message seen during a ConfigSync, follow the procedure in
K13030: Forcing the mcpd process to reload the BIG-IP configuration :: https://support.f5.com/csp/article/K13030.

   tmsh save sys config
   clsh touch /service/mcpd/forceload
   clsh reboot

4. On the source system, force a full-load sync to the device-group:

    tmsh run cm config-sync force-full-load-push to-group <name of sync-group>

943473-2 : LDAP monitor's test functionality has an incorrect and non-modifiable IP address field in GUI

Component: TMOS

Symptoms:
While trying to use the monitor test page in the GUI for an LDAP monitor, the destination address field contains the value *.*(asterisk-dot-asterisk), and it is not editable.

Conditions:
-- Create an LDAP monitor.
-- Go to the Test page.

Impact:
You are unable to modify the test destination address for the LDAP monitor.

Workaround:
Use TMSH.

-- To run the test:
tmsh run /ltm monitor ldap <LDAP-Monitor-Name> destination <IP-Address>

Example: tmsh run /ltm monitor ldap myldap destination 10.10.10.10:389

-- To check test results:
tmsh show /ltm monitor ldap <LDAP-Monitor-Name> test-result
tmsh show /ltm monitor ldap myldap test-result

943441-2 : Issues in verification of Bot Defense with F5 Anti-Bot Mobile SDK

Component: Application Security Manager

Symptoms:
Verification may be incomplete when using the F5 Anti-Bot Mobile SDK with the Bot Defense profile.

Conditions:
-- Using the Bot Defense profile together with the F5 Anti-Bot Mobile SDK.
-- Enabling the Mobile Applications section in the profile.

Impact:
Mobile application verification may be incomplete.

Workaround:
None

943109-2 : Mcpd crash when bulk deleting Bot Defense profiles

Component: TMOS

Symptoms:
When bulk deleting a large number of Bot Defense profiles (around 450 profiles) using TMSH, mcpd could crash.

Conditions:
This can be encountered during bulk delete of Bot Defenese profiles via tmsh.

Impact:
Crash of mcpd causing failover.

Workaround:
Delete the Bot Defense profiles in smaller batches to avoid the possible crash.

943045-2 : Inconsistency in node object name and node IPv6 address when IPv6 pool-member is created without providing node object name.

Component: TMOS

Symptoms:
When using Ansible to create a pool that contains an IPv6 pool member, you get an error:

0107003a:3: Pool member node and existing node cannot use the same IP Address.

Conditions:
-- Creating a new pool via Ansible.
-- A new IPv6 pool member is used.
-- The IPv6 pool member's name is not included.

Impact:
Pool creation fails.

Workaround:
If you are unable to specify the pool member name, you can use other available configuration tools like tmsh, the GUI, or AS3.

943033-2 : APM PRP LDAP Group Lookup agent has a syntax error in built in VPE expression

Component: Access Policy Manager

Symptoms:
PRP LDAP Group Lookup agent, the expression incorrectly places the 'string tolower' outside the square brackets. This causes an issue in the GUI of the LDAP Group Lookup object where the 'Simple' branch rules do not show up. You see this 'Warning':

Warning, this expression was made manually and couldn't be parsed, please use advanced tab.

Conditions:
Configure PRP with the LDAP Group Lookup agent in the Visual Policy Editor (VPE).

Impact:
Tcl expression containing a syntax error prevents the LDAP Group Lookup agent from functioning properly.

Workaround:
Go to the LDAP Group Lookup agent advanced tab and change this:
expr {[string tolower [mcget {session.ldap.last.attr.memberOf}]] contains string tolower["CN=MY_GROUP, CN=USERS, CN=MY_DOMAIN"]}

To this:
expr {[string tolower [mcget {session.ldap.last.attr.memberOf}]] contains [string tolower "CN=MY_GROUP, CN=USERS, CN=MY_DOMAIN"]}

Click finish.

Now you can click 'change', and use the 'Simple' tab and the 'Add an expression using presets' option.

942965-2 : Local users database can sometimes take more than 5 minutes to sync to the standby device

Component: Access Policy Manager

Symptoms:
Local db sync to standby devices take more than 5 minutes to sync

Conditions:
High availability (HA) setup
- add a local db user in the active device
- Wait for it to get synced to the standby device
- Sometimes the sync may not happen in 5 minutes.

Impact:
Sync of the changes to the local user db may take several minutes to sync to the standby devices.

Workaround:
None.

942793-1 : BIG-IP system cannot accept STARTTLS command with trailing white space

Component: Local Traffic Manager

Symptoms:
When an SMTPS profile is applied on a virtual server and the SMTP client sends a STARTTLS command containing trailing white space, the BIG-IP system replies with '501 Syntax error'. The command is then forwarded to the pool member, which can result in multiple error messages being sent to the SMTP client.

Conditions:
-- A virtual server is configured with an SMTPS profile.
-- The SMTP client sends a STARTTLS command with trailing spaces.

Impact:
The SMTP client is unable to connect to the SMTP server.

Workaround:
Use an SMTP client that does not send a command containing trailing white space.

942729-2 : Export of big Access Policy config from GUI can fail

Component: Access Policy Manager

Symptoms:
Export of Access Policy times out after five minutes and fails via the GUI

Conditions:
Exact conditions are unknown, but it occurs while handling a large access policy.

Impact:
Unable to redeploy configuration

Workaround:
Use thge cli to export the access policy:

K30575107: Overview of the ng_export, ng_import and ng_profile commands
https://support.f5.com/csp/article/K30575107

942665-2 : Rate limit and threshold configuration checks are inconsistent when applied to Basic DoS Vectors and Bad Actors DoS vectors

Component: Advanced Firewall Manager

Symptoms:
Inconsistent configuration checks may result in configuration not being applied correctly.

Conditions:
DoS vectors configured on the BIG-IP

Impact:
Configuration changes may not be accepted by the BIG-IP.

942549-2 : Dataplane INOPERABLE - Only 7 HSBs found. Expected 8

Component: TMOS

Symptoms:
During boot of a i15xxx system you see the message:

Dataplane INOPERABLE - Only 7 HSBs found. Expected 8

Conditions:
This issue can occur on any i15xxx device, although some devices exhibit the failure consistently and others never exhibit the issue.

Impact:
When this failure occurs in a system, the system is inoperable.

Workaround:
In order to workaround this issue, the system must be updated to install a script that is capable of resetting the hardware device during the HSB load process.

If it's not possible to install an EHF with the updated script or a version of BIG-IP with the fix, then it can be installed manually by providing the fw_update_post.init file and replacing it in /etc/init.d/fw_update_post. It is recommended that the existing fw_update_post is backed-up and this is only done in cases where the EHF or a fixed version of BIG-IP cannot be installed.

942521-7 : Certificate Managers are unable to move certificates to BIG-IP via REST

Component: Device Management

Symptoms:
You cannot upload a cert/key via the REST API if you are using a certificate manager account

Conditions:
-- Using the REST API to upload a certificate and/or key
-- User is logged in as a Certificate Manager

Impact:
Unable to upload certificates as Certificate Manager

Workaround:
Use admin account instead of using Certificate Manager account to upload certs and keys

942217-3 : Virtual server keeps rejecting connections for rstcause 'VIP down' even though virtual status is 'available'

Component: Local Traffic Manager

Symptoms:
With certain configurations, virtual server keeps rejecting connections for rstcause 'VIP down' after 'trigger' events.

Conditions:
Required Configuration:

-- On the virtual server, the service-down-immediate-action is set to 'reset' or 'drop'.

-- The pool member has rate-limit enabled.

Required Conditions:

-- Monitor flap, or adding/removing monitor or configuration change made with service-down-immediate-action.

-- At that time, one of the above events occur, the pool member's rate-limit is active.

Impact:
Virtual server keeps rejecting connections.

Workaround:
Delete one of the conditions.

Note: The affected virtual server may automatically recover upon the subsequent monitor flap, etc., if no rate-limit is activated at that time.

941381-3 : MCP restarts when deleting an application service with a traffic-matching-criteria

Component: TMOS

Symptoms:
After deleting an application service that contains a virtual server and a traffic-matching-criteria, the mcpd daemon crashes.

Conditions:
-- BIG-IP application service configuration containing a virtual server with traffic-matching-criteria
-- Application service is deleted

Impact:
Traffic and control plane disrupted while mcpd restarts.

Workaround:
None.

940885-2 : Add embedded SR-IOV support for Mellanox CX5 Ex adapter

Component: TMOS

Symptoms:
The Mellanox CX5 Ex adapter is not supported by the BIG-IP with a tmm embedded SR-IOV network driver.

Conditions:
A BIG-IP Virtual Edition system configured to use one or more Mellanox CX5 Ex adapters in SR-IOV mode.

Impact:
Systems using a CX5 Ex adapter will have to use the sock driver rather than the Mellanox driver.

940837-2 : The iRule command node is not triggered in CLIENT_ACCEPTED with HTTP/2.

Component: Local Traffic Manager

Symptoms:
The node iRule command causes the specified server node to be used directly, thus bypassing any load-balancing. However, with HTTP/2, the node command may fail to execute within the CLIENT_ACCEPTED event. This results in no traffic being sent to configured node.

Conditions:
-- A node command is used under CLIENT_ACCEPTED event.
-- An HTTP/2 profile applied to virtual server.
-- The HTTP/2 protocol in use.

Impact:
With HTTP/2 configured, the iRule node command fails to execute within the CLIENT_ACCEPTED event, causing no traffic to be sent to the desired node.

Workaround:
As a workaround, you may use HTTP_REQUEST event instead of CLIENT_ACCEPTED in iRule syntax.

940733-3 : Downgrading a FIPS-enabled BIG-IP system or running big3d_install results in a system halt★

Solution Article: K29290121

Component: Global Traffic Manager (DNS)

Symptoms:
The system fails during the boot-up process, reports a libcrypto validation error, and the system halts. The console will show this error:

Power-up self-test failures:
OpenSSL: Integrity test failed for libcrypto.so

This occurs after one of the following:
-- Upgrading a FIPS-enabled BIG-IP system, booting to a volume running an earlier software version
-- running big3d_install from a BIG-IP GTM to an LTM

Conditions:
-- FIPS-licensed BIG-IP system.
-- Upgrade.
-- Boot into an volume running an earlier version of the software.

Another way to encounter the issue is:

-- FIPS-licensed BIG-IP LTM.
-- BIG-IP DNS (GTM) device running a higher software version than the LTM.
-- Run big3d_install from GTM pointing to FIPS-licensed LTM.

Impact:
System boots to a halted state.

Workaround:
Before booting to the volume with the earlier version, delete /shared/bin/big3d.

Note: This issue might have ramifications for DNS/GTM support. DNS/GTM is not FIPS certified.

If the target software volume has already experienced this issue (the system boots to a halted state), follow the instructions in K25205233: BIG-IP System halted while booting. Halt at boot after FIPS Integrity Check Result FAIL :: https://support.f5.com/csp/article/K25205233, in addition to deleting /shared/bin/big3d.

For additional information, see K29290121: Rollback after upgrade or big3d_install may cause FIPS to halt system on boot :: https://support.f5.com/csp/article/K29290121.

940469-4 : Unsupported option in /etc/resolv.conf causes failure to sync DNS Zone configuration

Component: Global Traffic Manager (DNS)

Symptoms:
The 'gtm_add' script fail to sync configuration information from the peer when 'options inet6' is present in /etc/resolv.conf.

Conditions:
The option 'options inet6' is used in /etc/resolv.conf.

Impact:
The 'gtm_add' script removes the current config and attempts to copy over the config from the remote GTM. When the remote copy fails, the local device is left without any config.

Workaround:
Remove the 'options inet6' from /etc/resolv.conf.

940225-2 : Not able to add more than 6 NICs on VE running in Azure

Component: TMOS

Symptoms:
Azure BIG-IP Virtual Edition (VE) with more than 6 NICs fails to boot.

Conditions:
-- Standard_DS4_v2 Azure instance type.
-- Mellanox ConnectX-3 ethernet controller.
-- A greater-than-2-NIC template is used, for example https://github.com/F5Networks/f5-azure-arm-templates/tree/master/supported/standalone/n-nic/existing-stack/byol with "numberOfAdditionalNics" set.
-- Accelerated networking is enabled on two or more NICs.

Impact:
Not able to boot BIG-IP VM with 8 NICs, which should be supported for Standard_DS4_v2 instance type:
8 vCPU
28 GiB
8 Max NICs

Adding more NICs to the instance makes the device fail to boot.

Workaround:
None

940177-1 : Certificate instances tab shows incorrect number of instances in certain conditions

Component: TMOS

Symptoms:
The SSL Certificate instances tab shows an incorrect number of instances when the Cert name and the Key name match. This does not occur when the cert and key are different names.

Conditions:
-- SSL certificate and key names match
-- Viewing the SSL certificate list in the GUI

Impact:
All the custom profiles will be listed when only select instances for ca-bundle cert are expected

940161 : iCall throws error: foreign key index (name_FK) do not point at an item that exists in the database

Component: TMOS

Symptoms:
Reconfiguring existing iapp results in an error:
01070712:3: Values (ICALL_SCRIPT_/Common/my_send_stats) specified for tcl user proc graph
(ICALL_SCRIPT_/Common/my_send_stats ICALL_SCRIPT_/Common/my_send_stats:escape_json): foreign key index
(name_FK) do not point at an item that exists in the database.

Conditions:
Reconfigure existing application while iCall is in use

Impact:
Modification of a running iCall script results in an error

Workaround:
None.

939941-1 : Monitor parameter not found error

Component: Global Traffic Manager (DNS)

Symptoms:
While trying to update a monitor in the GUI, there is an error:

01020036:3: The requested monitor parameter (/Common/my_https_mon 2 RECV_STATUS_CODE=) was not found.

Conditions:
-- The GTM Monitor is created in TMSH.
-- Attempt to modify it via the GUI.

Impact:
You are unable to update monitor values using the GUI.

Workaround:
Use tmsh to modifythese monitor values.

939757-4 : Deleting a virtual server might not trigger route injection update.

Component: TMOS

Symptoms:
When multiple virtual servers share the same virtual address, deleting a single virtual server might not trigger a route injection update.

Conditions:
-- Multiple virtual servers sharing the same destination address
-- One of the virtual servers is deleted

Impact:
The route remains in the routing table.

Workaround:
Disable and re-enable the virtual address after deleting a virtual server.

939517-4 : DB variable scheduler.minsleepduration.ltm changes to default value after reboot

Component: TMOS

Symptoms:
Running the command 'tmsh list /sys db scheduler.minsleepduration.ltm'
shows that the value is -1.

The db variable 'scheduler.minsleepduration.ltm' is set to -1 on mcpd startup.

This overwrites a custom value.

Conditions:
-- The db variable 'scheduler.minsleepduration.ltm' has a non-default value set.
-- A reboot occurs.

Impact:
The db variable 'scheduler.minsleepduration.ltm' reverts to the default value. When the db variable reverts to the default value of unset -1, tmm uses more CPU cycles when idle.

Workaround:
None

939249-3 : iSeries LCD changes to secure mode after multiple reboots

Component: TMOS

Symptoms:
After repeatedly rebooting an iSeries platform, the LCD can become erroneously set to secure mode on its own, and you are unable to use the menus on the LCD.

Conditions:
-- Repeated reboots of the device.
-- The db lcd.showmenu value initially set to enable are required.
-- Other required conditions are not fully known.

Impact:
-- LCD becomes set to secure mode.
-- The bigdb variable lcd.showmenu is changed to 'disable'.

Workaround:
Run the commands:
tmsh modify sys db lcd.showmenu value disable
tmsh modify sys db lcd.showmenu value enable

This clears the secure mode of the LCD.

939209-1 : FIPS 140-2 SP800-56Arev3 compliance

Component: Local Traffic Manager

Symptoms:
BIG-IP is not compliant with a NIST revision to the SP800-56A standard for cryptographic algorithms.

Conditions:
Using cryptographic algorithms covered by this revision in a FIPS 140-2 deployment.

Impact:
BIG-IP will comply with the older standard.

939085-2 : /config/ssl/ssl.csr directory disappears after creating certificate archive

Component: Local Traffic Manager

Symptoms:
Creating a certificate archive removes the /config/ssl/ssl.csr directory.

Conditions:
This occurs while creating a certificate archive.

Impact:
Missing /config/ssl/ssl.csr directory is causing Integrity Check to fail on an intermittent basis.

Workaround:
Recreate /config/ssl/ssl.csr directory and set correct file permissions:

mkdir /config/ssl/ssl.csr
chmod 755 /config/ssl/ssl.csr/
chcon -R --reference=/config/ssl/ssl.crt/ /config/ssl/ssl.csr

938545-3 : Oversize plugin Tcl object results can result in 0-length messages and plugin crash

Component: Local Traffic Manager

Symptoms:
Bd crashes.

Conditions:
-- ASM enabled.
-- iRule used.
-- Command arguments are greater than maximum MPI message size.

Impact:
ASM traffic disrupted while bd restarts.

Workaround:
None.

938309-2 : In-TMM Monitors time out unexpectedly

Component: Local Traffic Manager

Symptoms:
When using the in-TMM monitoring feature, monitored targets (nodes/pool members) may be marked DOWN unexpectedly if there is a delay in responding to ping attempts.
Specifically, if the ping response from the target is delayed by more than the 'interval' value configured for the monitor, but less than the 'timeout' value configured for the monitor, the target may be marked DOWN.

Conditions:
This may occur when either:
-- In-TMM monitoring is enabled (sys db bigd.tmm = enable) and the monitor type uses in-TMM monitoring; OR
-- Bigd is configured to NOT reuse the same socket across consecutive ping attempts (sys db bigd.reusesocket = disable)
AND:
-- The monitored target does not respond to ping attempts within the 'interval' value configured for the monitor.

Impact:
The monitored target may be marked DOWN if it does not respond to ping attempts within the 'interval' value configured for the monitor, instead of within the 'timeout' value configured for the monitor.

Workaround:
To work around this issue, use one of the following methods:
-- Disable in-TMM monitoring and enable bigd socket reuse (sys db bigd.tmm = disable, and sys db bigd.reusesocket = enable).
-- Configure the monitor with an 'interval' value longer than the expected response time for the monitored target(s).

938145-1 : DAG redirects packets to non-existent tmm

Component: TMOS

Symptoms:
-- Connections to self-IP addresses may fail.
-- SYNs packets arrive but are never directed to the Linux host.

Conditions:
-- Provision as vCMP dedicated host.
-- Create a self-IP address with appropriate allow-service.

Impact:
Repeated attempts to connect to the self-IP (e.g., via ssh) fail.

Workaround:
None

937777-2 : The invalid configuration of using HTTP::payload in a PEM Policy may cause the TMM to crash.

Component: Local Traffic Manager

Symptoms:
The iRule command HTTP::payload is not supported for use within Policy Enforcement Manager (PEM) policies. Attempting to use this within your configuration may result in the TMM crashing.

Conditions:
-- Policy Enforcement Manager (PEM) policy containing the iRule command HTTP::payload

Impact:
Traffic disrupted while the TMM restarts.

Workaround:
Do not use the iRule command HTTP::payload within Policy Enforcement Manager (PEM) policies.

937769-2 : SSL connection mirroring failure on standy with sslv2 records

Component: Local Traffic Manager

Symptoms:
Standby device in ssl connection mirroring config does not handle sslv2 recrods correctly.

Conditions:
SSLv2 records processed by standby high availability (HA) device.

Impact:
Standby device fails handshake, active will finish handshake resulting in non mirrored connection.

937649-3 : Flow fwd broken with statemirror.verify enabled and source-port preserve strict

Component: Local Traffic Manager

Symptoms:
Flow forwarding does not work with statemirror.verify enabled and source-port is preserve strict. Depending on the number of tmms and the IP addresses/ports on the network, this causes return traffic to get dropped.

Traffic captures show packets leaving the BIG-IP system on one tmm and being returned on another. The return traffic that encounters the second tmm is dropped.

Conditions:
-- Mirroring is enabled.
-- High availability (HA) peer is connected.
-- The source-port setting is preserve-strict.
-- The statemirror.verify option is enabled.
-- There is more than one tmm.

Impact:
Server-side return traffic to the BIG-IP is dropped. This causes connection timeouts and resets.

Workaround:
-- Disable statemirror.verify, disable source-port preserve-strict, disable mirroring.

-- On BIG-IP Virtual Edition (VE), add the following to tmm_init.tcl on both units and restart tmm:
ndal ignore_hw_dag yes

937601-2 : The ip-tos-to-client setting does not affect traffic to the server.

Component: TMOS

Symptoms:
The ip-tos-to-client setting is intended to apply to client traffic only. Server traffic IP ToS values are configured on the pool using the ip-tos-to-server property.

This is a change in behavior in that previously ip-tos-to-client was loosely interpreted to apply to server traffic as well if not overwritten by the pool.

Conditions:
The ip-tos-to-client value is set in the L4/L7 profile.

Impact:
IP ToS values in traffic to the server is unmodified.

Workaround:
Use the ip-tos-to-server property on pools to change IP ToS values to the server.

Alternatively, use an iRule to set the IP ToS to the server. For example:
when SERVER_CONNECTED {
IP::tos 63
}

937573-3 : Connections drop in virtual server with Immediate Action On Service Down set to Drop

Component: Local Traffic Manager

Symptoms:
In a virtual server configured with Immediate Action On Service Down set to Drop and an iRule to pick a pool different from the one attached to the virtual server, if the default pool is attached in an offline state, connections are always dropped even when the default pool becomes available later.

Conditions:
- Virtual server configured with Immediate Action On Service Down set to Drop.
- An iRule selects a different pool from the one attached to the virtual server.

Impact:
Connections are silently dropped.

Workaround:
Change the virtual server's Immediate Action On Service Down setting to None.

937541-2 : Wrong display of signature references in violation details

Component: Application Security Manager

Symptoms:
The number '1' is added to the signature reference in violation details in the Request Log.

Conditions:
You click the '?' icon near signature name to view signature details and there are references for this signature

Impact:
The number 1 is shown before the link

937481-2 : Tomcat restarts with error java.lang.OutOfMemoryError

Component: TMOS

Symptoms:
In the GUI, while trying to list a large configuration, tomcat restarts with error java.lang.OutOfMemoryError: Java heap space due to a large read operation.

Conditions:
-- From the GUI, navigate to Local Traffic :: Pools :: Pool List.
-- The configuration contains approximately 10,000 objects (objects include pools, nodes, virtual servers, etc.).

Impact:
When the system attempts to list the large configuration, tomcat restarts, resulting in 503 error.

Workaround:
Use the provision.tomcat.extramb database variable to increase the maximum amount of Java virtual memory available to the tomcat process.

Impact of workaround: Allocating additional memory to Apache Tomcat may impact the performance and stability of the BIG-IP system. You should perform this procedure only when directed by F5 Technical Support after considering the impact to Linux host memory resources.

-- Using a utility such as free or top, determine if you have enough free memory available to use this procedure.

For example, the following output from the free utility shows 686844 kilobytes available:
total used free shared buffers cachedMem:
16472868 15786024 686844 807340 827748 2543836
-/+ buffers/cache: 12414440 4058428
Swap: 1023996 0 1023996

-- View the current amount of memory allocated to the tomcat process by typing one of the following commands:
ps | grep " -client" | egrep -o Xmx'[0-9]{1,5}m'

The command output appears similar to the following example:

Xmx260m
Xmx260m

-- View the current value of the provision.tomcat.extramb database variable by typing the following command
tmsh list /sys db provision.tomcat.extramb

-- Set the provision.tomcat.extramb database variable to the desired amount of additional memory to be allocated using the following command syntax:
modify /sys db provision.tomcat.extramb value <MB>

-- If the device is part of a high availability (HA) configuration, the provision.tomcat.extramb database value should be synchronized to the peer devices from the command line. To run the ConfigSync process, use the following command syntax:
tmsh run /cm config-sync <sync_direction> <sync_group>

For example, the following command pushes the local device's configuration to remote devices in the Syncfailover device group:

tmsh run /cm config-sync to-group Syncfailover

-- Restart the tomcat process by typing the following command:
restart /sys service tomcat

937445-1 : Incorrect signature context logged in remote logger violation details field

Component: Application Security Manager

Symptoms:
An incorrect context (request) is logged for URL signatures in the violation details field.

Conditions:
-- ASM is running with a remote logger that has the violation_details field assigned.
-- A URL signature is matched.

Impact:
The logs do not provide the correct information, which might result in confusion or the inability to use the logged information as intended.

Workaround:
None.

937213 : Virtual Server is not created when a new HTTPS virtual server is defined with a new security policy

Component: Application Security Manager

Symptoms:
Virtual Server is not created when a new HTTPS virtual server is defined with a new security policy using GUI page.

Conditions:
- In GUI open "create new policy" page
- Assign a policy name in "Policy Name"
- Assign "Fundamental" for "Policy Template"
- Choose "Configure new virtual server" in "Virtual Server"
- Select "HTTPS" for "What type of protocol does your application use?"
- Choose an IP address and port 443 for "HTTPS Virtual Server Destination"
- Choose an IP address and port 443 for "HTTPS Pool Member"
- "clientssl" for "SSL Profile (Client)"
- "serverssl" for "SSL Profile (Server)"
- click on "Save" button to create new policy

Impact:
The virtual server is not created when you create the policy, and HTTPS security will not be applied to this newly created security policy.

Workaround:
Go to the Local Traffic section and create a HTTPS Virtual Server manually. After that, assign the security policy to the Virtual Server.

936777-2 : Old local config is synced to other devices in the sync group.

Component: Global Traffic Manager (DNS)

Symptoms:
Newly added DNS/GTM device may sync old local config to other devices in the sync group.

Conditions:
Newly added DNS/GTM device has a more recent change than other devices in the sync group.

Impact:
Config on other DNS/GTM devices in the sync group are lost.

Workaround:
You can use either of the following workarounds:

-- Make a small DNS/GTM configuration change before adding new devices to the sync group.

-- Make a small DNS/GTM configuration change on the newly added device to re-sync the correct config to other DNS/GTM devices.

936557-2 : Retransmissions of the initial SYN segment on the BIG-IP system's server-side incorrectly use a non-zero acknowledgement number when Verified Accept is enabled.

Component: Local Traffic Manager

Symptoms:
As the BIG-IP system attempts to open a TCP connection to a server-side object (e.g., a pool member), retransmissions of the initial SYN segment incorrectly use a non-zero acknowledgement number.

Conditions:
This issue occurs when the following conditions are true:

-- Standard TCP virtual server.

-- TCP profile with Verified Accept enabled.

-- Receipt of the client's ACK (as part of the client-side TCP 3-way handshake) is delayed. Due to Verified Accept being enabled, this delay causes the BIG-IP system to retransmit its SYN to the server until the client's ACK is received.

Impact:
Depending on the specific server implementation, or the security devices present on the BIG-IP system's server-side before the server, a SYN containing a non-zero acknowledgement number may be rejected. In turn, this may cause connections to fail to establish.

Workaround:
If compatible with your application and specific needs, you can work around this issue by disabling Verified Accept in the TCP profile.

936441-2 : Nitrox5 SDK driver logging messages

Component: Local Traffic Manager

Symptoms:
The system kernel started spontaneously logging messages at an extremely high rate (~3000 per second):

Warning kernel: EMU(3)_INT: 0x0000000000000020
warning kernel: sum_sbe: 0
warning kernel: sum_dbe: 0
warning kernel: sum_wd: 0
warning kernel: sum_gi: 0
warning kernel: sum_ge: 0
warning kernel: sum_uc: 1

The above set of messages seems to be logged at about 2900-3000 times a second.

These messages continue after TMM fails its heartbeat and is killed. The system is rebooted by the host watchdog.

Conditions:
These messages are triggered by Nitrox5 driver when EMU microcode cache errors corrected by hardware.

Impact:
High rate of logging messages. The tmm heartbeat eventually fails, and tmm is restarted. Traffic disrupted while tmm restarts.

Workaround:
None.

936417-3 : DNS/GTM daemon big3d does not accept ECDH or DH ciphers

Component: Global Traffic Manager (DNS)

Symptoms:
The DNS/GTM big3d daemon does not accept ECDH or DH ciphers.

Conditions:
Connections to big3d with ECDH or DH ciphers.

Impact:
ECDH/DH ciphers do not work with big3d.

Workaround:
Do not use ECDH/DH ciphers.

936361-1 : IPv6-based bind (named) views do not work

Component: Global Traffic Manager (DNS)

Symptoms:
Bind does not match IPv6 addresses configured for a zone view, and returns REFUSED responses, rather than the
expected answers.

After enabling debug logging in bind (see K14680), the apparent source address of the IPv6 DNS requests shows as being in the fe80::/96 range, rather than the IPv6 source address that sent the request.

For example:

debug 1: client @0x579bf188 fe80::201:23ff:fe45:6701%10#4299: no matching view in class 'IN'

Conditions:
- BIG-IP DNS is provsioned
- One or more ZoneRunner views is defined using IPv6 addresses.
- A DNS query is sent from an IPv6 source address

Impact:
You cannot use DNS views in bind (zonerunner) based on IPv6 addresses.

Workaround:
If possible, use only IPv4 addresses to define views for DNS queries

936093-2 : Non-empty fipserr files loaded from a UCS archive can cause a FIPS BIG-IP platform to remain offline

Component: TMOS

Symptoms:
Loading a UCS file with non-empty fipserr files can cause a FIPS-based system to remain offline.

Conditions:
-- Using a BIG-IP with a Platform FIPS license.
-- Loading a UCS file with a non-empty fipserr file.

Impact:
System is completely offline with spurious 'fipserr' failures, even after loading the UCS file.

Workaround:
Before creating a UCS archive, truncate the following files so they have zero size:

/config/f5_public/fipserr
/var/named/config/f5_public/fipserr
/var/dnscached/config/f5_public/fipserr

This can be accomplished using a command such as:

truncate -c -s0 /config/f5_public/fipserr /var/named/config/f5_public/fipserr /var/dnscached/config/f5_public/fipserr

935945-1 : GTM HTTP/HTTPS monitors cannot be modified via GUI

Component: Global Traffic Manager (DNS)

Symptoms:
GUI reports an error when modifying DNS/GTM HTTP/HTTPS monitors:

01020036:3: The requested monitor parameter (/Common/http-default 2 RECV_STATUS_CODE=) was not found.

Conditions:
RECV_STATUS_CODE has never been set for the DNS/GTM HTTP/HTTPS monitors.

Impact:
Not able to make changes to DNS/GTM HTTP/HTTPS monitors through GUI.

Workaround:
If 'recv-status-code' has never been set, use tmsh instead.

Note: You can set 'recv-status-code' using tmsh, for example:

tmsh modify gtm monitor http http-default recv-status-code 200

935865-5 : Rules that share the same name return invalid JSON via REST API

Component: Advanced Firewall Manager

Symptoms:
When retrieving rule stats on a firewall policy, if two rules that share the same name but one of which is directly attached to the policy while the other is attached via a rule list, then a invalid JSON is returned. The JSON has identical keys for each entry associated with the rule. This is an invalid JSON structure that cannot be parsed correctly (Or data for one of the rules is lost)

Conditions:
A firewall policy that has one of rule directly attached to the policy while the other is attached via a rule list, and both rules share the same name.

Impact:
Invalid JSON structure returned for stat REST API call

Workaround:
Ensure that no rule shares its name with another rule.

935793-2 : With mirroring enabled on a SIP virtual server, connections on the standby are reset with MBLB internal error (Routing problem)★

Component: Local Traffic Manager

Symptoms:
When a virtual server with a SIP profile has mirroring enabled, connections on the standby unit will be removed shortly after being created. If tm.rstcause.log is enabled the reset cause message appears similar to the following:

-- err tmm1[18383]: 01230140:3: RST sent from 10.2.207.208:5080 to 10.2.207.201:31597, [0x2c1c820:1673] MBLB internal error (Routing problem).
-- err tmm1[18383]: 01230140:3: RST sent from 10.2.207.209:51051 to 10.2.207.202:5080, [0x2c1c820:931] MBLB internal error.

Conditions:
-- BIG-IP Virtual Edition (VE) running on 2000/4000 platforms using RSS hash.
-- Platforms with more than 1 tmm.

Impact:
Mirrored connections on the standby unit are removed.

Workaround:
-- On BIG-IP VE, add the following to tmm_init.tcl on both units and restart tmm:
ndal ignore_hw_dag yes

935769-3 : Upgrading / Rebooting BIG-IP with huge address-list configuration takes a long time

Component: Advanced Firewall Manager

Symptoms:
Version upgrade takes more time than usual when the config contains address-lists with a lot of IP addresses. The same delay will be observed with 'tmsh load sys config' as well.

Conditions:
-- Configure address-list with 10K to 20K IP addresses or address ranges or subnets.
-- Attempt upgrade / reboot of the platform.

Impact:
Version upgrade / 'tmsh load sys config' process takes a long time than usual.

Workaround:
1) Convert continuous individual addresses in the address-lists to IP address ranges and subnets if possible.

2) Remove the huge address-lists from config before the upgrade and add back after the upgrade process is finished.

935485-2 : BWC: flows might stall when using dynamic BWC policy

Component: TMOS

Symptoms:
When multiple flows are passing through the single instance of BWC policy, one or more flows might stall for a few seconds or more. The fairness among the flows is also affected.

Conditions:
-- BWC dynamic policy is enabled.
-- Multiple flows are passing through a single instance of the BWC dynamic policy.

Impact:
Some of the flows may stall.

Workaround:
None.

935249-2 : GTM virtual servers have the wrong status

Component: Global Traffic Manager (DNS)

Symptoms:
GTM virtual servers have the wrong status (up when they should be down, or down when they should be up).

Conditions:
-- The GTM virtual servers are monitored with an HTTP or HTTPS monitor that performs HTTP status matching.

-- The status code (for example, 200) being searched for in the response appears elsewhere than in the first line (for example, in a following header).

Impact:
The system incorrectly matches the status code in a response line which is not the Status-Line. As a result, the availability status reported for a virtual server may be incorrect. This may cause the GTM system to send traffic to unsuitable resources causing application disruptions.

Workaround:
You can work around this issue by not performing HTTP status matching in your HTTP/HTTPS GTM monitors.

935193-1 : With APM and AFM provisioned, single logout ( SLO ) fails

Component: Local Traffic Manager

Symptoms:
SAML Single log out (SLO) fails on BIG-IP platforms. The SAML module on the BIG-IP system reports following error messages:

-- SAML SSO: Error (12) Inflating SAML Single Logout Request
-- SAML SSO: Error (12) decoding SLO message
-- SAML SSO: Error (12) extracting SAML SLO message

Conditions:
Failures occur with Redirect SLO.

Impact:
SAML single logout does not work.

Workaround:
Use POST binding SLO requests.

935177-2 : IPsec: Changing MTU or PMTU settings on interface mode tunnel cores tmm

Component: TMOS

Symptoms:
TMM crashes when the maximum transmission unit (MTU) or 'Use PMTU' setting is changed while passing IPsec traffic.

Conditions:
-- IPsec tunnel configured and passing traffic.
-- The MTU or 'Use PMTU' setting for the IPsec tunnel (in interface mode) is changed.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not change MTU or PMTU settings for the tunnel while it is passing traffic.

The settings can be changed while passing traffic, but TMM may crash very soon after the change. If the settings are changed and TMM does not crash soon after, then it will not spontaneously crash at some later point.

934697-3 : Route domain not reachable (strict mode)

Component: Local Traffic Manager

Symptoms:
Network flows are reset and errors are found in /var/log/ltm:

Route domain not reachable (strict mode).

Conditions:
This might happen in either of the following scenarios:
Scenario 1
==========
-- LTM with iRules configured.
-- The iRule directs traffic to a node that is in a route domain.

Scenario 2
==========
-- LTM with an LTM policy configured.
-- The policy directs traffic to a node that is in a route domain.

Impact:
Traffic is not sent to the node that is in a route domain.

The iRule 'node' method and/or LTM policy 'node' specification require a route_domain to be specified in order for the traffic to be sent to a node that is assigned to a route domain.

Workaround:
Specify the node along with Route domain ID.

-- For iRules, change from this:
when HTTP_REQUEST {
node 10.10.10.10 80
}

To this (assuming route domain 1):
when HTTP_REQUEST {
node 10.10.10.10%1 80
}

-- For LTM policies, change from this:
actions {
    0 {
        forward
        select
        node 10.2.35.20
    }
}

To this (assuming route domain 1):
actions {
    0 {
        forward
        select
        node 10.2.35.20%1
    }
}

933405-2 : Zonerunner GUI hangs when attempting to list Resource Records

Solution Article: K34257075

Component: Global Traffic Manager (DNS)

Symptoms:
Zonerunner GUI hangs when attempting to list Resource Records; mcpd times out.

Conditions:
Attempt to list Resource Records in Zonerunner GUI.

Impact:
Zonerunner hangs.

Workaround:
Zonerunner GUI is unusable until this issue is resolved. Use tmsh.

933329-2 : The process plane statistics do not accurately label some processes

Component: TMOS

Symptoms:
The plane process statistics can be used to track the statistics of processes even though the process ID has changed over time. The processes are characterized as belonging to the control plane, data plane, or analysis plane. Some of the processes are incorrectly labeled.

Conditions:
Viewing the plane process statistics when diagnosing plane usage on the BIG-IP system.

Impact:
The percentage of usage of each plane can be confusing or incorrect.

Workaround:
None.

933129-2 : Portal Access resources are visible when they should not be

Component: Access Policy Manager

Symptoms:
For Access Policy created with Customization type: modern, Portal Access resource is still present on user's webtop after the checkbox "Publish on Webtop" is disabled in config

Conditions:
-- Access Policy created with Customization type: modern
-- Disable the checkbox "Publish on Webtop" for any Portal Access resource

Impact:
Disabled Portal Access resource visible on the webtop when it should be hidden.

Workaround:
Re-create Access Policy with Customization type: standard

932893-2 : Content profile cannot be updated after redirect from violation details in Request Log

Component: Application Security Manager

Symptoms:
BIG-IP issues a redirect to the content profile form that contains relevant violation details in the Request Log. If you follow this redirect and try to update profile, the action fails.

Conditions:
This occurs if you follow the redirect to the content profile page from the violation details page in the Request Log, and then try to update the profile

Impact:
You are unable to update the content profile.

Workaround:
Go to the list content profile page, and update the content profile from there.

932857-2 : Delays marking Nodes or Pool Members DOWN with in-TMM monitoring

Component: Local Traffic Manager

Symptoms:
When configured with a large number of in-TMM monitors, Nodes or Pool Members may not be marked DOWN immediately after the configured timeout period once the target stops responding to pings.

Conditions:
This may occur when:
-- In-TMM monitoring is enabled (via sys db bigd.tmm).
-- A large number of Nodes and/or Pool Members (several hundreds or thousands) are configured and monitored.

Impact:
Nodes or Pool Members which are not responsive may not be marked DOWN in a timely fashion.

Workaround:
You can work around this issue by disabling in-TMM monitoring, at the expense of decreased monitoring performance (higher CPU usage by the bigd daemon).

932553-4 : An HTTP request is not served when a remote logging server is down

Component: Local Traffic Manager

Symptoms:
BIG-IP systems provide an option to sanitize HTTP traffic via the http_security profile. When the profile is configured to alarm on a violation, it is possible that a connection to the violating client is reset if a remote logging server is marked down.

Conditions:
-- A BIG-IP system has an HTTP profile and and an http_security profile with the alarm option set.
-- A remote logging server is configured via a BIG-IP pool.
-- The pool has a monitor that marks all the pool members down.
-- A request with an HTTP violation is processed and triggers an alarm configured in the http_security profile.

Impact:
-- A TCP connection to a client is reset by the BIG-IP system.
-- The web page may not render, or may not render as expected.
-- Data are not delivered to a server with a POST request.

Workaround:
None.

932461-3 : Cert update on server SSL profile on HTTPS monitor: BIG-IP not using the updated certificate.

Component: Local Traffic Manager

Symptoms:
If you overwrite the certificate that is configured on the server SSL profile and used with the HTTPS monitor, the BIG-IP system still uses an old certificate.

After you update the certificate, the stored certificate is incremented, but monitor logging indicates it is still using the old certificate.

Conditions:
--Create a pool with an HTTPS pool member.
--Create an HTTPS monitor with cert and key.
--Assign the HTTPS monitor to the HTTPS pool.
--Update the certificate via GUI or tmsh.

Impact:
The monitor still tries to use the old certificate, even after the update.

Workaround:
Use either of the following workarounds:

-- Restart bigd:
bigstart restart bigd

-- Modify the server SSL profile cert key, set it to 'none', and switch back to the original cert key name.

The bigd utility successfully loads the new certificate file.

932213-2 : Local user db not synced to standby device when it is comes online after forced offline state

Component: Access Policy Manager

Symptoms:
Local user db is not synced to the standby device when it comes online after being forced offline.

Conditions:
Valid high availability (HA) configuration.
- Make the standby device forced offline
- create a new local db user in the online device
- bring back the standby device online.

Impact:
The newly created user is not synced to the standby device unless localdbmgr is restarted on the standby.

Workaround:
None

932189-3 : Incorrect BD Swap Size units on ASM Resources chart

Component: Application Visibility and Reporting

Symptoms:
The 'BD Swap Size' reported on the 'Security :: Reporting : ASM Resources : Memory Utilization' page is much too high and incorrect.

Conditions:
ASM provisioned.

Impact:
Graphically reported BD swap memory usage is incorrect.

Workaround:
None.

932137-5 : AVR data might be restored from non-relevant files in /shared/avr_afm partition during upgrade

Component: Application Visibility and Reporting

Symptoms:
After upgrade, AFM statistics show non-relevant data.

Conditions:
BIG-IP system upgrade
-- Leftovers files remain in /shared/avr_afm partition from other versions.

Impact:
Non-relevant data are shown in AFM statistics.

Workaround:
Delete the non-relevant data manually from MariaDB/MySQL.

932133-2 : Payloads with large number of elements in XML take a lot of time to process

Component: Application Security Manager

Symptoms:
ASM experiences high CPU and latency usage while processing a large XML request.

Conditions:
-- ASM provisioned
-- HTTP request with a large XML payload (several MB) is sent to the backend server which triggers the XML parser.

Impact:
High CPU and latency occurs while bd processes the payload. This may cause a bottleneck for different requests that arrive concurrently with the large XML payload request.

Workaround:
None

932045-3 : Memory leak when creating/deleting LTM node object

Component: Local Traffic Manager

Symptoms:
A memory leak occurs when creating/deleting an LTM node object.

Conditions:
-- Create a node object.
-- Delete the node object.

Impact:
This gradually causes tmm memory pressure, and eventually severe outcome is possible such as aggressive mode sweeper and tmm restart. Traffic disrupted while tmm restarts.

Workaround:
Refrain continuous creation/deletion of LTM nodes.

931629-2 : External trunk fdb entries might end up with internal MAC addresses.

Component: TMOS

Symptoms:
The vCMP host might have external trunk with internal MAC addresses. This is visible via 'tmsh show net fdb'.

Conditions:
-- vCMP is provisioned and has guests deployed on it.
-- vCMP host uses trunks.
-- Create VLANs using trunks and assign it to guests.
-- Guests need to be in high availability (HA) configuration.

Impact:
Traffic processing is disrupted.

Workaround:
None.

931469-7 : Redundant socket close when half-open monitor pings

Component: Local Traffic Manager

Symptoms:
Sockets and log files are closed and re-opened twice instead of one time when the half-open TCP monitor pings successfully.

Conditions:
This occurs when the half-open monitor pings successfully.

Impact:
Minor performance impact.

Workaround:
None.

931149-1 : Some RESOLV::lookup queries, including PTR lookups for RFC1918 addresses, return empty strings

Component: Global Traffic Manager (DNS)

Symptoms:
RESOLV::lookup returns an empty string.

Conditions:
The name being looked up falls into one of these categories:

-- Forward DNS lookups in these zones:
    - localhost
    - onion
    - test
    - invalid

-- Reverse DNS lookups for:
    - 127.0.0.0/8
    - ::1
    - 10.0.0.0/8
    - 172.16.0.0/12
    - 192.168.0.0/16
    - 0.0.0.0/8
    - 169.254.0.0/16
    - 192.0.2.0/24
    - 198.51.100.0/24
    - 203.0.113.0/24
    - 255.255.255.255/32
    - 100.64.0.0/10
    - fd00::/8
    - fe80::/10
    - 2001:db8::/32
    - ::/64

Impact:
RESOLV::lookup fails.

Workaround:
Use a DNS Resolver ('net dns') and RESOLVER::name_lookup / DNSMSG:: instead of RESOLV::lookup:

1. Configure a local 'net dns' resolver, replacing '192.88.99.1' with the IP address of your DNS resolver:

    tmsh create net dns-resolver resolver-for-irules answer-default-zones no forward-zones add { . { nameservers add { 192.88.99.1:53 } } }

2. Use an iRule procedure similar to this to perform PTR lookups for IPv4 addresses:

proc resolv_ptr_v4 { addr_v4 } {
    # Convert $addr_v4 into its constituent bytes
    set ret [scan $addr_v4 {%d.%d.%d.%d} a b c d]
    if { $ret != 4 } {
        return
    }

    # Perform a PTR lookup on the IP address $addr_v4, and return the first answer
    set ret [RESOLVER::name_lookup "/Common/resolver-for-irules" "$d.$c.$b.$a.in-addr.arpa" PTR]
    set ret [lindex [DNSMSG::section $ret answer] 0]
    if { $ret eq "" } {
        # log local0.warn "DNS PTR lookup for $addr_v4 failed."
        return
    }

    # Last element in '1.1.1.10.in-addr.arpa. 600 IN PTR otters.example.com'
    return [lindex $ret end]
}

-- In an iRule, instead of:
    RESOLV::lookup @192.88.9.1 $ipv4_addr
Use:
    call resolv_ptr_v4 $ipv4_addr

931033-1 : Device ID Deletions anomaly might be raised in case of browser/hardware change

Component: Application Security Manager

Symptoms:
-- Valid users complain they are unable to connect, or they are required to do CAPTCHA frequently.
-- On the BIG-IP device, 'Device ID Deletion' violations are being raised.

Conditions:
-- Bot Defense Profile with 'Device ID' mode set to 'Generate After Access' is attached to the virtual server.
-- Some change in the browser or computer hardware occurs.
-- Surfing to multiple qualified pages at the same time.

Impact:
Valid requests might be mitigated.

Workaround:
Raise the threshold of 'Device ID Deletion' anomaly (recommended value according to the webserver, is approximately 4).

930825-4 : System should reboot (rather than restart services) when it sees a large number of HSB XLMAC errors

Component: TMOS

Symptoms:
The following symptoms may be seen when the HSB is experiencing a large number of XLMAC errors and is unable to recover from the errors. After attempting XLMAC recovery fails, the current behavior is to failover to the peer unit and go-offline and down links.

This can be seen the TMM logs:
-- notice The number of the HSB XLMAC recovery operation 11 or fcs failover count 0 reached threshold 11 on bus: 3.
-- notice high availability (HA) failover action is triggered due to XLMAC/FCS errors on HSB1 on bus 3.
-- notice HSBE2 1 disable XLMAC TX/RX at runtime.
-- notice high availability (HA) failover action is cleared.

Followed by a failover event.

Conditions:
It is unknown under what conditions the XLMAC errors occur.

Impact:
The BIG-IP system fails over.

Workaround:
Modify the default high availability (HA) action for the switchboard-failsafe to reboot instead of go offline and down links.

930633-3 : Delay in using new route updates by existing connections on BIG-IP.

Component: TMOS

Symptoms:
If routes are updated in BIG-IP by static or dynamic methods, the existing connections will not use the new routes until ~1-8 seconds later.

Conditions:
Routes for existing connections on the BIG-IP are updated.

Impact:
Performance might be degraded when routes are updated for existing connections on BIG-IP.

930217-3 : Zone colors in ASM swap usage graph are incorrect

Component: Application Visibility and Reporting

Symptoms:
In GUI ASM memory utilization chart, 'BD swap size, Total swap size' graph show inconsistent background colors. It looks like these colors are assigned with an assumption that swap usage is shown as percentage but it is shown as absolute value.

Conditions:
-- ASM is provisioned.
-- Viewing ASM memory utilization chart/

Impact:
Potential confusion viewing colors in ASM memory utilization chart.

Workaround:
None. This is a cosmetic issue only.

929909-2 : TCP Packets are not dropped in IP Intelligence

Component: Advanced Firewall Manager

Symptoms:
When an IP address is added to IP Intelligence under Denial-Of_service Category at a global level, and a TCP flood with that IP address occurs, IP Intelligence does not drop those packets

Conditions:
TCP traffic on BIG-IP with IP Intelligence enabled and provisioned

Impact:
When adding an IP address to an IP Intelligence category, UDP traffic from that IP address is dropped, but TCP traffic is not dropped.

929813-2 : "Error loading object from cursor" while updating a client SSL profile

Component: TMOS

Symptoms:
When updating a client-ssl profile in the GUI, the update fails and the GUI displays the following error:
"Error loading object from cursor"

Conditions:
- Client SSL profiles with inheritance: Parent -> Child -> Grand Child.

- Parent SSL profile uses cert-key-chain

Impact:
Unable to edit the profile using the GUI.

Workaround:
Use tmsh or iControl to update the Client SSL profile

929429-2 : Oracle/SQL database monitor uses excessive CPU when Platform FIPS is licensed

Component: Local Traffic Manager

Symptoms:
Whenever you create Oracle or SQL (mssql, mysql or postgresql) database monitors, and add a member to the monitor, every time the OpenSSL libraries are loaded for a new connection, high CPU usage occurs.

Conditions:
-- Create an Oracle or SQL database LTM monitor.
-- Add a pool member to the Oracle or SQL database monitor created.
-- Platform FIPS is licensed.

Impact:
High CPU Usage due to the loading of libraries whenever new connection is created.

Workaround:
None.

929213-1 : iAppLX packages not rolled forward after BIG-IP upgrade★

Component: Device Management

Symptoms:
Certain iAppLX packages are not rolled forward after a BIG-IP upgrade or restoring a UCS file generated from an affected system, and will be unavailable for use.

1. f5-cloud-failover-1.4.0-0.noarch.rpm
2. f5-service-discovery-1.2.9-2.noarch.rpm
3. f5-telemetry-1.12.0-3.noarch.rpm

Conditions:
-> Installing any of the below iAppLX packages
1. f5-cloud-failover-1.4.0-0.noarch.rpm
2. f5-service-discovery-1.2.9-2.noarch.rpm
3. f5-telemetry-1.12.0-3.noarch.rpm

-> Performing an upgrade

-> Trying to access the LX packages from GUI by navigating to iApps -> Package Management LX

Impact:
After upgrading or restoring a UCS file generated from an affected system, the cloud-failover, service discovery, and telemetry iAppLX apps are not available for use, and will result in 404 error, while accessing them from GUI

Workaround:
The package needs to be uninstalled and installed again for use.

Steps:
-> From GUI, Navigate to iApps -> Package Management LX
-> select the package to uninstall and click on Uninstall
-> click on Import and provide the path of package to install again

929173-2 : Watchdog reset due to CPU stall detected by rcu_sched

Component: TMOS

Symptoms:
Rcu_sched detected CPU stall, which can cause vCMP host reboot. The device reboots without core and records "Host Watchdog timeout."

Conditions:
Host undergoing a watchdog reset in a vCMP environment.

Impact:
CPU RCU stalls and host watchdog reboots

929133-2 : TMM continually restarts with errors 'invalid index from net device' and 'device_init failed'

Component: TMOS

Symptoms:
VLANs with a name that that start with "eth" will cause tmm to fail and restart.

Conditions:
Vlan name that starts with "eth"

Impact:
Since tmm fails to start, the BIG-IP cannot serve traffic.

Workaround:
Rename all vlans that start with "eth"

929005-2 : TS cookie is set in all responses

Component: Application Security Manager

Symptoms:
ASM sends a new cookie in every response, even though there is no change to the cookie name-plus-value.

Conditions:
-- ASM enabled.
-- Hostname is configured in the ASM policy.
-- The pool member sends different cookie values each time.

Impact:
ASM sends a Set-Cookie in every response, and it always sets the same cookie value.

Workaround:
None.

928665-2 : Kernel nf_conntrack table might get full with large configurations.

Component: TMOS

Symptoms:
Linux host connections are unreliable, and you see warning messages in /var/log/kern.log:

warning kernel: : [182365.380925] nf_conntrack: table full, dropping packet.

Conditions:
This can occur during normal operation for configurations with a large number of monitors, for example, 15,000 or more active entries.

Impact:
Monitors are unstable/not working at all.

Workaround:
1. Modify /etc/modprobe.d/f5-platform-el7-conntrack-default.conf
increasing the hashsize value:

options nf_conntrack hashsize=262144

2. Save the file.
3. Reboot the system.

928445-4 : HTTPS monitor is down when server_ssl profile cipher string is configured to TLSv1_2

Component: Local Traffic Manager

Symptoms:
HTTPS monitor state is down when server_ssl profile cipher string has the value 'TLSv1_2'.
-- configured cipherstring TLSv1_2/TLSv1_1 is rejected by OpenSSL.

Conditions:
-- Pool member is attached with HTTPS monitor.
-- Monitor is configured with an SSL profile.
-- The configured server_ssl profile has cipher string as DEFAULT:!TLSv1_2.

Impact:
Pool status is down.

Workaround:
-- Enable 'in-tmm' monitoring.
-- Use SSL options available in the server SSL profile to disable TLSv1_2 or TLSv1_1 instead of cipher string.
-- Use the same cipher string with cipher group / cipher rule that is attached to the SSL profile.

928389-2 : GUI becomes inaccessible after importing certificate under import type 'certificate'

Component: TMOS

Symptoms:
After importing a new certificate, httpd goes down and the GUI becomes inaccessible.

Conditions:
Upload new certificate using Import-type 'Certificate' option.

Impact:
The GUI is inaccessible as soon as you import a new device certificate using import-type 'Certificate'.

Workaround:
Manually copy the matching key to /config/httpd/conf/ssl.key/server.key and restart apache (bigstart restart httpd)

If you do not have the matching key, generate a new key/cert pair from the command line by following K9114

928353-2 : Error logged installing Engineering Hotfix: Argument isn't numeric★

Component: TMOS

Symptoms:
When installing an Engineering Hotfix, the following error may be logged in /var/log/liveinstall.log:

Argument "" isn't numeric in numeric eq (==) at /var/tmp/install/pkgcpio/usr/local/lib/tm_install/Hotfix.pm line 651.

Conditions:
This error may occur when installing an Engineering Hotfix, if the Engineering Hotfix does not include an update to the nash-initrd component.

Impact:
The error message gives a mistaken impression that the Engineering Hotfix did not install successfully. However, it does install correctly, and the system operates without issue. You can safely ignore this message.

Workaround:
None.

928177-2 : Syn-cookies might get enabled when performing multiple software upgrades.

Component: Advanced Firewall Manager

Symptoms:
Syn-cookie protection of FastL4/TCP profile might get enabled when performing multiple software upgrades.

Conditions:
-- Performing an upgrade from version earlier than 14.0.0 to a version higher than or equal to 14.0.0.
-- Then performing another upgrade.

Impact:
Value of profile attribute syn-cookie-enable might be changed during an upgrade.

Workaround:
Save configuration before starting each upgrade.

928161-1 : Local password policy not enforced when auth source is set to a remote type.

Component: TMOS

Symptoms:
The local password policy is not enforced when the auth source type is set to the value of 'Remote'. Any non-default password policy changes are not enforced for local users.

Conditions:
1) Some parts of the local password policy has been changed from the default values, for example, changing the password required-uppercase to 2.

2) The auth source is set to a remote source, such as LDAP, AD, or TACACS.

Impact:
The system does not enforce any of the non-default local password policy options.

For example, even if the required-uppercase is set to 2, a local user's password can be set to something less than 2.

Even if the minimum-length is set to 12, a local user's password can be set to something less than 12.

Another example, even if the max-duration is set to 90 days, the password does not expire for 99999 days (the default).

Workaround:
None

927713-1 : Secondary blade IPsec SAs lost after standby reboot using clsh reboot

Component: Local Traffic Manager

Symptoms:
-- When 'clsh reboot' is executed on the primary blade, it internally calls ssh reboot on all secondary blades and then reboots the primary blade. The 'clsh reboot' script hangs, and there is a delay in rebooting the primary blade.
-- Running 'ssh reboot' on secondary blades hangs due to sshd sessions getting killed after network interface down.

Conditions:
-- Running 'clsh reboot' on the primary blade.
-- Running 'ssh reboot' on secondary blades.

Impact:
A secondary blade is not rebooted until clsh or ssh closes the connection to that blade.

Workaround:
Perform a reboot from the GUI.

927633-2 : Failure path in external datagroup internal mapping operation failure may result in 'entry != NULL' panic

Component: Local Traffic Manager

Symptoms:
Log messages written to /var/log/ltm:
-- notice tmm2[30394]: 01010259:5: External Datagroup (/Common/dg1) queued for update.
-- notice panic: ../kern/sys.c:1081: Assertion "entry != NULL" failed.

Conditions:
-- Create datagroups.
-- Some condition causes a datagroup to not be present (e.g., delete, rename operations, or another, internal operation).
-- Load the config.

Impact:
Internal mapping of external datagroup fails. Datagroup creation fails.

Workaround:
None.

927589-3 : ILX::call command response get truncated

Component: Local Traffic Manager

Symptoms:
If a response to an ILX::call command is larger than 64 KB, data is truncated.

Conditions:
-- iRule script including an ILX::call command in use.
-- Return response is greater than 64 KB.

Impact:
iRule fails and the connection aborts.

Workaround:
None.

927569-2 : HTTP/3 rejects subsequent partial SETTINGS frames

Component: Local Traffic Manager

Symptoms:
HTTP/3 aborts the connection upon receipt of a 'second' SETTINGS frame.

Conditions:
HTTP/3 first receives an incomplete SETTINGS frame, followed by more SETTINGS frame bytes.

Impact:
Connection fails to complete.

Workaround:
None.

927441-3 : Guest user not able to see virtual server details when ASM policy attached

Component: TMOS

Symptoms:
When ASM is attached to a Virtual Server, a BIG-IP user account configured with the Guest role cannot see virtual server details. An error message is printed instead:
01070823:3: Read Access Denied: user (guestuser) type (GTM virtual score).

Conditions:
-- ASM Policy attached to virtual server.
-- Logging onto the BIG-IP system using an account configured with the guest user role.
-- Running the command:
tmsh show ltm virtual detail

Impact:
Cannot view virtual server details.

Workaround:
None.

927025-3 : Sod restarts continuously

Component: TMOS

Symptoms:
After upgrading to v14.1.2.6, sod keeps restarting and dumping core.

Conditions:
This occurs when /dev/shm/chmand is missing and the system restarts chmand and sod upon reload.

Note: It is unknown how this condition might occur.

Impact:
Unstable sod process can affect failover functionality in BIG-IP systems.

Note: This happens only the first time after upgrade. To recover, you must power down the system for a full reboot.

Workaround:
Run the following command:

restorecon /dev/shm/chmand

926985-2 : HTTP/3 aborts stream on incomplete frame headers

Component: Local Traffic Manager

Symptoms:
HTTP/3 streams abort at seemingly arbitrary times when BIG-IP is receiving large amounts of data.

Conditions:
HTTP/3 receives an incomplete frame header on a given stream.

Impact:
Data transfer is incomplete.

Workaround:
None

926973-1 : APM / OAuth issue with larger JWT validation

Component: Access Policy Manager

Symptoms:
When the access profile type is OAuth-RS or ALL, and sends a request with a Bearer token longer than 4080 bytes in the Authorization header to the virtual server, OAuth fails with ERR_NOT_SUPPORTED.

Conditions:
Bearer token longer than 4080 bytes

Impact:
APM oauth fails with ERR_NOT_SUPPORTED.

Workaround:
None.

926845-5 : Inactive ASM policies are deleted upon upgrade

Component: Application Security Manager

Symptoms:
Upon upgrade, active ASM policies are preserved, and inactive policies are deleted.

Conditions:
-- Configuration contains active and inactive ASM policies.
-- Upgrade the BIG-IP system to any later version.
-- You can check existing ASM policies in tmsh:
tmsh list asm policy

Impact:
Only the active ASM policies are preserved; the inactive policies are deleted.

Workaround:
None.

926757-2 : ICMP traffic to a disabled virtual-address might be handled by a virtual-server.

Component: Local Traffic Manager

Symptoms:
ICMP traffic to a disabled virtual-address might be handled by a virtual-server.

Conditions:
Virtual-server with an address space overlapping with a self-IP, capable of handling ICMP traffic, for example:
ip-forward wildcard 0.0.0.0/0 virtual-server

Impact:
ICMP traffic to a virtual-address might be handled by a virtual-server.

Workaround:
There is no workaround.

926549-1 : AFM rule loops when 'Send to Virtual' is used with Virtual Server iRule 'LB::reselect'

Component: Advanced Firewall Manager

Symptoms:
With some configurations, executing a command such as 'tmsh show security firewall global-rules active' loops continuously, causing stat counters to rise, and possibly log messages to be written to /var/log/ltm.

Conditions:
-- AFM is routing traffic to a Virtual Server through the 'Send to Virtual' option.
-- The target Virtual Server uses the 'LB_FAILED' iRule to select a new Virtual Server through virtual command and 'LB::reselect'.

Impact:
The iRule loops continuously, causing stat counters to rise, and possibly logging messages in /var/log/ltm.

Workaround:
This configuration should be avoided, but if it is used, and if this does happen, you can restart tmm:
bigstart restart tmm

This stops the current looping, until it is triggered again.

Impact of workaround: Traffic disrupted while tmm restarts.

926513-2 : HTTP/2 clone pool fails to receive traffic with the clone pool (server) option selected.

Component: Local Traffic Manager

Symptoms:
HTTP/2 Clone pools are not working when the Clone Pool (Server) option is selected. This issue occurs when a HTTP/2 profile (Server) or HTTP/2 full-proxy configuration is enabled and an HTTP/2 clone pool is set on a virtual server. This issue prevents traffic from being copied to the appropriate clone pool member.

Conditions:
A virtual server provisioned with the following configuration:

--HTTP/2 default pool.
--HTTP/2 clone pool (server).
--HTTP/2 profile (server) or HTTP/2 profile full-proxy configuration.

Impact:
Clone pools (server) do not mirror HTTP/2 traffic.

Workaround:
None.

926425-3 : Hardware SYN Cookies may not deactivate after the SYN attack ends and valid TCP traffic starts

Component: Advanced Firewall Manager

Symptoms:
Hardware SYN Cookies activated on a virtual server under a SYN attack may not deactivate after the SYN attack ends and valid TCP traffic starts. The non-supported TCP options under SYN Cookie protection continue to be unsupported until hardware SYN cookies are disabled.

Conditions:
SYN Cookie activated on Neuron-capable platforms:
  + VIPRION B4450N blade
  + BIG-IP iSeries devices (ix800) except the i850, ix2800, and ix4800:
     -- BIG-IP i5800 Series
     -- BIG-IP i7800 Series
     -- BIG-IP i11800 Series
     -- BIG-IP i15800 Series

Impact:
This can successfully cause hardware SYN cookies to be activated on the BIG-IP virtual server under attack. However, once the attack subsides and falls below the SYN check threshold, SYN cookies may not immediately deactivate.

Because SYN cookie protection is still active, and because under SYN cookie protection some TCP options are not supported, the options are not taken into account when processing traffic. For example, under SYN cookie protection, MSS is fixed to a few sizes. For traffic that arrives with a different MSS size, the system uses a supported size instead.

Workaround:
You can use any of the following to clear the HSB issue:
-- Restart neurond.
-- Restart TMM,
-- Reboot the device.

926085-1 : GUI: Node/port monitor test not possible in the GUI, but works in tmsh

Component: Local Traffic Manager

Symptoms:
The node address field is disabled when trying to create a custom HTTP/HTTPS monitor, so you cannot enter a node address. This prevents you from using the Test operation to test this type of monitor in the GUI.

Conditions:
-- In a new monitor derived from HTTP/HTTPS, click the Test tab.
-- View the Address field, and then try to run the test.

Impact:
The Address field is disabled, with *.* in the field. You cannot enter a node address. The test fails with a message:

invalid monitor destination of *.*:80.
invalid monitor destination of *.*:443. (:port used to test)

Workaround:
Run either of the following tmsh commands:

for HTTP
-- tmsh run ltm monitor http my_http destination <IP address>:<port>

-- tmsh modify ltm monitor http my_http destination *:*

for HTTPS
-- tmsh run ltm monitor https my_https destination <IP address>:<port>

-- tmsh modify ltm monitor https my_https destination *:*

925797-2 : Full config sync fails and mcpd memory usage is very high on the receiving device with thousands of FQDN pools members

Component: TMOS

Symptoms:
There there are thousands of FQDN nodes and thousands of pools that have FQDN pool members, mcpd can run out of memory during a full config sync.

The mcpd process might fail and restart or it might remain running but have its virtual memory so fragmented that queries to mcpd might fail to allocate memory.

One of signs that this has occurred is a non-zero free_fail count in the tmstat table vmem_kstat.

Conditions:
-- Thousands of FQDN nodes
-- Thousands of pools with FQDN pool members
-- Full config sync.

Impact:
-- The mcpd process might restart.
-- The config save operation fails:
tmsh save /sys config fails
-- Other queries to mcpd fail.

Workaround:
None.

924697-2 : VDI data plane performance degraded during frequent session statistic updates

Component: Access Policy Manager

Symptoms:
Data plane performance for VDI use cases (Citrix/VMware proxy) is degraded during frequent access session statistic updates.

Conditions:
APM is used as VDI proxy for Citrix or VMware.

Impact:
APM's VDI proxy does not perform to its full capacity.

Workaround:
None.

924589-1 : PEM ephemeral listeners with source-address-translation may not count subscriber data

Component: Policy Enforcement Manager

Symptoms:
When a PEM profile is associated with a protocol that can create dynamic server-side listeners (such as FTP), and source-address-translation is also enabled on the virtual server, traffic on that flow (for example ftp-data) is not associated with the subscriber, and is therefore not counted or categorized.

Conditions:
-- Listener configured with PEM and FTP profiles
-- Some form of source address translation is enabled on the listener (for example, SNAT, Automap, SNAT Pool)

Impact:
Inaccurate subscriber traffic reporting and classification.

Workaround:
None.

924297-2 : Ltm policy MCP objects are not being synced over to the peer device

Component: TMOS

Symptoms:
An LTM policy does not sync to the peer device, but the devices report "In Sync".

Conditions:
-- Sync/failover device group with full load on sync disabled
-- A draft policy is attached to a parent policy's rule actions and published.
-- A config sync occurs (manually or automatically)

Impact:
The LTM policy does not sync to the peer device.

Workaround:
Perform a full config sync:

tmsh run cm config-sync force-full-load-push to-group <device group name>

923745-3 : Ctrl-Alt-Del reboots the system

Component: TMOS

Symptoms:
A device reboot occurs when pressing Ctrl-Alt-Del.

Conditions:
This occurs when pressing Ctrl-Alt-Del or sending the command to a BIG-IP Virtual Edition (VE) virtual console.

Impact:
Accidental reboots are possible. You should not reboot VE using Ctrl-Alt-Del.

Workaround:
Run the following command:

systemctl mask ctrl-alt-del.target

923233-1 : Incorrect encoding in 'Logout Page' for non-UTF8 security policy

Component: Application Security Manager

Symptoms:
Fields in 'Logout Page' for a non-UTF8 security policy has incorrect encoding for values, including non-English characters in the GUI and iControl REST.

Conditions:
This can be encountered while creating a non-UTF8 security policy via iControl REST, where the 'expected' and 'unexpected' fields contain non-UTF8 content.

Impact:
Logout Page field values are displayed with the wrong encoding.

Workaround:
None.

923221-4 : BD does not use all the CPU cores

Component: Application Security Manager

Symptoms:
Not all the CPUs are utilized. The CPUs that are not loaded are those with ID greater than 31.

Conditions:
BIG-IP is installed on a device with more than 32 cores.

Impact:
ASM does not use all of the available CPU cores.

Workaround:
1. Modify the following file on the BIG-IP system:
   /usr/local/share/perl5/F5/ProcessHandler.pm

Change this:
  ALL_CPUS_AFFINITY => '0xFFFFFFFF'

To this:
  ALL_CPUS_AFFINITY => '0xFFFFFFFFFFFF',

2. Restart the asm process:
   bigstart restart asm.

922885-3 : BIG-IP Virtual Edition does not pass traffic on ESXi 6.5

Solution Article: K27872027

Component: TMOS

Symptoms:
BIG-IP Virtual Edition (VE) does not pass traffic when deployed on ESXi 6.5 hypervisors, when the VE is using VMXNET 3 network interfaces (VMXNET 3 interfaces are the default).

'tmsh show net interface' indicates that one or more interfaces are not initialized.

Conditions:
-- BIG-IP VE running on VMware ESXi 6.5 hypervisor.

Impact:
Traffic does not pass through non-mgmt interfaces.

Workaround:
-- On the BIG-IP systems, you can switch to the 'sock' driver.

Note: The workarounds that switch driver must be applied individually to devices, as they do not synchronize via ConfigSync.

IMPORTANT: The driver must be configured the same way on all devices in a sync-failover device group.

1, At the command prompt, run the following command to enable the sock driver in tmm_init.tcl:

echo "device driver vendor_dev 15ad:07b0 sock" >> tmm_init.tcl

2. Restart tmm:

tmsh restart sys service tmm

-- After restarting, the sock driver should be listed in the 'driver_in_use' column when running the following command.

tmctl -d blade tmm/device_probed
pci_bdf pseudo_name type available_drivers driver_in_use
------------ ----------- --------- --------------------- -------------
0000:03:00.0 F5DEV_PCI xnet, vmxnet3, sock,
0000:0b:00.0 1.1 F5DEV_PCI xnet, vmxnet3, sock, sock
0000:13:00.0 1.2 F5DEV_PCI xnet, vmxnet3, sock, sock
0000:1b:00.0 1.3 F5DEV_PCI xnet, vmxnet3, sock, sock

922665-2 : The admd process is terminated by watchdog on some heavy load configuration process

Component: Anomaly Detection Services

Symptoms:
The watchdog process in the BIG-IP ASM monitors terminates the admd process.

Conditions:
On some heavy load configuration process, such as version upgrade.

Impact:
Restart of admd daemon. The restarts may be continuous. No stress-based anomaly detection or behavioral statistics aggregation until admd restarts.

Workaround:
For the case of continuous restarts, a partial solution is to disable admd during busy periods such as upgrades. To do so, issue the following two commands, in sequence, after the upgrade is complete:

bigstart stop admd
bigstart start admd

922641-4 : Any iRules that park in a clientside or serverside command leave the iRule attached to the wrong flow

Component: Local Traffic Manager

Symptoms:
iRule commands issued after a clientside or serverside command operate on the wrong peer flow.

Conditions:
An iRule contains a script that parks in a clientside or serverside command.

Examples of parking commands include 'table' and 'persist'.

Impact:
The iRule commands operate on the wrong peer flow.

Workaround:
Avoid using commands that park inside the clientside or serverside command.

922613-2 : Tunnels using autolasthop might drop traffic with ICMP route unreachable

Component: TMOS

Symptoms:
Traffic that should be encapsulated and sent via tunnel might get dropped with an ICMP error, destination unreachable, unreachable route. This happens in a scenario where no route exists towards the remote tunnel endpoint and the BIG-IP system relies on autolasthop to send the encapsulated traffic back to the other end of the tunnel.

Conditions:
No route exists to the other end of the tunnel.

Impact:
Traffic dropped with ICMP error, destination unreachable, unreachable route.

Workaround:
Create a route towards the other remote end of the tunnel.

922413-2 : Excessive memory consumption with ntlmconnpool configured

Component: Local Traffic Manager

Symptoms:
OneConnect allows load balancing of HTTP requests from the same client connection over a pool of server side connections. When NTLM authentication is used, the NTLM Conn Pool allows reuse of server-side connections for authenticated client side connections. It holds HTTP authentication headers which is no longer necessary once a client is authenticated.

Conditions:
-- The virtual server is configured with both OneConnect and NTLM Conn Pool profiles.
-- A large number of client systems with NTLM authentication are load balanced via the virtual server with long-lived connections.

Impact:
The BIG-IP system experiences memory pressure, which may result in an out-of-memory condition and a process crash, and potentially cause failover and interruption of traffic processing.

Workaround:
None.

922185-1 : LDAP referrals not supported for 'cert-ldap system-auth'★

Component: TMOS

Symptoms:
Admin users are unable to log in.

Conditions:
-- Remote LDAP auth enabled.
-- Administrative users are authenticated with the 'cert-ldap' source.
-- The admin user tries to log in.

Impact:
The cert-ldap authentication does not work, so login fails.

Workaround:
Manually edit the /etc/nslcd.conf and set the referrals to no.

922153-2 : Tcpdump is failing on tmm 0.x interfaces

Component: TMOS

Symptoms:
The tcpdump command exits immediately with an error:
errbuf ERROR:TMM side closing: Aborted
tcpdump: pcap_loop: TMM side closing: Aborted

Conditions:
Capturing the packets on tmm interfaces.

Impact:
Unable to capture the packets on specific tmm interfaces.

Workaround:
There are two possible workarounds:

-- Start tcpdump on the tmm that actually owns the interface using the TCPDUMP_ADDR command; for example, using blade1 for 1/0.16, run the command:

TCPDUMP_ADDR=127.1.1.16 tcpdump -w testcap.pcap -s 0 -i 1/0.16

-- Send the TCPDUMP_ADDR command to a specific tmm, which could work from any blade (127.20.<slot>.<tmmnumber+1> (e.g. 127.20.1.1 == slot1/tmm0, 127.20.2.16 == slot2/tmm15):

TCPDUMP_ADDR=127.20.1.16 tcpdump -w testcap.pcap -s 0 -i 1/0.16

922105-3 : Avrd core when connection to BIG-IQ data collection device is not available

Component: Application Visibility and Reporting

Symptoms:
When a BIG-IP system is configured to work with BIG-IQ but cannot connect due to network problems, avrd restarts itself every 10 minutes. During such restarts, a core is sometimes generated.

Conditions:
BIG-IP system is registered on BIG-IQ, but there is no network connectivity for any number of reasons.

Impact:
No impact since there is no network connectivity with BIG-IQ, and the data from the BIG-IP system cannot be sent anywhere.

Workaround:
Attempts to connect to BIG-IQ can be disabled manually by the following command:

tmsh modify analytics global-settings use-offbox disabled

922069 : Increase iApp block configuration processor timeout

Component: TMOS

Symptoms:
Attempting to configure and deploy an SSL Orchestrator configuration may result in a configuration processor timeout error.

Conditions:
When the TMOS control plane is taking a relatively high amount of CPU processing due to intense REST framework management workflows, any attempt to configure and deploy an SSL Orchestrator configuration using the guided configuration user interface, might take longer than the default 30 seconds timeout.

Impact:
The operation fails, resulting in a configuration processor timeout error. The BIG-IP administrator cannot configure and deploy an SSL Orchestrator configuration.

Workaround:
1. Edit the /var/config/rest/iapps/f5-iappslx-ssl-orchestrator/nodejs/gc/orchestratorConfigProcessor.js file:

vi /var/config/rest/iapps/f5-iappslx-ssl-orchestrator/nodejs/gc/orchestratorConfigProcessor.js

2. Locate the var _createComponentBlock = function(...) and locate the following line inside the function body (line ~1290):

requestBody.state = "BINDING";

3. Add the following after the 'requestBody.state' line:
requestBody.configProcessorTimeoutSeconds = 120;

4. Save the edited file.

5. Restart the restnoded daemon:
bigstart restart restnoded

922005-3 : Stats on a certain counter for web-acceleration profile may show excessive value

Component: Local Traffic Manager

Symptoms:
When the BIG-IP system is configured to use the RAM Cache feature, a corresponding profile may report an excessively large value for the cache_misses_all counter under certain conditions.

Conditions:
-- The BIG-IP system has a virtual server with web-acceleration profile without an application (RAM Cache feature).
-- The virtual receives uncacheable requests which are interrupted by a client or are not served by a server.

Impact:
A value for cache_misses_all incurs an arithmetic overflow, and shows an excessive number comparable with 1.8e19. The issue has no functional impact; the system operates as normal.

Workaround:
None.

921993-3 : LTM policy with a 'contains' operator does not work as expected when using an external data group.

Component: Local Traffic Manager

Symptoms:
If a combination of other operators and the 'contains' operator are used in LTM Policy, searches might fail if the hashing-based operators have not populated the target entries.

Conditions:
-- LTM policy with 'contains' operator.
-- Use of external datagroups.

Impact:
LTM policy might not work as expected with external data groups.

Workaround:
Use either of the following workarounds:

-- If applicable, change the 'contains' operator to 'starts_with' in the policy.

-- Change the policy into an iRule (executing '[class get <datagroup]' )

921697-3 : Attack signature updates fail to install with Installation Error.★

Component: Application Security Manager

Symptoms:
Installing a new Attack Signature Update (ASU) file on ASM/AWAF device that has large number of active policies can result in a failure due to memory exceptions. The following errors can be observed:

/var/log/ts/asm_config_server.log:
F5::ASMConfig::Handler::handle_error,,Code: 406 , Error message = Process size (232341504) has exceeded max size (200000000)

/var/log/asm
crit perl[19751]: 01310027:2: ASM subsystem error (apply_asm_attack_signatures ,F5::LiveUpdate::PayloadHandler::clean_fail): Fail load update files: TSocket: timed out reading 1024 bytes from n.n.n.n:9781

Conditions:
1. Adding and activating a large number of policies on a BIG-IP system configured with ASM/AWAF. It is not known exactly how many policies are required to encounter this, but it appears to be between 50 and 90 where this becomes a risk.

2. Installing a new ASU file

Impact:
The attack signature update fails.

Workaround:
Impact of workaround:
Performing this workaround requires restarting ASM, so it affects traffic processing briefly; therefore, it is recommended that you perform this during a maintenance window.

Increase 'max memory size' from the default ~200 MB (200000000) to 300 MB:

1. Take a backup of the original file.
# cp /etc/ts/tools/asm_config_server.cfg /var/tmp/asm_config_server.original.cfg

2. Add the following to the end of file /etc/ts/tools/asm_config_server.cfg:
# AsyncMaxMemorySize=314572800

3. Restart ASM.
# bigstart restart asm

921541-3 : When certain sized payloads are gzipped, the resulting payload is chunked, incorrect, and is never delivered to the client due to missing end of chunk marker.

Component: Local Traffic Manager

Symptoms:
The HTTP session initiated by curl hangs.

Conditions:
-- The problem occurs when the file to be compressed meets the following criteria:
-- The following platforms with Intel QAT are affected:
   + B4450N (A114)
   + i4000 (C115)
   + i10000 (C116/C127)
   + i7000 (C118)
   + i5000 (C119)
   + i11000 (C123)
   + i11000 (C124)
   + i15000 (D116)
-- File size to be compressed is less than compression.qat.dispatchsize.
-- File size to be compressed is one of specific numbers from this list: 65535, 32768, 16384, 8192, 4096.

Impact:
Connection hangs, times out, and resets.

Workaround:
Use software compression.

921477-2 : Health monitors may fail when the HTTP RFC Compliance option is enabled in a dual BIG-IP setup.

Component: Local Traffic Manager

Symptoms:
With the HTTP RFC enforcement profile option enabled, incoming health monitor requests without an HTTP version in the request line (HTTP/0.9) may fail to produce the correct result for dual BIG-IP configurations. This can result in incoming health monitor traffic being incorrectly blocked when traveling through a virtual server. These health monitors will be unable to provide the correct availability of the intended resource. The default HTTP and HTTPS monitors as well as any custom monitors with a missing HTTP version in their requests could see this issue.

Conditions:
A dual BIG-IP configuration may provisioned with the following considerations.

-- One or more BIG-IP systems are in the network path for monitor traffic.

-- The first BIG-IP system uses a health monitor that initiates a health check request (without an HTTP version) in the request line (HTTP/0.9) against a second BIG-IP system.

-- The second (downstream) BIG-IP system has a virtual server that is the endpoint for the monitor. The virtual server is configured with an HTTP profile with the HTTP RFC Compliance profile option selected.

Impact:
Rather than receiving the correct health check result, the original BIG-IP system can fail to report whether the second BIG-IP is available.

Workaround:
You can use http_head_f5 monitor to perform health checks.

921441-2 : MR_INGRESS iRules that change diameter messages corrupt diam_msg

Component: Service Provider

Symptoms:
-- 'DIAMETER::host origin' command may not be set correctly.

There are errors in ltm/log:
err tmm[18562]: 014c0001:3: DIAMETER: hud_diam_handle error: Not found

Conditions:
-- Virtual server is configured with a diameter profile enabled with an ingress iRule, for example:

ltm rule Diameter - iRule {
  when MR_INGRESS {
    DIAMETER:: host origin "hostname.realm.example"
  }
}

-- Traffic arrives containing CER and ULR messages.

Impact:
Using the iRule to change the host origin corrupts the diameter message.

Workaround:
None.

921149-1 : After applying static bandwidth controller on a virtual server, any changes to the virtual server disassociates the BWC policy

Component: TMOS

Symptoms:
All Bandwidth Controller (BWC) stats are 0 (zero) even though traffic is passing.

Conditions:
-- A BWC policy is attached to a virtual server.
-- The virtual server with the attached BWC policy is modified.

Impact:
The system disassociates the BWC policy from the virtual server. Traffic is no longer throttled according to the policy rules.

Workaround:
To reattach the policy, detach the Bandwidth Controller policy from the virtual server, and then reapply it.

921121-4 : Tmm crash with iRule and a PEM Policy with BWC Enabled

Component: TMOS

Symptoms:
Tmm crashes while passing traffic through PEM.

Conditions:
-- PEM policy with bandwidth controller.
-- iRule makes a traffic decision based on certain unique PEM sessions.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

921001-4 : After provisioning change, pfmand might keep interfaces down on particular platforms

Component: TMOS

Symptoms:
After a provisioning change, pfmand might keep interfaces down.

Conditions:
-- Provisioning change on the following platforms:
   + i850
   + i2600 / i2800
   + i4600 / i4800
   + 2000- and 4000-series

-- Link Down Time on Failover configured to a non-zero value (the default is '10').

Impact:
Interfaces remain DOWN.

Workaround:
Follow this procedure:

1. Set db failover.standby.linkdowntime to '0'.

2. To bring interfaces UP again, restart pfmand:
bigstart restart pfmand

920893-1 : GUI banner for configuration issues frozen after repeated forced VIPRION blade failover

Component: TMOS

Symptoms:
Repeatedly forcing VIPRION blade failover can cause the GUI to get stuck displaying:

This device is not operational because the loaded configuration contained errors or unlicensed objects. Please adjust the configuration and/or the license, and re-license the device.

Examination of the configuration and license shows that there are no configuration errors or unlicensed configuration objects. Failover occurs as expected, and the device is operational.

Conditions:
Repeatedly forcing blade failover triggers this issue, with commands such as the following issued in rapid succession:

- tmsh modify sys cluster default members { 2 { disabled } }
- tmsh modify sys cluster default members { 2 { enabled } }
- tmsh modify sys cluster default members { 1 { disabled } }
- tmsh modify sys cluster default members { 1 { enabled } }

Impact:
The GUI continuously displays the banner the device-not-operational banner. However, the device is operational.

Workaround:
You can use either of the following workarounds to return the GUI to normal operation:
-- Restart mcpd by running the following command:
bigstart restart mcpd

-- Reboot the VIPRION system.

920817-6 : DNS Resource Records can be lost in certain circumstances

Component: Global Traffic Manager (DNS)

Symptoms:
DNS Zone syncing is missing Resource Records.

Conditions:
This occurs when a large number of configuration changes, including Wide IP changes, are made simultaneously on multiple GTM/DNS devices in a sync group.

Impact:
DNS Resource Records can be missing from the BIND DNS database.

The impact of this is that if GSLB Load Balancing falls back to BIND, the DNS Resource Records may not be present.

Workaround:
Restrict configuration (Wide IP) changes to one GTM/DNS device in a device group.

Note: It is also possible to turn off Zone Syncing. GTM/DNS configuration is still synced, but the you lose the ability to sync non-Wide IP changes to the BIND DB. If you do not utilize ZoneRunner to add additional non-Wide IP records, this is a problem only when GSLB resorts to Fallback to BIND. This can be mitigated with DNSX and DNS (off device) for non Wide IP Resource Records.

920789-2 : UDP commands in iRules executed during FLOW_INIT event fail

Component: Local Traffic Manager

Symptoms:
UDP commands in iRules executed during FLOW_INIT event fail.

Conditions:
An iRule that contains UDP commands is executed on the FLOW_INIT event.

Impact:
UDP commands in iRules executed during FLOW_INIT event fail.

Workaround:
None.

920761-2 : Changing a virtual server type in the GUI may change some options; changing back to the original type does not restore original values

Component: TMOS

Symptoms:
In the GUI if you change a virtual server from one type to another, there may be changes automatically applied to some of the settings. If you change the type back to its original value, those changes remain, and are saved when you click Update.

Conditions:
-- Modifying a virtual server from one type to another, and then changing it back to the original type.
-- Clicking Update.

Impact:
Unexpected configuration changes, which can lead to unexpected behavior of the BIG-IP system.

Workaround:
To prevent unwanted changes, when you change a virtual server's type and then change it back within the same session, click Cancel instead of Update.

920541-3 : Incorrect values in 'Class Attribute' in Radius-Acct STOP request

Component: Access Policy Manager

Symptoms:
'Class Attribute' value in the Radius-Acct STOP request from the BIG-IP APM system does not match the 'Class Attribute' value in the Radius-Acct START request from the RADIUS server.

Conditions:
-- Access policy is configured with RADIUS Acct VPE item to send accounting messages to RADIUS server when users log on and off.

Impact:
RADIUS server does not log accounting information properly.

Workaround:
This workaround textually describes reconfiguring an access policy in the Visual Policy Editor (VPE). Descriptions may not be as straightforward as in regular GUI workarounds.

This is a description of the visual layout of the policy:

Start --+-- Logon Page --+-- RADIUS Auth --+-- RADIUS Acct --+-- Variable Assign (1) --+-- Advanced Resource Assign --+-- Variable Assign --+-- Allow

1. Decode the class attribute and save it in a temporary variable:

   -- Click Variable Assign (1); in the two sub-areas, enter the following:

      temp.radius.last.attr.class.decoded
      expr { [mcget -decode {session.radius.last.attr.class}] }

2. Copy the temporary variable into the class session var:

   -- Click Variable Assign; in the two sub-areas, enter the following:

   session.radius.last.attr.class,
   expr { [mcget {temp.radius.last.attr.class.decoded}] }

In this way, when you log out, and APM sends the RADIUS Stop accounting message, it uses the decoded value that is saved in the session.radius.last.attr.class variable.

920517-2 : Rate Shaping Rate Class 'Queue Method' and 'Drop Policy' defaults are incorrect in the GUI

Component: TMOS

Symptoms:
When creating a Rate Shaping Rate Class in the GUI, the default values for 'Queue Method' and 'Drop Policy' are not correct.

Conditions:
-- Creating a Rate Shaping Rate Class in the GUI.
-- Leaving 'Queue Method' and 'Drop Policy' settings as their defaults.

Impact:
Unexpected values in the configuration: 'Queue Method' is 'sfq' and 'Drop Policy' is 'tail'.

Workaround:
You can use either of the following workarounds:

-- Manually set the 'Queue Method' and 'Drop Policy' when creating a Rate Shaping Rate Class object. These settings are available in the 'Advanced' view of the 'General Properties' section. 'Queue Method' should be 'pfifo' and 'Drop Policy' should be 'fred'.

-- Use TMSH to create Rate Shaping Rate Class objects.

920285 : WS::disconnect may result in TMM crash under certain conditions

Component: Local Traffic Manager

Symptoms:
The WebSocket profile allows use of the WS::disconnect iRule command to gracefully terminate a connection with a client or a server. Use of this command may result in crash if tmm parts the iRule before execution completes.

Conditions:
-- BIG-IP has a virtual server configured with a WebSocket profile.
-- An iRule the includes the WS::disconnect command is attached to the virtual server.
-- BIG-IP is under heavy load and/or the iRule requires an extended time to execute, which might happen, for example, during execution on an iRule, tmm might park the iRule execution because the operation takes more CPU cycle than tmm can allocate to complete the iRule execution.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

920205-4 : Rate shaping might suppress TCP RST

Component: Local Traffic Manager

Symptoms:
When rate shaping is configured, the system might suppress TCP RSTs issued by itself.

Conditions:
Rate shaping is configured.

Impact:
The rate-shaping instance drops TCP RSTs; the endpoint is not informed about the ungraceful shutdown.

Workaround:
Do not use rate-shaping.

920149-1 : Live Update default factory file for Server Technologies cannot be reinstalled

Component: Application Security Manager

Symptoms:
Live Update default factory file for Server Technologies cannot be reinstalled once it is no longer the currently installed update file.

Conditions:
This occurs:

-- Once another update file for Server Technologies has been installed (most likely, a newer file).
-- If the device has been upgraded from a prior release such that the currently installed Server Technologies file is from the previous release, and is not the default factory file for the current release.

Impact:
Live Update default factory file for Server Technologies cannot be reinstalled.

Workaround:
None.

919861-1 : Tunnel Static Forwarding Table does not show entries per page

Component: TMOS

Symptoms:
On the Network :: Tunnels page of the GUI, if the Tunnel Static Forwarding Table contains more than one page of data, you are unable to advance past the first page.

Conditions:
Tunnel Static Forwarding Table contains a large number of configured tunnels.

Impact:
The content displayed on screen and does not conform to the system preference for Records Per Screen.

Workaround:
None.

919401-2 : Disallow adding Request Adapt Profiles and Response Adapt Profiles to virtual servers in TMSH when ICAP is not licensed

Component: TMOS

Symptoms:
If ICAP is not licensed, the system does not prevent you from adding Request Adapt Profiles and Response Adapt Profiles to virtual servers in the CLI. If these profiles are configured, traffic does not pass through the virtual server and the following error is reported in /var/log/ltm:

crit tmm[3328]: 01010022:2: ICAP feature not licensed

Conditions:
-- ICAP is not licensed.
-- At least one virtual server has been configured with a Request Adapt Profile and/or a Response Adapt Profile.

Impact:
Traffic does not pass through the affected virtual servers.

Workaround:
Remove any configured Request Adapt Profiles and Response Adapt Profiles from virtual servers.

919317-5 : NSM consumes 100% CPU processing nexthops for recursive ECMP routes

Component: TMOS

Symptoms:
The NSM process might enter a state where it gets stuck at 100% CPU usage.

Conditions:
ECMP routes reachable via recursive nexthops.

Impact:
NSM is stuck at 100% CPU usage.

Workaround:
Avoid using EMCP routes reachable via recursive nexthops.

919185-2 : Request adapt and response adapt profile options should not be available in the GUI when ICAP is not licensed

Component: TMOS

Symptoms:
The Request Adapt Profile and Response Adapt Profile settings are visible when creating or editing a virtual server in the GUI on systems that do not have ICAP licensed. If these profiles are configured, traffic does not pass through the virtual server and the following error is reported in /var/log/ltm:

crit tmm[3328]: 01010022:2: ICAP feature not licensed

Conditions:
-- ICAP is not licensed.
-- At least one virtual server has been configured with a Request Adapt Profile and/or a Response Adapt Profile.

Impact:
Traffic does not pass through the affected virtual servers.

Workaround:
Remove any configured Request Adapt Profiles and Response Adapt Profiles from virtual servers.

918905-2 : PCCD restart loop when using more than 256 FQDN entries in Firewall Rules

Component: Advanced Firewall Manager

Symptoms:
PCCD enters a restart loop, until the configuration is changed such that 256 or fewer FQDN entries are in use. Errors are reported to the terminal screen:

pccd[23494]: 015d0000:0: pccd encountered a fatal error and will be restarted shortly...

Conditions:
Greater than 256 FQDN entries are in use in Firewall Rules.

Impact:
PCCD goes into a restart loop. PCCD is not functional until there are 256 or fewer entries.

Workaround:
Use 256 or fewer FQDN entries in Firewall Rules.

To aid in the removal of extra rules when using tmsh, you can prevent PCCD restart messages from flooding the console:
1. Stop PCCD to halt the restart messages:
bigstart stop pccd
2. Modify the configuration.
3. Bring PCCD back up:
bigstart start pccd

918717-2 : Exception at rewritten Element.innerHTML='<a href></a>'

Component: Access Policy Manager

Symptoms:
If the "href" attribute of an anchor tag in a web application does not have any value, an exception will be thrown.

Conditions:
-- Rewrite enabled
-- The href attribute of an anchor tag on a web page does not have a value, for example:

<script>
    d = document.createElement('div')
    try {
      d.innerHTML = "<a href b=1>click</a>"
    }catch(e){
      alert(e.message);
    }
  </script>

Impact:
Web page does not load properly.

Workaround:
Find the "href" attributes of anchor tag and give some empty value to it:

Before:
<a href></a>

After:
<a href=""></a>

918693-4 : Wide IP alias validation error during sync or config load

Component: Global Traffic Manager (DNS)

Symptoms:
DB validation exception occurs during sync or config load:

01070734:3: Configuration error: DB validation exception, unique constraint violation on table (gtm_wideip_alias) object ID (1 /Common/alias.test.com www.test.com). A duplicate value was received for a non-primary key unique index field. DB exception text (Cannot update_indexes/checkpoint DB object, class:gtm_wideip_alias status:13)
Unexpected Error: Loading configuration process failed.

Conditions:
-- Wide IP has an alias associated with it.
-- Sync or load the config.

Impact:
You are unable to load config or full sync from peer GNS/GTM.

Workaround:
Follow this procedure:
1. Delete the wide IP alias on the destination device.
2. Try the sync or load config operation again.

918409-2 : BIG-IP i15600 / i15800 does not monitor all tmm processes for heartbeat failures

Component: TMOS

Symptoms:
If a BIG-IP device has more than 24 tmm instances and one of the tmm processes above the 24th cpu loops (e.g., in response to an internal issue), it loops indefinitely.

Conditions:
-- BIG-IP i15600 / i15800 platforms.
-- Another issue occurs that that causes a tmm process greater than the 24th tmm process to loop.

Impact:
Traffic disrupted on the tmm process that is looping indefinitely.

Workaround:
1. Manually change /defaults/daemon.conf to include the appropriate tmm number and respective heartbeat action if the supported tmm is not listed.

Note: The change does not persist across software installs.

    a. mount -o remount,rw /usr
    b. Edit /defaults/daemon.conf and put these contents at the top of the file:

sys daemon-ha tmm24 {
    description none
    heartbeat enabled
    heartbeat-action go-offline-downlinks-restart
    running enabled
    running-timeout 2
}
sys daemon-ha tmm25 {
    description none
    heartbeat enabled
    heartbeat-action go-offline-downlinks-restart
    running enabled
    running-timeout 2
}
sys daemon-ha tmm26 {
    description none
    heartbeat enabled
    heartbeat-action go-offline-downlinks-restart
    running enabled
    running-timeout 2
}
sys daemon-ha tmm27 {
    description none
    heartbeat enabled
    heartbeat-action go-offline-downlinks-restart
    running enabled
    running-timeout 2
}

    c. mount -o remount,ro /usr

2. After performing the edit, load the changes into the running configuration via 'tmsh load sys config partitions all'.
3. Verify that sod is now correctly monitoring tmm instances above tmm24 using a command such as:

    tmsh show sys ha-status all-properties | grep "daemon-heartbeat" | grep tmm

918277-2 : Slow Ramp does not take into account pool members' ratio weights

Component: Local Traffic Manager

Symptoms:
When a pool member is within its slow-ramp period, and is a member of a pool that uses a static-ratio-based load balancing algorithm, its ratio weight is not taken into account when balancing connections to it. If it has a ratio that is higher than other pool members, this can result in a sudden influx of connections once the pool member exits the slow-ramp period.

Conditions:
-- Pool with a non-zero slow-ramp timeout and a static-ratio-based load balancing algorithm.
-- Pool members within the pool have different ratio weights.
-- At least one pool member is inside its slow-ramp period.

Impact:
The pool member could still be overwhelmed despite the attempt to slow-ramp connections to it.

Workaround:
None.

918053-1 : [Win][EdgeClient] 'Enable Always Connected mode' is checked for all connectivity profiles with same Parent profile.

Component: Access Policy Manager

Symptoms:
The default value of 'Enable Always Connected' becomes enabled for connectivity profiles after adding 'Server List' to one of the connectivity profiles with the same Parent profile.

Conditions:
-- Add 'Server List' to one of the connectivity profiles with the same Parent profile.
-- Enable the 'Always Connected mode' setting for one of the connectivity profiles.

Impact:
This change affects all of the connectivity profiles. The parent-child inheritance logic is broken.

Workaround:
Manually uncheck the setting in all new profiles where 'Enable Always Connected' is not needed.

918013-1 : Log message with large wchan value

Component: TMOS

Symptoms:
A message is logged with a very large wchan (waiting channel, WCHAN :: Sleeping in Function) value that corresponds to -1 when read as signed instead of unsigned.

Conditions:
This happens in normal operation.

Impact:
The message is not accurately reporting the wchan value

Workaround:
Look at the /proc/PID/stack file for the correct wchan value.

917637-2 : Tmm crash with ICAP filter

Component: Service Provider

Symptoms:
Tmm crashes while passing traffic.

Conditions:
-- Per-request policies configured.
-- ICAP is configured.

This is rare condition that occurs intermittently.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

916485-2 : Tmsh install sys crypto key (SafeNet) command creates a duplicate mcp object

Component: Local Traffic Manager

Symptoms:
Running 'tmsh install sys crypto key' command for SafeNet keys creates a new mcp object with the keyname as the label name in HSM, and with the duplicate key-id.

Conditions:
This happens when trying to install the key using the key-label as the argument.

Impact:
Even after deleting the tmsh key (tmsh delete sys crypto key), the BIG-IP system can still pass traffic because there's a duplicate key pointing to the same key in the HSM.

Workaround:
None.

915969-1 : Truncated QUIC connection close reason

Component: Local Traffic Manager

Symptoms:
The connection close reason in QUIC is limited to 5 bytes prior to the path being validated. This makes it difficult to debug early connection failures.

Conditions:
A connection close is sent in QUIC before the path is validated.

Impact:
Connection close reason is limited to 5 bytes before the path is validated.

Workaround:
None

915829-2 : Particular Users unable to login with LDAP Authentication Provider

Component: TMOS

Symptoms:
With LDAP as authentication provider, some administrative users are unable to login to BIG-IP.

Conditions:
-- LDAP remote authentication.
-- Certain users, whose characteristics have not been identified.

Impact:
Certain client users cannot login to administer the BIG-IP system.

Workaround:
None.

915773-1 : Restart of TMM after stale interface reference

Component: Local Traffic Manager

Symptoms:
An assert is reported in the logs:
panic: ../net/ifc.c:975: Assertion "ifc ref valid" failed.

Conditions:
The conditions under which this occurs are unknown.

Impact:
Tmm crashes and restarts. Traffic disrupted while tmm restarts.

Workaround:
None.

915557-2 : The pool statistics GUI page fails (General database error retrieving information.) when filtering on pool status.

Component: TMOS

Symptoms:
When using the pool statistics GUI page, the page stops displaying and the GUI shows the following error:

General database error retrieving information.

Conditions:
You attempt to apply a Status filter (e.g., Available) to display only some pools.

Impact:
The Status filter is not usable. Additionally, the page continues not to display even after you navigate away from the page and later return to it.

Workaround:
There is no workaround to prevent the issue, but if you wish to access that page again (and not use the Status filter), you can do so by clearing your browser's cache.

915509-1 : RADIUS Access-Reject Reply-Message should be printed on logon page if 'show extended error' is true

Component: Access Policy Manager

Symptoms:
After enabling 'show-extended-error' on the RADIUS Auth agent, instead of seeing the expected message: 'The username or password is not correct. Please try again.', the system reports the message: (error: Access-Reject).

Conditions:
RADIUS Auth with 'show-extended-error' enabled.

Impact:
The content of the Reply Message is not reported. The actual reported error message is confusing and provides no assistance in resolving the condition causing the access error: username, password, passcode, or tokencode.

Workaround:
None.

915493-4 : imish command hangs when ospfd is enabled

Component: TMOS

Symptoms:
Running the imish command hangs when ospfd is enabled.

Conditions:
-- Dynamic routing enabled.
-- The ospfd protocol is enabled.
-- Running the imish command.

Impact:
The imish operation hangs.

Workaround:
Restart the ospfd daemon.

915473-1 : Accessing Dashboard page with AVR provisioned causes continuous audit logs

Component: TMOS

Symptoms:
Navigating to Statistics :: Dashboard in the GUI with AVR or APM provisioned causes continuous audit logging and restjavad logs.

Conditions:
-- AVR provisioned
-- An administrator navigates to Statistics :: Dashboard.

Impact:
The continuous extra logs might lead to confusion and may not be helpful.

Workaround:
None.

915221-4 : DoS unconditionally logs MCP messages to /var/tmp/mcpd.out

Component: Advanced Firewall Manager

Symptoms:
Excessive and large DoS debug messages associated with tmsh commands and stat queries are logged to /var/tmp/mcpd.out which is not log-rotated.

Conditions:
-- AFM is provisioned.
-- DoS queries executed via tmsh.

Impact:
Disk space is consumed on the filesystem for /var/tmp, which can eventually lead to follow-on failures when the disk fills up.

Workaround:
Delete or purge /var/tmp/mcpd.out.

915141-2 : Availability status of virtual server remains 'available' even after associated pool's availability becomes 'unknown'

Component: TMOS

Symptoms:
Availability status of virtual server can be left 'available' even if the corresponding pool's availability becomes 'unknown'.

Conditions:
- Pool member is configured as an FQDN node.
- You set monitor to 'none' with the pool.

Impact:
Inconsistent availability status of pool and virtual server.

Workaround:
Set the FQDN node to 'force offline', and then 'enable'. This triggers virtual server's status updates and syncs to pool.

915133-3 : Single Page Application can break the page, when hooking is done by the end server application.

Component: Application Security Manager

Symptoms:
When the end server application hooks some of the XHR callback functions (onload, onreadystate, send, open..), and a Single Page Application is used, the application page may malfunction.

Conditions:
This may occur when a server application hooks some XHR callbacks, and one of the following:

-- Bot Defense Profile with 'Single Page Application' enabled and attached to the virtual server.

-- ASM Policy with 'Single Page Application' enabled and a JS feature is attached to the virtual server.

-- DoS Profile with Application Security and 'Single Page Application' enabled and is attached to the virtual server.

Impact:
Web page does not render properly. It might result in a blank page, missing functionality, etc.

Workaround:
Run the command:
tmsh modify sys db dosl7.parse_html_inject_tags value "after,body"

915005-1 : AVR core files have unclear names

Component: Application Visibility and Reporting

Symptoms:
If avrd fails a core file created in this case is named accordung to the thread name and has no indication that it belongs to avr, for example: SENDER_HTTPS.bld0.0.9.core.gz

Conditions:
Avrd fails with a core

Impact:
It is inconvenient for identifying the process that caused the core.

914589-2 : VLAN Failsafe timeout is not always respected

Component: Local Traffic Manager

Symptoms:
VLAN Failsafe timeout is triggered later than its configured interval.

Conditions:
-- Rarely happen on first failover. More commonly occurs on 3rd/4th failover.
-- Specific conditions that cause this issue are not known.

Impact:
VLAN Failsafe timeout might be triggered later than it is configured.

The exact impact varies based on the configuration and traffic activity.

Workaround:
Use another form of automatic failover if needed (gateway failsafe, ha-groups, etc.).

914309-3 : TMM crash seen with FTP and Classification profiles

Component: Local Traffic Manager

Symptoms:
TMM might core and restart when FTP traffic is being proxied by a BIG-IP device.

Conditions:
-- Both FTP and Classification profiles are applied to a virtual server.
-- The FTP profile has inherit-parent-profile enabled.

Impact:
-- TMM crashes and restarts
-- Failover, loss of service during restart.
-- Traffic disrupted while tmm restarts.

Workaround:
None.

914277-2 : [ASM - AWS] - Auto Scaling BIG-IP systems overwrite ASU

Component: Application Security Manager

Symptoms:
When a Cloud Auto Scaling deployment is set up using F5's Auto Scale Template, and ASM Live Update is configured with Automatic Download enabled, Live Update configuration may be overwritten during a scale out event when a new host joins the sync cluster. This is caused by a config sync from the new device to the master device, before the master has a chance to sync the configuration to the new device, causing the configuration in the master device to be overwritten.

Impact:
Live Update configuration of all devices in the Auto Scale group is overwritten.

914061-2 : BIG-IP may reject a POST request if it comes first and exceeds the initial window size

Component: Local Traffic Manager

Symptoms:
HTTP/2 protocol allows a negative flow-control window on initial stage of communication while first 65,535 bytes of payload are delivered from a peer. BIG-IP may break this requirement.

Conditions:
-- BIG-IP has a virtual server with http2 profile.
-- A configured receive window size in the http2 profile is below 64K (default 32K).
-- A peer sends POST request with payload exceeding initial receive window size over HTTP/2 connection.

Impact:
BIG-IP denies the POST request and sends RST_STREAM.

913917-2 : Unable to save UCS

Component: Global Traffic Manager (DNS)

Symptoms:
You are unable to create a backup UCS.

You see a warning in /var/log/restjavad.0.log:

[WARNING][8100/tm/shared/sys/backup/306b4630-aa74-4a3d-af70-0d49bdd1d89e/worker UcsBackupTaskWorker] Failure with backup process 306b4630-aa74-4a3d-af70-0d49bdd1d89e.
This is followed by a list of some files in /var/named/config/namedb/.

Conditions:
Named has some Slave zones configured and is going through frequent zone transfer.

Impact:
You are unable to create a UCS file.

Workaround:
Stop named zone transfer while doing UCS backup.

913713-2 : Rebooting a blade causes MCPd to core as it rejoins the cluster

Component: TMOS

Symptoms:
Tmm and mcpd cores for slot2

Conditions:
On the standby chassis, reboot the primary blade and wait for it to rejoin the cluster. Once it does, mcpd will core.

Impact:
Traffic disrupted while tmm and mcpd mcpd restarts.

Workaround:
N/A

913573-2 : Unable to complete REST API PUT request for 'tm/ltm/data-group/internal' endpoint.

Component: TMOS

Symptoms:
When REST API PUT request is call to modify LTM data-group internal without 'type' field in body-content, it fails intermittently with a 400 error.

--{"code":400,"message":"invalid property value \"type\":\"\"","errorStack":[],"apiError":26214401}

The 'type' field is not getting populated with default value and is set to null string "" instead.

Conditions:
-- PUT REST API request used to modify LTM data-group internal.
-- Type field is not specified in the body-content.

Impact:
Unable to update the configuration object (LTM data-group internal) with REST API PUT.

Workaround:
Include 'type' field inside PUT request body content for the operation to succeed.

Example Curl Command:
-- curl -isku <username>:<password> -H "Content-Type: application/json" -X PUT -d '{"records":[{"name":"1.1.1.1"}, {"name":"1.1.1.2"}], "type":"ip"}' https://localhost/mgmt/tm/ltm/data-group/internal/~Common~<Name>

913385-1 : TMM generates core while deleting iFiles

Component: Local Traffic Manager

Symptoms:
While deleting iFiles, TMM might crash and generates a core.

Conditions:
-- There is any ifile command in an iRule where you are giving a list object to the file name argument instead of to a string object, for example:

The 2nd line returns a list object, and the 3rd line is giving it to ifile command:

set ifile_name tcl.1
set ifile_name [lsearch -glob -inline [ifile listall] "*$ifile_name"]
ifile get $ifile_name

-- A request is processed by the iRule.
-- Attempt to delete the file in which the issue occurred.

Impact:
TMM crashes and restarts, triggering failover in high availability (HA) configurations. Traffic disruption while TMM restarts on a standalone configuration.

Workaround:
Ensure that the iRule gives a string object to ifile commands. Here is a sample iRule that implements the workaround:

set ifile_name tcl.1
set ifile_name [lsearch -glob -inline [ifile listall] "*$ifile_name"]
ifile get [format "%s" $ifile_name]

912761-2 : Link throughput statistics are different

Component: Global Traffic Manager (DNS)

Symptoms:
Different link throughput statistics are seen on GTM/DNS systems that are connected by full-mesh iQuery.

Conditions:
-- The same link is used on different BIG-IP addresses as a pool member in the default gateway pool.
-- A forwarding virtual server is used.

Impact:
Each GTM/DNS server might get different link throughput for the same link, and therefore make less-than-optimal decisions.

Workaround:
Do not use the same uplink for different BIG-IP devices.

912517-2 : MySQL monitor marks pool member down if 'send' is configured but no 'receive' strings are configured

Component: Local Traffic Manager

Symptoms:
If an LTM database monitor type (MySQL, MSSQL, Oracle, or PostgreSQL database monitor type) is configured with a 'send' string but with no 'receive' string to issue a user-specified database query, pool members using this monitor are marked DOWN, even though a connection to the configured database completed successfully.

Conditions:
-- An LTM pool or pool members is configured to use an LTM database (MySQL, MSSQL, Oracle or PostgreSQL) monitor type.
-- A 'send' string is configured for the monitor.
-- A 'receive' string is not configured.

Impact:
The database monitor marks the pool member down, even in cases where the pool member is actually pingable.

Workaround:
To work around this issue, configure 'send' and 'recv' strings for the database monitor that will always succeed when successfully connected to the specified database (with the configured username and password, if applicable).

912293-3 : Persistence might not work properly on virtual servers that utilize address lists

Component: Local Traffic Manager

Symptoms:
-- Connections to the virtual server might hang.
-- Increased tmm CPU utilization.

Conditions:
-- A virtual server is configured with a traffic-matching-criteria that utilizes a source-address-list and/or destination-address-list.

-- The virtual server utilizes certain persistence one of the following persistence types:
  + Source Address (but not hash-algorithm carp)
  + Destination Address (but not hash-algorithm carp)
  + Universal
  + Cookie (only cookie hash)
  + Host
  + SSL session
  + SIP
  + Hash (but not hash-algorithm carp)

Impact:
-- High tmm CPU utilization.
-- Stalled connections.

Workaround:
Enable match-across-virtuals in the persistence profile.

Note: Enabling match-across-virtuals might might affect the behavior of other virtual servers in the configuration that utilize persistence.

912253-1 : Non-admin users cannot run show running-config or list sys

Component: TMOS

Symptoms:
Lower-privileged users, for instance guests or operators, are unable to list the configuration in tmsh, and get an error:

Unexpected Error: Can't display all items, can't get object count from mcpd.

The list /sys or list /sys telemd commands trigger the following error:

01070823:3: Read Access Denied: user (oper) type (Telemd configuration).

Conditions:
User account with a role of guest, operator, or any role other than admin.

Impact:
You are unable to show the running config, or use list or list sys commands.

Workaround:
Logon with an account with admin access.

912149-5 : ASM sync failure with Cgc::Channel error 'Failed to send a message, error:15638476'

Component: Application Security Manager

Symptoms:
The system exhibits various symptoms related to sync and control plane, and reports errors similar to the following:

/var/log/:
-- (asm_config_server.pl,F5::Cgc::Channel::send): Failed to send a message, error:15638476.

ts_debug.log:
-- |ZEROMQ|May 21 23:27:31.840|24813|25914|25914|epoll.cpp:0060|~epoll_t()|(zmq_assert) Assertion failed: load.get () == 0

Conditions:
-- Two devices in a sync-failover/sync-only device group.
-- Other conditions required to reproduce this issue are under investigation.

Note: The occurrences of the Cgc::Channel message in the /var/log/ and /var/log/ts/asm_config_server logs are the most reliable indicator of this issue.

Impact:
-- Config-sync does not work, resulting in a different configuration among the devices in a sync group.

-- Security log profile changes are not propagated to other devices.

-- Portions of the GUI hang, e.g.: Security module tab, and 'security' menu under virtual server.

-- Policies with learning enabled do not generate learning suggestions.

Workaround:
Restart asm_config_server on the units in the device group.

# pkill -f asm_config_server

911853-5 : Stream filter chunk-size limits filter to a single match per ingress buffer

Component: Local Traffic Manager

Symptoms:
The chunk-size profile setting of the stream filter limits memory by capping the match string allocated from an ingress buffer to <chunksize> bytes. This implicitly limits the maximum size of the match, potentially resulting in missed matches beyond chunk-size within the same ingress buffer. For more information, see:

https://support.f5.com/csp/article/K39394712

Conditions:
A stream filter is configured with the chunk-size parameter set and ingress data arrives which contains matches beyond the configured chunk-size in the buffer.

Impact:
Potential matches beyond the configured chunk-size will be sent unmodified by the stream filter, potentially resulting in missed matches.

Workaround:
None.

911713-3 : Delay in Network Convergence with RSTP enabled

Component: TMOS

Symptoms:
The BIG-IP system does not to Rapid Spanning Tree Protocol (RSTP) Bridge Protocol Data Units (BPDUs) with only the proposal flag ON (i.e., without the agreement flag ON).

Conditions:
-- Neighbor Switch sends RSTP BPDU with only proposal flag ON.
-- The agreement flag is not ON.

Impact:
Network convergence takes more time than expected.

Workaround:
None.

911585-3 : PEM VE does not send CCRi when receiving multiple subscriber requests in a short interval

Component: Policy Enforcement Manager

Symptoms:
PEM sessions go to a stale state and the Credit Control Request (CCRi) is not sent.

Conditions:
-- PEM is configured and passing normal PEM traffic.
-- Using BIG-IP Virtual Edition (VE)

Impact:
Session is not established.

Workaround:
None.

911241-6 : The iqsyncer utility leaks memory for large bigip_gtm.conf file when log.gtm.level is set to debug

Component: Global Traffic Manager (DNS)

Symptoms:
The iqsyncer utility leaks memory.

Conditions:
-- There is a large bigip_gtm.conf.
-- The log.gtm.level is set to debug.

Impact:
The iqsyncer utility exhausts memory and is killed.

Workaround:
Do not set log.gtm.level equal to or higher than debug.

910965-2 : Overflow of Multicast table filling the tmm log

Component: Local Traffic Manager

Symptoms:
Whenever a new multicast entry is added to an already full table, an error is logged to /var/log/tmm

Conditions:
This warning occurs when the multicast table is full

Impact:
When this condition occurs, this can fill the tmm log with these warning messages

Workaround:
None.

910905-1 : Unexpected tmm core

Component: Local Traffic Manager

Symptoms:
A tmm core occurs unexpectedly and causes a failover event.

Conditions:
This can occur while tmm is in normal operation. An internal error occurs when deleting an old SSL session during SSL handshake.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

910777-3 : Sending ASM report via AWS SES failed duo to wrong content type

Component: Application Visibility and Reporting

Symptoms:
When you attempt to send an ASM report via AWS SES, the message bounces with the following message:
Could not send e-mails: SMTP Error: data not accepted.; Transaction failed: Expected MIME type, got ;; Error code: 554.

This occurs because the BIG-IP system is sending out the report message with an empty Content-Type in the multipart MIME, which the AWS mail host cannot process.

Conditions:
This is encountered in the following scenario:
1. Set up SMTP and ASM schedule report.
2. Click Send Now, and get the error message in GUI.
3. SSH into the BIG-IP system.
4. Add this line under the following snippet:

[admin@bigip:Active:Standalone] ~ # chmod 644 /var/ts/dms/script/avrexport/avrmail.php
[admin@bigip:Active:Standalone] ~ # vi /var/ts/dms/script/avrexport/avrmail.php

if (!$mail_subject) $mail_subject = "BIG-IP Analytics Report";
if (!$mail_body) $mail_body = "Attached to this e-mail is a BIG-IP Analytics Report issued at $mail_time\n\n";
if (!$mail_from) $mail_from = 'BIG-IP Reporter';
if (!$mail_content_type) $mail_content_type = 'text/html'; <<<< Add this line for add text/html into content type.

[admin@bigip:Active:Standalone] ~ # chmod 444 /var/ts/dms/script/avrexport/avrmail.php

5. Click Send Now again and it works.

Note: To use AWS SES, you must verify your email address first (as a Sender). You can search SES in AWS and verify your email in Email Addresses. AWS sends an email. Click the embedded link after receipt, and then you can use it as the Sender address on the BIG-IP system.

Impact:
Cannot receive ASM reports.

910673-4 : Nethsm-thales-install.sh installation fails with error 'Could not reach Thales HSM'

Component: Local Traffic Manager

Symptoms:
Thales installation script fails with error message.

ERROR: Could not reach Thales HSM "<ip>". Make sure the HSM IP address is correct and that the HSM is accessible to the BIG-IP.

Conditions:
This occurs when the ICMP ping is blocked between the BIG-IP system and netHSM.

Impact:
Thales/nCipher NetHSM client software installation fails.

Workaround:
Unblock ICMP ping between the BIG-IP system and netHSM.

910645-1 : Upgrade error 'Parsing default XML files. Failed to parse xml file'★

Component: TMOS

Symptoms:
After upgrading BIG-IP APM, multiple error messages appear in /var/log/ltm:

-- err mcpd[5352]: 010713cf:3: Parsing default XML files. Failed to parse xml file (/var/sam/www/client/customization-source/Common/modern/secure_access_client/default_secure_access_client.xml) because Failed to stat file (/var/sam/www/client/customization-source/Common/modern/secure_access_client/default_secure_access_client.xml) errno(2) strerror(No such file or directory)
-- err mcpd[5352]: 010713cf:3: Parsing default XML files. Failed to parse xml file (/var/sam/www/client/customization-source/Common/modern/resource_app_tunnel/default_resource_app_tunnel.xml) because Failed to stat file (/var/sam/www/client/customization-source/Common/modern/resource_app_tunnel/default_resource_app_tunnel.xml) errno(2) strerror(No such file or directory)

Conditions:
-- APM configuration.
-- Upgrade the BIG-IP system to v15.1.0 or newer.

Impact:
These are benign messages that do not indicate a functional issue. There is no impact; the system works correctly.

The errors occur when the upgraded BIG-IP APM configuration attempts to load resource definitions for the modern customization schema. However, by design, the modern customization schema does not define resources. Only the standard customization schema defines resources found under '/var/sam/www/client/customization-source/Common/standard/'.

Workaround:
None.

910325 : DDoS Vector - TCP BAD ACK is not hardware-accelerated

Component: TMOS

Symptoms:
There is no FPGA support for vector number 105 (FPGA vector number). This is an L4 DDoS vector that rate limits the number of incorrect TCP ACK Cookies. The vector is commonly referred to as ACK_Cookie_Bad.

Conditions:
This is encountered when a TCP BADACK DDoS vector is detected.

Impact:
This vector is not hardware accelerated. The DDoS mitigation can rely only on software support for this DDoS vector.

Workaround:
None.

910273-2 : SSL Certificate version always displays as '1' in the GUI

Component: Local Traffic Manager

Symptoms:
In GUI an SSL certificate's version is displayed as '1', even if its version is higher than 1.

Conditions:
-- Viewing an SSL certificate in the GUI.
-- The SSL certificate's version is higher than 1.

Impact:
SSL certificate's version is displayed as '1'. There is no functional impact.

Workaround:
None.

910213-2 : LB::down iRule command is ineffective, and can lead to inconsistent pool member status

Component: Local Traffic Manager

Symptoms:
Use of the LB::down command in an iRule may not have the desired effect, or may result in pool members that are down for load balancing, but indicate up/available in the GUI and CLI.

Specifically, the pool member is marked down within the tmm instance executing the iRule, but the status change is not updated to mcpd, or to other tmm instances.

As a result, the message 'Pool /Common/mypool member /Common/1.1.1.1:80 monitor status iRule down' does not appear in the log, and the status of the pool member is not updated when viewed in the GUI or via 'tmsh show ltm pool xxxx members'.

Note: If [event info] is logged in the LB_FAILED event, it will indicate that the load balancing decision failed due to "connection limit"

Conditions:
Using the LB::down command in an iRule.

Impact:
Because mcpd believes the pool member to be up, it does not update tmm's status, so tmm continues to regard it as down indefinitely, or until a monitor state change occurs.

If the LB::down command is used on all members of a pool, the affected tmms cannot load balance to that pool, even though the GUI/tmsh indicate that the pool has available members.

Because pool member status is stored on per-tmm basis and incoming connections are distributed across tmms using a hash, this can lead to apparently inconsistent results, where some traffic (traffic hitting a particular tmm) is rejected with an RST cause of 'No pool member available'.

Workaround:
- Delete and recreate affected pool members
(or) Restart tmm
(or) Restart the BIG-IP.

There is no direct workaround, but the use of an inband monitor instead of the LB::down command may be effective. You must tune the inband monitor's settings to values consistent with the desired behavior.

910105-1 : Partial HTTP/2 payload may freeze on the BIG-IP system

Component: Local Traffic Manager

Symptoms:
HTTP/2 allows sending the payload in both directions gradually, until a frame with an END_STREAM flag closes a direction. The BIG-IP does not properly handles an early response from a server when HTTP router is configured on a virtual and partial payload sent in each direction. In this case, communication over the stream hangs.

Conditions:
-- Virtual server is configured on the BIG-IP system with HTTP and HTTP/2 profiles on both the client and server sides.
-- HTTP router profile is configured on the virtual server.
-- Client sends a request and delivers a partial payload, waiting for a response from a server.
-- Server responds with a partial payload.

Impact:
A response with a partial payload is not delivered to a client. Communication freezes on that specific stream.

Workaround:
None.

909997-3 : Virtual server status displays as unavailable when it is accepting connections

Component: Local Traffic Manager

Symptoms:
After a rate limit is triggered and released, the virtual server status in the GUI remains as 'unavailable'. The virtual server resumes accepting new connections while the GUI shows the virtual server is unavailable.

Conditions:
-- The virtual server has a source address list configured.
-- Address lists define more than one address.
-- The connections are over the rate limit, and the virtual server status is marked unavailable.
-- The number of connections falls below the limit.

Impact:
Actual virtual server status is not reflected in GUI.

Workaround:
If the deployment design allows, you can use either of the following workarounds:

-- Remove the source address list from the virtual server.

-- Have a single address in the source address list.

909677-2 : HTTP/2 full proxy always sets the :scheme pseudo-header for HTTPS requests where the server-side connection is not encrypted

Component: Local Traffic Manager

Symptoms:
When using HTTP/2, the :scheme pseudo-header appears to always be set to HTTPS on requests, even when the server-side connection is not encrypted.

Conditions:
-- Using an HTTP/2 virtual server.
-- The server-side connection that is unencrypted.

Impact:
The impact of this issue varies based on how the application reacts at the server-side.

Workaround:
None.

909505-3 : Creating LTM data group external object fails.

Component: TMOS

Symptoms:
iControl REST command to create a data group fails if you do not set the externalFileName variable.

The same command works in tmsh, and you are not required to specify the externalFileName.

Conditions:
-- Creating a data group using iControl REST.
-- POST payload does not contain the externalFileName variable.

Impact:
You are unable to create the data group.

Workaround:
The command works if you specify the externalFileName parameter:

curl -sku $PASS https://$HOST/mgmt/tm/ltm/data-group/external -X POST -H "Content-type: application/json" -d '{"name":"fooBar", "externalFileName":"fooBar.txt"}'

909485-3 : Deleting LTM data-group external object incorrectly reports 200 when object fails to delete

Component: TMOS

Symptoms:
When you delete an LTM external data-group object using iControl REST, it incorrectly returns '200 OK' even though the object is not deleted.

Conditions:
-- Deleting an external data-group object via iControl REST.
-- The LTM external data-group object is referenced by another object (such as an iRule).

Impact:
The object still exists, even though the system returns a '200 OK' message indicating that the operation completed successfully.

Workaround:
None.

909197-3 : The mcpd process may become unresponsive

Component: TMOS

Symptoms:
-- The mcpd process is killed with SIGABRT by the sod watchdog due to failed heartbeat check.
-- There is high memory usage by the mcpd process prior to getting killed.
-- There is an mcpd core file contains a very long string. The core might contain a repeating pattern of '{ } { } { } ...'.

Conditions:
The mcpd process receives a malformed message from one of the control plane daemons.

Impact:
-- There is a temporary lack of responsiveness related to actions of inspecting and/or modifying system configuration: GUI, TMSH, etc., operations may fail or time out.
-- SNMP queries might go unanswered.
-- System daemons restart.
-- Traffic disrupted while mcpd restarts.

Workaround:
None.

908829-1 : The iqsyncer utility may not write the core file for system signals

Component: Global Traffic Manager (DNS)

Symptoms:
In certain instances, the iqsyncer utility may not write the core file for system signals.

Conditions:
-- SELinux policies enabled.
-- Run the iqsyncer utilities to initiate a core dump with system signals SIGABRT, SIGQUIT, and SIGSEGV.

Impact:
The iqsyncer utility does not write core file.

Workaround:
Disable SELinux with 'setenforce 0'.

You can now generate a core with a SIGQUIT (-3), but not with SIGABRT or SIGSEGV.

908801-1 : SELinux policies may prevent from iqsh/iqsyncer dumping core

Component: Global Traffic Manager (DNS)

Symptoms:
SELinux policies may prevent the iqsh/iqsyncer utilities from dumping core information.

Conditions:
-- SELinux policies enabled.
-- Run the iqsh/iqsyncer utilities to initiate a core dump.

Impact:
The operation does not result in dumping the core information.

Workaround:
Disable SELinux with 'setenforce 0'.

908753-3 : Password memory not effective even when password policy is configured

Component: TMOS

Symptoms:
The BIG-IP system does not prevent you from specifying previously used passwords, even if Secure Password Enforcement is enabled with password memory set to a non-zero value.

Conditions:
-- Password memory in auth settings is not 0 (zero).
-- Attempt to specify a previously specified password

Impact:
Password history to prevent user from using same password is not enforced.

Workaround:
None.

908477-2 : Request-adapt plus request-logging causes HTTP double-chunking in an ICAP request

Component: Service Provider

Symptoms:
When an HTTP chunked request is sent to a virtual server that has both a request-adapt (e.g., for ICAP), and a request-logging profile attached, the request that is sent to the ICAP server is doubly chunked.

Conditions:
-- A virtual server is configured with both a request-adapt (ICAP) and request-logging profile.
-- HTTP chunked requests are sent to this virtual server.

Impact:
Data corruption in the HTTP stream.

Workaround:
You can use either of the following workarounds:

-- Force rechunking on the HTTP profile:
request-chunking rechunk

-- Remove the request-logging profile (and potentially log requests) using an iRule instead.

908453-3 : Trunks with names longer than 32 characters update working-mbr-count in vCMP guests incorrectly

Component: TMOS

Symptoms:
When a trunk is configured with a name longer than 32 characters on a vCMP host, guests update the working-mbr-count for the trunk incorrectly when another trunk on the host changes. This might result in vCMP guests failing over unexpectedly.

Conditions:
-- Trunk configured with a name longer than 32 characters on vCMP host.
-- Trunk made available to guests for high availability (HA) Group scoring.
-- At least one other trunk configured on vCMP host.
-- Interface state changes in any other trunk.

Impact:
The vCMP guests may fail over unexpectedly.

Workaround:
Do not use trunk names longer than 32 characters.

907873-2 : Authentication tab is missing in VPE for RDG-RAP Access Policy type

Component: Access Policy Manager

Symptoms:
Authentication tab is missing in Visual Policy Editor (VPE) for RDG-RAP Access Policy type

Conditions:
Configuration of RDG-RAP Access Policy type in VPE.

Impact:
Authentication tab with AD/LDAP Query agents is missing in VPE.

Workaround:
Use the tmsh cli configuration of AD/LDAP Query for RDG-RAP Access Policy type.

907645-1 : IPsec SAs may not be mirrored to HA standby

Component: TMOS

Symptoms:
Some IPsec Security Associations (SAs) may not be mirrored to the HA standby device.

Conditions:
-- HA mirrored configured
-- Many IPsec tunnels are established

Impact:
The HA standby system is unable to take over established tunnels when HA failover happens.

Workaround:
None

907177-2 : Priority of embedded APM iRules is ignored

Component: Local Traffic Manager

Symptoms:
Custom iRule events are executed before the embedded APM iRule events, despite the custom iRule's priority value being larger than the APM iRule's priority value.

Conditions:
-- APM is provisioned.
-- Custom iRule with a priority value larger the APM iRule's priority value.

Impact:
Custom iRule event is executed before APM iRule event.

Workaround:
None.

907045-2 : QUIC HANDSHAKE_DONE is sent at the end of first flight

Component: Local Traffic Manager

Symptoms:
QUIC does not send the HANDSHAKE_DONE immediately on conclusion of the handshake. Instead, it sends an entire flight of data first.

Conditions:
This happens in normal operation.

Impact:
The end user system has to store handshake state longer than it might have to otherwise.

Workaround:
None.

907025-3 : Live update error" 'Try to reload page'

Component: Application Security Manager

Symptoms:
When trying to update Attack Signatures. the following error message is shown:

Could not communicate with system. Try to reload page.

Conditions:
Insufficient disk space to update the Attack Signature.

Impact:
Live Update unable to restore the database during startup. Device runs out of disk space, which leads to failure in writing live update hsqldb log file. The liveupdatedb.script file, which is based on the .log file, is truncated and missing necessary settings in order to initialize the live update database.

Workaround:
This following procedure restores the database to its default, initial state:

1. Remove the sigfile.tmp.* directories under /var/ts/var/tmp.

2. Delete the script:
delete /var/lib/hsqldb/live-update/liveupdatedb.script

3. Create a new script:
create new /var/lib/hsqldb/live-update/liveupdatedb.script.

4. Add the following lines to create the live update database schema and set the SA user as expected:

CREATE SCHEMA PUBLIC AUTHORIZATION DBA
CREATE MEMORY TABLE AVAILABILITY(ID VARCHAR(255) NOT NULL,ERRORMESSAGE VARCHAR(255),LASTCHECKDATETIME BIGINT,LASTCHECKUPDATEFILE VARCHAR(255),STATUS VARCHAR(255),"TYPE" VARCHAR(255),CONSTRAINT AVAILABILITY_PK PRIMARY KEY(ID))
CREATE MEMORY TABLE INSTALLSCHEDULE(ID VARCHAR(255) NOT NULL,APPLYATALLTIMES BOOLEAN,APPLYONALLDAYS BOOLEAN,APPLYONFRIDAYS BOOLEAN,APPLYONMONDAYS BOOLEAN,APPLYONSATURDAYS BOOLEAN,APPLYONSUNDAYS BOOLEAN,APPLYONTHURSDAYS BOOLEAN,APPLYONTUESDAYS BOOLEAN,APPLYONWEDNESDAYS BOOLEAN,ENDTIME VARCHAR(255),FREQUENCY VARCHAR(255),STARTTIME VARCHAR(255),"TYPE" VARCHAR(255),CONSTRAINT INSTALLSCHEDULE_PK PRIMARY KEY(ID))
CREATE MEMORY TABLE UPDATEFILE(ID VARCHAR(255) NOT NULL,CREATEDATETIME BIGINT,FILELOCATION VARCHAR(255),FILENAME VARCHAR(255),ISFILEAVAILABLE BOOLEAN,ISFILEMANUALLYUPLOADED BOOLEAN,ISGENESIS BOOLEAN,MD5 VARCHAR(255),"TYPE" VARCHAR(255),CONSTRAINT UPDATEFILE_PK PRIMARY KEY(ID))
CREATE MEMORY TABLE INSTALLATION(ID VARCHAR(255) NOT NULL,ADDEDENTITIESCOUNT INTEGER,DELETEDENTITIESCOUNT INTEGER,ERRORMESSAGE VARCHAR(255),LASTREADMEFILENAME VARCHAR(255),LASTUPDATEMICROS BIGINT,LOADDATETIME BIGINT,MODIFIEDENTITIESCOUNT INTEGER,README VARCHAR(500000),STATUS VARCHAR(255),"TYPE" VARCHAR(255),UPDATEFILE_ID_OID VARCHAR(255),CONSTRAINT INSTALLATION_PK PRIMARY KEY(ID),CONSTRAINT INSTALLATION_FK1 FOREIGN KEY(UPDATEFILE_ID_OID) REFERENCES UPDATEFILE(ID))
CREATE INDEX INSTALLATION_N49 ON INSTALLATION(UPDATEFILE_ID_OID)
CREATE MEMORY TABLE INSTALLATION_DELETEDENTITYLIST(ID_OID VARCHAR(255) NOT NULL,"ELEMENT" LONGVARBINARY,IDX INTEGER NOT NULL,CONSTRAINT INSTALLATION_DELETEDENTITYLIST_PK PRIMARY KEY(ID_OID,IDX),CONSTRAINT INSTALLATION_DELETEDENTITYLIST_FK1 FOREIGN KEY(ID_OID) REFERENCES INSTALLATION(ID))
CREATE INDEX INSTALLATION_DELETEDENTITYLIST_N49 ON INSTALLATION_DELETEDENTITYLIST(ID_OID)
CREATE MEMORY TABLE INSTALLATION_MODIFIEDENTITYLIST(ID_OID VARCHAR(255) NOT NULL,"ELEMENT" LONGVARBINARY,IDX INTEGER NOT NULL,CONSTRAINT INSTALLATION_MODIFIEDENTITYLIST_PK PRIMARY KEY(ID_OID,IDX),CONSTRAINT INSTALLATION_MODIFIEDENTITYLIST_FK1 FOREIGN KEY(ID_OID) REFERENCES INSTALLATION(ID))
CREATE INDEX INSTALLATION_MODIFIEDENTITYLIST_N49 ON INSTALLATION_MODIFIEDENTITYLIST(ID_OID)
CREATE MEMORY TABLE INSTALLATION_ADDEDENTITYLIST(ID_OID VARCHAR(255) NOT NULL,"ELEMENT" LONGVARBINARY,IDX INTEGER NOT NULL,CONSTRAINT INSTALLATION_ADDEDENTITYLIST_PK PRIMARY KEY(ID_OID,IDX),CONSTRAINT INSTALLATION_ADDEDENTITYLIST_FK1 FOREIGN KEY(ID_OID) REFERENCES INSTALLATION(ID))
CREATE INDEX INSTALLATION_ADDEDENTITYLIST_N49 ON INSTALLATION_ADDEDENTITYLIST(ID_OID)
CREATE USER SA PASSWORD ""
GRANT DBA TO SA
SET WRITE_DELAY 20
SET SCHEMA PUBLIC

5. Restart the tomcat process:
bigstart restart tomcat

906737-3 : Error message: 'templates/' is not a directory

Component: Application Security Manager

Symptoms:
Some of the Templates class values are incorrectly initialized with the wrong base directory, so every time specific pages are opened in browser a message is written to var/log/ts/ui/debug.log:

'templates/' is not a directory.

Conditions:
Open Live Update, Policies Lists, Policies Summary, and several other pages under the Security heading.

Impact:
No functional impact, but log entries are added.

Workaround:
None

906653-3 : Server side UDP immediate idle-timeout drops datagrams

Component: Local Traffic Manager

Symptoms:
With immediate idle-timeout, flows may be closed before a datagram is forwarded.

Conditions:
-- Immediate idle-timeout is set on the server context of a UDP virtual server.

Impact:
Datagrams are dropped periodically depending on traffic load.

Workaround:
None.

906505-2 : Display of LCD System Menu cannot be configured via GUI on iSeries platforms

Component: TMOS

Symptoms:
In the BIG-IP Graphical User Interface (TMUI), display of the System Menu on the LCD front panel of most BIG-IP platforms can be enabled or disabled under System :: Configuration :: Device :: General.

However, on iSeries appliances, the 'Display LCD System Menu' option does not appear on this page.

Conditions:
This occurs on the following iSeries appliances:
-- i850
-- i2000-series (i2600/i2800)
-- i4000-series (i4600/i4800)
-- i5000-series (i5600/i5800/i5820-DF)
-- i7000-series (i7600/i7600-D/i7800/i7800-D/i7820-DF)
-- i10000-series (i10600/i10600-D/i10800/i10800-D)
-- i11000-series (i11600/i11800/i11400-DS/i11600-DS/i11800-DS)
-- i15000-series (i15600/i15800)

Impact:
The 'Display LCD System Menu' option cannot be configured via the GUI.

Workaround:
You can enable display of the LCD System Menu using the Command Line (CLI) by running the following commands, in sequence:

tmsh mod sys global-settings lcd-display [enabled|disabled]
tmsh mod sys db lcd.showmenu value [enabled|disabled]

906449-2 : Node, Pool Member, and Monitor Instance timestamps may be updated by config sync/load

Component: TMOS

Symptoms:
The text that describes the monitor state of an LTM node, pool member, or monitor instance also contains a timestamp that initially indicates when the monitor set the affected node or pool member to the indicated state. This timestamp can be affected by other actions, such as incremental or full config sync and config load.

The monitor-state description and timestamp can be viewed in the CLI (CLI/TMSH) and GUI (TMUI) as follows:

-- From the CLI/TMSH:
tmsh show ltm monitor <monitor_type> <monitor_name>

This command shows the state of ltm nodes or pool members currently monitored by the specified ltm health monitor, as in the following example:
-------------------------------------
LTM::Monitor /Common/mysql_test
-------------------------------------
   Destination: 10.10.200.28:3296
   State time: down for 1hr:58mins:42sec
   | Last error: No successful responses received before deadline. @2020.03.25 14:10:24

-- From the GUI:
   + Navigate to Local Traffic :: Nodes : Node List :: <node_name>. The 'Availability' field shows text describing the node's monitored state with a timestamp.

   + Navigate to Local Traffic :: Pools : Pool List :: <pool_name>, under the Members tab, click the pool member name. The 'Availability' field shows text describing the pool member's monitored state with a timestamp.

Conditions:
This may occur under the following conditions:

-- If an incremental config sync occurs from one high availability (HA) member to another member or to the device group:
   + The timestamp on monitor instances for all Nodes or Pool Members (as shown by 'tmsh show ltm monitor <type> <name>') may be updated on HA members receiving the incremental config sync.
   + If a Node or Pool Member has been marked DOWN by a monitor, its timestamp may be updated in the GUI (Node List/Pool-Member list) on HA members receiving the incremental config sync.

-- If a full/forced config sync occurs from one HA member to another member or to the device group:
   + The timestamp on monitor instances for all Nodes or Pool Members (as shown by 'tmsh show ltm monitor <type> <name>') may be updated on HA members receiving the incremental config sync.
   + The timestamp for all Nodes or Pool Members may be updated in the GUI (Node List/Pool-Member list) on HA members receiving the incremental config sync.

-- If a config load occurs:
   + The timestamp on monitor instances for all Nodes or Pool Members (as shown by 'tmsh show ltm monitor <type> <name>') may be updated on the HA member where the config load occurred.
   + The timestamp for all Nodes or Pool Members may be updated in the GUI (Node List/Pool-Member list) on the HA member where the config load occurred.

Impact:
The timestamp indicated next to the monitored-state description for an LTM Node or Pool Member indicates when the Node or Pool Member was updated in ways other than by its configured monitor. Thus, this timestamp may not indicate the actual time of the monitor event suggested by the description text.

Workaround:
None.

905893 : Modification of SmartNIC MTU not supported

Component: TMOS

Symptoms:
During initialization, the SmartNIC driver reports a fixed MTU size. This prevents the MTU from being modified and results in the following error message in /var/log/tmm:

bigip1 notice xnet[00:08.0]: Error: Command 14 failed: 5

Conditions:
This error message is generated each time TMM is started or restarted.

Impact:
Jumbo frames are not supported by SmartNIC.

Workaround:
None.

905881 : MTU assignment to non-existent interface

Component: TMOS

Symptoms:
Warning log message generated to /var/log/ltm

warning mcpd[5494]: 01071859:4: Warning generated : cannot set MTU for eth1. No such device. For legacy VE driver.

Conditions:
Occurs when enabling or disabling VLAN-based Syn Cookies.

Impact:
No known functional impact. This is an incorrectly generated warning message.

Workaround:
None.

905749-1 : imish crash while checking for CLI help string in BGP mode

Component: TMOS

Symptoms:
imish crashes while checking the help strings of '(no) neighbor x.x.x.x fall-over bfd ?' when Border Gateway Protocol (BGP) is configured.

Conditions:
-- Configure BGP.
-- Check for help strings in imish using the '?' (question mark) character.

Impact:
imish crash.

Although imish crashes, BGP functionality is not impacted.

Workaround:
Avoid using '?' while entering the commands.

905669-2 : CSRF token expired message for AJAX calls is displayed incorrectly

Component: Application Security Manager

Symptoms:
CSRF token expired message for AJAX calls is displayed incorrectly in alert message

Conditions:
This can occur if a BIG-IP administrator or user navigates to pages containing AJAX calls that modify a policy when the CSRF token is already expired. This occurs very rarely.

Impact:
Each letter in message is shown in new line in alert message

905477-2 : The sdmd daemon cores during config sync when multiple devices configured for iRules LX

Component: Local Traffic Manager

Symptoms:
The iRules LX workspaces belong on only one device in a Device Service Cluster (DSC). If you have the same iRules LX workspace configured on multiple devices and then perform a config sync operation, the sdmd daemon cores.

Conditions:
-- Multiple devices configured with the same iRules LX workspace in a DSC.
-- Change one of the devices such that the configuration requires a config sync.
-- Perform the config sync.

Impact:
The sdmd daemon cores. Although having multiple devices configured with the same iRules LX workspace is an incorrect configuration, sdmd should not core.

Workaround:
When the iRules LX workspace is correctly configured, i.e., on only one device in a DSC, there is no need to config sync, so this issues does not occur.

904661-3 : Mellanox NIC speeds may be reported incorrectly on Virtual Edition

Component: TMOS

Symptoms:
Speeds for Mellanox NICs on BIG-IP Virtual Edition may be reported incorrectly. The behavior varies depending on what driver is in use:
- Speeds are always reported as 10G when the mlxvf5 driver is used, regardless of the actual speed of the interface.
- Speeds are reported as either 10G or 40G when the xnet driver is used. This is accurate unless the actual NIC speed is greater than 40G, in which is it will still be reported as 40G.

Conditions:
-- BIG-IP Virtual Edition
-- Using a Mellanox NIC with the mlxvf5 or xnet driver

Impact:
Possibly incorrect media speed reported. (Actual speed is correct, regardless of what is displayed.)

904625-2 : Changes to SSL.CertRequest.* DB variables cause high availability (HA) devices go out of sync

Component: Local Traffic Manager

Symptoms:
The GUI saves SSL certificate/CSR subject fields data into SSL.CertRequest.* DB variables to use them in pre-populating subject fields for subsequent modifications.

Conditions:
-- SSL certificate/CSR modification through GUI.
-- Changing the content of the SSL.CertRequest.* DB variables.
-- High availability (HA) configuration.

Impact:
HA devices go out of sync.

Workaround:
SSL.CertRequest.* DB variables are used only as GUI SSL certificate/CSR pre-populated suggestions.

You can still review and modify them before completing SSL certificate/CSR modification operation, so it is safe to sync them onto the high availability (HA) peer.

904537-3 : The csyncd process may keep trying to sync the GeoIP database to a secondary blade

Component: Local Traffic Manager

Symptoms:
The most common symptom is when csyncd repeatedly syncs the GeoIP files and loads the GeoIP database, causing a large number of Clock advanced messages on all tmms.

Repeated log messages similar to the following are reported when a secondary slot logs into the primary slot to load the sys geoip database:

-- info sshd(pam_audit)[17373]: 01070417:6: AUDIT - user root - RAW: sshd(pam_audit): user=root(root) partition=[All] level=Administrator tty=ssh host=x.x.x.x attempts=1 start="Wed Apr 29 13:50:49 2020".
-- notice tmsh[17401]: 01420002:5: AUDIT - pid=17401 user=root folder=/Common module=(tmos)# status=[Command OK] cmd_data=load sys geoip.

Conditions:
-- VIPRION or vCMP guests.
-- Either of the following:
- First installing the GeoIP database if the /shared/GeoIP/v2 directory does not exist.
- When a new blade is installed into a chassis.

Impact:
Repeated logs of Clock advanced messages.

Workaround:
Run the command:
clsh bigstart restart csyncd

904441-2 : APM vs_score for GTM-APM load balancing is not calculated correctly

Component: Access Policy Manager

Symptoms:
Output from the 'show ltm virtual <vs> detail' command reports an incorrect value for the APM Module-Score.

Conditions:
-- Using GTM/DNS and APM.
-- Configure an access profile attached to a virtual server.
-- Configure a non-zero number for 'Max Concurrent Users' for the access profile.
-- Access the virtual server.

Impact:
GTM/DNS load balancing does not work as expected.

Workaround:
None.

904401-1 : Guestagentd core

Component: TMOS

Symptoms:
Guestagentd crashes on a vCMP guest.

Conditions:
This can occur during normal operation in a vCMP environment.

Impact:
Guestagentd crashes on the vCMP guest, and the vCMP host does not have accurate guest information, such as version, provisioning, high availability (HA) status, and tmm status.

Workaround:
None.

904133-1 : Creating a user-defined signature via iControl REST occasionally fails with a 400 response code

Component: Application Security Manager

Symptoms:
Creating user-defined signature via iControl REST occasionally fails with a 400 response code.

Conditions:
You create a user-defined signature via iControl REST via this endpoint:

POST https://<BIG-IP>/mgmt/tm/asm/signatures

Impact:
Signature creation fails with 400 response code:

{
    "code": 400,
    "message": "remoteSender:10.10.10.10, method:POST ",
    "originalRequestBody": "{...}",
    "referer": "10.10.10.10",
    "restOperationId": 6716673,
    "kind": ":resterrorresponse"
}

904041-2 : Ephemeral pool members may be incorrect when modified via various actions

Component: Local Traffic Manager

Symptoms:
Ephemeral pool members may not be in the expected state if the corresponding FQDN template pool member is modified by one of several actions.

For example:

A. Ephemeral pool members may be missing from a pool in a partition other than Common, after reloading the configuration of that partition.

B. Ephemeral pool members may not inherit the 'session' state from the corresponding FQDN template pool member if the FQDN template pool member is disabled (session == user-disabled), the config is synced between high availability (HA) members, and BIG-IP is restarted.

Conditions:
Scenario A may occur when reloading the configuration of non-'Common' partition, e.g.:
-- tmsh -c "cd /testpartition; load sys config current-partition"

Scenario B may occur when an FQDN template pool member is disabled (session == user-disabled), the config is synced between HA members, and BIG-IP is restarted.

Impact:
Impacts may include:
- Missing ephemeral pool members, inability to pass traffic as expected.
- Ephemeral pool members becoming enabled and receiving traffic when expected to be disabled.

Workaround:
For scenario A, reload the entire configuration instead of just the individual partition.

For scenario B, it may be possible to work around this issue by checking the status of ephemeral pool members after BIG-IP restart, and toggling the 'session' value between user-enabled and user-disabled.

903521-2 : TMM fails to sign responses from BIND when BIND has 'dnssec-enable no'

Component: Global Traffic Manager (DNS)

Symptoms:
TMM fails to sign responses from BIND.

Conditions:
BIND has 'dnssec-enable no' in named.conf.

Impact:
TMM fails to sign responses from BIND.

Workaround:
Remove 'dnssec-enable no' from named.conf in options section.

903501-2 : VPN Tunnel establishment fails with some ipv6 address

Component: Access Policy Manager

Symptoms:
VPN Tunnel establishment fails with some ipv6 address

Conditions:
- APM is provisioned.
- Network Access with IPv6 virtual server is configured.

Impact:
VPN Tunnel cannot be established.

Workaround:
1. Disable the DB variable isession.ctrl.apm:
tmsh modify sys db isession.ctrl.apm value disable

2. Perform 'Apply Access Policy' for the access policy attached to the virtual server.

Important: The iSession control channel is needed if optimized apps are configured, so use this workaround only when 'No optimized apps are configured' is set (available in the GUI by navigating to Access :: Connectivity / VPN : Network Access (VPN) : Network Access Lists :: {NA resources} :: 'Optimization' tab).

903265-3 : Single user mode faced sudden reboot

Component: TMOS

Symptoms:
Being logged into the system in single user mode (emergency shell) causes a sudden automatic reboot after some time (~5-to-10 minutes, or longer).

Conditions:
-- Using iSeries platforms.
-- When logged into the emergency shell by appending rd.break to kernel command line.

Impact:
The device reboots after some time. Because of the automatic reboot, you cannot reliably use the emergency shell.

Workaround:
None.

903257-1 : GUI issues for Access :: Profiles/Policies : Customization : General Customization or Advanced Customization

Component: Access Policy Manager

Symptoms:
Error messages when navigating to Access :: Profiles/Policies : Customization : General Customization or Advanced Customization:

Button states incorrect on return from server after button push.

Conditions:
After creation of an Access Profile with Customization Type = modern (which is the default starting with v15.1.0).

Impact:
The GUI for General Customization or Advanced Customization of Access Profiles is not available.

Workaround:
Run the following commands, in sequence, from an SSH session:

cp --preserve=all /var/sam/www/client/customization-source/Common/modern/eps/default_eps.xml /var/sam/www/client/customization-source/Common/modern/eps/default_eps.xml.ORG

sed -e 's|b\&gt\ã|b\>\ã|' /var/sam/www/client/customization-source/Common/modern/eps/default_eps.xml.ORG > /var/sam/www/client/customization-source/Common/modern/eps/default_eps.xml

bigstart restart tomcat

902445-2 : ASM Policy Event Logging stops working after 'No space in shmem' error disconnection mitigation

Component: Application Security Manager

Symptoms:
ASM event logging stops working.

Conditions:
This can occur during normal ASM operation. It occurs after ASM executes 'No space in shmem' error disconnection mitigation, and this error is logged.

Impact:
ASM Policy Event Logging stop working; new event is not saved.

Workaround:
Restart asmlogd and pabnagd:
pkill asmlogd
pkill pabnagd

902377-2 : HTML profile forces re-chunk even though HTML::disable

Component: Local Traffic Manager

Symptoms:
HTML profile performs a re-chunk even though HTML::disable has been executed in the HTTP_RESPONSE event.

Conditions:
Using HTML::disable in an HTTP_RESPONSE event.

Impact:
The HTML profile still performs a re-chunk.

Workaround:
None.

901989-2 : Boot_marker writes to /var/log/btmp

Component: TMOS

Symptoms:
The boot_marker is written to /var/log/btmp, but /var/log/btmp is a binary file.

A message similar to:

Apr 21 09:19:52 bigip1 warning sshd[10901]: pam_lastlog(sshd:session): corruption detected in /var/log/btmp

... may be logged to /var/log/secure.

Conditions:
-- Rebooting a BIG-IP.

Impact:
Since this file is unknowingly corrupt at first boot, any potential investigation needing this data may be compromised.

Workaround:
After bootup you can truncate the file.
$ truncate --size 0 /var/log/btmp

901985-6 : Extend logging for incomplete HTTP requests

Component: TMOS

Symptoms:
Logging is not triggered for incomplete HTTP requests.

Conditions:
- HTTP profile is configured.
- Request-log profile is configured.
- HTTP request is incomplete.

Impact:
Logging is missing for incomplete HTTP requests.

Workaround:
None.

901669-4 : Error status in 'tmsh show cm failover-status', and stale data in some tmstat tables, after management IP address change.

Component: TMOS

Symptoms:
-- The 'tmsh show cm failover-status' command shows a status of 'Error' when the command is run on a peer of a device that underwent a management IP address change.

-- Should the sod_tg_conn_stat or sod_tg_msg_stat tmstat tables be inspected using the tmctl command, the tables show stale information in the entry_key column.

Note: Additionally, in certain cases, it is possible for failover functionality to be broken after the management IP address change, meaning devices remain stuck in an improper Active/Active or Standby/Standby state. This further aspect of the issue is tracked under ID999125. This ID tracks only the cosmetic defect.

Conditions:
-- Two or more devices in a sync-failover device-group.
-- The management IP address is changed on one of the devices.

The error appears under either of these conditions:
-- The 'tmsh show cm failover-status' is run on a peer of the device that underwent the management IP address change.
-- The sod_tg_conn_stat or sod_tg_msg_stat tmstat tables are inspected using the tmctl command.

Impact:
The 'tmsh show cm failover-status' command indicates an error.

Workaround:
You can work around this issue by running the following command on the peers of the device which underwent a management IP address change:

tmsh restart sys service sod

901569-1 : Loopback traffic might get dropped when VLAN filter is enabled for a virtual server.

Component: Local Traffic Manager

Symptoms:
Loopback traffic (local traffic) destined to a virtual server might get dropped when the incoming packet matches a terminating connection flow.

Conditions:
-- VLAN filter is enabled on the virtual server created for loopback traffic processing.
-- An incoming packet matches a terminating connection flow (i.e., the connection flow terminates because of timeout, being dropped by iRule, etc.).

Impact:
Traffic that is matched against a terminating connection flow of a virtual is not processed by the virtual server.

Workaround:
Because this filter is ignored for loopback traffic, removing the 'Enabled On VLAN' filter at the virtual server mitigates the issue.

901529 : AFM Debug Reroute feature not supported

Component: TMOS

Symptoms:
AFM Debug Reroute feature does not work.

Conditions:
Attempting to use the AFM Debug Reroute Feature.

Impact:
Cannot use the AFM Debug Reroute feature.

Workaround:
None.

901485-2 : HTTP_RESPONSE_RELEASE is not raised for HTTP early response

Component: Local Traffic Manager

Symptoms:
When server sends the response early (before the request is completed), client-side HTTP sends the response but does not raise HTTP_RESPONSE_RELEASE.

Conditions:
- HTTP profile is configured.
- Request-log profile is configured.
- HTTP request is incomplete.

Impact:
Timeout occurs and the BIG-IP system sends shutdown.

Workaround:
None

901033-2 : TCP::respond causing memory exhaustion issue when send buffer overwhelmed available TCP window

Component: Local Traffic Manager

Symptoms:
With increasing traffic on a virtual server with an iRule configured to send TCP::respond, iRules operate fine until some threshold is reached, after which memory usage continually increases even though the traffic level remains stable. This memory growth increases until the reaper is activated and connections are removed.

Conditions:
A specific threshold of data is reached. The threshold varies, depending on the memory available on the BIG-IP system.

Impact:
Memory usage continually increases even though the traffic level remains stable. This memory growth increases until the reaper is activated and connections are removed. A tmm core is observed. Traffic disrupted while tmm restarts.

Workaround:
None.

900933-1 : IPsec interoperability problem with ECP PFS

Component: TMOS

Symptoms:
IPsec tunnels fails to remain established after initially working.

On the first ESP Security Associations (SAs) establishment, an IPsec tunnel works. After the expiry of the SAs causes a re-key, the keys are calculated incorrectly by the BIG-IP system. The BIG-IP system sends ESP packets to the remote peer, but the remote peer cannot decrypt the packet. Likewise, the BIG-IP system cannot decrypt packets from the remote peer.

This may also immediately present as a problem when trying to establish a second tunnel to the same peer.

Conditions:
- IPsec IKEv2 tunnel.
- A remote peer that is not another BIG-IP system.
- Elliptic curve groups (ECP) is used for Perfect Forward Secrecy (PFS).

Impact:
Multiple IPsec tunnels to the same remote peer cannot be established concurrently, or tunnels fail after a period of time.

Workaround:
Do not use ECP for PFS.

900825 : WAM image optimization can leak entity reference when demoting to unoptimized image

Component: WebAccelerator

Symptoms:
WAM image optimization can leak entity reference when demoting to unoptimized image.

WAM allows PNG files to be optimized to WEBP and JPG files to be optimized to JPEG XR formats, based on capabilities inferred from the client's User-Agent value. Once the optimized version is in the cache, internal check failures might cause the entity/document to be reverted to the unoptimized version. If this unoptimized version is already present in the cache, a reference to the corresponding entity is leaked, thus causing the entity to be held in memory along with attached resource/document objects and associated storage (UCI).

Conditions:
-- WAM-optimized PNG files (to WEBP) and JPG files (to JPEG XR) on tye system.
-- A policy change occurs that causes an internal check to fail.

Note: This can also occur in some cases without actual changes to the policy if the optimization step is skipped by wamd.

Impact:
WAM image optimization might leak entity reference.

Workaround:
None.

900485-2 : Syslog-ng 'program' filter does not work

Component: TMOS

Symptoms:
The 'program' filter type does not work with the BIG-IP system's version of syslog-ng.

Conditions:
-- Using the 'program' expression in a syslog-ng filter.

Impact:
Unable to filter messages as expected.

Workaround:
None.

899933-2 : Listing property groups in TMSH without specifying properties lists the entire object

Component: TMOS

Symptoms:
When listing a property group, if you do not specify any specific properties within that group, the entire object is listed.

Conditions:
-- Using TMSH to list a property group of an object.
-- Not specifying any properties within the property group.

Impact:
Unexpected output.

Workaround:
None.

899253-6 : [GUI] GTM wideip-pool-manage in GUI fails when tens of thousands of pools exist

Component: Global Traffic Manager (DNS)

Symptoms:
Making changes to wide IP pools through GUI management do not take effect.

Conditions:
-- GTM configuration contains a sufficiently high number of pools (~ 15,000).
-- Using the GUI to assign a pool to a wide IP.

Impact:
Changes do not take effect. Unable to use the GUI to manage which pools are associated with a wide IP.

Workaround:
Use TMSH.

899097-2 : Existence of rewrite profile with HTTP profile response chunking mode 'sustain' always triggers client-side chunking★

Component: TMOS

Symptoms:
When using the rewrite profile, unchunked server responses where content-type is not text/html or text/css also gets converted to chunked encoding in client-side. Also, the server response is missing a message-body (no content-type/content-length).

The client device receives 'Transfer-Encoding: chunked' in the message-header and receives a chunked body if the origin response has a message-body. The client receives a zero-length chunk if the origin response has no message-body.

Prior to BIG-IP version 15, chunking happens only if origin server response has content-type header set to either text/html or text/css.

Conditions:
- HTTP profile response chunking is set to 'sustain'.
- The virtual server has rewrite profile attached.
- Server response has content-type set not to text/html or text/css OR no content-type header.

Impact:
End users may notice a change in chunking behavior after upgrading from prior release.

Workaround:
Use response chunking mode 'unchunk'

899085-6 : Configuration changes made by Certificate Manager role do not trigger saving config

Component: TMOS

Symptoms:
Configuration changes made in the BIG-IP GUI by a user with role 'Certificate Manager' do not result in the configuration being saved.

If the system is rebooted (or MCPD restarted) without saving the configuration, those changes will be lost.

Conditions:
-- User with role 'Certificate Manager'.
-- Changes made in GUI.
-- System rebooted.

Impact:
Loss of configuration changes.

Workaround:
Users with a 'Certificate Manager' role can save the configuration from tmsh:
tmsh save /sys config

Alternately, another user can save the configuration.

898929-4 : Tmm might crash when ASM, AVR, and pool connection queuing are in use

Component: Local Traffic Manager

Symptoms:
TMM crashes and generates a core file.

Conditions:
-- System is provisioned for at least ASM, AVR, and LTM.
-- An LTM pool is configured to use connection queuing.
-- The LTM pool is used on a virtual server with an analytics profile.

Impact:
Tmm might crash. Traffic disrupted while tmm restarts.

Workaround:
Disable connection queuing on the pool.

898825-2 : Attack signatures are enforced on excluded headers under some conditions

Component: Application Security Manager

Symptoms:
Attack signatures are marked as detected when they should be marked as excluded (i.e., a false positive).

Conditions:
-- A 100-continue transaction occurs in HTTP.
-- The internal parameter answer_100_continue is set to a non-default value of 0.

Impact:
False positive enforcement for header signature.

Workaround:
Set the answer_100_continue to 1 (default) on versions later than 15.0.0.

898753-5 : Multicast control-plane traffic requires handling with AFM policies

Component: Local Traffic Manager

Symptoms:
AFM virtual-server specific rules are being matched against control-plane traffic.

Conditions:
-- Broadcast OSPF configured.
-- AFM provisioned.
-- OSPF neighbor configured.

Impact:
OSPF neighborship is not formed.

Workaround:
Add an AFM route-domain policy.

898733-3 : SSL handshakes fail on secondary blades for Thales keys created with fipskey.nethsm after upgrade to 14.1.x and re-import of the keys from HSM

Component: Local Traffic Manager

Symptoms:
SSL handshakes intermittently fail for virtual servers using HSM keys.

In /var/log/ltm you see errors:
err pkcs11d[6575]: 01680002:3: Key table lookup failed. error.

Conditions:
1. Keys were created on earlier versions of BIG-IP software with fipskey.nethsm wrapper, and the device was upgraded to 14.1.0 or later.

2. Keys were created on BIG-IP v14.1.0 or later directly, using fipskey.nethsm wrapper.

3. The platform is a multi-bladed Viprion.

This can occur after applying the workaround for ID758491:
https://cdn.f5.com/product/bugtracker/ID758491.html

Impact:
SSL handshakes that arrive on the secondary blade(s) fail.

Handshakes arriving on the primary blade work fine.

Workaround:
Re-install the Thales client after the upgrade.

898685-4 : Order of ciphers changes after updating cipher group

Component: Local Traffic Manager

Symptoms:
The order of cipher results may change with no modification in the cipher group.

Conditions:
Click 'Update' in a cipher group in the GUI without making any changes.

Impact:
The order of the ciphers changes. During a handshake, SSL/TLS may not be able to select ciphers in the preferred order.

Workaround:
Create a cipher rule with the preferred cipher order and include only a single rule in cipher group allow list.

898577-2 : Executing a command in "mgmt tm" using iControl REST results in tmsh error

Component: TMOS

Symptoms:
When you try to update the frequency of live-update using iControl REST, it results in a java exception being returned instead of updating the value.

Conditions:
When a command for updating the frequency of live updates is executed using iControl REST in an ASM configured BIG-IP.

Impact:
You are unable to update the frequency of live-update via iControl REST.

898389-1 : Traffic is not classified when adding port-list to virtual server from GUI

Component: TMOS

Symptoms:
Traffic is not matching to the virtual server.

Conditions:
Using the GUI to configure traffic-matching-criteria by adding port-list to the virtual server.

Impact:
Traffic loss.

Workaround:
Creating traffic-matching-criteria from the command line

root@(localhost)(cfg-sync Standalone)(Active)(/Common)(tmos)# create ltm traffic-matching-criteria tmc_name_here destination-address-inline <IP ADDR>%10 route-domain <Route domain name>

898333-2 : Unable to collect statistics from BIG-IP system after BIG-IQ restart

Component: Application Visibility and Reporting

Symptoms:
AVR fails to send statistics to BIG-IQ. Lack of stats data in the BIG-IQ console.

Conditions:
-- The BIG-IP system is connected to the Data Collection Device (DCD), BIG-IQ.
-- DCD is restarted.
-- DCD does not send to BIG-IQ configuration instructions via REST interface due to ID 898341.

Impact:
Unable to collect statistics from BIG-IP system. Lack of stats data in the BIG-IQ console.

Workaround:
Restart avrd:
bigstart restart avrd

898201-2 : Fqdn nodes are not getting populated after BIG-IP reboot when DNS server is accessed through a local virtual server.

Component: Local Traffic Manager

Symptoms:
After reboot, no access to services host using fqdn nodes.
-- fqdn nodes are not populated with IP addresses.
-- Unable to access virtual servers served by pools using fqdn nodes.

Conditions:
The issue happens after the BIG-IP is rebooted.
-- when DNS server is accessed through a local virtual server.
-- Single arm cloud BIG-IP with virtual server listening for DNS requests to redirect.

Impact:
-- FQDN DNS requests bypassing the listening virtual server.
-- Unable to access the pools of those configured fqdn nodes.

Workaround:
-- restarting dynconfd.
-- Running a script to trigger off "Tmm ready" and either delete the bad flow(s) or a specific connflow entry.
-- change the dummy dns server to be something in the same subnet as the single interface.

897509-1 : IPsec SAs are missing on HA standby, leading to packet drops after failover

Component: TMOS

Symptoms:
IPsec Security Associations (SAs) are missing on the standby high availability (HA) device.

Conditions:
-- HA mirroring is configured
-- IKEv2 tunnels are started

Impact:
During an HA failover, IPsec tunnels may be disrupted because the newly active device is not aware of some IPsec SAs.

Workaround:
None

897437-5 : First retransmission might happen after syn-rto-base instead of minimum-rto.

Component: Local Traffic Manager

Symptoms:
If a TCP profile is configured with a syn-rto-base value that is lower than minimum-rto, the first retransmission might happen after syn-rto-base.

This behavior is encountered only if the BIG-IP system is unable to compute the new RTO value before the retransmission timer expires, meaning:

-- The BIG-IP system has not received a packet with a TCP timestamp reply.
-- The BIG-IP system has not received an ACK for a timed sequence number.

Conditions:
Configured value of syn-rto-base is lower than minimum-rto.

Impact:
Retransmission might happen sooner than expected.

Workaround:
There are two possible workarounds:

-- Avoid using a syn-rto-base value that is lower than the minimum-rto value (the default values are 3 seconds for syn-rto-base and 1 second for minimum-rto).

-- Consider enabling timestamps to allow faster RTT measurement.

897185-2 : Resolver cache not using random port distribution

Component: Local Traffic Manager

Symptoms:
Outgoing queries to backend dns server use incremented port numbers instead of being distributed random ports.

Conditions:
-- Fix of ID726176 is applied (see https://cdn.f5.com/product/bugtracker/ID726176.html )

Impact:
The port numbers are incremented.

896693-4 : Patch installation is failing for iControl REST endpoint.

Component: TMOS

Symptoms:
iControl REST async endpoint /mgmt/tm/task/util/ihealth behaving inconsistently:

-- A call to VALIDATE the async task is rejected with the error message: 'Operation is not allowed on component /util/ihealth.'
-- The task can be started by calling a different endpoint (e.g., /mgmt/tm/task/cli/script). In this case, the task completes immediately, however, a qkview generating iHealth util is still running. At the end, the qkview is generated.

Conditions:
-- Use iControl REST to create an async task for creating qkview using 'ihealth' with -n option (just generate file, do not upload to iHealth).
-- Try starting the async task by changing the status to VALIDATING.

Impact:
Patch for iControl REST endpoint is not successful. Patch operation is accepted by /mgmt/tm/task/cli/script/ but rejected by /mgmt/tm/task/util/ihealth.

Workaround:
None.

896689-4 : Asynchronous tasks can be managed via unintended endpoints

Component: TMOS

Symptoms:
An asynchronous task created on one endpoint can be started using some other endpoint

Conditions:
Create an asynchronous task e.g. creating qkview using ihealth
using endpoint /mgmt/tm/task/util/ihealth

Gather the task id of the created asynchronous task and send it to a different endpoint e.g. /mgmt/tm/task/cli/script

Impact:
The asynchronous task can be started using this endpoint but this is not intended behavior.

896245-3 : Inconsistency is observed in ARP behavior across releases

Component: Local Traffic Manager

Symptoms:
Creating and deleting VLANs/self IPs might end up with a different number of GARP responses, depending on the BIG-IP software version.

You might notice the differences when comparing older and newer releases, for example, comparing v14.1.0 and earlier compared with versions older than v14.1.0.

Conditions:
This might become evident when you upgrade from an older version.

Impact:
There is no functional impact as a result of this discrepancy.

Workaround:
None.

895845-5 : Implement automatic conflict resolution for gossip-conflicts in REST

Component: TMOS

Symptoms:
The devices in a high availability (HA) environment are out of sync in strange ways; config sync status indicates 'In Sync', but iApps such as SSL Orchestrator are out of sync.

Conditions:
-- high availability (HA) environment with two or more devices.
-- Gossip used for config sync. (Note: Gossip sync is used by BIG-IQ for BIG-IP config sync by iAppLX.)
-- A gossip conflict occurs for some reason.

You can detect gossip conflicts at the following iControl REST endpoint:
/mgmt/shared/gossip-conflicts

You can check gossip sync status at the following iControl REST endpoint:
/mgmt/shared/gossip

Impact:
If there are gossip conflicts, the devices requires manual intervention to get back in sync.

Workaround:
When two devices are out of sync with different generation numbers due to gossip conflict, you can use the following guidance to resolve the conflict:

1. Update devices info to use the same generation number.

2. This info found on REST Storage worker. Storage worker uses the selflink plus a generation number as the key to a given set of data.

3. Add the data from the unit with the highest generation number to the other unit.

4. Must also take care to increase the generation number on the new data to match that of the highest generation

Commands used:
1. Look for GENERATION_MISSING and gossip-conflict objects:
tmsh list mgmt shared gossip-conflicts

2. Get the 'selflink in remoteState' attribute. This self link is same across all devices and checks on the browser with each device to discover the device that is on the highest generation number:
tmsh list mgmt shared gossip-conflicts <OBJECT_ID>

3. Now you know what device contains the most recent version of your data, run this command to get up-to-date data:
restcurl /shared/storage?key=<everything after 'https://localhost/mgmt/' on selflink>

4. Make a post to the out-of-date device that includes the info from the up-to-date device as the post body:
restcurl -X POST /shared/storage -d '{<data from above command>}'

895801-2 : Changing an MRF transport-config's TCP profile does not take effect until TMM is restarted

Component: Service Provider

Symptoms:
After modifying an MRF transport-config to use a different TCP profile, TMM must be restarted for this change to take effect. tmm crash

Conditions:
-- Using MRF with a transport-config.
-- Modifying the transport-config so that it uses a different TCP profile.

Impact:
Expected changes do not take effect until TMM is restarted.

Workaround:
Restart TMM.

Note: Traffic is disrupted while tmm restarts.

895649-2 : Improve TCP analytics goodput reports

Component: Local Traffic Manager

Symptoms:
TCP analytics reports very large goodput values under rare conditions.

Conditions:
-- TCP or FastL4 filter is in use.
-- TCP analytics is enabled.
-- A specific sequence number space is observed during the data transfer.

Impact:
TCP reports a very large goodput value to AVR. This also impacts the average goodput reports as the high value reported shifts the average value to a considerably large one.

Workaround:
None.

895205-2 : A circular reference in rewrite profiles causes MCP to crash

Component: Local Traffic Manager

Symptoms:
MCPD crash when modifying rewrite profile.

Conditions:
-- More than one rewrite profile is configured.
-- At least two rewrite profiles are referencing each other circularly.

Impact:
MCPD crash. For a Device Service Cluster this results in a failover. For a standalone system, this results in an outage.

Workaround:
Do not create circular references with profiles.

895165-2 : Traffic-matching-criteria with "any" protocol overlaps with explicit protocols

Component: Local Traffic Manager

Symptoms:
An error like the example below when defining "any" protocol after previously defining traffic-matching-criteria with explicit protocols.
01b90011:3: Virtual Server /Common/vs-tcp's Traffic Matching Criteria /Common/vs-tcp_IP_VS_TMC_OBJ illegally shares destination address, source address, service port, and ip-protocol with Virtual Server /Common/vs-any destination address, source address, service port.

Conditions:
-- Previously defining traffic-matching-criteria with explicit protocols
-- Afterwards defining virtual server with "any" protocol

Impact:
Cannot define a valid virtual server with "any" protocol

Workaround:
N/A

894133-1 : After ISO upgrade the SSL Orchestrator guided configuration user interface is not available★

Component: TMOS

Symptoms:
After the ISO upgrade, any attempt to access the SSL Orchestrator guided configuration user interface results in the following error:
The requested URL /iapps/f5-iappslx-ssl-orchestrator/sgc/sgcIndex.html was not found on this server.

Conditions:
Upgrade the BIG-IP system.

Impact:
Cannot perform SSL Orchestrator configuration tasks using the SSL Orchestrator guided configuration user interface.

Workaround:
(1) Query the f5-iappslx-ssl-orchestrator package ID (9beb912b-4f1c-3f95-94c3-eb1cbac4ab99), and use the returned ID in the following step.
restcurl shared/iapp/installed-packages | jq -r '.items[] | select(.appName=="f5-iappslx-ssl-orchestrator") | .id'
9beb912b-4f1c-3f95-94c3-eb1cbac4ab99

(2) Delete existing f5-iappslx-ssl-orchestrator package references.
restcurl -X DELETE shared/iapp/global-installed-packages/9beb912b-4f1c-3f95-94c3-eb1cbac4ab99
restcurl -X DELETE shared/iapp/installed-packages/9beb912b-4f1c-3f95-94c3-eb1cbac4ab99

(3) Stop the REST framework daemons.
bigstart stop restjavad restnoded

(4) Make sure the /var/iapps/www/ directory exists.
mkdir -p /var/iapps/www/

(5) Create the RPMS.save directory.
mkdir -p /var/config/rest/iapps/RPMS.save

(6) Check if the current f5-iapplx-ssl-orchestrator RPM (e.g., 14.1.0-5.5.8) is present at the default location.
ls -la /var/config/rest/iapps/RPMS/

-- If it is not present, try to get it from either the /usr/share/packages/f5-iappslx-ssl-orchestrator/ directory or from the remote high availability (HA) peer device (/var/config/rest/iapps/RPMS/). Make sure the RPM version matches the current SSL Orchestrator configuration/version (e.g., 14.1.0-5.5.8). If there is no RPM available (anywhere), you cannot continue with this workaround.

-- If it is present, copy the RPM to /var/config/rest/iapps/RPMS/ (locally).

(7) Copy the current f5-iapplx-ssl-orchestrator (e.g., 14.1.0-5.5.8) RPM to the RPMS.save directory.
cp /var/config/rest/iapps/RPMS/f5-iappslx-ssl-orchestrator-14.1.0-5.5.8.noarch.rpm /var/config/rest/iapps/RPMS.save/

(8) Make sure you have only one f5-iappslx-ssl-orchestrator RPM in the RPMS.save/ directory and that it matches the RPM version. Remove other RPMs, if any.

(9) Remove the current SSL Orchestrator user interface artifacts.
rm -rf /var/iapps/www/f5-iappslx-ssl-orchestrator/
rm -rf /var/config/rest/iapps/f5-iappslx-ssl-orchestrator

(10) Restart the REST framework.
bigstart restart restjavad restnoded

(11) Wait at least 30 seconds.

(12) Open TMUI (the GUI) on the affected device, and navigate to SSL Orchestrator :: Configuration.

(13) The SSL Orchestrator Self-Guided Configuration page should initialize and eventually load successfully.

894081-2 : The Wide IP members view in the WebUI may report the incorrect status for a virtual server.

Component: Global Traffic Manager (DNS)

Symptoms:
A virtual server which is actually down and should show red is reported as up and shows green.

Conditions:
This issue happens when a virtual server is marked down by the system due to inheriting the status of its parent link.

Note: This issue only affects Link Controller systems, and not DNS/GTM systems.

Impact:
The WebUI cannot be used to reliably assess the status of Wide IP members (virtual servers).

Workaround:
Use the tmsh utility in one of the following ways to inspect the status of Wide IP members:

# tmsh show gtm pool a members

# tmsh show gtm server virtual-servers

893905-2 : Wrong redirect from Charts to Requests Log when request status selected in filter

Component: Application Security Manager

Symptoms:
Incorrect filter applied when you are redirected from Charts page to Requests Log.

Conditions:
Select request status in filter in Charts page and apply filter and then click View Requests on the bottom of Charts page.

Impact:
Filter not applied in Requests Log page after redirect.

Workaround:
Filter can be applied manually after redirect.
There is mismatch between AVR request types and ASM request statuses, e.g., Blocked in AVR includes Unblocked as well.

893813-3 : Modifying pool enables address and port translation in TMUI

Component: TMOS

Symptoms:
When modifying the pool for a virtual server, address translation and port translation checkboxes are enabled irrespective of their initial state.

Conditions:
-- Creating a virtual server using the GUI
-- Advanced Configuration is selected
-- Address Translation or Port Translation checkboxes are initially unchecked
-- You modify a pool from this screen

Impact:
Virtual server is created with address and port translation enabled.

Workaround:
You can disable it by again editing the virtual server.

893093-2 : An extraneous SSL CSR file in the /config/big3d or /config/gtm directory can prevent certain sections in the WebUI from showing.

Component: TMOS

Symptoms:
The intended screen does not show when you navigate in the WebUI to either of the following locations:

-- System :: Certificate Management :: Device Certificate Management->Device Trust Certificates

-- DNS :: GSLB :: Servers :: Trusted Server Certificates

The system returns the following error:

An error has occurred while trying to process your request.

Additionally, a Java stack trace is also logged to the /var/log/tomcat/catalina.out file.

Conditions:
An extraneous SSL CSR file is present in the /config/big3d or /config/gtm directory.

-- When the extraneous file is in the /config/big3d directory, the System :: Certificate Management :: Device Certificate Management :: Device Trust Certificates screen is affected.

-- When the extraneous file is in the /config/gtm directory, the DNS :: GSLB :: Servers :: Trusted Server Certificates screen is affected.

Impact:
The WebUI cannot be used to inspect those particular SSL certificate stores.

Workaround:
The /config/big3d and /config/gtm directories are meant to contain only one file each (client.crt and server.crt, respectively).

You can resolve this issue by inspecting those directories and removing any file that may have been accidentally copied to them.

For more information on those directories, refer to: K15664: Overview of BIG-IP device certificates (11.x - 15.x) :: https://support.f5.com/csp/article/K15664.

892861-3 : Cannot configure aaa OAuth provider - invalid x509 file

Component: Access Policy Manager

Symptoms:
An error is encountered when trying to create Ping or Custom type OAuth provider:

General error: 01070712:3: unable to validate certificate, invalid x509 file (/Common/textcert.crt). in statement [SET TRANSACTION END].

Conditions:
-- Access :: Federation : OAuth Client / Resource Server : Provider:: Create
-- Select 'custom' or 'ping' as the type.
-- Attempt a Discover operation to the <provider-hostname> on a server representing a custom- or ping-type provider, and then save the settings.

Impact:
Operation fails. Cannot use Ping or a Custom type OAuth provider.

Workaround:
None

892801-2 : When an Internal Virtual Server is created without an existing 0.0.0.0 virtual address, it will have the state "disabled-by-parent"

Component: Local Traffic Manager

Symptoms:
When an Internal Virtual Server is created without an existing 0.0.0.0 virtual address, it will have the state "disabled-by-parent".

Conditions:
-- An Internal Virtual Server is created without an existing 0.0.0.0 virtual address.

Impact:
The Internal Virtual Server will be considered unavailable and will not process traffic.

Workaround:
Create a 0.0.0.0 virtual address prior to creating the Internal Virtual Server.

892485-2 : A wrong OCSP status cache may be looked up and re-used during SSL handshake.

Component: Local Traffic Manager

Symptoms:
A wrong OCSP status entry in SessionDB is returned during a cache lookup due to using a wrong input parameter - certificate serial number. The result is wrong OCSP status is used in the SSL handshake.

Conditions:
If OCSP object is configured in a clientSSL or serverSSL profile.

Impact:
A wrong OCSP status may be reported in the SSL handshake.

892445-2 : BWC policy names are limited to 128 characters

Component: TMOS

Symptoms:
A 128-character limit for BWC policy object names is enforced and reports an error:

01070088:3: The requested object name <name> is invalid.

Conditions:
Attempting to create a BWC policy object with a name longer than 128 characters.

Impact:
Unable to create BWC policy objects with names that have more than 128 characters.

Workaround:
Use fewer than 128 characters when creating a BWC policy.

892073-3 : TLS1.3 LTM policy rule based on SSL SNI is not triggered

Component: Local Traffic Manager

Symptoms:
A policy rule based on SSL SNI at SSL client hello is not triggered for a TLS1.3 connection.

Conditions:
-- LTM policy rule specifying SSL client hello SNI.
-- TLS1.3 connection.

Impact:
Policy rule not triggered for TLS1.3.

Workaround:
None.

891613-1 : RDP resource with user-defined address cannot be launched from webtop with modern customization

Component: Access Policy Manager

Symptoms:
RDP resource with a user-defined address cannot be launched from the webtop when configured with modern customization.

After requesting the RDP file for a remote address, the RDP file fails to download and the system reports an error message:

Logon failed. Connection to your resource failed. Please click the Try Again button to try again or Close button to close this dialog.

Conditions:
-- Webtop with modern customization.
-- RDP resource with a user-defined address is assigned to the webtop.

Impact:
Cannot use remote desktop resource with user-defined addresses.

Workaround:
As the problem is with modern access policy with modern webtop, a quick workaround:

1. Create a standard access policy with standard webtop (it is similar to modern access policy and modern webtop):

-- 1.1 GUI: Access :: Profiles / Policies :: Create :: {choose Customization Type as 'Standard').
-- 1.2 GUI: Access :: Webtops :: Create :: {choose Customization Type as 'Standard').

Recreate similar access policy as modern access policy that is showing this problem.

If manually re-creating similar standard access policy is not possible, there is no workaround.

891221-2 : Router bgp neighbor password CLI help string is not helpful

Component: TMOS

Symptoms:
Unable to confirm the supported encryption types.

enable or add BGP routing protocol to a route domain
imish >> enable >> conf t >> router bgp 20065004 >> neighbor 1.2.3.4 password ?

b7000.lab[0](config-router)#neighbor 1.1.1.1 password ?
WORD Encryption Type or the password

Conditions:
Configuring the bgp neighbor with encryption password.

Impact:
Unable to confirm the supported encryption types.

Workaround:
None.

891181-2 : Wrong date/time treatment in logs in Turkey/Istambul timezone

Component: Application Security Manager

Symptoms:
There is mismatch between server and GUI timezone treatment for Turkey/Istambul timezone.

Conditions:
User sets Turkey/Istambul timezone on BIG-IP

Impact:
When filtering logs by time period, results differ from set period by an hour

Workaround:
Define time period one hour earlier for filtering ASM logs

891145-5 : TCP PAWS: send an ACK for half-open connections that receive a SYN with an older TSVal

Component: Local Traffic Manager

Symptoms:
SYNs received with TSVal <= TS.Recent are dropped without sending an ACK in FIN-WAIT-2 state.

Conditions:
-- Timestamps are enabled in TCP profile.
-- Local TCP connection is in FIN-WAIT-2 state.
-- Remote TCP connection abandoned the flow.
-- A new TCP connection sends a SYN with TSVal <= TS.Recent to the local connection.

Impact:
The new TCP connection cannot infer the half-open state of Local TCP connections, which prevents faster recovery of half-open connections. The local TCP connection stays around for a longer time.

Workaround:
There are two workarounds:

-- Reduce the Fin Wait 2 timeout (the default: 300 sec) so that TCP connection is terminated sooner.

-- Disable TCP Timestamps.

890881-4 : ARP entry in the FDB table is created on VLAN group when the MAC in the ARP reply differs from Ethernet address

Component: Local Traffic Manager

Symptoms:
Traffic drop occurs.

Conditions:
Source MAC in the ARP header and the Ethernet header do not match.

Impact:
The BIG-IP system drops these packets.

Workaround:
None.

890825-2 : Attack Signatures and Threat Campaigns filter incorrect behaviour

Component: Application Security Manager

Symptoms:
When removing not last selected values in Systems or Tags filter, last one is removed.

Conditions:
Select several values in Systems or Tags filter and then remove not the last value.

Impact:
Filter incorrectly displayed.

Workaround:
None.

890573 : BigDB variable wam.cache.smallobject.threshold may not pickup its value on restart

Component: WebAccelerator

Symptoms:
BIG-IP WAM/AAM provides a faster cache store called small object cache. To get into this cache, an object must have its size below a threshold defined in BigDB variable wam.cache.smallobject.threshold. BIG-IP does not always pickup this value after a restart of TMM.

Conditions:
- WAM/AAM is provisioned;
- A virtual server is configured with a webacceleration profile having a web application.

Impact:
When small object cache has a non-default value, it may incorrectly place an object into Small Object cache (faster cache store) or MetaStor (slower cache store), causing performance impact.

Workaround:
Reset wam.cache.smallobject.threshold value.

890401 : Restore correct handling of small object when conditions to change cache type is satisfied

Component: WebAccelerator

Symptoms:
BIG-IP system software allows you to cache HTTP responses with WAM/AMM web applications. There is a special storage location for small-size objects. If a caching object is about to exceed a threshold limit, the BIG-IP system might change its caching storage to MetaStor. A fix for ID 792045 introduced an issue for instances in which it does not, which resulted in not serving a cached object.

Conditions:
-- WAM/AAM is provisioned.
-- Virtual server has a webacceleration profile with a web application.
-- The BIG-IP software contains a fix for ID 792045.

Impact:
The BIG-IP system resets a connection with an error, a cached object is not served, and the rendering of a client's webpage is not correct.

Workaround:
None.

890169-2 : URLs starting with double slashes might not be loaded when using a Bot Defense Profile.

Component: Application Security Manager

Symptoms:
When a URL starts with double slashes (i.e. "http://HOST//path"), and Bot Defense Profile decides to perform simple redirect, the request results with loading failure.

Conditions:
-- Bot Defense profile on blocking mode (or "Verification and Device-ID Challenges in Transparent Mode" is enabled) is attached to a virtual server.
-- A request is sent to a URL starting with double slash, to a non-qualified URL, during the profile's grace period.

Impact:
Request is not loaded (failure message is seen on browser), and the browser may be identified as a suspicious browser by Bot Defense.

Workaround:
None.

889801-1 : Total Responses in DNS Cache stats does not increment when an iRule suspending command is present under DNS_RESPONSE.

Component: Global Traffic Manager (DNS)

Symptoms:
Upon close inspection of the statistics of a particular DNS Cache, for example by running the command 'tmsh show ltm dns cache resolver <name>', you realize that the 'Total Responses' counter for the cache is not incrementing as much as it should be.

Specifically, by comparing the counter with packet captures or the stats of the DNS Profile, you realize the system is under-reporting 'Total Responses'.

Conditions:
The virtual server using the DNS Cache also uses an iRule which happens to include a suspending command (e.g., 'table') under the DNS_RESPONSE event.

Impact:
The incorrect DNS Cache statistics may confuse or mislead a BIG-IP Administrator.

No traffic impact exists as part of this issue. Responses are still being served from the cache even when the counter says they are not.

Workaround:
None.

889245-3 : Ndal ixvf driver can lock up

Component: Local Traffic Manager

Symptoms:
Under certain circumstances, the TMM ixvf driver for the Virtual Function (VF) of an SRIOV x520 / 82599 card can lock up the tx queue.

Conditions:
Conditions are unknown.

Impact:
No further transmit is possible.

Workaround:
None

888885-1 : BIG-IP Virtual Edition TMM restarts frequently without core

Component: Local Traffic Manager

Symptoms:
The following messages are found in the QKViews:
"bigipA notice MCP bulk connection aborted, retrying"
"bigipA notice Initiating TMM shutdown"

Prior to this, the TMM process logs that it is waiting for its instances to reach different states. For example,
"localhost notice ixlv(1.3)[0:7.0]: Waiting for tmm1 to reach state 1..."

In the /var/log/ltm file, the following message are found sometimes.
"bigip1 crit tmm9[19358]: 01230017:2: Unable to attach to PCI device 00:09.00 for Interface 1.5"

Conditions:
BIG-IP VE with SR-IOV enabled on a Red Hat Enterprise Linux 7.7 which is a part of Red Hat OpenStack Platform 13

Impact:
The TMM process restarts without a core file repeatedly.
Traffic disrupted while tmm restarts.

888869-2 : GUI reports General Database Error when accessing Instances Tab of SSL Certificates

Component: TMOS

Symptoms:
A General Database Error message is shown when you click the Instances tab of a certificate bundle / certificate / Key listed under the System :: Certificate Management : Traffic Certificate Management : SSL Certificate List.

Conditions:
-- The selected SSL Certificate does not have a certificate or key listed under it.
-- You click the instances tab of the properties page of the SSL Certificate.

Impact:
GUI shows an error screen.

Workaround:
Avoid clicking the instance tab if there is no key or certificate associated with the SSL Certificate / Bundle.

888765-1 : After upgrading from 13.1.0 to 15.1.0.1 CGNAT is deprovisioned and tmm is restarted by reloaded config from text files★

Component: TMOS

Symptoms:
After upgrading, CGNAT is de-provisioned and tmm is restarted after config load.

Conditions:
- CGNAT provisioned prior to upgrade
- Upgrade from 13.1.0 to 15.1.0.1 and reboot

Impact:
-- CGNAT is de-provisioned
-- Tmm restarts

Workaround:
After upgrading, re-provision CGNAT:

tmsh modify sys provision cgnat level <level>
tmsh save sys config

888081-4 : BIG-IP VE Migration feature fails for 1NIC

Component: TMOS

Symptoms:
When a saved UCS is attempted to be restored in a new BIG-IP Virtual Edition (VE) in order to migrate the configuration, it fails.

load_config_files[28221]: "/usr/bin/tmsh -n -g -a load sys config partitions all " - failed. -- 01071412:3: Cannot delete IP (x.x.x.x) because it is used by the system config-sync setting.

Conditions:
The UCS load step might fail if the DB variable Provision.1NicAutoconfig is set to disable.

Impact:
The UCS restore fails.

Workaround:
The DB variable can be set to enable before loading the UCS.

# tmsh modify sys db provision.1nicautoconfig value enable

887921-1 : iRule command “RESOLVER::name_lookup” returns null for responses more than 512 bytes

Component: Global Traffic Manager (DNS)

Symptoms:
“RESOLVER::name_lookup” returns null.

Conditions:
Response is larger than 512 bytes.

Impact:
“RESOLVER::name_lookup” returns empty answer.

887681-3 : Tmm SIGSEGV in rrset_array_lock,services/cache/rrset.c

Component: Global Traffic Manager (DNS)

Symptoms:
TMM Cored with SIGSEGV.

Conditions:
N/A.

Impact:
Traffic disrupted while tmm restarts.

887625-3 : Note should be bold back, not red

Component: Application Security Manager

Symptoms:
Under Session Hijacking :: Device Session Hijacking by Device ID Tracking, the note text below the 'enable' checkbox is shown in bold red color

Note : Device-ID mode must be configured in bot profile for this option to work.

Conditions:
This always occurs.

Impact:
The Note does not indicate a hazardous situation (as might be implied by the color), so the text should be black instead of red.

Workaround:
None.

887621-2 : ASM virtual server names configuration CRC collision is possible

Component: Application Security Manager

Symptoms:
A policy add/modify/delete fails with the following error:

-- crit g_server_rpc_handler_async.pl[19406]: 01310027:2: ASM subsystem error (asm_config_server.pl ,F5::ASMConfig::Handler::log_error_and_rollback): Failed on insert to DCC.VS_RAMCACHE (DBD::mysql::db do failed: Duplicate entry '375946375' for key 'PRIMARY').

Conditions:
This can occur when adding a policy. The chance of it occurring increases when there are many virtual servers.

Impact:
Every config update fails.

Workaround:
Figure out which virtual servers have the CRC collision (by looking into DCC.RAMCACHE_VS). Change the name of one of these virtual servers.

You can get the name of the affected virtual server by using the entry reported in the 'Duplicate entry' log, and running this command.

mysql -u root -p$(perl -MPassCrypt -nle 'print PassCrypt::decrypt_password($_)' /var/db/mysqlpw) -e 'SELECT * FROM DCC.VS_RAMCACHE WHERE vs_name_crc = 375946375'

887265-2 : BIG-IP systems may fail to come online after upgrade with ASM and VLAN-failsafe configuration★

Component: Application Security Manager

Symptoms:
When booting to a boot location for the first time, the system does not come on-line.

Conditions:
-- There is a large configuration.
-- VLAN failsafe is configured, and the failsafe-action is something other than failover.
-- The BIG-IP system is an appliance.

Impact:
BIG-IP processes continually restart (VLAN failsafe-action failover-restart-tm), or the BIG-IP system continually reboots (VLAN failsafe-action reboot)

Workaround:
Either disable VLAN failsafe or set the failsafe-action to failover during an upgrade.

887261-1 : JSON schema validation files created from swagger should support "draft-04" only

Component: Application Security Manager

Symptoms:
The JSON schema validation file creation from swagger's schema entry fails and errors are logged to /ts/log/asm_config_server.log.

Conditions:
-- API Protection used in a security policy
-- Swaggers's schema entry contains one or more fields that are incompatible between draft-04 and draft-07 of the JSON schema validation spec (e.g.: "exclusiveMinimum")

Impact:
Since BIG-IP is locked to draft-07, a security policy created from swagger file will not include some entities.

Workaround:
No workaround

887117-2 : Invalid SessionDB messages are sent to Standby

Component: TMOS

Symptoms:
SessionDB messages sent from Active to Standby are dropped due to inconsistencies detected in the message. You see logs in /var/log/ltm:

SessionDB ERROR: received invalid or corrupt HA message; dropped message.

Conditions:
-- High availability (HA) pair configuration.
-- SessionDB messages sent from Active to Standby.

Impact:
Standby drops these messages

Workaround:
None.

887045-1 : The session key does not get mirrored to standby.

Component: Local Traffic Manager

Symptoms:
When a session variable key length is 65 KB, session mirroring fails for that specific key.

Conditions:
-- APM high availability (HA) setup.
-- Access Policy is configured and synced across both devices.
-- A session variable key of ~65 KB arrives

Impact:
The session key does not get mirrored to standby.

Workaround:
None

886865-1 : P3P header is added for all browsers, but required only for Internet Explorer

Component: Application Security Manager

Symptoms:
The Bot Defense profile adds P3P headers to every response when a cookie is set, even if the client browser is something other than Microsoft Internet Explorer.

Conditions:
Bot Defense Profile is attached to a virtual server.

Impact:
Deprecated P3P header is inserted in all responses, even though it is only required for Internet Explorer.

Workaround:
The value of the P3P header is globally configurable in the DB variable dosl7.p3p_header.

It is also possible to set the value to '<null>' and thus prevent the P3P header from appearing, but this may cause legitimate Internet Explorer browsers to be be blocked from accessing the web application.

886841-1 : Allow LDAP Query and HTTP Connector for API Protection policies

Component: Access Policy Manager

Symptoms:
APM has several types of access policies for different deployment types, such as general per-request policies, OAuth policies, full webtop portal policies, and so on. One type of policy is designed for API clients, called API Protection.

API Protection requests are generally authenticated by user information present in an HTTP authorization header. APM then uses this authorization header data to authenticate users against an AAA server.

In addition to authentication, some deployments of API Protection also require authorization decisions to be performed against out-of-band data from external servers, typically group membership data from an external HTTP or LDAP server.

Conditions:
Administrators attempt to use HTTP Connector or LDAP Query in an API Protection type access policy.

Impact:
Administrators are not able to use HTTP Connector or LDAP Query in API Protection policies.

886653-2 : Flow lookup on subsequent packets fail during CMP state change.

Component: Policy Enforcement Manager

Symptoms:
When there is a failover event, there is a chance that some sessions will not move over to new active blade.

Conditions:
-- High availability (HA) environment.
-- A CMP state change occurs.

Impact:
For certain IP addresses that have failed to move to the new active device, a new session create request does not create/replace the current session because it is in inconsistent state.

Workaround:
None.

886649-2 : Connections stall when dynamic BWC policy is changed via GUI and TMSH

Component: TMOS

Symptoms:
Connections stall when dynamic BWC policy is changed via GUI and TMSH.

Conditions:
Issue is seen when you have a dynamic bandwidth control policy configured, and you make a change to the policy via the GUI and TMSH.

Impact:
Connection does not transfer data.

Workaround:
Restart TMM. Delete the relevant configuration, create a new configuration, and apply it.

886145-2 : The 'Reconnect' and 'Reconnect All' buttons do not work if reached via a particular section of the DNS GUI.

Component: Global Traffic Manager (DNS)

Symptoms:
The 'Reconnect' and 'Reconnect All' buttons (introduced in BIG-IP version 14.1.0 to restart some or all iQuery connections) do not work when clicked.

The 'Reconnect' button does not become enabled when a server is selected from the list, and an error is logged in the browser console.

The 'Reconnect All' button is clickable but returns the error when clicked:
No response action specified by the request.

Conditions:
You have accessed the buttons via the following GUI path:

DNS :: GSLB :: Data Centers :: [dc name] > Servers

Impact:
The buttons do not work, making the corresponding feature unavailable from the GUI.

Workaround:
Access the buttons using the following alternative GUI path:

DNS :: GSLB :: Servers

886045-2 : Multi-NIC instances fail to come up when trying to use memory-mapped virtio device

Component: Local Traffic Manager

Symptoms:
Multi-NIC instances fail to come up while using memory-mapped virtio device.

Running the command 'lspci -s <pci-id> -vv' results in the 'region' field reporting 'Memory at xxxxx'.

Conditions:
TMM crashes as soon as the BIG-IP system tries to come up.

Impact:
The BIG-IP system fails to attach to the underlying virtio devices.

Workaround:
Switch to the sock driver by overriding tmm_init.tcl.

For instructions on how to enable the sock driver, see the workaround in K74921042: BIG-IP VE may fail to process traffic after upgrading the VMware ESXi 6.7 host to Update 2 (or later), available at https://support.f5.com/csp/article/K74921042.

885869-2 : Incorrect time used with iQuery SSL certificates utilizing GenericTime instead of UTCTime

Component: Global Traffic Manager (DNS)

Symptoms:
iQuery incorrectly interprets iQuery SSL certificate times when they are using GenericTime instead of UTCTime.

Conditions:
An iQuery certificate using GenericTime instead of UTCTime.

Note that this would only occur with a date beyond the year 2049.

Impact:
Internal years are interpreted to be much later than they should be.

Workaround:
Use SSL certificates with UTCTime instead of GenericTime.

885789-1 : Clicking 'Fix Automatically' on PCI Compliance page does not replace non-PCI-compliant-profile with complaint one on HTTP/2 virtual servers

Component: Application Security Manager

Symptoms:
Clicking the 'Fix Automatically' button in the PCI Compliance page does not replace the insecure client SSL profile attached on an HTTP/2 virtual server, with a secure one. The compliance state shows as a red cross mark, indicating the virtual server to be noncompliant.

Conditions:
-- Clicking the 'Fix Automatically' button on the PCI compliance page.
-- A noncompliant PCI profile is attached to the HTTP/2 virtual server.
-- A PCI-compliant, client SSL profile with renegotiation disabled is available in the SSL profiles.

Impact:
The provision for enhanced configuring does not function as expected for HTTP/2-based virtual servers.

Workaround:
Manually configure a PCI-compliant profile in SSL profiles, with renegotiation disabled, and attach it to the virtual server.

885785-1 : Clicking 'Fix Automatically' in PCI Compliance page does not attach a PCI-compliant-profile on HTTP/2 virtual servers

Component: Application Security Manager

Symptoms:
For an HTTP/2 virtual server with an insecure client SSL profile attached, clicking the 'Fix Automatically' button on the PCI Compliance page creates a PCI-compliant client SSL profile, but fails to attach to the virtual server. The compliance state shows as a red cross mark, indicating the virtual server to be noncompliant.

Conditions:
-- No compliant PCI profile is attached to the HTTP/2 virtual server.
-- Click the 'Fix Automatically' button on the PCI Compliance page.

Impact:
The provision for enhanced configuring does not function as expected for HTTP/2-based virtual servers.

Workaround:
Manually configure a PCI-compliant profile in SSL profiles, with renegotiation disabled, and attach it to the virtual server.

885765-3 : ASMConfig Handler undergoes frequent restarts

Component: Application Security Manager

Symptoms:
Under some settings and load the RPC handler for the tsconfd process restarts frequently.

Conditions:
When processing a large number of configuration updates.

Impact:
The RPC handler for the tsconfd process restarts frequently, causing unnecessary churn and noisy logs

Workaround:
None

885325-2 : Stats might be incorrect for iRules that get executed a large number of times

Component: Local Traffic Manager

Symptoms:
iRules that execute a lot can make stats counters large enough to overflow in a relatively short amount of time (e.g., a couple of months).

Conditions:
Execute an iRule a lot (e.g., make the total number of executions greater than 32 bits) and check its stats.

Impact:
After the total number exceeds 32 bits, the counter stats are no longer valid.

Workaround:
None.

884989-1 : IKE_SA's Not mirrored of on Standby device if it reboots

Component: TMOS

Symptoms:
After rebooting the standby BIG-IP device, IKE SA's are not mirrored.

Conditions:
-- IPSEC is configured in a high availability (HA) environment
-- Standby device is rebooted

Impact:
IKE_SA's will have to be renegotiated.
The performance impact is minimal.

884953-3 : IKEv1 IPsec daemon racoon goes into an endless restart loop

Component: TMOS

Symptoms:
The IKEv1 IPsec daemon racoon goes into an endless restart loop.

2020-01-02 08:36:36: ERROR: /etc/racoon/racoon.conf.BIG-IP:376: "}" duplicated sainfo: loc='ANONYMOUS', rmt='10.42.80.0/24', peer='ANY', id=0
2020-01-02 08:36:36: ERROR: fatal parse failure (1 errors)
2020-01-02 08:36:36: ERROR: failed to parse configuration file.

Conditions:
Duplicate wildcard traffic-selectors, one with ::/0 and one with 0.0.0.0/0, attached to different IPsec policies.

Impact:
IPsec IKEv1 tunnels cannot be established.

Workaround:
Configure duplicate traffic-selectors only when they are attached to interface mode IPsec policies.

884945-2 : Latency reduce in case of empty parameters.

Component: Application Security Manager

Symptoms:
Traffic load with many empty parameters may lead to increased latency.

Conditions:
Sending requests with many empty parameters

Impact:
Traffic load with many empty parameters may cause increased latency through the BIG-IP system.

Workaround:
None

884729-2 : The vCMP CPU usage stats are incorrect

Component: TMOS

Symptoms:
The vCMP CPU usage stats are incorrect when process on a secondary blade has the same PID as that of primary blade's qemu process.

Conditions:
A process on a secondary blade has the same PID as that of primary blade's qemu process.

Impact:
The vCMP CPU usage stats are intermittently incorrect.

Workaround:
None.

884165-3 : Datasync regenerating CAPTCHA table causing frequent syncs of datasync-device DG

Component: TMOS

Symptoms:
Frequent config syncs and spamming of logs are occurring on BIG-IP devices in a high availability (HA) configuration.

Conditions:
Datasync CAPTCHA table is re-generated while CAPTCHA is being consumed by users.

Impact:
Sync to the datasync groups cause the sync status of the devices to fluctuate.

883889-3 : Tmm might crash when under memory pressure

Component: Access Policy Manager

Symptoms:
Tmm might crash and restart when under memory pressure

Conditions:
SSL Orchestrator with service chaining (Security policy uses services).

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

883841-1 : APM now displays icons of all sizes what Horizon VCS supports.

Component: Access Policy Manager

Symptoms:
If the application icon's size is not 32x32, a default icon is displayed on the webtop.

Conditions:
1. Open Horizon VCS
2. Associate a custom icon to the application (size other
than 32x32) and save the changes.
3. Connect to virtual server or Native client

Impact:
A default icon is displayed for the applications which has icons of sizes not supported by APM.

Workaround:
In Horizon VCS, associate the application with an icon that is 32x32.

883149-1 : The fix for ID 439539 can cause mcpd to core.

Component: TMOS

Symptoms:
Mcpd cores during config sync.

Conditions:
This has only been observed once. The device was going from standby to active, and the connection between the BIG-IP peers stalled out.

Impact:
Mcpd cores. Traffic disrupted while mcpd restarts.

Workaround:
NA

883133-2 : TLS_FALLBACK_SCSV with TLS1.3

Component: Local Traffic Manager

Symptoms:
Possible handshake failure with some combinations of TLS Fallback Signaling Cipher Suite Value (SCSV) and SSL profile protocol versions.

Conditions:
-- Using fallback SCSV suites.
-- Using certain client SSL profile protocol versions (e.g., the virtual server is configured for TLS1.3, and the client is configured for TLS1.0 - TLS1.2).

Impact:
Possible handshake failure.

Workaround:
None.

883049-2 : Statsd can deadlock with rrdshim if an rrd file is invalid

Component: Local Traffic Manager

Symptoms:
-- RRD graphs are not updated.
-- System statistics are stale.
-- Commands such as 'tmsh show sys memory' may not complete.
-- qkview does not complete, as it runs "tmsh show sys memory'.

You may see errors:

-- err statsd[5005]: 011b0600:3: Error ''/var/rrd/endpisession' is too small (should be 15923224 bytes)' during rrd_update for rrd file '/var/rrd/endpisession'.
-- err statsd[5005]: 011b0600:3: Error '-1' during rrd_update for rrd file '/var/rrd/endpisession'.

Conditions:
Truncation of a binary file in /var/rrd.

Impact:
Stats are no longer collected. Statsd and rrdshim deadlock.

Workaround:
Remove the truncated file and restart statsd:
bigstart restart statsd

882833-2 : SELinux issue cause zrd down★

Component: TMOS

Symptoms:
After upgrading BIG-IP software, zrd fails to start.

There are errors in /var/log/daemon.log:

err named[19356]: open: /config/named.conf: permission denied

Conditions:
This can occur after upgrading, for example, when upgrading from version 14.1.0.6 to 15.0.1.1.

Impact:
DNS service disrupted as zrd fails to start after reboot.

Workaround:
Run the following command after upgrading:

restorecon -rF /var/named/

882757-1 : sflow_agent crash SIGABRT in the cleanup flow

Component: TMOS

Symptoms:
Disabling DHCP on the management port causes sflow_agent to crash.

Conditions:
This does not always occur, but when it does occur, it crashes when disabling DHCP on the management port.

Impact:
sflow_agent crashes.

Workaround:
Do not disable DHCP on the management port

882729-3 : Applied Blocking Masks discrepancy between local/remote event log

Component: Application Security Manager

Symptoms:
Applied Blocking Masks discrepancy between local/remote event log, ASM logging event logs both locally and remotely to BIG-IQ has discrepancy.

Conditions:
This occurs when "Applied Blocking Masks" logs are emitted on a device where local and remove event logging is configured.

Impact:
This is cosmetic but can lead to confusion.

882725-5 : Mirroring not working properly when default route vlan names not match.

Component: Local Traffic Manager

Symptoms:
When using two BIG-IP systems to mirror traffic, mirroring functions correctly if the default gateway VLAN names match; however, if default gateway VLAN names don't match, then the BIG-IP system does not mirror client-side packets to the peer, which causes the standby BIG-IP system to reset all client-side flows on failover.

Conditions:
-- Two BIG-IP LTM BIG-IP Virtual Edition (VE) systems configured as a high availability (HA) pair.
-- Default gateway VLAN names don't match between them.

Impact:
BIG-IP system does not mirror client-side packets to the peer, which causes the next-active device to reset all client-side flows on failover.

Upon failover all flows are being RST just like a typical failover scenario without mirroring implemented.

Workaround:
Use same VLAN name on all external VLANs that might be used for mirroring.

882709-4 : Traffic does not pass on tagged VLANs on VE configured on Hyper-V hypervisors★

Component: TMOS

Symptoms:
Traffic does not pass on tagged VLANs when a BIG-IP Virtual Edition (VE) is deployed on a Hyper-V hypervisor.

This may manifest as traffic failing after an upgrade from earlier (unaffected) software versions.

Note: This functionality worked as expected in v13.x and earlier, and if the same VE is downgraded to v13.x, VLAN tagging functionality is restored.

This is due to an interoperability issue between RedHat Enterprise Linux (RHEL) and Microsoft Hyper-V, which seems to affect RHEL v7.3 and RHEL v7.5.

Hyper-V on Windows Server 2016 and Windows Server 2012 do not seem to identify the version of the built-in LIS correctly on Centos 7.3 or Centos 7.5 (which are built on RHEL 7.3 and RHEL 7.5 respectively).

Although there is a statement of support by Microsoft for VLAN tagging on RHEL 7.3 and 7.5 when running on Hyper-V, that functionality does not appear to work at present: Supported CentOS and Red Hat Enterprise Linux virtual machines on Hyper-V :: https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/Supported-CentOS-and-Red-Hat-Enterprise-Linux-virtual-machines-on-Hyper-V.

Conditions:
-- BIG-IP VE is deployed on a Hyper-V hypervisor.
-- VLAN configured in BIG-IP VE with tagged interfaces, e.g.:

    net vlan external {
        interfaces {
            1.1 {
                tagged
            }
        }
        tag 4000
    }

-- At present, VLAN tagging on the v14.x and v15.x releases does not work because those releases are running on CentOS 7.3 and 7.5 respectively, which both are affected by the MS/RHEL interoperability issue.

-- BIG-IP v12.x and v13.x use a different (older) CentOS version, so VLAN tagging works without issue on those releases.

Impact:
-- The system does not prevent you from configuring tagged VLANs, even though they do not pass traffic.

-- Although upgrades complete and you can reboot into the new boot location (or you can set up on Hyper-V from scratch), traffic does not pass (into the guest) across VLANs that are tagged.

Important: If using tagged VLANs on VE setups on Hyper-V is critical to your configuration, you might want to elect to postpone upgrading from a working, v12.x and v13.x release.

Workaround:
Essentially, there is no workaround in this release; you must reconfigure the virtual machine to use separate, untagged interfaces for each VLAN.

Note: Although this is technically a problem between Hyper-V and the built-in LIS on RHEL 7.3/7.5, this issue is being tracked internally in this bug.

882609-1 : ConfigSync status remains 'Disconnected' after setting ConfigSync IP to 'none' and back

Component: TMOS

Symptoms:
After setting a device's ConfigSync IP to 'none' and then back to an actual IP address, the device remains in a disconnected state, and cannot establish ConfigSync connections to other BIG-IP systems in its trust domain.

MCPD periodically logs messages in /var/log/ltm:
err mcpd[27610]: 0107142f:3: Can't connect to CMI peer a.b.c.d, TMM outbound listener not yet created.

Conditions:
--- BIG-IP system is in a trust domain with other BIG-IP systems.
--- Local device's ConfigSync IP is set to 'none', and then back to an actual IP address.

Impact:
Devices unable to ConfigSync.

Workaround:
This workaround will disrupt traffic while TMM restarts:

1. Ensure the local ConfigSync IP is set to an IP address.
2. Restart TMM:
bigstart restart tmm

This workaround should not disrupt traffic:

Copy and paste the following command into the Advanced Shell (bash) on a BIG-IP system, and then run it. This sets the ConfigSync IP for all device objects to 'none', and then back to their correct values.

TMPFILE=$(mktemp -p /var/tmp/ ID882609.XXXXXXX); tmsh -q list cm device configsync-ip > "$TMPFILE"; sed 's/configsync-ip .*$/configsync-ip none/g' "$TMPFILE" > "$TMPFILE.none"; tmsh load sys config merge file "$TMPFILE.none"; echo "reverting back to current"; tmsh load sys config merge file "$TMPFILE"

882545-1 : Multiple rate-limiting agents sharing the same rate-limiting key config may not function properly

Component: Access Policy Manager

Symptoms:
When multiple rate-limiting agents share the same rate-limiting key config, removing one agent may cause other agents to not function properly. In case of using tmm.debug, it may generate a core.

Conditions:
-- Multiple rate-limiting agents sharing the same rate-limiting key config.
-- Removing one agent.

Impact:
Tmm restarts. Traffic disrupted while tmm restarts.

Workaround:
Do not share the same rate-limiting key config among multiple agents.

882377-3 : ASM Application Security Editor Role User can update/install ASU

Component: Application Security Manager

Symptoms:
Live Update modifications are allowed for Application Security Editor Role.

Conditions:
Login as Application Security Editor user and try to install ASU.

Impact:
Application Security Editor Role role is permitted to update Attack Signatures when it shouldn't be.

881985-4 : AFM FQDN rule matching is broken when multiple FQDN's in firewall policies resolve to the same IP address

Component: Advanced Firewall Manager

Symptoms:
AFM FQDN rule matching is broken when multiple FQDN's in firewall policies resolve to the same IP address

Conditions:
-- A firewall policy contains multiple rules
-- Two or more rules point to different fully qualified domain names (FQDNs).
-- Both FQDNs resolve to the same IP address

Impact:
Firewall rule action won't be correctly applied to traffic, causing some traffic to be processed incorrectly by BIG-IP.

Workaround:
Configure FQDN's in such way that no two FQDN's will resolve to the same IP address. If you need to use multiple FQDNs with the same IP address in a policy, configure one as FQDN and the other as a resolved IP address.

881085-3 : Intermittent auth failures with remote LDAP auth for BIG-IP managment

Component: TMOS

Symptoms:
There are intermittent auth failures when accessing the BIG-IP administration interfaces via SSH or the GUI.

Conditions:
-- Remote LDAP auth is configured.
-- An idle timeout RST is received on the LDAP connection before the configured auth LDAP idle-timeout expires. This RST might be generated by tmm (if the connection to the LDAP server is via a defined VLAN), some other intervening device on the network, or from the LDAP server itself (depending on its connection time limit).

Impact:
There might be intermittent remote-auth failures.

Workaround:
Set the auth ldap idle-timeout to a smaller value, for example, via tmsh:
modify auth ldap system-auth idle-timeout 299

881065-1 : Adding port-list to Virtual Server changes the route domain to 0

Component: Local Traffic Manager

Symptoms:
When attaching the port-list to virtual server dest:port-list, the route domain of the virtual server is changed to the default value of 0, and the port-list is not correctly applied. This is encountered in the GUI but not in the CLI.

Conditions:
Using port-list along with virtual server in non default route domain using the GUI.

Impact:
You are unable to use the GUI to attach a port-list that uses a non-default route domain to a virtual server.

Workaround:
Use tmsh to attach a port-list to a virtual server if the port-list uses a non-default route domain.

881041-3 : BIG-IP system may forward IP broadcast packets back to the incoming VLAN interface via a forwarding virtual server.

Component: Local Traffic Manager

Symptoms:
Some received packets are retransmitted back on the incoming VLAN interface.

Conditions:
The symptom is found with the following conditions:
1. A forwarding virtual server is configured.
2. A packet is received whose destination MAC address is its unicast VLAN MAC address and the destination IP address is the broadcast address of that subnet.

Impact:
Broadcast packets are forwarded back to the incoming VLAN interface might result in loops if there are multiple gateways on the network.

Workaround:
None.

880697-1 : URI::query command returning fragment part, instead of query part

Component: Local Traffic Manager

Symptoms:
The iRule URI commands are designed to parse a given URI string to each components such as scheme (URI::protocol) or authority (URI::host). The URI::query command is designed to return the query part of an URI, but the returned string contains the fragment part. For example, for the URI "foo://example.com:8042/over/there?name=ferret#nose" (an example from Section 3, RFC 3986), URI::query returns "name=ferret#nose". The "#nose" part should not be present in the return value

Conditions:
Create a test rule with URI having '#' like this.

when HTTP_REQUEST {
  # from RFC 3986 Section 3
  set url "foo://example.com:8042/over/there?name=ferret#nose"
  log local0. "query: [URI::query $url]"
}

Impact:
URI operations that involve #fragments may fail.

Workaround:
NA

880689-2 : Update oprofile tools for compatibility with current architecture

Component: TMOS

Symptoms:
Current operf as shipped with BIG-IP is out of date and will not work.

Per the oprofile page (https://oprofile.sourceforge.io/news/) the version included in our systems (0.9.9) was released in 2013.

Conditions:
Opcontrol still works but operf will not load.
# operf --version
use the opcontrol command instead of operf.

Impact:
Outdated operf means that it cannot be used for troubleshooting purposes.

880565-1 : Audit Log: "cmd_data=list cm device recursive" is been generated continuously

Component: Device Management

Symptoms:
The system generates and logs the following message continuously, at the rate of 3 times a minute, in /var/log/audit:

-- bigip1 notice tmsh[47755]: 01420002:5: AUDIT - pid=47755 user=root folder=/ module=(tmos)# status=[Command OK] cmd_data=cd / ;
-- bigip1 notice tmsh[47755]: 01420002:5: AUDIT - pid=47755 user=root folder=/ module=(tmos)# status=[Command OK] cmd_data=list cm

Conditions:
This occurs during normal operation.

Impact:
Audit log file contains numerous 'cmd_data=list cm device recursive' messages.

Workaround:
-- To suppress all messages, do the following:

1. Edit the 'include' section of syslog configuration to suppress audit logs of 'cmd_data=cd /' and 'cmd_data=list cm device recursive':

# tmsh edit /sys syslog all-properties

2. Replace 'include none' with following syntax:
===
sys syslog {
- snip -
    include "
filter f_audit {
       facility(local0) and match(AUDIT) and not match(\"cmd_data=list cm device recursive|cmd_data=cd /\");
};"
- snip -
}

-- To filter the messages sent to existing remote syslog servers, do the following:

1. Set sys syslog remote-servers none:
# tmsh modify sys syslog remote-servers none

2. Define the remote syslog server in the 'sys syslog include' statement.

3. Add the following filter:

   filter f_remote_server {
   not (facility(local0) and message(\"AUDIT\") and match(\"cmd_data=list cm device recursive|cmd_data=cd /\"));
    };

Result: The system sends all messages to the remote syslog server, excluding the messages that match the filter.

Here is a sample filter, with sample data:

sys syslog {
    include "
    filter f_remote_server {
    not (facility(local0) and message(\"AUDIT\") anD match(\"cmd_data=list cm device recursive|cmd_data=cd /\"));
    };
    destination d_remote_loghost {
        udp(\"10.0.0.1\" port(514));
    };
    log {
        source(s_syslog_pipe);
        filter(f_remote_server);
        destination(d_remote_loghost);
    };
    "
}

880473-1 : Under certain conditions, the virtio driver may core during shutdown

Component: TMOS

Symptoms:
If the virtio driver fails to initialize, it may core during shutdown.

Conditions:
-- Using the virtio VE driver.
-- The virtio driver fails initialization and shuts down instead.

Impact:
TMM cores during driver shutdown.

880125-5 : WideIP (A) created together with aliases (CNAME) causes missing A records in ZoneRunner

Component: Global Traffic Manager (DNS)

Symptoms:
Creating WideIP with aliases at the same time causes ZoneRunner to create CNAME RRset without matching A RRset on the peer.

Conditions:
Creating WideIP with aliases at the same time(using GUI or tmsh) causes ZoneRunner to create CNAME RRset without matching A RRset on the peer.

Impact:
GTM peer will not respond with correct answer for DNS request.

Workaround:
Create wideip with two steps.

880073-1 : Memory leak on every DNS query made for "HTTP Connector" agent

Component: Access Policy Manager

Symptoms:
'plugin' subsystem of TMM leaks memory, when "HTTP Connector" agent performs DNS query.

Conditions:
Access Policy contains "HTTP Connector" agent.

Impact:
Roughly 500 KB is leaked for every 10000 requests.

Workaround:
None.

880013-1 : Config load fails after changing the BIG-IP Master key which has an encrypted key in it's configuration

Component: TMOS

Symptoms:
Config load fails with an error:

01071769:3: Decryption of the field (privatekey) for object (12004) failed.
Unexpected Error: Loading configuration process failed.

Conditions:
-- BIG-IP configuration has a secured attribute, for example an encrypted dynad key
-- The master key password is changed
-- The configuration is loaded before saving the changes

Impact:
"tmsh load sys config" fails.

Workaround:
After modifying the master key password, save the configuration and then perform the tmsh load sys configuration.

880009-1 : Tcpdump does not export the TLS1.3 early secret

Component: TMOS

Symptoms:
Users running tcpdump with the 'ssl:v' flag to obtain the early traffic secret are given the early master secret instead.

Conditions:
Run tcpdump with the 'ssl:v' flag.

Impact:
Users cannot decrypt TLS1.3 early data packets.

Workaround:
None.

879969-5 : FQDN node resolution fails if DNS response latency >5 seconds

Component: TMOS

Symptoms:
When resolving FQDN names for FQDN nodes/pool members, pending DNS requests are timed out after 5 seconds with no response from the DNS server.
If there is a persistent latency of 5 seconds or greater in the DNS server responses, FQDN name resolution will fail and ephemeral nodes/pool members will not be created.

Conditions:
- BIG-IP using FQDN nodes/pool members
- Persistent latency of 5 seconds or greater in the DNS server responses

Impact:
Ephemeral pool members may not be created, thus no traffic will be sent to the intended pool members.

Workaround:
Resolve any persistent latency issues that might cause delays of 5 seconds or more in DNS server responses.

879841-4 : Domain cookie same-site option is missing the "None" as value in GUI and rest

Component: Application Security Manager

Symptoms:
There isn't an option to add to a domain cookie with the attribute "SameSite=None". The value "None" which appears as an option is used will not add the attribute at all.

Conditions:
You want to have SameSite=none attribute added to a domain cookie.

Impact:
You are unable to set SameSite=None

Workaround:
Set the SameSite=None cookie value in the application. An iRule could also be added that inserts the cookie. For more information on the iRule, see the following DevCentral article: https://devcentral.f5.com/s/articles/iRule-to-set-SameSite-for-compatible-clients-and-remove-it-for-incompatible-clients-LTM-ASM-APM

879301-1 : When importing a BIND zone file, SRV/DNAME/NAPTR RRs do not have correct $ORIGIN appended

Component: Global Traffic Manager (DNS)

Symptoms:
When importing a BIND zone file, $ORIGIN is appended for rdata from SRV and NAPTR RRs, also not appended for DNAME's owner label.

Conditions:
$ORIGIN is used in original zone files and use zone runner to import.

Impact:
Zone files are not generated correctly.

Workaround:
Do not use $ORIGIN.

879001-1 : LDAP data is not updated consistently which might affect authentication.

Component: TMOS

Symptoms:
Change not updated in LDAP when the system auth source ('systemauth.source' DB key/'Auth Source Type') is set to Active Directory.

This change is not applied when the setting is modified (e.g., from local or LDAP to Active Directory, or from Active Directory to LDAP). Instead, the change is applied only when MCPD is rewriting the file for other reasons.

Conditions:
Changing the 'systemauth.source' DB key/'Auth Source Type':
-- From local to Active Directory.
-- From LDAP to Active Directory.
-- From Active Directory to LDAP.

Impact:
LDAP data is not updated consistently, and authentication might fail.

Workaround:
None.

878253-1 : LB::down no longer sends an immediate monitor probe

Component: Local Traffic Manager

Symptoms:
The iRule command LB::down is supposed to send an immediate monitor probe, but it does not.

Conditions:
-- Executing LB::down in an iRule.

Impact:
A monitor probe is not immediately sent, which may cause a pool member to be marked down longer than it should be.

876965-2 : Incorrect reporting by /mgmt/tm/live-update/

Component: Application Security Manager

Symptoms:
The iControl REST endpoint /mgmt/tm/live-update/ reports 'true' for isUpdateAvailable when it should report 'false'.

Conditions:
Checking for live update availability using the iControl REST endpoint /mgmt/tm/live-update/.

Impact:
Erroneous reporting of live update availability: reports 'true'; should report 'false'. For example, the message might report that three modules have updates when only one module does.

Workaround:
None.

876809-3 : GUI cannot delete a cert with a name that starts with * and ends with .crt

Component: TMOS

Symptoms:
If a cert is created with a name that begins with * (asterisk) and ending with .crt, you cannot delete it using the GUI.

Conditions:
-- Certificate with a name similar to *example.crt.

-- Select the checkbox in the GUI and click Delete.

Impact:
GUI displays the message: No records to display. The '*example' certificate is still present.

Workaround:
You can use TMSH to delete it without issue.

876677-1 : When running a debug version of TMM, an assertion may be triggered due to and expired DNS lookup

Component: Global Traffic Manager (DNS)

Symptoms:
When running a debug TMM, if a DNS lookup takes more than 30 seconds, TMM may assert with a message similar to the following in the /var/log/ltm file:

-- notice panic: ../modules/hudfilter/3dns/cache_resolver.c:2343: Assertion "standalone refcnt must be one" failed.

Conditions:
-- Using the debug TMM.
-- Executing a DNS lookup that expires.

Impact:
TMM crash and (in a high availability (HA) configuration) failover.

Workaround:
Do not use the debug TMM.

876569-3 : QAT compression codec produces gzip stream with CRC error

Component: Local Traffic Manager

Symptoms:
When an HTTP compression profile is enabled on BIG-IP platforms with Intel QuickAssist Technology (Intel QAT) compression accelerators, gzip errors are produced.

Conditions:
This occurs when the following conditions are met:

-- The following platforms with Intel QAT are affected:
   + 4450 blades
   + i4600/i4800
   + i10600/i10800
   + i7600/i7800
   + i5600/i5800
   + i11600/i11800
   + i11400/i11600/i11800
   + i15600/i15800

-- The compression.qat.dispatchsize variable is set to any of the following values:
   + 65535
   + 32768
   + 16384
   + 8192

-- The size of the file being compressed is a multiple of the compression.qat.dispatchsize value, for exampld:

   + 65355*32768
   + 8192*32768

Impact:
Clients cannot decompress the compressed file because there is an invalid gzip footer.

Workaround:
Disable hardware compression and use software compression.

876145-3 : Nitrox5 failure on vCMP guest results in all crypto requests failing.

Component: Local Traffic Manager

Symptoms:
Nitrox5 SSL card failure on a vCMP guest deployed on i11000 platform might cause all SSL transactions to fail.

Conditions:
- i11000 platform.
- vCMP guest.
- Nitrox5 card experiences a failure.

Impact:
- SSL transactions do not complete the handshake.
- Following logs can be seen in /var/log/ltm :

01260013:4 SSL Handshake failed for TCP 10.1.1.5:55368 -> 10.1.1.55:443
01260009:4: 10.2.36.5:55384 -> 10.1.1.1:443: Connection error: ssl_hs_vfy_vfydata_cont:14608: alert(47) verify failed

875373-3 : Unable to add domain with leading '.' through webUI, but works with tmsh.

Component: Application Security Manager

Symptoms:
It is possible to create certain domain matches with leading dot '.' in tmsh, but not in the GUI.

Conditions:
Advanced WAF bot signature configuration with domain with a leading . character.

Impact:
You are unable to use the GUI to create custom bot-defense signatures.

Workaround:
Use tmsh to add custom bot-defense signatures as follows:

tmsh create security bot-defense signature ockerdocker category Crawler domains add {.ockerdocker} rule "headercontent:\"Google_Analytics_Snippet_Validator\"; useragentonly; nocase;"

874877-1 : Bigd http monitor shows misleading 'down' reason when recv does not match

Component: Local Traffic Manager

Symptoms:
When a recv string is used with an http monitor, the http status code is collected and in the event of failure, the most recent value (from before the failure) is retrieved and used as part of the log output. This can result in a message that is misleading.

Conditions:
Configure a BIG-IP to monitor an HTTP server.

Impact:
Misleading log messages, difficulty in identifying the real cause of the monitor failure.

874797-1 : Cannot use GUI to configure FQDN in device DNS NXDOMAIN QUERY Vector

Component: Advanced Firewall Manager

Symptoms:
The GUI for device vector is missing functionality to check, add, and delete FQDNs.

Conditions:
This is encountered in the GUI in the DNS tab while viewing the DNS NXDOMAIN Query vector.

Impact:
You are unable to configure a valid FQDN list.

Workaround:
Use TMSH to configure a valid FQDN list.

874317-1 : Client-side asymmetric routing could lead to SYN and SYN-ACK on different VLAN

Component: Local Traffic Manager

Symptoms:
When BIG-IP is configured with at least two VLANs/interfaces, and a virtual server with auto-lasthop disabled, then when that virtual server receives a SYN from a client and sends the SYN/ACK directly back to the client on a different VLAN/interface, it currently expects the ACK to be received on the outgoing interface unless the client is not directly connected and the connection is using a default gateway.

Conditions:
-- The BIG-IP is configured with two VLANs/interfaces for a client (one for incoming packets, one for outgoing packets, i.e. asymmetric routing).
-- The client using asymmetric routing is connecting to a virtual server with auto-lasthop disabled.
-- The outgoing route to the client (from the BIG-IP) is directly connected to the client (i.e. on the same network; not going through a gateway).
-- The DB variable connection.vlankeyed has the value "enabled" (which is the default).

Impact:
The mismatch could lead to connections failing to establish.

Workaround:
Use only a single VLAN on the client side, or disable the DB variable "connection.vlankeyed".

874221-1 : DNS response recursion desired (rd) flag does not match DNS query when using iRule command DNS::header rd

Component: Global Traffic Manager (DNS)

Symptoms:
DNS response recursion desired (rd) flag does not match the DNS query when using the iRule command DNS::header rd.

Conditions:
-- iRule command DNS::header rd is used to set DNS query rd bit to a different value.
-- At least one wide IP is configured.

Impact:
DNS response rd flag does not match the DNS query. This is not RFC compliant.

Workaround:
Do not configure any wide IPs.

873677-7 : LTM policy matching does not work as expected

Component: Local Traffic Manager

Symptoms:
Policy matching may fail to work as expected

Conditions:
Having many conditions with the same operand may trigger an issue where the wrong transition is taken.

This may also be triggered by very complex policies with large numbers of rules.

Impact:
LTM policy matching does not work as expected.

Workaround:
None.

873641-1 : Re-offloading of TCP flows to hardware does not work

Component: TMOS

Symptoms:
Once Hardware evicts the EPVA TCP flows due to Idle timeout, tmm does not reinsert the flows back when it receives a packet belonging to that flow.

Conditions:
This occurs when the TCP connection is kept idle for ~20 seconds.

Impact:
Performance can be impacted. Hardware acceleration will be disabled for the flows once the flow is removed from hardware due to Idle timeout.

873249-1 : Switching from fast_merge to slow_merge can result in incorrect tmm stats

Component: Local Traffic Manager

Symptoms:
TMM stats are reported incorrectly. For example, the system may report double the number of running TMMs or an incorrect amount of available memory.

Conditions:
Changing the DB key merged.method from fast_merge to slow_merge.

Impact:
Incorrect reporting for TMM stats.

Workaround:
Remove the file /var/tmstat/cluster/blade0-performance.

These files are roll-ups and will be re-created as necessary.

872981-1 : MCP crashes when deleting a virtual server and its traffic-matching-criteria in the same transaction

Component: Local Traffic Manager

Symptoms:
MCPD crashes when deleting a virtual server and traffic-matching-criteria in the same transaction. This can happen when explicitly using a transaction, or when using a feature that uses transactions, such as when deleting an iApp instance that created these objects.

Conditions:
-- Using a virtual server that has traffic-matching-criteria (e.g., port lists or address lists) attached.
-- Deleting the virtual server and its traffic-matching-criteria in the same transaction.

Impact:
MCP cores, which causes a failover (in a high availability (HA) system) or temporary outage.

Workaround:
Delete the traffic-matching-criteria object separately from the virtual server.

872721-3 : SSL connection mirroring intermittent failure with TLS1.3

Component: Local Traffic Manager

Symptoms:
Intermittent failure of standby connection mirroring TLS1.3 handshake.

Conditions:
TLS1.3 and connection mirroring. More easily reproduces with ecdsa signature.

Impact:
Standby device fails tls handshake, active success so connection succeeds but not mirrored.

872685-1 : Some HTTP/3 streams terminate early

Component: Local Traffic Manager

Symptoms:
Some HTTP/3 streams are terminated with a FIN before all the requested data is delivered.

Conditions:
-- Send multiple HTTP3 requests on different streams simultaneously.
-- The back-end in server is NGINX.

Note: This might happen with other web servers as well.

Impact:
Data transfer is incomplete.

Workaround:
Update the server-side connection to HTTP/2.

872165-2 : LDAP remote authentication for REST API calls may fail during authorization

Component: TMOS

Symptoms:
LDAP (or Active Directory) remote authentication fails during authorization for REST API calls.

Clients receive 401 Unauthorized messages and /var/log/restjavad.x.log may report messages similar to the following:

-- [I][1978][26 Mar 2021 13:23:36 UTC][8100/shared/authn/login AuthnWorker] User remoteuser failed to login from 192.0.2.1 using the tmos authentication provider

-- [WARNING][807][26 Mar 2021 14:43:24 UTC][RestOperationIdentifier] Failed to validate Authentication failed.

Conditions:
LDAP (or Active Directory) remote authentication configured with a User Template instead of a Bind Account.

Impact:
Unable to authenticate as remote-user for access that uses authorization, like REST API calls.

Workaround:
You can use either of the following workarounds:

-- Configure LDAP/AD remote authentication to utilize a Bind account instead of the User Template.
-- Create a local user account for each remote user, allowing local authorization (authentication remains remote).

872105 : APM Hosted Content feature incorrectly guesses content type for CSS files

Component: Access Policy Manager

Symptoms:
APM has a hosted content feature where files can be uploaded for serving out to end users. This is typically used for Edge Client hosting, CSS, and Images.

When you upload a CSS file with Hosted Content enabled, BIG-IP classifies it as 'text/x-asm' when it should be 'text/css'.

Conditions:
APM Hosted Content feature serving CSS files.

Impact:
Incorrect content type used for CSS may confuse some web clients.

Workaround:
To work around this issue, use the Hosted Content GUI to change the file type from 'text/x-asm' to 'text/css'.

872037-2 : DNS::header rd does not set the Recursion desired

Component: Global Traffic Manager (DNS)

Symptoms:
iRule command DNS::header rd not working as expected.

Conditions:
Virtual server configured with an iRule command to set DNS::header rd.

Impact:
The DNS::header rd iRule command does not set the Recursion Desired flag in DNS headers.

Workaround:
None.

871881-2 : Apply Policy action is not synchronized after making bulk signature changes

Component: Application Security Manager

Symptoms:
After an action that affects thousands of objects, a subsequent Apply Policy may be missed by a peer.

Conditions:
-- Devices are in an auto-sync device group with ASM sync enabled.
-- A bulk action that affects thousands of objects is performed (e.g., enforcing or disabling all signatures).
-- An Apply Policy action is taken immediately afterwards.

Impact:
Peer devices that are still busy processing the large request miss the Apply Policy action, and it is never sent again.

Workaround:
Make a spurious change and reapply the policy.

871705-6 : Restarting bigstart shuts down the system

Component: TMOS

Symptoms:
The 'bigstart restart bigstart' command shuts down the system without displaying or informing the BIG-IP system user that this command can interrupt service. The system goes directly to the inoperative state as soon as the command is run.

Conditions:
-- Running the command bigstart restart bigstart.
-- Running 'systemctl restart systemd-bigstart' twice.

Impact:
Different versions appear to have different behavior:

-- v12.1.5: shell hangs on bigstart command, but the BIG-IP system stays Active.
-- v13.1.0.7: The BIG-IP system goes inoperative upon 'bigstart restart bigstart'.
-- 1v4.1.2.3: The 'bigstart restart bigstart' command cannot find the 'bigstart' service, but 'systemctl restart systemd-bigstart' shows this behavior.

Workaround:
None.

871045-1 : IP fragments are disaggregated to separate TMMs with hardware syncookies enabled

Component: Local Traffic Manager

Symptoms:
With hardware syncookies enabled, HTTP POST requests that are fragmented into separate segments are processed by different TMMs.

Connection is subsequently reset with a TCP RST cause reported as: No flow found for ACK.

Conditions:
-- Hardware syncookies triggered.
-- IP fragmented HTTP POST request.

Impact:
Connection is subsequently reset with TCP RST, cause 'No flow found for ACK'.

Workaround:
None.

870349-1 : Continuous restart of ntlmconnpool after license reinstall★

Component: Local Traffic Manager

Symptoms:
The ntlmconnpool process continuously restarts after reinstalling the licence. The system reports a message in the BIG-IP console:
Re-starting ntlmconnpool.

Conditions:
This occurs when you upgrade your license such that the new license changes the number of TMMs available.

Impact:
System requires reboot, and reports 'Re-starting ntlmconnpool' message continuously in the BIG-IP console.

Workaround:
You must reboot to clear the condition. Once the system comes back up, it operates as expected.

869565-1 : Disabling of HTTP/2 profile on server side does not prevent h2 in ALPN

Component: Local Traffic Manager

Symptoms:
HTTP/2 protocol can be negotiated with the Application-Layer Protocol Negotiation (ALPN) on the Transport Layer Security (TLS) level of communication. When an iRule disables HTTP/2 on a server side, it is assumed that the BIG-IP system no longer offers h2 to a server as an option.

Conditions:
-- A virtual server has an HTTP/2 profile configured on both the client and server sides.
-- A server SSL profile is configured on the virtual server.
-- An iRule using the 'HTTP2::disable serverside' command is attached to the virtual server.

Impact:
The BIG-IP system offers h2 as an option in ALPN when the HTTP/2 profile is disabled on a server side. If h2 is accepted by the server, communication fails since HTTP/2 is disabled and does not decode HTTP/2 traffic.

Workaround:
None.

869553-1 : HTTP2::disable fails for server side allowing HTTP/2 traffic

Component: Local Traffic Manager

Symptoms:
The BIG-IP system provides an iRule command 'HTTP2::disable serverside' to put http2 in passthrough mode. When the command is called during the CLIENT_ACCEPTED event, it should completely disable http2 until the end of TCP connection, or until the HTTP2::enable command is executed.

Conditions:
-- A virtual server has an HTTP/2 profile configured on the server side.
-- An iRule with an the command 'HTTP2::disable serverside' command is attached to the virtual server in the CLIENT_ACCEPTED event.

Impact:
The BIG-IP system continues to send HTTP/2 traffic to a server.

Workaround:
None.

869541-2 : Series of unexpected <aborted> requests to same URL

Component: Access Policy Manager

Symptoms:
Series of unexpected <aborted> requests to same URL

Conditions:
Client using Internet Explorer to access the portal

Impact:
Page load is aborted

Workaround:
Following iRule can be used with customized SPECIFIC PAGE_URL value:

when REWRITE_REQUEST_DONE {
  if {
    [HTTP::path] ends_with "SPECIFIC_PAGE_URL"
  } {

    # log "URI=([HTTP::path])"
    # Found the file we wanted to modify

    REWRITE::post_process 1
    set do_fix 1
  }
}

when REWRITE_RESPONSE_DONE {
  if {[info exists do_fix]} {
    unset do_fix

    set strt [string first {<script>try} [REWRITE::payload]]

    if {$strt > 0} {
      REWRITE::payload replace $strt 0 {
        <script>
          (function () {
            var dl = F5_Deflate_location;
            F5_Deflate_location = function (o) {
              if (o.F5_Location) Object.preventExtensions(o.F5_Location)
              return dl(o);
            }
          })()
        </script>
      }
    }
  }
}

869237-5 : Management interface might become unreachable when alternating between DHCP/static address assignment.

Component: TMOS

Symptoms:
When the Management IP address assignment is changed and the IP address obtained from DHCP lease is used for static interface configuration, the management port might become unreachable after the DHCP lease expiration time, even though interface has a static IP configured.

Conditions:
-- Management IP assignment is changed from dynamic (DHCP) to static.
-- The static IP address that is configured is identical to the DHCP address that was assigned.

Impact:
Remote management access is lost after the DHCP lease expires.

Workaround:
When changing the management interface configuration from DHCP to static, first delete the old configuration, then create new configuration. This can be done with TMSH:

(tmos)# modify sys global-settings mgmt-dhcp disabled
(tmos)# del sys management-ip 10.14.30.111/24
(tmos)# create sys management-ip 10.14.30.111/24 { description configured-statically }

868033-1 : SSL option "passive-close" option is unused and should be removed

Component: Local Traffic Manager

Symptoms:
The SSL profile "passive-close" option is available in TMSH (but not the GUI), but is not actually used.

A side-effect of this issue is: when the "passive-close" option is configured in TMSH, if the profile is later modified in the GUI, the "passive-close" option will be removed from the profile.

Conditions:
-- Modifying a client or server SSL profile in TMSH.

Impact:
The "passive-close" option is not actually used.

Workaround:
Do not use the "passive-close" option.

867985-4 : LTM policy with a 'shutdown' action incorrectly allows iRule execution

Component: Local Traffic Manager

Symptoms:
BIG-IP systems provide manipulation tools over a connection with an LTM policy and/or iRule. LTM policy takes precedence over iRules and has an option to shutdown a connection based on satisfied conditions. When a connection is closing, an iRule should not be executed under the same conditions.

Conditions:
-- The BIG-IP system has a virtual server with an LTM policy and an iRule.
-- The LTM policy has action 'shutdown connection' under certain conditions.
-- The iRule has an event which is triggered under the same conditions.

Impact:
The iRule is executed before the connection is being reset.

Workaround:
None.

867777-3 : Remote syslog server cannot parse violation detail buffers as UTF-8.

Component: Application Security Manager

Symptoms:
Remote syslog server is unable to properly parse the violation detail buffers as UTF-8.

Conditions:
This occurs when the violation detail buffers contain double-byte/non-UTF characters, due to requests that contain non-ASCII UTF-8 characters.

Impact:
The syslog server cannot parse violation detail buffers as UTF-8.

Workaround:
None.

867705-4 : URL for IFRAME element may not be normalized in some cases

Component: Access Policy Manager

Symptoms:
Client JavaScript may see a non-normalized URL for the IFRAME HTML element in Portal Access.

Conditions:
- Original HTML page contains IFRAME element with relative URL
- JavaScript code reads this URL from the IFRAME element

Impact:
The URL for IFRAME element is not normalized and the web application may not work correctly in Portal Access.

Workaround:
Use an iRule to correct the returned IFRAME URL in rewritten JavaScript code. There is no generic iRule pattern; the correction depends on actual JavaScript code, but you can use the following example as a template:

when REWRITE_REQUEST_DONE {
  if { [HTTP::path] ... } { # use appropriate selection for URI
    set correct_location 1
  }
}

when REWRITE_RESPONSE_DONE {
  if {[info exists correct_location]} {
    unset correct_location
    # look for the piece of code to be corrected
    set str2find {...} # use appropriate pattern for rewritten code
    set str_len [string length $str2find]
    set strt [string first $str2find [REWRITE::payload]]

    # make replacement using appropriate corrected code
    if {$strt > 0} {
      REWRITE::payload replace $strt $str_len {...}
    }
  }
}

867549-3 : LCD touch panel reports "Firmware update in progress" indefinitely★

Component: TMOS

Symptoms:
After a software upgrade that includes an LCD firmware update, the LCD touch panel may remain stuck reporting an error indefinitely / for longer than 30 minutes:
Firmware update in Progress may take up to 30 minutes.

Conditions:
This issue occurs when all of the following conditions are met:

-- You have one of the following BIG-IP platforms:
* i850
* i2x00
* i4x00
* i5x00
* i7x00
* i10x00
* i11x00
* i15x00
* HRC-i2x00
* HRC-i5x00
* HRC-i10x00

-- You perform a software upgrade that updates the firmware on the LCD touch panel, e.g. upgrading from BIG-IP v13.1.x to BIG-IP v14.1.x or newer.

Impact:
The system is functional, but the LCD displays the firmware update screen indefinitely. The LCD cannot be used while it is frozen on the firmware update warning screen.

Workaround:
Important: Before attempting this workaround, check that there are no indications the system is still performing a firmware update (such as a terminal prompt), and that the following messages can be found in /var/log/ltm after the most recent boot:

notice chmand[6302]: 012a0005:5: firmware update succeeded.
notice chmand[6302]: 012a0005:5: Firmware check finished.

These messages indicates that the firmware update has finished, and the LCD is displaying the warning screen in error, so it is safe to perform the workaround.

Reboot the BIG-IP system to return the LCD to normal operation.

After a reboot of the BIG-IP operating system, the LCD touch panel should be responsive.

867321-3 : Error: Invalid self IP, the IP address already exists.

Component: Advanced Firewall Manager

Symptoms:
When loading a configuration, the config load fails with an error:

Invalid self IP, the IP address <ip_addr> already exists.

Conditions:
-- Config contains an IPv4 SelfIP
-- Config contains an IPv4-mapped IPv6 address that is assigned to the same vlan

BIG-IP does not prevent you from creating this condition and will allow you to save it.

Impact:
During configuration load will fail:

0107176c:3: Invalid self IP, the IP address <ip_addr> already exists.
Unexpected Error: Loading configuration process failed.

Workaround:
Delete one of the SelfIP addresses and load the configuration.

867253-3 : Systemd not deleting user journals

Component: TMOS

Symptoms:
When setting 'SystemMaxUse' to any value, systemd does not honor this limit, and the specified size is exceeded.

Conditions:
Using a non-TMOS user account with external authentication permission.

Note: Systemd-journald is configured to create a user journal for every remote user that logs into the BIG-IP system.

Impact:
Journald filling up the file system. These journals are allocated with a minimum size of 4MiB and are not removed when the log entries age-out.

Workaround:
Option 1:
To immediately free up space, manually remove per-user journal logs from the following location:
  /var/log/journal/*/user-*

Option 2:
To prevent the system from creating these journal files going forward:

1. Edit /etc/systemd/journald.conf and add the following at the bottom of the file:
  SplitMode=none

2. Restart systemd-journal service
  # systemctl restart systemd-journald

3. Delete the existing user journal files from /var/log
  # rm /var/log/journal/*/user-*

Note:
-- You must apply this workaround separately to each blade of a VIPRION or vCMP guest running on a VIPRION.
-- You must reapply this workaround after performing software installations.

867249-1 : New SNMP authentication type and privacy protocol algorithms not available in UI

Component: TMOS

Symptoms:
You are unable to configure the new SNMP authentication type and privacy protocol algorithms from the BIG-IP Configuration utility.

Conditions:
A BIG-IP with net-snmp libraries v5.8

Impact:
The new authentication type and privacy protocol algorithms cannot be configured via the GUI.

Workaround:
Specify the auth-protocol and privacy-protocol values using TMSH.

modify /sys snmp users add { <user> { access rw security-level auth-privacy auth-protocol sha256 auth-password defaultPassword privacy-protocol aes privacy-password defaultPassword username <user> } }

867177-3 : Outbound TFTP and Active FTP no longer work by default over the management port

Component: TMOS

Symptoms:
When attempting to use TFTP or Active FTP at the BIG-IP management port to transfer files to a remote system, the connection eventually times out and the file is not transferred.

This is expected behavior resulting from the enhancement made in BIG-IP v14.1.0:
"Support for network firewall rules on the management port" :: https://techdocs.f5.com/kb/en-us/products/BIG-IP_ltm/releasenotes/product/relnote-bigip-14-1-0.html#rn_ltm-tmos_1410_new.

When attempting to use TFTP and Active FTP via tmm interfaces will work as it has the necessary Algorithm capabilities to set up return listeners.

Conditions:
- BIG-IP v14.1.0 or greater.
- Attempt to initiate TFTP or Active FTP from the BIG-IP management port through command line.

Impact:
Unable to use TFTP or Active FTP to transfer files to/from the BIG-IP system over management port

Workaround:
Consider using encrypted transport (sftp, scp, etc.) in order to avoid the exposure of sensitive data, including passwords.

Manually load connection tracking for the necessary protocol(s) from the command line with:
modprobe nf_conntrack_ftp
modprobe nf_conntrack_tftp

866953-5 : Portal Access: F5_Inflate_onclick wrapper functionality needs refining

Component: Access Policy Manager

Symptoms:
Event handler defined on DOM elements is not executed properly, and some events on a page like onClick() are not executed properly.

Conditions:
-- Portal access enabled.
-- Rewrite enabled.
-- New value of event handler is equal to inline handler already set for the element.

Impact:
Web application does not operate as expected.

Workaround:
Use a custom iRule, for example, an iRule that redefines F5_Inflate_onclick:

Note: In the following iRule, substitute <PATH_TO_PAGE> with the page in your web application.

when REWRITE_REQUEST_DONE {
  if {
    [HTTP::path] ends_with "<PATH_TO_PAGE>"
  } {

    # log "URI=([HTTP::path])"
    # Found the file to modify

    REWRITE::post_process 1
    set do_it 1
  }
}

when REWRITE_RESPONSE_DONE {
  if {[info exists do_it]} {
    unset do_it

    set strt [string first {<script>try} [REWRITE::payload]]

    if {$strt > 0} {
      REWRITE::payload replace $strt 0 {
        <script>
          (function(){
            var ioc = F5_Inflate_onclick;

            F5_Inflate_onclick = function(o, incr, v) {
              if (v === o.onclick && typeof v === 'function') {
                return v;
              }
              return ioc.call(this,o,incr,v);
            }

          })();
        </script>
      }
    }
  }
}

865981-1 : ASM GUI and REST become unresponsive upon license change

Component: Application Security Manager

Symptoms:
When there is a license change at the same time as a security update (ex. Threat Campaigns or Attack Signatures), the system can reach a deadlock which blocks some operations, eventually leading to all the REST threads becoming blocked and unresponsive.

Conditions:
A license change occurs at the same time as a security update (ex. Threat Campaigns or Attack Signatures).

Impact:
ASM user interfaces are unresponsive.

Workaround:
Kill asm_config_server.pl or restart ASM

865653-3 : Wrong FDB table entries with same MAC and wrong VLAN combination

Component: TMOS

Symptoms:
Forwarding DataBase (FDB) table has duplicate MAC entries with the incorrect VLANs.

MAC entries are correct in the switch but not in the control plane.

Conditions:
Enable L2Wire.

Impact:
Duplicate MAC entries with incorrect VLANs in FDB table.

Workaround:
Restart bcm56xxd:
bigstart restart bcm56xxd

Note: You can use tmsh to see the table:
tmsh -m show net fdb

865329-1 : WCCP crashes on "ServiceGroup size exceeded" exception

Component: TMOS

Symptoms:
Under general usage; WCCP crashes with a "ServiceGroup size exceeded" exception.

Conditions:
Have WCCP service groups configured.

Impact:
WCCP throws an exception and crashes.

Workaround:
None.

864989-2 : Remote logger violation_details field content appears as "N/A" when violations field is not selected.

Component: Application Security Manager

Symptoms:
When remote logger is enabled and violation_details field is selected for output, but violations field is not selected - content of violation_details field appears as "N/A".

Conditions:
- Remote logger is enabled;
- violation_details field is selected for output;
- violations field is not selected for output;
- violation is detected and reported to remote logger.

Impact:
Remote logger will not contain violation_details in report.

Workaround:
Enable violations field for remote logging.

864897-2 : TMM may crash when using "SSL::extensions insert"

Component: Local Traffic Manager

Symptoms:
TMM crashes.

Conditions:
iRule with "SSL::extensions insert"

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

864649-4 : The client-side connection of a dhcpv4_fwd profile on Broadcast DHCP-Relay Virtual Server never expires from the connection table

Component: Local Traffic Manager

Symptoms:
The client-side connection of the dhcpv4_fwd profile on Broadcast DHCP-Relay Virtual Server never expires from the connection table.

Conditions:
Configure dhcpv4_fwd profile on Broadcast DHCP-Relay Virtual Server.

Impact:
Even after correcting the listener to use dhcpv4 (relay) instead of dhcpv4_fwd (forwarding) profile, the client-side connection from the dhcpv4_fwd profile remains.

Workaround:
Delete the long-standing connection from the connection table.

864321-3 : Default Apache testing page is reachable at <mgmt-ip>/noindex

Component: TMOS

Symptoms:
For BIG-IP v14.1.x and later, the default testing page of the Apache web-server is accessible at <mgmt-ip>/noindex.

Conditions:
This is encountered when navigating to the /noindex page from the web browser.

Impact:
Limited information about the Apache web server and its operating system is available to users with access to the mgmt port interface.

Workaround:
None.

863601-3 : Panic in TMM due to internal mirroring interactions

Component: Wan Optimization Manager

Symptoms:
The Traffic Management Microkernel suddenly restarts due to a SIGSEGV segmentation fault.

Conditions:
-- APM is being used.
-- Connection mirroring is being used.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Avoid configuring connection mirroring when APM is being used.

863165-3 : Unbalanced trunk distribution on i4x00 and 4000 platforms with odd number of members.

Component: Local Traffic Manager

Symptoms:
For the i4x00 and 4000 platforms, egress trunk distribution will be unbalanced if the number of trunk members is not a power of 2.

Conditions:
A trunk is configured with an odd number of trunk interfaces or a trunk member goes down such that the number of working members is odd.

Impact:
Uneven traffic distribution. Some interfaces will see more traffic than others.

Workaround:
Insure the number of trunk interfaces is a power of 2: 2, 4, or 8.

862949-3 : ZoneRunner GUI is unable to display CAA records

Component: Global Traffic Manager (DNS)

Symptoms:
Attempting to manage a CAA record via the GUI shows an error:

Resolver returned no such record.

Conditions:
-- Navigate to DNS :: Zones :: ZoneRunner :: Resource Record List :: Search All Records.
-- Click on record of type CAA.

Impact:
Unable to update CAA records via the GUI.

Workaround:
You can use either of the following workarounds:

-- Manually edit the BIND configuration.
-- Delete the record and create a new one with the desired changes.

862885-2 : Virtual server-to-virtual server with 'Tail Loss Probe' enabled can result in 'no trailing data' error

Component: Local Traffic Manager

Symptoms:
A configuration with a virtual server-to-virtual server flow established, for example by the 'virtual' iRule command, and using a TCP stack with 'Tail Loss Probe' enabled, might encounter a race between the delayed ACK and the tail loss probe, which can lead to a tmm_panic or an OOPs message:
no trailing data.

Conditions:
-- Virtual server-to-virtual server flow established.
-- TCP profile with 'Tail Loss Probe' enabled.
-- Certain timing related traffic scenario.

Impact:
TMM generates a core and reports an OOPs message:
no trailing data.

Workaround:
Do not use a TCP stack with 'Tail Loss Probe' enabled in conjunction with a virtual server-to-virtual server flow configuration.

862693-6 : PAM_RHOST not set when authenticating BIG-IP using iControl REST

Component: TMOS

Symptoms:
The missing PAM_RHOST setting causes the radius packet to go out without the calling-station-id avp

Conditions:
1. Configure radius server and add it to BIG-IP
tmsh create auth radius system-auth servers add { myrad }

2. modify auth source type to radius
tmsh modify auth source { type radius }

3. try to authenticate to BIG-IP using iControl REST

Impact:
Remote authentication using iControl REST is not allowed based on calling-station-id

862525-1 : GUI Browser Cache Timeout option is not available via tmsh

Component: TMOS

Symptoms:
In BIG-IP v10.x it was possible to change the browser cache timeout from bigpipe using the command:
bigpipe httpd browsercachetimeout

In 14.1.2.1 and newer, it is still possible to change the value in the GUI using "System :: Preferences :: Time To Cache Static Files.

However there is no tmsh equivalent in any version.

Conditions:
This is encountered when you try to configure the GUI browser cache timeout setting using tmsh.

Impact:
Unable to modify browser cache timeout except from GUI

Workaround:
Using GUI to configure this field. GUI System :: Preferences :: Time To Cache Static Files.

862413-1 : Broken layout in Threat Campaigns and Brute Force Attacks pages

Component: Application Security Manager

Symptoms:
Horizontal scroll added to the page unnecessarily.

Conditions:
This occurs when viewing the Threat Campaigns or Brute Force Attacks page in any browser

Impact:
The horizontal scroll bar breaks the intended page layout.

Workaround:
N/A

862337-2 : Message Routing Diameter profile fails to forward messages with zero length AVPs

Component: Service Provider

Symptoms:
Message Routing Diameter profile does not forward diameter messages that include an AVP with a zero (0) length data field.

Conditions:
-- A virtual server with an Message Routing Diameter Profile.
-- A diameter message containing an AVP with a zero length data field.

Impact:
Diameter messages with zero length AVPs are not forwarded as expected.

Workaround:
None.

862069-1 : Using non-standard HTTPS and SSH ports fails under certain conditions

Component: Local Traffic Manager

Symptoms:
On all versions 12.1.0 or later, if you change the HTTPS port (e.g., to 8443, as is required for '1NIC' BIG-IP Virtual Edition (VE) deployments) and then expose the management UI via a self IP in a non-zero route domain, you cannot access the system via the GUI or CLI, and the system does not pass traffic as expected.

In versions 14.1.0 and later on VE installations, attempting to manage a BIG-IP system over a self IP can fail if all these conditions are met:
-- Non-standard HTTPS port used.
-- No TMM default route configured.
-- No route to the client IP address configured.

Conditions:
-- Modify the default HTTPS and/or default SSH ports.

And either of the following:

On 12.1.0 and above:
-- Expose the management UI and/or CLI via a self IP in a non-zero route domain.

On 14.1.0 and above:
-- No TMM default route configured.
-- No route to the client IP address configured.

Impact:
-- Unable to access BIG-IP GUI on non-standard HTTPS port.
-- Unable to access BIG-IP CLI on non-standard SSH port.

Workaround:
None.

862001-1 : Improperly configured NTP server can result in an undisciplined clock stanza

Component: Local Traffic Manager

Symptoms:
There can be an undisciplined clock stanza in /etc/ntp.conf, resulting in an undisciplined clock.

NTP documentation:
http://support.ntp.org/bin/view/Support/UndisciplinedLocalClock

Conditions:
This might occur in at least the following ways:
-- No server is specified in 'sys ntp servers {}'.
-- A server does exist, but an improper method was used to configure the NTP server.

Impact:
When the LOCAL undisciplined clock is left as a valid time-source, it delays the system synchronizing time to a real NTP server. It can also result in time being adjusted incorrectly if the the remote time-source becomes unreachable.

Workaround:
Configure a dummy server via 'ntp servers {}' that does not respond.

While this removes the undisciplined local clock, it does result in ntpd having an unreachable time source, and could be flagged in diagnostics, misdirect other troubleshooting, generate unnecessary traffic, etc.

However, if the 'dummy' source starts responding, it could become a rogue time source.

860617-3 : Radius sever pool without attaching the load balancing algorithm will result into core

Component: Access Policy Manager

Symptoms:
Tmm crashes after configuring a radius server pool.

Conditions:
-- Radius server pool exists
-- Radius server pool does not have a designated load balancing algorithm.

Impact:
TMM will core while radius accounting stops. Traffic disrupted while tmm restarts.

Workaround:
N/A

860573-3 : LTM iRule validation performance improvement by tracking procedure/event that have been validated

Component: TMOS

Symptoms:
Loading (with merge) a configuration file that references some iRules results in validating every iRule and ends up validating the same procedures multiple times for every virtual server a single iRule is associated with.

Conditions:
Configuration which has 100's of virtual servers, some iRules that are assigned to all virtual servers and a few library iRules.

Impact:
Task fails (via REST) or ends up taking a really long time when run manually.

Workaround:
None.

860277-4 : Default value of TCP Profile Proxy Buffer High Low changed in 14.1

Component: Local Traffic Manager

Symptoms:
Version: 13.1.3.1

# tmsh list ltm profile tcp tcp proxy-buffer-high proxy-buffer-low
ltm profile tcp tcp {
    proxy-buffer-high 49152
    proxy-buffer-low 32768
}

       proxy-buffer-high
            Specifies the highest level at which the receive window is closed.
            The default value is 49152.

       proxy-buffer-low
            Specifies the lowest level at which the receive window is closed.
            The default value is 32768.

Version: 14.1.2.2

# list ltm profile tcp TCP proxy-buffer-high proxy-buffer-low
ltm profile tcp tcp {
    proxy-buffer-high 65535
    proxy-buffer-low 32768
}

proxy-buffer-high
            Specifies the highest level at which the receive window is closed.
            The default value is 131072.

proxy-buffer-low
            Specifies the lowest level at which the receive window is closed.
            The default value is 98304.

Conditions:
Looking at the help for proxy-buffer-high and proxy-buffer-low in tmsh

Impact:
The default value for proxy-buffer-high is 65535 and the default value for proxy-buffer-low is 32768, but the help text indicates that the defaults are 13072 and 98304 respectively.

860245-1 : SSL Orchestrator configuration not synchronized across HA peers after upgrade from 14.1.2.x

Component: TMOS

Symptoms:
The SSL Orchestrator configuration is not synced properly across the high availability (HA) configuration.

The REST framework versions are different on the devices.

Conditions:
-- BIG-IP devices configured for HA.
-- SSL Orchestrator configured.
-- Upgrading from v14.1.2 to v15.1.x or newer.

Impact:
SSL Orchestrator configuration does not sync across BIG-IP HA peers.

Workaround:
The following steps are required on all HA, first on the active and then on the standby BIG-IP devices.

1. Open a BIG-IP terminal session with admin/root level access.
2. Run the following commands, in the order specified:

bigstart stop restjavad
rm -rf /shared/em/ssl.crt/*
bigstart start restjavad
restcurl -X DELETE shared/resolver/device-groups/tm-shared-all-big-ips/devices
restcurl -X DELETE shared/gossip-conflicts
restcurl -X DELETE shared/device-certificates
restcurl -X POST -d '{"generateKeyPair": true}' shared/device-key-pair
bigstart restart restjavad restnoded

860181-1 : After sync failure due to lack of local self-IP on the peer, adding in the self-IP does not resolve the sync error

Component: TMOS

Symptoms:
If you have BIG-IPs in a Device Service Cluster, and you attempt to sync a new floating self-IP over to a standby on a VLAN that the standby does not currently have a non-floating self-IP on, you will get an error and the sync will fail. This is the correct behavior. The issue, though, is that if you subsequently create a non-floating self-IP on the standby in order to rectify this issue, the sync will still fail.

Conditions:
-- BIG-IPs configured in a Device Service Cluster.
-- Device group is configured to use Automatic Sync or Manual with Incremental sync.
-- Attempting to sync a floating self-IP to a system that does not have a non-floating self-IP on the same VLAN.

Impact:
You are unable to sync BIG-IPs. Both devices will be out of sync and you will see an error displayed:

01070355:3: Self IP <address> is declared as a floating address but there is no non-floating address defined for this network

Even after you add a non-floating self-IP on the affected device, a subsequent config sync does not fix the error.

Workaround:
If you make any other configuration change that generates a config sync, this will correct itself after the other device has added a non-floating Self-IP.

Otherwise, this can be corrected by doing a full config sync, and can be done via the GUI or via tmsh.

In the GUI, change the Sync Type for the device group to Manual with Full Sync, and then do a config sync.

In tmsh, the command is:
run cm config-sync force-full-load-push to-group <affected_device_group>

858877-3 : SSL Orchestrator config sync issues between HA-pair devices

Component: TMOS

Symptoms:
SSL Orchestrator configuration deployment across BIG-IP devices in a high-availability (HA) group may result in inconsistent state, if during deployment the connectivity between the HA peers is lost.

Conditions:
Deploying SSL Orchestrator configuration across BIG-IP devices in an HA group.

Impact:
Inconsistent SSL Orchestrator configuration on BIG-IP devices in an HA group.

Workaround:
Run the /usr/bin/ha-sync script. See ha-sync -h for help.

858445-1 : Missing confirmation dialog for apply policy in new policy pages

Component: Application Security Manager

Symptoms:
There is no confirmation dialog for applying a policy.

Conditions:
This occurs when visiting any policy page available from the policies list.

Impact:
Without a confirmation dialog, it is easier to apply a policy by mistake

Workaround:
N/A

858309-4 : Setting a self IP with an IPv6 Address with an embedded IPv4 address causes tmm to continually restart

Component: Local Traffic Manager

Symptoms:
TMM keeps restarting after setting a self IP to an IPv6 address with an embedded IPv4 address in TMSH.

Conditions:
Set self IP to an IPv6 address with an embedded Ipv4 address using tmsh.

Impact:
Tmm restarts repeatedly. Traffic disrupted while tmm restarts.

Workaround:
Set self IP to IPv4 address.

858173-3 : SSL Orchestrator RPM not installed on HA-peer after upgrade from 14.1.2.1★

Component: TMOS

Symptoms:
With BIG-IP devices configured in high availability (HA) mode, with SSL Orchestrator configured, when upgrading from v14.1.2 to v15.1.x or newer, the SSL Orchestrator configuration is not synced properly across the high availability (HA) configuration.

This problem is caused by a REST framework sync issue between the devices in the high availability (HA) pair.

Conditions:
-- BIG-IP devices configured in high availability (HA) mode.
-- SSL Orchestrator configured.
-- Upgrading from v14.1.2 to v15.1.x or newer.

Impact:
SSL Orchestrator configuration not syncing across the BIG-IP high availability (HA) pair.

Workaround:
The following steps are required on both high availability (HA) peers, first on the active and then on the standby BIG-IP device.

1. Open a terminal session with admin/root level access.
2. Run the following commands, in the order specified:

bigstart stop restjavad
rm -rf /shared/em/ssl.crt/*
bigstart start restjavad
restcurl -X DELETE shared/resolver/device-groups/tm-shared-all-big-ips/devices
restcurl -X DELETE shared/gossip-conflicts
restcurl -X DELETE shared/device-certificates
restcurl -X POST -d '{"generateKeyPair": true}' shared/device-key-pair
bigstart restart restjavad restnoded

857897-2 : Address and port lists are not searchable within the GUI

Component: Advanced Firewall Manager

Symptoms:
Search from shared objects of IP addresses in the address list and port numbers in the port list does not work as expected. In previous releases, it was possible to expand all address/port lists in a single operation. There is no support for that in this release.

Conditions:
Searching from shared objects of IP addresses in the address list and port numbers in the port list.

Impact:
It is no longer possible to expand all address/port lists in a single operation, and because all lists needs to be expanded to allow a search using the browser or cache the objects in the embedded search box from the GUI, the functionality does not work as expected.

Workaround:
None.

857677-3 : Security policy changes are applied automatically after asm process restart

Component: Application Security Manager

Symptoms:
Changes in security policy are applied after ASM restart. This may activate unintended enforcement.

Conditions:
Restart ASM.

Impact:
Potentially unintended activation of new security entities.

Workaround:
None.

857633-7 : Attack Type (SSRF) appears incorrectly in REST result

Component: Application Security Manager

Symptoms:
After ASM Signature update ASM-SignatureFile_20191117_112212.im is installed, a mistaken value for Attack Type (SSRF) appears incorrectly in REST query results.

Conditions:
ASM Signature update ASM-SignatureFile_20191117_112212.im is installed, even if another ASM Signature update is installed subsequently.

Impact:
A mistaken value for Attack Type (SSRF) appears incorrectly in REST query results. This impacts BIG-IQ usage and other REST clients.

Workaround:
Workaround:
1) Install a newer ASU to reassociate the affected signatures with the correct attack type
2) Run the following SQL on the affected BIG-IP devices:

DELETE FROM PLC.NEGSIG_ATTACK_TYPES WHERE attack_type_name = "Server-Side Request Forgery (SSRF)";

857045-1 : LDAP system authentication may stop working

Component: TMOS

Symptoms:
If the system daemon responsible for LDAP authentication crashes, the system will not automatically restart it, and remote LDAP authentication may stop working.

In /var/log/daemon.log, you may see the following:

warning systemd[1]: nslcd.service failed

Conditions:
Nslcd daemon crashed, and it fails to restart.

Impact:
System authentication stops working until nslcd is restarted.

Workaround:
Manually restart nslcd daemon:

systemctl start nslcd

nslcd can be reconfigured to restart automatically and create core files when it crashes, though these changes will be lost across software installs (and is not backed up as part of a UCS archive):

1. Run "systemctl edit nslcd", which will open a text editor (by default, nano).

2. In the text editor, add these contents:

[Service]

# Allow core files
LimitCORE=infinity
# Try to keep auth daemon running, even if it crashes
Restart=always

3. Exit the text editor and save the file

4. Check the output of "systemctl status nslcd" for any warnings/errors from systemd as a result of editing the file; there should not be any.

5. Restart nslcd:
systemctl restart nslcd

856953-4 : IPsec: TMM cores after ike-peer switched version from IKEv2 to IKEv1

Component: TMOS

Symptoms:
In rare circumstances, TMM may core when changing the ike-peer configuration from IKEv2 to IKEv1.

Conditions:
- The BIG-IP system is attempting to establish an IKEv2 tunnel.
- The related ike-peer config is changed from IKEv2 to IKEv1.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not reconfigure the ike-peer configuration while the related IPsec tunnel is attempting to establish.

856909-3 : Apmd core occurs when it fails to retrieve agentInfo

Component: Access Policy Manager

Symptoms:
APMD daemon crashes.

Conditions:
When configuring 'REST API Security (Open API Spec)' application with Rate Limiting in Security.

Specific conditions required to reproduce this issue have not been identified.

Impact:
APMD crashes and restarts during configuration time. No service impact.

Workaround:
No workaround is needed because it is during configuration time and the system recovers by itself.

856713-3 : IPsec crash during rekey

Component: TMOS

Symptoms:
IPsec-related tmm crash and generated core file during rekey.

Conditions:
-- IPsec timeout occurs.
-- Some temporary SA's are created by racoon.

Impact:
Tmm crashes and creates core file. Traffic disrupted while tmm restarts.

Workaround:
None.

853989-1 : DOSL7 Logs breaks CEF connector by populating strings into numeric fields

Component: Application Security Manager

Symptoms:
Dosl7 remote logger messages breaks ArcSight CEF connector when using ArcSight destination format. CEF Logs are dropped.

Conditions:
- ASM provisioned
- Dos profile attached to a virtual server
- Dos application protection enabled
- Logging profile configured with ArcSight format attached to a virtual

Impact:
ArcSight server might be broken after getting dosl7 attack detection messages from the BIG-IP.

Workaround:
BIG-IP iRule or another proxy can be used to intercept ArcSight messages and strip the a string portion from ArcSight numeric type fields.

853617-1 : Validation does not prevent virtual server with UDP, HTTP, SSL, (and OneConnect) profiles

Component: TMOS

Symptoms:
Validation does not prevent specific configuration, but reports errors. In newer versions:

-- err tmm1[7019]: 01010008:3: Proxy initialization failed for /Common/vs_test. Defaulting to DENY.
-- err tmm1[7019]: 01010008:3: Listener config update failed for /Common/vs_test: ERR:ERR_ARG

In older versions:

-- err tmm[23118]: 01010007:3: Config error: virtual_server_profile no suitable hudchain
-- err tmm[23118]: 01010007:3: Config error: add virtual server profile error

Conditions:
Creating a virtual server with UDP, HTTP, SSL, (and OneConnect) profiles.

Impact:
Virtual server is defined and in configuration, but does not pass traffic.

On v12.1.x and v13.0.0, attempts to recover from this configuration can leave TMM in a bad state, which can then result in a TMM crash.

Workaround:
None.

853565-2 : VCMP host primary blade reboot causes security policy loss in the VCMP guest primary blade

Component: Application Security Manager

Symptoms:
After rebooting a vCMP guest with ASM provisioned and configured, there are no asm policies. The following command returns no results:

tmsh list asm policy all-properties

Conditions:
-- vCMP host with 2+ slots
-- vCMP guest with 2+ slots
-- LTM+ASM provisioned
-- ASM security policy + virtual server configured
-- reboot primary slot of VCMP host

Impact:
There are no ASM policies on the vCMP guest.

853269-1 : Incorrect access privileges to "Policy List" and "Security Policy Configuration" pages in case of complex role user

Component: Application Security Manager

Symptoms:
Incorrect access privileges to "Policy List" and "Security Policy Configuration" pages are given

Conditions:
User has a complex role, e.g. ASM Admin in partition A and Guest in partition B

Impact:
User with complex role gets incorrect privileges in "Policy List" and "Security Policy Configuration" pages

Workaround:
N/A

853177-1 : 'Enforcement Mode' in security policy list is shown without value

Component: Application Security Manager

Symptoms:
The 'Enforcement Mode' field in the security policy list has no value.

Conditions:
Security policy list in the GUI is sorted by 'last modified'.

Impact:
Security policy list page has empty 'Enforcement Mode' field.

Workaround:
None.

853161-4 : Restjavad has different behavior for error responses if the body is over 2k

Component: TMOS

Symptoms:
The error Response body from iControl REST is truncated at 2048 characters. If an iControl REST response sends an error that is longer than 2048 characters, the truncated response will not contain valid JSON.

Conditions:
This occurs when iControl REST error messages are longer than 2048 characters.

Impact:
The error response body is deformed when the length of the error body is more than 2k characters

852953-1 : Accept Client Hello spread over multiple QUIC packets

Component: Local Traffic Manager

Symptoms:
A QUIC connection does not complete the handshake successfully when the Client Hello spans multiple initial packets.

Conditions:
-- QUIC is in use.
-- A Client Hello is received that spans multiple packets.

Impact:
QUIC is unable to process a Client Hello that spans multiple packets.

Workaround:
None.

852577-5 : [AVR] Analytic goodput graph between different time period has big discrepancy

Component: Application Visibility and Reporting

Symptoms:
The incorrect goodput value is showing on the GUI > Analytics > TCP > Goodput.

Conditions:
AVR is provisioned
Running TCP related traffic (with the amount that can exceeds the MAX_INT value in any aggregation level).

Impact:
AVR statistics for TCP goodput may be incorrect.

Workaround:
There is no workaround at this time.

852565-5 : On Device Management::Overview GUI page, device order changes

Component: TMOS

Symptoms:
When manual device group sync is enabled, the device with the most recent change will be displayed at the top of the Device Management::Overview GUI page.

Conditions:
-- Multiple devices in a device group
-- Device group has manual config sync enabled
-- A change is made on a device

Impact:
When the list loads, the device with the most recent changes is displayed at the top. This can make the device order appear to be inconsistent, and can create confusion when doing manual config sync if you are expecting the order to be always consistent.

852429-1 : "ASM subsystem error" logged when creating policies

Component: Application Security Manager

Symptoms:
After creating certain security policies, errors are logged to /var/log/asm:

crit g_server_rpc_handler_async.pl[2328]: 01310027:2: ASM subsystem error
(asm_config_server.pl,F5::DbUtils::insert_data_to_table): Row 7 of table PLC.PL_SUGGESTIONS is missing viol_index () -- skipping
N

Conditions:
This occurs when creating security policy based on the following security templates:
- drupal
- owa
- sharepoint
- wordpress

Impact:
Misleading errors are logged in ASM log file; they can be safely ignored.

852325-1 : HTTP2 does not support Global SNAT

Component: Local Traffic Manager

Symptoms:
The Global SNAT feature does not work with HTTP2.

Conditions:
-- Global SNAT is used
-- HTTP2 is used.

Impact:
Traffic uses the incorrect IP addresses when sourced from the BIG-IP system.

Workaround:
Use an explicit SNAT setting: SNAT Auto-Map or a SNAT pool.

852265-1 : Virtual Server Client and Server SSL profile list boxes no longer automatically scale for width

Component: TMOS

Symptoms:
The 'SSL Profile (Client)' and 'SSL Profile (Server)' listboxes (both 'Selected' and 'Available') now have a fixed width when viewing Virtual Server settings.

Conditions:
-- An SSL profile (client or server) with a long name.
-- Accessing the Virtual Server settings page in the GUI.

Impact:
If many SSL profiles start with the same several letters, it may be impossible to detect which one is the desired profile.

Workaround:
None.

851785-3 : BIG-IP 10350V-F platform reported page allocation failures in N3FIPS driver

Component: TMOS

Symptoms:
Despite having free memory, the BIG-IP system logs kernel page allocation failures to the /var/log/kern.log file. The first line of the output appears similar to the following example:

swapper/13: page allocation failure: order:2, mode:0x204020

After that, a stack trace follows. The process name in the line ('swapper/16', in this example). You may see generic Linux processes or processes specific to F5 in that line.

Conditions:
This issue is known to occur on the appliance 10350V-F D112.

Workaround:
You can work around this issue by increasing the value of the min_free_kbytes kernel parameter. This controls the amount of memory that is kept free for use by special reserves.

It is recommend to increase this to 128 MB (131072 KB).

When instantiating this workaround, you must consider whether you want the workaround to survive only reboots, or to survive reboots, upgrades, RMAs, etc. This is an important consideration to make, as you should stop using this workaround when this issue is fixed in a future version of BIG-IP software. So consider the pros and cons of each approach before choosing one.

-- If you want the workaround to survive reboots only, perform the following procedure:

1) Log on to the advanced shell (BASH) of the primary blade of the affected system.

2) Run the following commands (with the desired amount in KB):

# clsh "sysctl -w vm.min_free_kbytes=131072"
# clsh "echo -e '\n# Workaround for ID 851785' >> /etc/sysctl.conf"
# clsh "echo 'vm.min_free_kbytes = 131072' >> /etc/sysctl.conf"

-- If you want the workaround to survive reboots, upgrades, RMAs, etc., perform the following procedure:

1) Log on to the advanced shell (BASH) of the primary blade of the affected system.

2) Run the following commands (with the desired amount in KB):

# clsh "sysctl -w vm.min_free_kbytes=131072"
# echo -e '\n# Workaround for ID851785' >> /config/startup
# echo 'sysctl -w vm.min_free_kbytes=131072' >> /config/startup

Note that the last two commands are not wrapped inside 'clsh' because the /config/startup file is already automatically synchronized across all blades.

Once the issue is fixed in a future BIG-IP version, remove the workarounds:

-- To remove the first workaround:

1) Edit the /etc/sysctl.conf file on the BIG-IP appliance and remove the added lines at the bottom.

2) Reboot the system by running 'clsh reboot'. This will restore the min_free_kbytes kernel parameter to its default value for the BIG-IP version you are running.

-- To remove the second workaround:

1) Edit the /config/startup file on the BIG-IP appliance and remove the extra lines at the bottom.

2) Reboot the system by running 'clsh reboot'. This restores the min_free_kbytes kernel parameter to its default value for the BIG-IP version you are running.

To verify the workaround is in place, run the following command (this should return the desired amount in KB):

# clsh "cat /proc/sys/vm/min_free_kbytes"

851757-1 : Receiving a TLS END_OF_EARLY_DATA message in QUIC is a PROTOCOL_VIOLATION

Component: Local Traffic Manager

Symptoms:
When a TLS END_OF_EARLY_DATA message is received by QUIC, a CONNECTION_CLOSE frame with a CRYPTO_ERROR is produced. However, the error should be a PROTOCOL_VIOLATION.

Conditions:
-- QUIC is in use.
-- A TLS END_OF_EARLY_DATA message is received.

Impact:
A CRYPTO_ERROR is produced, however, the error should be PROTOCOL_VIOLATION.

Workaround:
None.

851425-1 : Update QLOG to draft-01

Component: Local Traffic Manager

Symptoms:
The BIG-IP QLOG implementation is currently on draft-00, and draft-01 has been released.

Conditions:
QUIC and QLOG are in use.

Impact:
Existing third-party applications might remove support for QLOG draft-00 at some point.

Workaround:
None.

851385-1 : Failover takes too long when traffic blade failure occurs

Component: Local Traffic Manager

Symptoms:
When blades 1 and 4 are disabled on the active chassis, the failover period is between 3.4 to 4.7 seconds before the next-active device starts processing messages.

If the blades are physically pulled from the chassis,
the failure occurs within 1 second.

Conditions:
-- Multi-blade VIPRION system
-- Blades 1 and 4 are connected to the network via trunks, blades 2 and 3 are CPU-only blades
-- Blades 1 and 4 are disabled via the GUI

Impact:
Significant delay before BIG-IP delivers a web page during between-cluster failover

851353-1 : Connection reset with incorrect error code when invalid or malformed header is received in an HTTP/3 request

Component: Local Traffic Manager

Symptoms:
Invalid pseudo header or malformed header in an HTTP/3 request should result in resetting of the stream with error code of HTTP3_GENERAL_PROTOCOL_ERROR. Instead the connection is reset with HTTP3_UNEXPECTED_FRAME error code.

Conditions:
-- Virtual server with QUIC, HTTP/3, HTTP, SSL, and httprouter profiles.
-- HTTP/3 header frame from client with invalid or malformed header is received.

Impact:
Connection is reset with incorrect error code, instead of just the individual stream.

Workaround:
No workaround.

851121-2 : Database monitor DBDaemon debug logging not enabled consistently

Component: Local Traffic Manager

Symptoms:
Debug logging in the database monitor daemon (DBDaemon) for database health monitors (mssql, mysql, postrgresql, oracle) is enabled on a per-monitor basis.
When a ping is initiated for a particular monitor with debug logging enabled in the monitor configuration, debug logging in DBDaemon is enabled.
When a ping is initiated for a particular monitor with debug logging disabled in the monitor configuration, debug logging in DBDaemon is disabled.
When monitoring database pool members with a mix of monitors with debug logging enabled vs. disabled, the result can be that debug logging in DBDaemon is enabled and disabled at times which do not correspond to all actions related to a specific database monitor, or pool members monitored by that monitor.
In addition, debug messages logging internal DBDaemon state related to the management of the full collection of monitored objects, active threads, etc. may not be logged consistently.

Conditions:
-- Using multiple database health monitors (mssql, mysql, postrgresql, oracle)
-- Enabling debug logging on one or more database health monitors, but not all

Debug logging for database health monitors is enabled by configuring the "debug" property of the monitor with a value of "yes".
Debug logging is disabled by configuring the "debug" property with a value of "no" (default).

# tmsh list ltm monitor mysql mysql_example debug
ltm monitor mysql mysql_example {
debug yes
}

Impact:
Logging of database monitor activities by DBDaemon may be inconsistent and incomplete, impeding efforts to diagnose issues related to database health monitors.

Workaround:
When attempting to diagnose database health monitor issues with DBDaemon debug logging, enable debug logging for ALL database monitors currently in use.
Once diagnostic data collection is completed, disable debug logging for all database monitors currently configured/in use.

851101-4 : Unable to establish active FTP connection with custom FTP filter

Component: Local Traffic Manager

Symptoms:
Unable to establish active FTP connection with custom FTP filter.

Conditions:
All of the following conditions are true:
-- Virtual server using custom FTP filter.
-- FTP filter has port (port used for data channel) set to 0 (zero).
-- Virtual server has source-port set to preserve-strict.
-- Using active FTP through the virtual server.

Impact:
-- The active FTP data channel is reset.
-- Commands that require data channel in active mode fail.

Workaround:
-- Change source-port to change or preserve.
-- Set port on FTP filter to be used for data channel.
-- Use passive FTP.

851021-1 : Under certain conditions, 'load sys config verify file /config/bigip.conf' may result in a 'folder does not exist' error

Component: TMOS

Symptoms:
TMSH error example:

Configuration error: Can't associate ASM device sync (/Common/testsync/staging.example.com) folder does not exist

Conditions:
The conditions under which this occurs are unknown.

Impact:
Load of config file fails with an error that the folder does not exist.

Workaround:
Use 'tmsh load sys config verify', without specifying a specific file.

850997-1 : 'SNMPD' no longer shows up in the list of daemons on the high availability (HA) Fail-safe GUI page

Component: TMOS

Symptoms:
The SNMPD daemon no longer shows up in the list of daemons on the high availability (HA) Fail-safe GUI page.

Conditions:
Viewing the page at:

System :: High Availability : Fail-safe : System

Impact:
Unable to configure the high availability (HA) settings for the snmpd high availability (HA) daemon through the GUI.

Workaround:
Use TMSH to modify the snmpd high availability (HA) settings.

850633-1 : Policy with % in name cannot be exported

Component: Application Security Manager

Symptoms:
Policies with characters that are encoded with urlencode in name cannot be exported in GUI

Conditions:
Policies has characters that are encoded with urlencode in name

Impact:
Policy cannot be exported in GUI

Workaround:
Most policies can be cloned, and during clone user can select name without special characters. Then cloned policy can be exported.

850357-1 : LDAP - tmsh cannot add config to nslcd.conf

Component: TMOS

Symptoms:
nslcd comes as a dependency package for the nss-pam-ldapd and nslcd.conf file contains the configuration information for running nslcd.
tmsh does not support modification of nslcd.conf to include some options.

Conditions:
This would be encountered only if you wanted to do modify the nslcd configurations

Impact:
You are unable to modify nslcd configuration for some options.
This prevents the ability to use certain ldap-based remote authentication techniques.

Workaround:
Modify nslcd.conf file to include configuration changes manually and restart the nslcd daemon with systemctl restart nslcd

850117-2 : Autodosd crash after assigning dos profile with custom signatures to a virtual server

Component: Advanced Firewall Manager

Symptoms:
When attaching dos profile to virtual server, it will crash occasionally.

Conditions:
-- AFM is provisioned
-- Performing profile attachment

Impact:
Autodosd crashes and restarts.

849349-5 : Adding a new option to disable CSP header modification in bot defense/dosl7 via sys db

Component: Application Security Manager

Symptoms:
Web app flow might fail resulting in JavaScript errors related to CSP policy

Conditions:
-- ASM provisioned.
-- Bot-Defense or DoS Application profile assigned to a virtual server.
-- The backend server sends CSP headers.

Impact:
Web application flow might fail.

Workaround:
Attach an iRule:

when HTTP_REQUEST {
    set csp 0
}
when HTTP_RESPONSE {
    if { [HTTP::header exists Content-Security-Policy] } {
        set csp "[HTTP::header values Content-Security-Policy]"
    }
}
when HTTP_RESPONSE_RELEASE {
    if { $csp != 0 } {
        HTTP::header replace Content-Security-Policy $csp
    }
    set csp 0
}

849269-1 : High CPU usage after Inheritance page opened

Component: Application Security Manager

Symptoms:
After you visit the Policy Inheritance page, there is high CPU usage in the browser until you leave the policies page.

Conditions:
This occurs when opening the Policy Inheritance page for a policy that does not have a parent.

Impact:
High CPU usage by browser

Workaround:
N/A

848921-1 : Config sync failure when importing a Json policy

Component: Application Security Manager

Symptoms:
Importing a json policy to a BIG-IP that is in a device group machine causes errors on the other devices, which leads to a sync failure.

Conditions:
This can occur when a json policy is imported to a BIG-IP that is in a device group

Impact:
Config sync fails.

848757-1 : Link between 'API protection profile' and 'Security Policy' is not restored after UCS upload

Component: Application Security Manager

Symptoms:
Link between 'API protection profile' and 'Security Policy' created with swagger based 'API protection profile' preserved in UCS file. This link is not restored after UCS upload.

Conditions:
UCS upload.

Impact:
'API protection profile' has no link to related security policy.

Workaround:
None.

848681-7 : Disabling the LCD on a VIPRION causes blade status lights to turn amber

Component: TMOS

Symptoms:
When the LCD is disabled or turned off on a VIPRION system, the blade status lights turn amber.

Conditions:
You can cause this to occur by running the command:
tmsh modify sys db platform.chassis.lcd value disable

Impact:
Blade status lights change to amber, even if nothing is wrong with the system.

Workaround:
None.

848673-1 : Portal Access message event has wrong origin if message originates from split tunneled frame

Component: Access Policy Manager

Symptoms:
Unexpected exceptions, and other issues can be visible dependent on web-application internal logic.

Conditions:
Portal Access message hat originates from a split tunneled frame; for example, in a split tunneling configuration:

    REWRITE
      *://*
    BYPASS
      *://*twitter*
      *://*twimg*

Impact:
Web-application does not operate as expected. Messages sent from the iframe with src=http://twitter.com to the main window with URL http://my.company.com can cause exception when receiving data.

Workaround:
Use a custom iRule to handle this situation.

848217-4 : Portal Access: default port encoded in rewritten url, need to be removed from host header in request to backend

Component: Access Policy Manager

Symptoms:
Bad response, or invalid response for request in which default port was used in web-application.

Conditions:
Default port is used in the url, back end application does not expect the default port in the request's Host header.

Impact:
Web-application misfunction

Workaround:
Custom workaround iRule can be used to remove default port form rewritten url.

847109-1 : Very large policies could have problems with re-import

Component: Access Policy Manager

Symptoms:
Policy exported and then imported with Syntax Error:

Import error: Syntax Error:(/shared/tmp/apmom/import/p--11-02--07-34-31--208.conf at line: 976) "src-subnet" unexpected argument.

Conditions:
Elements in policy are very large (e.g., 100 KB).

Note: This is a rarely occurring issue.

Impact:
Unable to import policy.

Workaround:
None.

847105-2 : The bigip_gtm.conf is reverted to default after rebooting with license expired★

Component: Global Traffic Manager (DNS)

Symptoms:
The bigip_gtm.conf is reverted to default after rebooting (or upgrading to a newer BIG-IP software release).

Conditions:
-- The BIG-IP license is expired prior to the reboot or upgrade.
-- GTM is configured.

Impact:
The GTM configuration (in /config/bigip_gtm.conf) information is lost in the newly installed boot location.

Workaround:
Renew license before reboot. Always reboot with valid license.

If you have already rebooted or upgraded with an expired license, and your configuration has been lost, you can restore it using the following procedure.

1. Re-activate the BIG-IP license
2. Restore bigip_gtm.conf from the auto-created backup (.bak) file:
cp /config/bigip_gtm.conf.bak /config/bigip_gtm.conf
3. Load the replaced config:
tmsh load sys config gtm-only

If this is a the result of a software upgrade, and the .bak file is not available or has been overwritten, you can boot back to the previous volume and re-copy the configuration from there (cpcfg or via the GUI) before rebooting back to the upgraded software release.

846977-1 : TCP:collect validation changed in 12.0.0: the first argument can no longer be zero★

Component: Local Traffic Manager

Symptoms:
Validation for TCP::collect was changed in BIG-IP software v12.0.0 (with the introduction of JET specifications). Prior to 12.0.0, there were no restrictions on the values of the two arguments. As of 12.0.0, the first argument ('collect_bytes') must be a positive integer, and the second argument ('skip_bytes) must be a non-negative integer.

Occurrences of 'TCP::collect 0 0' in iRules experience issues when upgrading to a newer version, producing warnings in LTM log:

/Common/T_collect:9: warning: [The following errors were not caught before. Please correct the script in order to avoid future disruption. "invalid argument 0; expected syntax spec:"136 17][TCP::collect 0 0].

Conditions:
-- Using a version of BIG-IP software earlier than 12.0.0, configure an iRule with a 'TCP::collect 0 0' command.
-- Upgrade to 12.0.0 or later.

Impact:
Warning in the LTM log file. The iRules containing 0 values do not function as expected. There is no other impact.

Workaround:
Change 'TCP::collect 0 0' to a value other than 0 (zero) in any iRules before or after upgrade.

846873-4 : Deleting and re-adding the last virtual server that references a plugin profile in a single transaction causes traffic failure

Component: Local Traffic Manager

Symptoms:
Traffic fails to pass through a virtual server.

Conditions:
-- Virtual server is removed and a new one is added in a single transaction.
-- Virtual server references a plugin profile.

For example, create a CLI transaction:
- delete ltm virtual vs_http
- create ltm virtual vs_https destination 1.1.1.1:443 vlans-enabled profiles replace-all-with { http ntlm oneconnect }
- submit cli transaction

Impact:
Traffic failure on the new virtual server.

Workaround:
Create a virtual server that does not accept any traffic, but keeps the NTLM MPI plugin channel alive:

tmsh create ltm virtual workaround destination 1.1.1.1:1 profiles replace-all-with { http oneconnect ntlm } vlans-enabled vlans none && tmsh save sys config

846521-7 : Config script does not refresh management address entry properly when alternating between dynamic and static

Component: TMOS

Symptoms:
Config script does not refresh management address entry properly when alternating between dynamic (DHCP) and static configuration.

Conditions:
- Management IP assignment is changed from dynamic (DHCP) to static.
- Same IP address is configured, as previously received from DHCP server.

Impact:
Remote management access is lost after DHCP lease expires.

Workaround:
Restart BIG-IP after changing the management IP address.

846141-1 : Unable to use Rest API to manage GTM pool members that have an pipe symbol '|' in the server name.

Component: TMOS

Symptoms:
Rest API returns 404 'Object not found"' error when attempting direct access to pool member that has pipe symbol '|' in the server or virtual server name.

Conditions:
An iControl/REST call to a pool member that has a virtual server on the Server whose name contains a | character in the server or virtual server name.

Impact:
The iControl/REST call cannot manage a pool member associated with a virtual server or server whose name contains a | character.

Workaround:
Rename the server or virtual server to a name that does not contains the | character.

845933-1 : Unused parameters remain after modifying the swagger file of a policy

Component: Application Security Manager

Symptoms:
After you update the swagger file of a policy, some parameters that are not defined in the updated swagger may remain in the policy.

Conditions:
1. Policy contains global parameters that were added manually
2. All the URL parameters are deleted in the new swagger file

Impact:
Traffic to these parameters will not raise a violation ILLEGAL PARAMETER as expected

Workaround:
The leftover parameters need to be removed manually

845545 : Potential name collision for client-ssl profile named 'clientssl-quic'

Component: Local Traffic Manager

Symptoms:
This release includes a new base client-ssl profile for use by QUIC virtual servers. If an existing client-ssl profile named 'clientssl-quic' exists, it will be overwritten by the new built-in profile after upgrading.

Conditions:
The system to be upgraded has an existing client-ssl profile named 'clientssl-quic'.

Impact:
The existing profile will be overwritten by the new built-in profile.

Workaround:
Rename the existing profile prior to upgrade.

844925-3 : Command 'tmsh save /sys config' fails to save the configuration and hangs

Component: TMOS

Symptoms:
The 'tmsh save /sys config' command hangs and fails to save the configuration if there is a memory allocation failure when creating the reply.

Conditions:
-- A large number of iApps: in the thousands.
-- Each iApp has tens of variables.

Impact:
Because tmsh cannot save the configuration, if the BIG-IP system reboots, any changes made since the last successful save are lost.

Workaround:
Run the command:
tmsh save /sys config binary

This does not save the configuration to files in /config, but it does at least allow you to save the binary configuration.

That way, you can reboot the BIG-IP system and not lose the configuration.

Note: It is possible that a reboot will provide sufficient memory to save to configuration files. It depends on the configuration of virtual memory at the time of the save. It is possible that every time you want to save the config, you must use the binary option.

844597-4 : AVR analytics is reporting null domain name for a dns query

Component: Advanced Firewall Manager

Symptoms:
AVR analytics is reporting null domain name for a DNS query if DNS DoS profile is attached to a virtual server, but the profile does not have the matching type vector enabled to the query type.

Conditions:
-- DNS DoS profile is attached to a virtual server.
-- The query type in the DNS query does not match an enabled DNS vector on the DNS profile.

Impact:
DNS domain name is reported as NULL

Workaround:
Enable the matching type vector on the DNS DoS profile.

844373-1 : Learning suggestion details layout broken in some browsers

Component: Application Security Manager

Symptoms:
One of the suggestion details is placed incorrectly, out of alighment.

Conditions:
This occurs when you open the details for learning suggestion, e.g., based on refinement.

Impact:
Refinement title is out of line.

Workaround:
Use a different browser, if needed.

844337-4 : Tcl error log improvement for node command

Component: Local Traffic Manager

Symptoms:
Because of the Tcl error, connection gets reset and reports an error:

err tmm[18774]: 01220001:3: TCL error: /Common/test2- bad port in node <addr> <port> cmdTCL error (line 43) (line 43) invoked from within "node 172.x.x.x IP [LB::server port]"

Conditions:
Using node command under pre-load-balancing iRule events.

Impact:
Unclear port values in Tcl error message.

Workaround:
None.

844169-1 : TMSH context-sensitive help for diameter session profile is missing some descriptions

Component: Service Provider

Symptoms:
The tmsh context-sensitive help content for the following diameter session attributes is missing:
-- respond-unroutable
-- retransmission-action
-- retransmission-queue-limit-high
-- retransmission-queue-limit-low
-- retransmission-queue-max-bytes
-- retransmission-queue-max-messages

Conditions:
When attempting in tmsh to list a diameter session profile followed by a question mark for context-sensitive help- for example:
list ltm message-routing diameter profile session <sess-name> ?

Impact:
The specified attributes are no described.

Workaround:
These are the missing descriptions:

-- respond-unroutable: When selected (enabled), messages that do not match any known route will be transformed into an error answer message and sent to the originator of the request. When disabled, unroutable request messages are routed back to the connection where they came from. The default value is disabled.

-- retransmission-action: Specifies the action performed when retransmission has been triggered for a request message. The options are:
  1) Disabled: Retransmission is disabled. This is the default action.
  2) Busy: An answer message is generated with a TOO_BUSY result code and returned to the originator of the request.
  3) Unable: An answer message is generated with an UNABLE_TO_DELIVER result code and returned to the originator of the request.
  4) Retransmit: The request message will be retransmitted.

-- retransmission-queue-limit-high: Specifies the high watermark for the retransmission queue (in percentage). If the retransmission queue exceeds this limit, the transport window will begin closing. A value of 0 will disable closing the transport window. Valid range from 0 to 100. The default value is 90.

-- retransmission-queue-limit-low: Specifies the low watermark for the retransmission queue (in percentage). If the retransmission queue drops below this limit, the transport window will reopen. Valid range from 0 to 100. The default value is 60.

-- retransmission-queue-max-bytes: Specifies the maximum number of bytes that can be stored in a connections retransmission queue. A value of 0 will disable this limit. The default value is 131072 bytes.

-- retransmission-queue-max-messages: Specifies the maximum number of messages that can be stored in a connections retransmission queue. A value of 0 will disable this limit. The default value is 1024 messages.

843661-1 : TMSH allows you to specify the 'add-on-keys' option when running the 'revoke sys license' command

Component: TMOS

Symptoms:
TMSH currently allows you to specify the 'add-on-keys' option when running the 'revoke sys license' command, but the option is not honored and the entire license is revoked.

Conditions:
-- BIG-IP license and add-on license are installed.
-- Attempt to revoke the system license with 'add-on-keys' as an option.

Impact:
Add-on-keys option is ignored, and the entire license is revoked instead.

Workaround:
None.

843317-3 : The iRules LX workspace imported with incorrect SELinux contexts

Component: Local Traffic Manager

Symptoms:
Files imported from iRules LX workspace may have incorrect SELinux contexts such as abrt_var_cache_t.

This can cause reloading the workspace to fail with errors:

01070079: failed to create workspace archive ... Return code {2}

Conditions:
Importing the iRules LX workspace.

Impact:
Workspace cannot be imported

Workaround:
As a workaround you can run the following command on the folders to restore the context:
restorecon -R -v

842669-3 : Syslog-ng / systemd-journald cannot handle logs with embedded newlines, write trailing content to /var/log/user.log

Component: TMOS

Symptoms:
Systemd-journald cannot handle logs with embedded newlines, write trailing content to /var/log/user.log. Bare ')' being logged to /var/log/user.log., for example:

cat /var/log/user.log
[...]: Deleting file /shared/core/*.core.*
[...]: Deleting file /shared/core/*.core.*
[...] )
[...] )

Conditions:
This occurs when the system logs syslog messages containing embedded newlines, such as

- The cron process tries and fails to send an email because of output about a cron script.
- Modify syslog include configuration
- Apply ASM policy configuration change
- GTM.debugprobelogging output from big3d

Impact:
The logging subsystem accepts syslog messages with embedded newlines, and writes first line to the appropriate file, and remaining lines to /var/log/user.log.

Workaround:
View the logs using journalctl -D /var/log/journal

842425-1 : Mirrored connections on standby are never removed in certain configurations

Component: Local Traffic Manager

Symptoms:
When the conditions are met, if the interface of the connection on the active system changes, the peer does not get notified of this, and that connection persists on the standby system even after the connection on the active system has been destroyed.

Conditions:
-- Using mirrored connections in a DSC.
-- Not using auto-lasthop with mirrored connections.
-- VLAN-keyed connections are enabled.

Impact:
Leaking connections on the standby system.

Workaround:
You can use either of the following workarounds:

-- Use auto-lasthop with mirrored connections.

-- Depending on the BIG-IP system's configuration, disabling VLAN-keyed connections may resolve this.

842265-1 : Create policy: trusted IP addresses from template are not shown

Component: Application Security Manager

Symptoms:
If there are trusted IP addresses in the selected template, they are not shown in GUI during policy creation

Conditions:
Create user-defined template from policy with trusted IP addresses.

Impact:
If you manually enter the same IP addresses that were in template, you may get an error message after policy creation

Workaround:
None.

842193-1 : Scriptd coring while running f5.automated_backup script

Component: iApp Technology

Symptoms:
When the iApp, f5.automated_backup, script is terminated due to the max-script-run-time, the script still continues and finishes, sometimes with scriptd coring and posting error messages in /var/log/ltm:

-- info logger[17173]: f5.automated_backup iApp autobackup: STARTED
-- info logger[17175]: f5.automated_backup iApp autobackup: pem.f5lab.com_20191004.ucs GENERATING

-- err scriptd[13532]: 014f0004:3: script has exceeded its time to live, terminating the script <------ after 20 secs, it continues even after the scriptd core.

-- notice sod[3235]: 01140041:5: Killing /usr/bin/scriptd pid 13532.
-- warning sod[3235]: 01140029:4: high availability (HA) daemon_heartbeat scriptd fails action is restart.
-- info logger[19370]: f5.automated_backup iApp autobackup: pem.f5lab.com_20191004.ucs SAVED LOCALLY
(/var/local/ucs)
-- info logger[19372]: f5.automated_backup iApp autobackup: FINISHED

Conditions:
Configure the iApp application with f5.automated_backup template to do auto-backup at regular intervals.

Impact:
Scriptd core.

Workaround:
Increasing the sys scriptd max-script-run-time higher then the default of 300 seconds might be helpful if the higher timeout allows the script to complete.

For example, if the script is saving a UCS and the save takes 400 seconds, then increasing the max-script-run-time to 430 seconds would allow the script to finish and would work around this issue.

842149-2 : Verified Accept for SSL Orchestrator

Component: Access Policy Manager

Symptoms:
You are unable to configure Verified Accept on SSL Orchestrator.

Conditions:
-- SSL Orchestrator in use .
-- A TCP profile is in use and it contains the Verified Accept flag.

Impact:
No connectivity over SSL Orchestrator.

Workaround:
None.

842137-3 : Keys cannot be created on module protected partitions when strict FIPS mode is set

Component: Local Traffic Manager

Symptoms:
When FIPS mode is set to use FIPS 140-2 Level 3 protection, new keys cannot be created in the module's protected partition

Conditions:
-- FIPS 140-2 Level 3 protection is configured on a NetHSM partition
-- You attempt to create a FIPS key using that partition

Impact:
New Keys cannot be created

Workaround:
Here are all the steps to generate a new netHSM key called "workaround" and install it into the BIG-IP config:

1.

[root@bigip1::Active:Standalone] config # fipskey.nethsm --genkey -o workaround -c module
WARNING: fipskey.nethsm will soon be deprecated for use with Thales. Please switch to using tmsh commands instead.
tmsh commands...

Generate Key:
tmsh create sys crypto key <key_name> security-type nethsm [gen-certificate|gen-csr] ...
For an exhaustive list of options, please consult F5's tmsh documentation.
Generate CSR for existing key:
tmsh create sys crypto csr <csr_name> key <key name> ...
For an exhaustive list of options, please consult F5's tmsh documentation.
Generate Self-Signed Certificate for existing key:
tmsh create sys crypto cert <cert_name> key <key name> ...
For an exhaustive list of options, please consult F5's tmsh documentation.
Delete Key:
tmsh delete sys crypto key <keyname>

str[cd /shared/tmp && /opt/nfast/bin/generatekey -b pkcs11 certreq=yes selfcert=yes protect=module size=2048 embedsavefile="workaround" plainname="workaround" digest=sha256]
key generation parameters:
operation Operation to perform generate
application Application pkcs11
protect Protected by module
verify Verify security of key yes
type Key type RSA
size Key size 2048
pubexp Public exponent for RSA key (hex)
embedsavefile Filename to write key to workaround
plainname Key name workaround
x509country Country code
x509province State or province
x509locality City or locality
x509org Organisation
x509orgunit Organisation unit
x509dnscommon Domain name
x509email Email address
nvram Blob in NVRAM (needs ACS) no
digest Digest to sign cert req with sha256

Key successfully generated.
Path to key: /opt/nfast/kmdata/local/key_pkcs11_ua882aa9fadee7e440772cb6686358f4b283922622
Starting synchronisation, task ID 5de83486.6e9e32d7f367eaf4
Directory listing failed: No such file or directory

2. (this is to confirm the key is present with the label "workaround"

[root@bigip1::Active:Standalone] config # nfkminfo -l

Keys with module protection:

key_pkcs11_ua882aa9fadee7e440772cb6686358f4b283922622 `workaround'

Keys protected by cardsets:
...

3.
[root@bigip1::Active:Standalone] config # tmsh install sys crypto key workaround from-nethsm

4. (install public certificate)
[root@bigip1::Active:Standalone] config # tmsh install sys crypto cert workaround from-local-file /config/ssl/ssl.crt/workaround

842013-3 : ASM Configuration is Lost on License Reactivation★

Component: Application Security Manager

Symptoms:
After re-activating a BIG-IP license, if the configuration fails to load and reverts to a base config load, the ASM policy config contains 'default' or 'stub' policies, even after fixing the error that caused the configuration to fail to load.

Conditions:
1) A parsing error exists in the BIG-IP config such that 'tmsh load sys config verify' would fail
2) There is a license reactivation or the configuration is reloaded

Impact:
ASM policy configuration is lost and all policies are reverted to empty 'stubs'

Workaround:
In the case of license re-activation/before upgrade:

   Run the command "tmsh load sys config verify" prior to license activation on ASM units to be sure that the config will pass parsing and avoid the fallback to base configuration load.

   In a case of booting the system into the new version:

   Option 1:

      1. Using the steps in either K4423 or K8465, fix the issue that was preventing the config to load.
      2. Reload the config from the fixed UCS file using the command in K13132.

   Option 2:

      1. Roll back to the old version.
      2. Fix the issue that was preventing the config to load.
      3. Before activating the Boot Location of the new version at System >> Software Management : Boot Locations, make sure to set the option Install Configuration to Yes. see: K64400324

   Option 3: If one of the high availability (HA) units successfully upgraded, then use config-sync to push the working config to the failing unit.

841985-5 : TSUI GUI stuck for the same session during long actions

Component: Application Security Manager

Symptoms:
The GUI becomes unresponsive when you perform an operation that takes a long time (e.g., Attack Signatures update).

Conditions:
Long-running task is performed, such as export/import/update signatures.

Impact:
GUI is unresponsive for that session.

Workaround:
If you need to continue working during long task is performed, you can log in via another browser.

841721-2 : BWC::policy detach appears to run, but BWC control is still enabled

Component: TMOS

Symptoms:
The dynamic BWC policy can be attached from iRules but not detached. No error occurs when BWC::policy detach is run, but the detached policy continues to work.

Conditions:
-- Dynamic BWC policy for a HTTP request URI during session.
-- Running BWC::policy detach.

Impact:
The detached policy continues to work.

Workaround:
None.

841369-3 : HTTP monitor GUI displays incorrect green status information

Component: Local Traffic Manager

Symptoms:
LTM HTTP monitor GUI displays incorrect green status when related pool is down.

TMSH shows correct information

Conditions:
LTM HTTP monitor destination port does not match with pool member port.

Impact:
LTM HTTP marks the node down, but the Instances tab of the monitor in the GUI reports the status as green

Workaround:
You can use either of the following workarounds:
-- Use TMSH to get correct info.
-- Ensure that LTM HTTP monitor destination port does match pool member port.

841341-6 : IP forwarding virtual server does not pick up any traffic if destination address is shared.

Component: Local Traffic Manager

Symptoms:
Virtual servers do not forward any traffic but the SNAT does.

Conditions:
-- Multiple wildcard IP forwarding virtual servers with the same destination address.
-- SNAT is configured.

Impact:
IP forwarding virtual server does not pick up any traffic.

Workaround:
Delete and then re-create virtual servers.

841285-1 : Sometimes apply policy is stuck in Applying state

Component: Application Security Manager

Symptoms:
The word "Applying" is displayed long after the policy has been applied.

Conditions:
This can occur when applying policies.

Impact:
It appears that Apply policy is stuck, when it is not.

Workaround:
Refresh the page, or look for the log entry in /var/log/asm

ASMConfig change: Apply Policy Task Apply Policy Task [update]: Status was set to COMPLETED.

840785-1 : Update documented examples for REST::send to use valid REST endpoints

Component: Local Traffic Manager

Symptoms:
The documented examples for REST::send refers to REST endpoints that are not valid.

Conditions:
Viewing the documentation at https://clouddocs.f5.com/api/irules/REST__send.html.

Impact:
Invalid examples lead to potential confusion.

Workaround:
Use valid REST endpoints, documented at https://clouddocs.f5.com/api/icontrol-rest/APIRef.html.

840769-2 : Having more than one IKE-Peer version value results in upgrade failure★

Component: TMOS

Symptoms:
When a 'net ipsec ike-peer' object has the version attribute with more than one value, upgrading to version 15.1.0 results in a failed upgrade.

Conditions:
The version attribute has two values, in this example, 'v1' and 'v2.'

net ipsec ike-peer test {
    my-cert-file default.crt
    my-cert-key-file default.key
    my-id-value 38.38.38.64
    peers-id-value 38.38.38.38
    phase1-auth-method rsa-signature
    phase1-encrypt-algorithm 3des
    phase1-hash-algorithm sha256
    prf sha256
    remote-address 38.38.38.38
    traffic-selector { /Common/homer2 }
    version { v1 v2 }
}

Impact:
Upgrading to version 15.1.0, which allows only one value for the version attribute, results in a failed upgrade/config load error.

Workaround:
Before upgrading, modify your config so that the version attribute has only one value for the version attribute.

840257-4 : Portal Access: HTML iframe sandbox attribute is not supported

Component: Access Policy Manager

Symptoms:
Issues with content displayed in iframes.

Conditions:
Using an iframe with the sandbox attribute in a web application.

Impact:
The web application does not work as expected.

Workaround:
Use an iRule as a workaround. Although the exact content of the iRule is strongly dependent on the web application, you can use the following iRule as a good example that can be customized:

when REWRITE_REQUEST_DONE {
  if {
    HTTP::path] ends_with "/CUSOM_PATH_TO_JS_FILE"
  } {
    REWRITE::post_process 1
  }

}

when REWRITE_RESPONSE_DONE {

  while {true} {
    set str { sandbox="}
    set strt [string first $str [REWRITE::payload]]
    set str_len [string length $str]

    if {
      $strt > 0
      and
      $strt < [expr [REWRITE::payload length] - $str_len]
    } {
      REWRITE::payload replace $strt $str_len { sandbo1="}
    } else {
      break
    }
  }

}

840249-2 : With BIG-IP as a SAML IdP, important diagnostic information is not logged

Component: Access Policy Manager

Symptoms:
When the BIG-IP system is configured as a SAML IdP and processes an SAML Authentication Request, if it does not find the appropriate SAML SP connector, it does not log relevant information such as the Issuer, ACS _URL, and Protocol binding from the Authentication request.

Conditions:
This occurs when a BIG-IP system is configured as a SAML IdP and processes a SAML Authentication request, but does not find an appropriate SP configuration that matches the information provided in the SAML Authentication request.

Impact:
Troubleshooting the issue and fixing the SAML configuration is difficult since there is no relevant information in the error log.

Workaround:
Enable the log level for SSO to 'Debug', and capture the logs at the debug level to troubleshoot further.

839509-1 : Incorrect inheritance treatment in Response and Blocking Pages page

Component: Application Security Manager

Symptoms:
Deception Response Pages is not inherited, but if common response pages are inherited, you are unable to save changes.

Conditions:
-- Deception Response Pages features licensed.
-- Parent policy selected with inheritance of response pages.

Impact:
Deception Response Pages cannot be modified.

Workaround:
None.

839389-1 : TMM can crash when connecting to IVS under extreme overload

Component: Service Provider

Symptoms:
TMM might crash while attempting to connect internally to an internal virtual server (IVS) and the connection setup cannot be completed due to internal factors.

Conditions:
-- Extreme overload such that TMM is out of memory, or some other internal condition that prevents connection setup.
-- Connection to an internal virtual server is attempted.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

839361-6 : iRule 'drop' command does not drop packets when used in DNS_RESPONSE

Component: Global Traffic Manager (DNS)

Symptoms:
The iRule 'drop' command may not drop a DNS response when called under DNS_RESPONSE event.

Conditions:
iRule drop is used under DNS_RESPONSE event.

Impact:
DNS response may be improperly forwarded to the client.

Workaround:
Use DNS::drop instead.

839141-1 : Issue with 'Multiple of' validation of numeric values

Component: Application Security Manager

Symptoms:
'Multiple of' validation of numeric values may not be correct in some scenarios.

Conditions:
-- Create default policy from API Security template.
-- Create default decimal parameter with 'Multiple of'=5.
-- Send request to /index.php?param=0.

Impact:
'Multiple of' validation of numeric values does not block as expected.

Workaround:
None.

838925-7 : Rewrite URI translation profile can cause connection reset while processing malformed CSS content

Component: TMOS

Symptoms:
Malformed CSS where one of the style rules is missing a closing brace could cause LTM Rewrite profile to stop processing file or reset connection.

Conditions:
-- LTM Rewrite (URI translation) profile is attached to virtual server.
-- Content rewriting is enabled in Rewrite profile settings.
-- CSS file contains style rule with missing closing brace.

Impact:
URLs are not modified within affected files, starting from the missing closing brace. Intermittent connection resets occur.

Workaround:
Before rewriting, insert the missing symbol into CSS content either directly on the backend server or with an iRule.

838405-3 : Listener traffic-group may not be updated properly when spanning is in use.

Component: Local Traffic Manager

Symptoms:
BIG-IP may fail to update configuration of a virtual server when disabling or enabling spanning on the virtual address.

Conditions:
Spanning is disabled or enabled on a virtual address.

Impact:
Disabling or enabling spanning on a virtual address has no effect on the virtual-server configuration.

Depending on the configuration, virtual server may or may not forward the traffic when expected.

Workaround:
Enable/Disable spanning together with changing a traffic-group:

> modify ltm virtual-address 0.0.0.0 traffic-group none spanning enabled
> modify ltm virtual-address 0.0.0.0 traffic-group traffic-group-1 spanning enabled

838353-1 : MQTT monitor is not working in route domain.

Component: Local Traffic Manager

Symptoms:
MQTT monitor fails when non-default route domains are used.

Conditions:
-When a non-default route domain is configured for a pool member
-mqtt monitor in use

Impact:
Mqtt monitor does not work in route domain.

838337-1 : The BIG-IP system's time zone database does not reflect recent changes implemented by Brazil in regard to DST.

Component: TMOS

Symptoms:
In 2019, Brazil cancelled DST (Daylight Saving Time) and is now on standard time indefinitely. The BIG-IP system's time zone database needs to be updated to reflect this change.

Conditions:
None.

Impact:
BIG-IP systems configured to use "America/Sao_Paul" (or other applicable Brazilian localities) will still apply DST. Hence time will spring forward and backward on previously designated dates.

This will have no impact to application traffic handled by the BIG-IP system. However, logs, alerts, reports, cron jobs, etc. will use incorrect time.

Note: You can inspect the time changes your system is due to apply by running the following command from the BIG-IP system's advanced shell (bash):

zdump -v <timezone>

For example:

zdump -v America/Sao_Paulo

Workaround:
As a workaround, you can set the BIG-IP system's time zone to that of a different country with the same UTC offset and already not observing DST.

For example, instead of using "America/Sao_Paul", you could use "America/Buenos_Aires" to obtain the same result.

838305-7 : BIG-IP may create multiple connections for packets that should belong to a single flow.

Component: Local Traffic Manager

Symptoms:
Due to a known issue, BIG-IP may create multiple connections for packets that should belong to a single flow. These connections will stay in the connection table until the idle timeout is reached. These connections can be used for forwarding the traffic.

Conditions:
BIG-IP may create multiple connections for packets that should belong to a single flow when both following conditions are true:
- Packets are coming at a very high rate from the network.
- Flow handling these packets is torn down.

Impact:
This might result in packets from the client being handled by one flow and packets from the server being handled by a different flow.

837481-7 : SNMPv3 pass phrases should not be synced between high availability (HA) devices as that are based on each devices unique engineID

Component: TMOS

Symptoms:
SNMPv3 fails to read authenticated or encrypted messages to all but one of the members of a Config Sync group.

Conditions:
Using SNMPv3 to read or receive Traps from high availability (HA) pairs.

Impact:
SNMPv3 can only work for one member of a configsync group.
Configuring passwords on one device, makes that device work, but other members of the config sync group will now fail.

Workaround:
- check "Authoritative (security) engineID for SNMPv3" is not synced (mostly code released since 2019)
engineID needs to be unique per device

- Modify /defaults/config_base.conf to set sync to "no" and check that these do not sync
We must NOT sync these parameters as they need to match the individual device engineID

            display-name "Authoritative (security) engineID for SNMPv3"
            display-name "Authentication pass phrase for SNMPv3 messages"
            display-name "Privacy pass phrase used for encrypted SNMPV3 messages"
            display-name "User's passphrase"
            display-name "Privacy passphrase"

### Mount usr as rw see see K11302
mount -o remount,rw /usr
pico /defaults/config_base.conf
# use Control-w to search for the display names above
# change "configsyncd yes" to "configsyncd no" if necessary in each location
# use Control-x y to exit with saving
# Restore usr as ro
mount -o remount,ro /usr
tmsh load sys config

Then once they are not syncing over, you can create v3 on each device using the same pass phrase as your SNMPv3 manager is using

tmsh modify sys snmp users add { v3snmp { auth-protocol sha privacy-protocol aes username mikev3 auth-password password3 privacy-password password3} }
tmsh modify sys snmp users modify { v3snmp { security-level auth-privacy access rw } }

Then each device should respond OK to query for that same pass phrase

snmpwalk -v 3 localhost -a sha -x aes -A password3 -X password3 -u mikev3 -l authpriv

For more information about SNMP, see the following articles.
K15681: Customizing the SNMP v3 engineID
K6821: SNMP v3 fails if the SNMP engine ID is not unique
K3727: Configuring custom SNMP traps

837341-1 : Response and Blocking Pages page: Deception Response pages should not be shown in parent policy

Component: Application Security Manager

Symptoms:
Deception Response pages shown and editable in parent policy.

Conditions:
-- Deception Response Pages feature is licensed and enabled.
-- You are editing the parent policy.

Impact:
Deception Response pages cannot be updated from the parent policy, thus any update of response pages fails with error.

Workaround:
None.

835517-1 : After upgrading BIG-IP software and resetting HA, gossip may show 'UNPAIRED'★

Component: Device Management

Symptoms:
After upgrading BIG-IP software and reconfiguring high availability (HA), gossip may show 'UNPAIRED' and the REST endpoint /resolver/device-groups/tm-shared-all-big-ips/devices/ may show only one device.

Conditions:
-- This has been observed during upgrade from 14.x.x to 15.x.x.
-- Reconfigure HA.
-- View gossip results and REST endpoint output.

Impact:
The gossip output shows 'UNPAIRED', and the REST endpoint reports only one decide. SSL Orchestrator does not work as expected

Workaround:
If gossip shows 'UNPAIRED' after upgrade, you may need to do following at both devices:

1. Delete existing device information:
restcurl -X DELETE shared/resolver/device-groups/tm-shared-all-big-ips/devices

2. Force update:
bigstart restart restjavad
restcurl -X POST -d '{}' tm/shared/bigip-failover-state

835505-1 : Tmsh crash potentially related to NGFIPS SDK

Component: Local Traffic Manager

Symptoms:
Tmsh crash occurs rarely. The NGFIPS SDK may generate a core as well.

Conditions:
The exact conditions that trigger this are unknown.

It can be encountered when running the following tmsh command:

tmsh -a show sys crypto fips key field-fmt include-public-keys all-properties

Impact:
Tmsh may crash. You are exited from tmsh if you were using it as a shell.

Workaround:
None.

835285-1 : Client browser traffic through APM SWG transparent proxy using captive portal might get reset.

Component: Access Policy Manager

Symptoms:
Client browser traffic through APM Secure Web Gateway is being reset by APM SWG.

Conditions:
-- APM SWG transparent proxy is configured with captive portal. -- Client browser sends redirect to original URI on a TCP connection that was opened before access policy completion on captive portal.

Impact:
The connection is reset.

834217-7 : Some init-rwnd and client-mss combinations may result in sub-optimal advertised TCP window.

Component: Local Traffic Manager

Symptoms:
Due to a known issue BIG-IP may advertise sub-optimal window size.

Conditions:
Result of (init-rwnd * client-mss) is greater than maximum window size (65,535).

Impact:
Degraded TCP performance.

Workaround:
Do not use init-rwnd values that might result in values higher than maximum window size (65,535).

Assuming MSS of 1480, the maximum value of init-rwnd is:
65535/1480 = 44.

832805-2 : AVR should make sure file permissions are correct (tmstat_tables.xml)

Component: Application Visibility and Reporting

Symptoms:
By building rpm of avrd, few cfg files get wrong set of permissions (executable)

Conditions:
Any build of avrd rpm

Impact:
Apparently not having the right set of permissions can lead to system halt

Workaround:
Change permissions on file:

# chmod -x /etc/avr/tmstat_tables.xml

832665-1 : The version of open-vm-tools included with BIG-IP Virtual Edition is 10.0.5

Component: TMOS

Symptoms:
Features supported in newer versions of open-vm-tools will not be available.

Conditions:
This issue may be seen when running in VMware environments.

Impact:
Features that require a later version of open-vm-tools will not be available.

Workaround:
None.

832661 : Default provisioning for all instances is LTM nominal★

Component: TMOS

Symptoms:
Prior to configuring an AWS WAF (AWAF) PAYG cloud instance, you may see errors related to an unlicensed LTM module. This occurs because the default provisioning for all instances is LTM nominal. However, the license associated with an AWAF PAYG cloud instance does not enable the LTM feature. As a result, the default provisioning for an unconfigured AWAF PAYG cloud instance will be incompatible with the PAYG license.

Conditions:
-- This issue relates only to AWAF PAYG cloud instances.
-- Not using the onboarding/templates to configure/provision the instance prior to use.

Impact:
Licensing error messages may be observed before the AWAF cloud instance is configured/provisioned. The functionality works as expected, however, so you can ignore these messages.

Workaround:
The recommended workflow for all cloud instances is to use onboarding/templates to configure/provision the instance prior to use. If this workflow is followed, any provisioning errors associated with the default provisioning are cleared prior to usage.

832233-1 : The iRule regexp command issues an incorrect warning

Component: Local Traffic Manager

Symptoms:
At validation time, mcpd issues a warning similar to the following:

warning mcpd[7175]: 01071859:4: Warning generated : /Common/test1:2: warning: ["\1" has no meaning. Did you mean "\\1" or "1"?][{(test) (\1)}]

Conditions:
Use arguments such as "\1", "\2", "\3" etc., in command regexp.

Impact:
A warning is generated, "\1" has no meaning, even though it is valid.

Workaround:
Ignore the warning.

832133-1 : In-TMM monitors fail to match certain binary data in the response from the server.

Component: Local Traffic Manager

Symptoms:
Pool members are incorrectly marked DOWN by a monitor. The pool members send the expected response to the probe, but the BIG-IP system still marks them DOWN.

Conditions:
This issue occurs when all of the following conditions are met:

-- In-TMM monitoring is enabled on the system (the 'bigd.tmm' db key is set to 'enable'; note this is set to 'disable' by default).

-- One (or more) of your TCP or HTTP monitors specifies a receive string using HEX encoding, in order to match binary data in the server's response.

-- Depending on the HEX values specified (currently values in the range of 0x80-0xBF are believed to be affected), response matching fails.

Impact:
Objects that are meant to be marked UP are marked DOWN. As a result, no load balancing occurs to affected resources.

Workaround:
You can use either of the following workarounds:

-- Disable in-TMM monitoring by setting 'bigd.tmm' to 'disable'.

-- Do not monitor the application through a binary response (if the application allows it).

831821-1 : Corrupted DAG packets causes bcm56xxd core on VCMP host

Component: TMOS

Symptoms:
On VCMP host, bcm56xxd crashes when it receives a corrupted DAG packets.

Conditions:
Unknown.

Impact:
Device goes offline, traffic disruption.

831105-2 : Session timeout in diadb entry is updated to 180 on unsuccessful transaction

Component: Service Provider

Symptoms:
Diameter MRF persist records are not deleted at session timeout.

Conditions:
-- Diameter MRF in use
-- An unsuccessful CCR transaction occurs

Impact:
Unsuccessful transaction attempts do not time out and remain in the session database.

Workaround:
An iRule can be used to reset session timeout in diadb upon an unsuccessful transaction through MR_FAILED by executing DIAMETER::persist reset.

829657-3 : Possible TMM crash with a multi-IP PEM subscriber configured with more than 16 IP addresses

Component: Policy Enforcement Manager

Symptoms:
TMM crash.

Conditions:
PEM configured with a multi-IP subscriber with more than 16 IP addresses.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not create a PEM subscriber with more than 16 IP addresses.

829653-2 : Memory leak due to session context not freed

Component: Policy Enforcement Manager

Symptoms:
Memory increases slowly

Conditions:
A PEM iRule times out

Impact:
Memory could be exhausted depending on the frequency of the command timeouts

829029-1 : Adding multiple user-defined Signatures via REST in quick succession may end with duplicate key database error

Component: Application Security Manager

Symptoms:
Adding multiple user-defined Signatures via REST in quick succession may end with duplicate key database error.

Conditions:
At least two REST calls adding Attack Signatures and/or Attack Signature Sets which are sent in quick succession to the BIG-IP system.

Impact:
REST calls after the first may not be successful, resulting in failure to modify configuration as desired.

Workaround:
Retry the subsequent REST calls.

829021-3 : BIG-IP does not account a presence of http2 profile when response payload is modified

Component: Local Traffic Manager

Symptoms:
The BIG-IP system might close a connection when the HTTP response payload is modified and sent without chunking encoding. If communication goes over an HTTP connection, the BIG-IP system closes a connection to tell a client that a response is served. With HTTP/2 connections, an unsized response is marked with the END_STREAM flag. This case is not accounted for, and the BIG-IP system closes HTTP communication with a server anyway.

Conditions:
-- A virtual server has an http/2 profile configured on the client side.
-- There are other profiles configured which can modify the HTTP response payload.

Impact:
The BIG-IP system wastes resources not reusing a server side HTTP connection when an unsized response is sent over an HTTP/2 connection to a client.

Workaround:
None.

828761-1 : APM OAuth - Auth Server attached iRule works inconsistently

Component: Access Policy Manager

Symptoms:
The iRule attached to the OAuth Resource Server (RS) is not triggered when the traffic hits the virtual server.

Conditions:
The issue occurs during a reboot of the BIG-IP device containing an OAuth server config and an attached iRule, or when the iRule is initially assigned to the OAuth Server.

Impact:
OAuth scope check agent fails with 'HTTP error 503': as the iRule attached to the RS virtual server is not triggered.

Workaround:
For existing OAuth servers with the iRule attached, modify the iRule, for example, adding a log. This makes the iRule trigger when it is initially attached or loaded.

828625-3 : User shouldn't be able to configure two identical traffic selectors

Component: TMOS

Symptoms:
Config load fails by issuing "tmsh load sys config verify"
01070734:3: Configuration error: Duplicate traffic selector is not allowed
Unexpected Error: Validating configuration process failed.

Conditions:
Duplicate IP addresses on multiple traffic-selectors attached to different ipsec-policies.

Impact:
Config load will fail after a reboot

Workaround:
Delete duplicate traffic-selectors.

827393-2 : In rare cases tmm crash is observed when using APM as RDG proxy.

Component: Access Policy Manager

Symptoms:
Tmm may crash when APM is configured as an RDG proxy to access Microsoft remote desktops and applications.

Conditions:
APM is used as RDG proxy

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

827293-3 : TMM may crash running remote tcpdump

Component: TMOS

Symptoms:
TMM crashes.

Conditions:
-- Tcpdump is run with the --remote-dest parameter.
-- The destination address is routed via a VLAN, whose cmp-hash setting has been changed from default to src-ip.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not route remote tcpdump operations via a VLAN with non-default cmp-hash settings.

827209-4 : HSB transmit lockup on i4600

Component: TMOS

Symptoms:
TMM shows HSB transmit lockup message and cored.

Conditions:
-- Using an i4600 platform.
-- Other conditions under which this occurs are unknown.

Impact:
Disruption to processing traffic on the BIG-IP system.

Workaround:
None.

827021-7 : MCP update message may be lost when primary blade changes in chassis

Component: TMOS

Symptoms:
In a VIPRION chassis, when the Primary blade is disabled (intentionally or due to an unexpected loss of functionality) and a new Primary blade is selected, there is a brief window of time during which status messages forwarded from MCPD on a Secondary blade to MCPD on the Primary blade might be dropped, possibly resulting in an incorrect view of the state of configured objects.

Conditions:
This problem may occur under the following conditions:
-- The state of a blade-local object/resources (such as a network interface or trunk) changes.
-- There is a high load on MCPD (for example, due to configuration reload on the new Primary blade) which delays processing of some MCPD actions.

Impact:
This problem may result in the state of blade-local objects (such as interfaces or trunks) being seen and reported incorrectly across the blades in the chassis, or on one or more specific blades (Primary, Secondary) in the chassis.

For example, if loss of the Primary blade results in one or more interfaces in a trunk being marked down by LACPD on a specific blade, resulting changes in trunk/member status may not be propagated correctly to the Primary blade, and from there to other Secondary blades.

Workaround:
None.

826313-6 : Error: Media type is incompatible with other trunk members★

Component: TMOS

Symptoms:
Loading system configuration is failing after upgrade with an error message

01070619:3: Interface 5.0 media type is incompatible with other trunk members

Conditions:
-- Trunk interface created in BIG-IP version 12.3.4.
-- Trunk interfaces have different speeds (e.g. 100Mb interfaces and 1Gb interfaces)
-- Load the configuration after upgrading from v12.1.3.4 to v12.1.3.5.

Impact:
The system configuration is failing to load.

Workaround:
If you encounter this error, manually fix all trunks to only use interfaces of the same speed, and then load the configuration.

826189-3 : The WebUI incorrectly allows the dns64-prefix option found in DNS profiles to include a subnet mask.

Component: TMOS

Symptoms:
The input validation performed by the BIG-IP system WebUI incorrectly allows the dns64-prefix option found in DNS profiles to include a subnet mask.

The WebUI should allow users to specify only a prefix (for example, 2001:db8:0:0:0:0:0:0 or 2001:db8::); however, it incorrectly allows users to specify a subnet mask too (for example, 2001:db8:0:0:0:0:0:0/96 or 2001:db8::/96).

In contrast, the TMSH utility correctly enforces values for this option.

Conditions:
The BIG-IP Administrator creates or modifies a DNS profile using the WebUI, and specifies an IP/SM value for the dns64-prefix option.

Impact:
Upon performing DNS64, TMM returns incorrect DNS answers that do not use the specified prefix. For example, if the Administrator specifies 2001:db8:0:0:0:0:0:0/96 as the prefix, and if the IPv4 address of the requested resource is 198.51.100.1, DNS64 returns ::198.51.100.1 instead of 2001:db8::c633:6401. This prevents end-user clients from reaching the intended resource.

The impact described in this section only applies to BIG-IP versions 14.1.0 and later. Previous BIG-IP versions also had this WebUI validation issue, but despite this TMM still returned the correct DNS answer.

Workaround:
When configuring this option using the WebUI, do not specify a subnet mask.

825245-4 : SSL::enable does not work for server side ssl

Component: Local Traffic Manager

Symptoms:
When SSL::enable is issued in an iRule, for example in the HTTP Request event, it will not enable the server side profile if the server side profile is disabled.

Conditions:
An HTTP profile is configured on a virtual, and the server-ssl profile on the same virtual is disabled.

Impact:
The connection will close instead of completing.

Workaround:
Do not use a disabled server-ssl profile in this situation.

824809-6 : bcm56xxd watchdog restart

Component: TMOS

Symptoms:
During initialization of very large configurations it is possible that the watchdog timer will fire and reset the bcm56xxd driver.

Conditions:
System configuration with very large number of objects being loaded.

Impact:
The driver restarts.

824437-7 : Chaining a standard virtual server and an ipother virtual server together can crash TMM.

Component: Local Traffic Manager

Symptoms:
TMM crashes with a SIGFPE and restarts. The TMM logs contain the following panic message:

Assertion "xbuf_delete_until successful" failed.

Conditions:
This issue occurs when the following conditions are met:

-- The system has been configured with a standard virtual server and an Any IP (ipother) virtual server chained together. This can be done explicitly using an iRule that features the 'virtual' command to connect the two virtual servers, or implicitly with certain APM configurations.

-- The pool member on the server-side asks this specific virtual server configuration on the BIG-IP system to retransmit data.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Ensure the target virtual server in the chain configuration does not use the ipother profile.

824433-3 : Added HTTP2 and HTTP3 request/response statistic fields to the HTTP profile

Component: Local Traffic Manager

Symptoms:
The HTTP/1.1 request/response statistic fields in the HTTP profile are incremented incorrectly when HTTP2 traffic is encountered.

There is not currently a way to view the HTTP2 and HTTP3 request/response stats on the HTTP profile.

Conditions:
-- Client or server sends HTTP2 request/response.
-- Using GUI, TMSH, iControl (SOAP), or SNMP.

Impact:
Incorrect HTTP/1.1 request/response statistic values are present in the HTTP profile when HTTP2 traffic is encountered.

Workaround:
None.

824205-3 : GUI displays error when a virtual server is modified if it is using an address-list

Component: TMOS

Symptoms:
When you modify a virtual server, the GUI returns an error similar to the following:

01b90011:3: Virtual Server /Common/vs2_udp's Traffic Matching Criteria /Common/vs2_udp_VS_TMC_OBJ illegally shares destination address, source address, service port, and ip-protocol with Virtual Server /Common/vs1_tcp destination address, source address, service port.

Conditions:
This occurs when either of the following occur:

-- When renaming the virtual server.
-- When changing the address-list attribute.

Impact:
Cannot update virtual configuration with new value.

Workaround:
None.

823825-7 : Renaming HA VLAN can disrupt state-mirror connection

Component: Local Traffic Manager

Symptoms:
If the VLAN that services the state mirror connection between BIG-IP systems is renamed, it can cause a disruption of the state mirror connection. It can also lead to an eventual crash.

Conditions:
Renaming the VLAN that services the state mirror connection between BIG-IP systems in an high availability (HA) configuration.

Impact:
System might crash eventually.

Workaround:
Do not rename the VLAN that services the state mirror connection between BIG-IP systems in an HA configuration.

822393-3 : Prober pool selected on server or data center not being displayed after selection in Internet Explorer

Component: Global Traffic Manager (DNS)

Symptoms:
Selected prober pool not visible on server or data center in Internet Explorer or Edge

Conditions:
This occurs when you have a prober pool configured for a data center or server, and you are viewing them in the GUI using Internet Explorer or Edge.

Impact:
The prober pool is not displayed.

Workaround:
Use Chrome or Firefox as browser

822253-1 : After starting up, mcpd may have defunct child "run" and "xargs" processes

Component: TMOS

Symptoms:
After starting up, mcpd may have defunct child "run" and "xargs" processes

Conditions:
Slow disk storage or large configuration files.

Impact:
Minimal; some zombie processes are created.

821589-1 : DNSSEC does not insert NSEC3 records for NXDOMAIN responses

Component: Global Traffic Manager (DNS)

Symptoms:
DNSSEC does not insert NSEC3 records for NXDOMAIN responses.

Conditions:
-- "process-xfr yes" is set for the dns profile associated with the listener;
And
-- There is no "Zone Transfer Clients" nameserver configured for that zone.
And
-- There is no wideip configured.

Impact:
DNSSEC does not respond NSEC3 for non-existent domain.

Workaround:
1. Change this setting for dns profile from "process-xfr yes" to "process-xfr no";
Or
2. Add a nameserver for "Zone Transfer Clients" of that zone.
Or
3. Add a wideip.

819457-1 : LTM high availability (HA) sync should not sync GTM zone configuration

Component: TMOS

Symptoms:
LTM high availability (HA) sync group are syncing GTM zone configuration changes.

Conditions:
1. BIG-IPs has both LTM and GTM provisioned.
2. The two BIG-IPs are inside one LTM sync group.

Impact:
GTM zone files are accidentally modified.

819429-5 : Unable to scp to device after upgrade: path not allowed

Component: TMOS

Symptoms:
Cannot scp copy a file to the BIG-IP system. The system reports an error:
path not allowed

Conditions:
Issue occurs when both conditions are present:
-- The BIG-IP user has 'shell tmsh' or 'shell none' access.
-- The scp destination is the real path target (not listed in the 'allow' list) of a symbolic link that is listed in the scp 'allow' list (/config/ssh/scp.whitelist).

For example:
scp to /var/tmp succeeds.
scp to /shared/tmp fails with 'path not allowed'.

Impact:
Cannot copy files to a path present under whitelist.

Workaround:
Use the explicitly listed (symlink) path as the scp destination.

819261-4 : Log HSB registers when parts of the device becomes unresponsive

Component: TMOS

Symptoms:
Part of the HSB becomes unresponsive, and there is no logging of additional registers to assist in diagnosing the failure.

Conditions:
It is unknown under what conditions the HSB becomes unresponsive.

Impact:
Limited visibility into the HSB state when it becomes unresponsive.

Workaround:
None.

819233-3 : Ldbutil utility ignores '--instance' option if '--list' option is specified

Component: Access Policy Manager

Symptoms:
When running ldbutil utility, if the '--list' option is specified, then the '--instance' option has no effect. All the local users will be listed.

Conditions:
When both '--list' and '--instance' options are specified.

Impact:
The output lists all the local users and not limiting to the '--instance' option given.

Workaround:
None.

818789-7 : Setting ssl profile to none in https monitor, not setting Ciphers to DEFAULT as in serverssl Profile

Component: Local Traffic Manager

Symptoms:
With in-tmm monitoring enabled (or sys db bigd tmm set to enable) and with https monitor's ssl-profile set to none, the expected behavior is to send ciphers in ClientHello based on default serverssl profile as mentioned in GUI help for https monitor.

Conditions:
Configure HTTPS Monitor with ssl-profile "None".

Impact:
Ciphers are not exchanged as expected in the ClientHello Packets

Workaround:
Configure HTTPS Monitor without ssl-profile option, default serverssl profile will be used

818777-2 : MCPD error - Trouble allocating MAC address for VLAN object

Component: TMOS

Symptoms:
You see the following errors in /var/log/ltm:

err mcpd[8985]: 0107071c:3: Trouble allocating mac address for vlan object /Common/external.

Conditions:
Conditions under which this occurs are unknown.

Impact:
There is no known impact to the system as a result of this log message.

Workaround:
If this reoccurs, you can try force reloading mcpd.

For more information, see K13030: Forcing the mcpd process to reload the BIG-IP configuration, available at https://support.f5.com/csp/article/K13030.

818737-3 : Improve error message if user did not select a address-list or port list in the GUI

Component: TMOS

Symptoms:
In the GUI, the Virtual Server screen displays the available address-lists or port lists for source address, but there is no clarity on whether the options are selected or available.

Conditions:
-- Virtual server's source address section.

Impact:
If you do not make a selection and try to create the Virtual Server, an error occurs: An error has occurred while trying to process your request.

Workaround:
Click to select the address-list of port-list displayed as source address for Virtual Server.

818721-3 : Virtual address can be deleted while it is in use by an address-list.

Component: Local Traffic Manager

Symptoms:
-- The virtual-address (and virtual server) will no longer work.

-- The BIG-IP won't answer ARP requests for it.

-- Loading the config again or performing similar operations will not re-create the virtual-address.

Conditions:
-- A virtual address is deleted while it is in use by an address list and virtual server.
-- MCPD is restarted (or the unit rebooted, etc.).

Impact:
Traffic processing is disrupted

818705-1 : afm_cmi.py daemon can cause very high BIG-IP CPU utilization(>90%)

Component: Advanced Firewall Manager

Symptoms:
The AFM Auto threshold and behavioral dos historical data synchronization process consumes greater than 90% CPU. This affects TMM performance and some outages may occur.

Conditions:
This occurs in both high availability (HA) and standalone configurations. In both cases "MCPD" issues were reported. (Delay in response or the daemon crashed)

Impact:
TMM performance is affected and outages may occur.

Workaround:
Kill the AFM data synchronization process:

kill -9 afm_cmi.py

818505-1 : Modifying a virtual address with an iControl PUT command causes the netmask to always change to IPv6 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff

Component: TMOS

Symptoms:
Using an iControl PUT command to modify a virtual address will change that address's netmask to ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff.

Conditions:
Modifying a virtual address using an iControl PUT command.

Impact:
An unintentional change to the virtual address's netmask.

Workaround:
Two options:
-- Use a PATCH command instead of a PUT command.
-- Always specify the netmask explicitly when making changes.

818297-3 : OVSDB-server daemon lost permission to certs due to SELinux issue, causing SSL connection failure

Component: TMOS

Symptoms:
OVSDB-server fails to make SSL connections when Selinux is enforced.

In /var/log/openvswitch/ovsdb-server.log:

...|00012|stream_ssl|ERR|/config/filestore/files_d/Common_d/certificate_d/:Common:myCert_2468_1: stat failed (Permission denied).

Conditions:
-- Navigate to System :: Configuration : OVSDB.
-- Add cert and keys.

Impact:
Permission denied, SSL connection failure.

Workaround:
Step 1: Check openvswitch SELinux denial:
# audit2allow -w -a
Example output:
type=AVC msg=audit(1566915298.607:32958): avc: denied { search } for pid=18966 comm="ovsdb-server" name="/" dev="dm-7" ino=2 scontext=system_u:system_r:openvswitch_t:s0 tcontext=system_u:object_r:f5config_t:s0 tclass=dir
    Was caused by:
        Missing type enforcement (TE) allow rule.

        You can use audit2allow to generate a loadable module to allow this access.

Step 2: Find openvswitch components that need Linux policy additions:
# audit2allow -a
Example output:
#============= openvswitch_t ==============
allow openvswitch_t f5config_t:dir search;
allow openvswitch_t f5filestore_t:dir search;
allow openvswitch_t f5filestore_t:file { getattr open read };

Step 3: Modify the policy to allow access to the component openvswitch_t:
# audit2allow -a -M openvswitch_t

Step 4: Apply the policy:
# semodule -i openvswitch_t.pp

818069-6 : GUI hangs when iApp produces error message

Component: iApp Technology

Symptoms:
If lengthy Tcl errors are displayed in the GUI while creating an iApp, the GUI can hang.

Conditions:
-- Creating an iApp that contains a syntax error.
-- A large error message is emitted.

Impact:
GUI hangs.

Workaround:
Restart the tomcat process:
tmsh restart sys service tomcat

817989-1 : Cannot change managemnet IP from GUI

Component: TMOS

Symptoms:
You are unable to change the management IP from the GUI

Conditions:
This is encountered when using the GUI to change the management IP address via the System :: Platform page.

Impact:
The GUI indicates that it will redirect you to the new IP address. You will eventually be redirected but the management IP address is not changed on the BIG-IP device.

Workaround:
Use tmsh to create the management IP. This will overwrite the old one.

Example:
create /sys management-ip [ip address/prefixlen]

To view the management IP configurations

tmsh list /sys management-ip

817369-2 : TCP, UDP, and SCTP proxy converts to GEO proxy when georedundancy profile is attached with virtual server.

Component: Service Provider

Symptoms:
When a georedundancy profile is attached to a TCP, UDP, and SCTP virtual server, proxy does not convert to GEO proxy.

Conditions:
Attach georedundancy profile to a standard TCP, UDP, or SCTP virtual server.

Impact:
Unable to convert proxy to GEO proxy when georedundancy profile is attached with TCP, UDP and SCTP virtual

Workaround:
None.

817137-1 : SSO setting for Portal Access resources in webtop sections cannot be updated.

Component: Access Policy Manager

Symptoms:
SSO setting for Portal Access (PA) resource assigned to any webtop section cannot be updated due to the following error:

No such atomic attribute:name in class:webtop_section_webtop_section_resource

Configuration with such a resource cannot be transferred to another BIG-IP system due to the same error.

Conditions:
BIG-IP system configuration with the following objects:
-- SSO configuration (any type).
-- PA resource with resource item.
-- The webtop section with the PA resource.
-- Full webtop.
-- Per-session access policy with resource assignment agent which assigns webtop, webtop section, and PA resource.

Impact:
Configuration cannot be updated or transferred.

Workaround:
Delete webtop sections from the configuration and re-create them after transfer / upgrade / update process.

817089-3 : Incorrect source MAC address with hardware acceleration (ePVA) and asymmetric routing

Component: TMOS

Symptoms:
Connections that are hardware accelerated and that use asymmetric routing may use the wrong MAC address for return traffic. This can be observed by looking at a packet capture.

Conditions:
Hardware acceleration is enabled (ePVA/fastL4) with asymmetric routing.

Impact:
The return traffic has the wrong source MAC address. This may affect packet forwarding depending on the configuration.

Workaround:
Disable HW acceleration.

816953-1 : RST_STREAM is sent in closed state on a serverside stream in HTTP/2 full proxy

Component: Local Traffic Manager

Symptoms:
RST_STREAM is sent on a serverside stream in closing state in HTTP/2 full proxy.

Conditions:
-- HTTP/2 clientside and serverside profiles are attached to the virtual server.
-- HTTP and httprouter profiles are attached to the virtual server.
-- Race between clientside and serverside closing, where clientside closes faster.

Impact:
RST_STREAM is sent on a stream in closed state.

816353-3 : Unknown trap OID 1.3.6.1.2.1.47.2.0.1.0.1

Component: TMOS

Symptoms:
During re-licensing or license reload, an unknown trap OID 1.3.6.1.2.1.47.2.0.1.0.1 may be sent.

Conditions:
Occurs during license reload or reactivation.

Impact:
After a license reload, the unknown trap can be seen like the following:

run "tcpdump -ni mgmt port 162 -vvvv &":

12:01:59.883331 IP (tos 0x0, ttl 64, id 47411, offset 0, flags [DF], proto UDP (17), length 101)
10.248.136.179.55540 > 172.28.8.68.snmptrap: [bad udp cksum 0x486e -> 0xd7b8!] { SNMPv2c { V2Trap(58) R=1205683810 .1.3.6.1.2.1.1.3.0=1775555 .1.3.6.1.6.3.1.1.4.1.0=.1.3.6.1.2.1.47.2.0.1.0.1 } }

816277-1 : Extremely long nameserver name causes GUI Error

Component: Global Traffic Manager (DNS)

Symptoms:
Extremely long nameserver and tsig key name gives an error in the GUI while viewing:

-- Bad Request. Your browser sent a request that this server could not understand.
-- Request-URI Too Long. The requested URL's length exceeds the capacity limit for this server.

Conditions:
When nameserver and tsig key name length exceeds 3300 characters.

Impact:
The GUI reports an error when you try to view them. Youa re unable to view nameserver and tsig keys having extremely long names.

Workaround:
Create nameserver and tsig keys with shorter names, preferably fewer than 255 characters.

815405-6 : GUI update of Child FastL4 profile overwrites CLI-only customized settings (options that are not available in GUI)

Component: Local Traffic Manager

Symptoms:
Child FastL4 profile is being reset after clicking Update from GUI.

Conditions:
-- Create child SSL FastL4, profile inheriting settings from a parent FastL4 profile.
-- From the command line, change any of the CLI-only visible settings in the child FastL4 profile (e.g., pva-acceleration, explicit-flow-migration, etc.), and save the changes.
-- In the GUI, click the Update button in the child FastL4 profile without making any change.

Impact:
The operation overwrites the CLI changes made in the child profile, and inherits those values from the parent settings instead.

Workaround:
None.

814353-6 : Pool member silently changed to user-disabled from monitor-disabled

Component: TMOS

Symptoms:
When a node (Disabled by Monitor) is updated via the member screen (no change to configuration required), the status changes from:

'Available (Disabled) pool members is available, monitor disabled'.

To:

'Available (Disabled), pool member is available, user disabled'.

Conditions:
-- A node disabled by Monitor.
-- Go to GUI LTM pool member and navigate into the monitor disabled member, then update without any configuration change.

Impact:
Pool member goes to 'user-disabled'.

Workaround:
To recover, re-enable the pool member.

814273-1 : Multicast route entries are not populating to tmm after failover

Component: TMOS

Symptoms:
Multicast route entries are not populating in tmm after failover. ZebOS has the multicast entries, but tmm does not.

Conditions:
-- High Availability (HA) configured, with multicast traffic.
-- A failover occurs.

Impact:
Multicast traffic does not pass through properly

Workaround:
Clear the multicast entries in ZebOS manually:
> clear ip mroute *
> clear ip igmp group

813969-5 : Network DoS reporting events as 'not dropped' while in fact, events are dropped

Component: Advanced Firewall Manager

Symptoms:
Logs/Tmctl shows packet dropped whereas AVR shows Action as 'Allowed' and not 'Dropped'.

Conditions:
-- AFM configured.
-- AFM passes the message to AVR for reporting.

Impact:
The operation does not update the drop flag. It appears from AVR Reporting that packets are allowed, but actually they are dropped

Workaround:
There is no workaround at this time.

813221-5 : Autoconf continually changes a virtual IP object when virtual IP/port on LTM is not in sync

Component: Global Traffic Manager (DNS)

Symptoms:
The virtual server for an LTM redundant peer is continually updated with its IP/Port changing back and forth between two values, leading to perpetual GTM configuration syncs.

Conditions:
The destination IP:port of the virtual server on the LTM is not in sync between the LTM devices in the device-group.

Impact:
The virtual server is flapping status between "blue" and 'green', and its destination IP:port is changing between a correct value and an incorrect one. Traffic will be impacted.

Workaround:
Perform a configsync on the LTM device-group that owns the virtual server.

812705-3 : 'translate-address disabled' setting for LTM virtual server does not have any effect with iRules for NAT64 traffic

Component: Carrier-Grade NAT

Symptoms:
IPv4 Packets are forwarded to server-side with destination address changed to LTM pool member address even when 'translate-address disabled' is configured on a NAT64 virtual server.

Conditions:
-- Create iRules for LTM pool selection.
-- Configure the NAT64 virtual server with 'translate-address disabled'.
-- Send IPv6 client request accessing the NAT64 virtual server.

Impact:
Server-side IPv4 packets are forwarded with destination address modified. The server-side packets do not reach the intended destination, resulting in connection failures.

Workaround:
Use normal LTM pool selection instead of iRules-based, LTM pool selection.

812693-3 : Connection in FIN_WAIT_2 state may fail to be removed

Component: Local Traffic Manager

Symptoms:
If a connection that has a fully closed client-side, but a server-side still in FIN_WAIT_2, receives a SYN matching the same connflow, the idle time is reset. This can result in the fin-wait-2-timeout never being reached. The SYN will be responded to with a RST - 'TCP Closed'

Conditions:
- Client side connection has been fully closed. This may occur if a client SSL profile is in use and an 'Encrypted Alert' has been received.
- Server side has sent a FIN which has been ACK'd, but no FIN has been received from the server.
- SYN received matching the existing connflow before the FIN-WAIT-2-timeout has been reached (300 default).

Impact:
Connection may fail to be removed in a timely manner. New connection attempts are RST with 'TCP Closed'

Workaround:
You can use either of the following:
-- Ensure servers are sending FIN's so as not to leave the connection in a FIN_WAIT_2 state.

-- Mitigate the issue by lowering the FIN-WAIT-2-timeout to a smaller value, e.g., FIN-WAIT-2-timeout 10.

810613-5 : GUI Login History hides informative message about max number of lines exceeded

Component: TMOS

Symptoms:
When there are more than 10000 lines in /var/log/secure* files, visiting System :: Logins :: [History|Summary] in the GUI shows 'No Entries' instead of the actual error message about the large number of lines.

Conditions:
If there are more than 10000 lines in /var/log/secure* files.

Impact:
GUI displays 'No Entries' instead of the actual error message.

Workaround:
-- Via the CLI by specifying the number of lines:
tmsh show sys log security lines 15000 | less
-- Delete the large amount of secure files from /var/log/.

810533-2 : SSL Handshakes may fail with valid SNI when SNI required is true but no Server Name is specified in the profile

Component: Local Traffic Manager

Symptoms:
When the client attempts to connect, even when sending the proper SNI extension, the BIG-IP system resets the connection after the client hello.

Conditions:
-- SNI Required set to true.
-- No Server Name configured in the client SSL profile.

Impact:
SSL connections with valid SNI are closed, and the client cannot connect. With generic alerts enabled, you will see 'SSL alert number 40'. This is because the system does not read the server names from the SAN extension within the certificate.

Workaround:
Specify a valid server name in the server name field of the client SSL profile.

809657-7 : HA Group score not computed correctly for an unmonitored pool when mcpd starts

Component: TMOS

Symptoms:
When mcpd starts up, unmonitored pools in an high availability (HA) group do not contribute to the HA group's score.

Conditions:
-- HA group configured with at least one pool.
-- At least one of the pools assigned to the HA group is not using monitoring.
-- mcpd is starting up (due to bigstart restart, or a reboot, etc.).

Impact:
Incorrect HA Group score.

Workaround:
Remove the unmonitored pools from the HA group and re-add them.

809089-1 : TMM crash after sessiondb ref_cnt overflow

Component: TMOS

Symptoms:
Log message that indicates this issue may happen:
session_reply_multi: ERROR: unable to send session reply: ERR_BOUNDS
[...] valid s_entry->ref_cnt

Conditions:
-- Specific MRF configuration where all 500 session entries are owned by a single tmm.

-- High rate of session lookups with a lot of entries returned.

Note: This issue does not affect HTTP/2 MRF configurations.

Impact:
TMM core: the program terminates with signal SIGSEGV, Segmentation fault. Traffic disrupted while tmm restarts.

Workaround:
1. Change MRF configuration to spread session lookups across multiple tmms.
2. Reduce the sub-key entries to far below 500.

808913-2 : Big3d cannot log the full XML buffer data

Component: Global Traffic Manager (DNS)

Symptoms:
Big3d cannot log the full XML buffer data:

-- notice big3d[12212]: 012b600d:5: Probe from ::ffff:11.11.1.21:45011: len 883/buffer = <vip>.

Conditions:
The gtm.debugprobelogging variable is enabled.

Impact:
Not able to debug big3d monitoring issues efficiently.

Workaround:
None.

808801-4 : AVRD crash when configured to send data externally

Component: Application Visibility and Reporting

Symptoms:
AVRD can crash repeatedly when configured to send telemetry data externally.

Conditions:
-- AVR is configured to send telemetry data to an external source (like connection with BIG-IQ).
-- Large number of config objects in the system, such as virtual servers and pool members.

Impact:
AVRD process crashes, and telemetry data is not collected.

Workaround:
Split the configuration updates into smaller batches

808481-5 : Hertfordshire county missing from GTM Region list

Component: TMOS

Symptoms:
Hertfordshire county is missing from Regions in the United Kingdom Country/State list.

Conditions:
-- Creating a GTM region record.
-- Attempting to select Hertfordshire county for the United Kingdom.

Impact:
Cannot select Hertfordshire county from United Kingdom Country/State list.

Workaround:
None.

808277-6 : Root's crontab file may become empty

Component: TMOS

Symptoms:
Under low-disk conditions for the /var/ filesystem, BIG-IP system processes may incorrectly update root's crontab file (/var/spool/cron/root). This results in the file contents being removed; i.e., the file is empty.

Conditions:
Low disk space on the /var filesystem.

Impact:
System and user entries in root's crontab file stop executing.

Workaround:
None.

808017-5 : When using a variable as the only parameter to the iRule persist command, the iRule validation fails

Component: Local Traffic Manager

Symptoms:
When using a variable as the only parameter to the iRule persist command, for example:

when HTTP_REQUEST {
set persistence none
persist $persistence
}

The iRule validation fails with the message:

Persistence mode (Cookie) called out in rule <rule name> requires a corresponding persistence profile for virtual server

Conditions:
Using a variable as the only parameter to the iRule persist command.

Impact:
Validation fails and hence the system config cannot be loaded.

Workaround:
The first parameter is one of pre-defined action keywords, so use plain text.

807945-3 : Loading UCS file for the first time not updating MCP DB

Component: TMOS

Symptoms:
MCP DB is not updated after loading a UCS file.

Conditions:
1. Save UCS with 'flow-control' default value 'tx-rx'.
2. Modify the value from 'rx-tx' to 'none'.
3. Save another UCS with modified value.
4. Load the UCS with default value, everything works fine here.
5. Load the UCS with the modified value.

Impact:
The 'flow-control' setting gets changed. The functionality does not work after the first UCS load as MCP DB is not getting updated.

Workaround:
Load the same UCS again.

The MCP DB gets updated properly.

807837-2 : Upgrade fails when client-ssl inherits proxy-ca-key/cert with error message: Client SSL profile (/Common/child): must have at least one set of CA type cert-key-chain.★

Component: TMOS

Symptoms:
Upgrade failure when loading configuration file or ucs from older version, with the below error message against child client-ssl profile:

Client SSL profile (/Common/child): must have at least one set of CA type cert-key-chain.

Conditions:
The issue occurs when all of the following conditions are met:
-- When upgrading from an older version (earlier than 14.0.0) to a newer version (14.1.0 or later).
-- The configuration has a child client SSL profile that inherits from a parent client SSL profile.
-- The parent SSL profile has SSL forward proxy enabled and proxy-ca-cert/proxy-ca-key configured.

Impact:
Unable to upgrade the system with old configuration.

Workaround:
You can workaround this issue using the following procedure:

1. Manually edit /config/bigip.conf to add the following lines:
proxy-ca-cert /Common/rsa.crt
proxy-ca-key /Common/rsa.key

2. Reload the configuration using the following command:
tmsh load sys config

Here is an example:

ltm profile client-ssl /Common/child {
    app-service none
    cert /Common/default.crt
    cert-key-chain {
        default {
            cert /Common/default.crt
            key /Common/default.key
        }
    }
    chain none
    defaults-from /Common/parent
    inherit-certkeychain true
    key /Common/default.key
    passphrase none
    proxy-ca-cert /Common/rsa.crt <===== add this line
    proxy-ca-key /Common/rsa.key <===== add this line

}

807569-2 : Requests fail to load when backend server overrides request cookies and Bot Defense is used

Component: Application Security Manager

Symptoms:
When Bot Defense is used on the backend server that overrides request cookies, requests to non-HTML resources may fail, or may receive the whitepage JavaScript challenge. An example is when a back-end server responds with a Set-Cookie header containing empty values for each cookie request cookie it does not recognize.

Conditions:
-- Bot Defense is enabled.
-- Backend server is overriding the Bot Defense cookies with the TS prefix.

Impact:
Some URLs fail to load following the JavaScript challenge.

Workaround:
Use an iRule to strip the TSPD_101 cookie from the request before forwarding it to the backend:

when HTTP_REQUEST_RELEASE {
HTTP::cookie remove "TSPD_101"
}

807397-3 : IRules ending with a comment cause config verification to fail

Component: Local Traffic Manager

Symptoms:
'tmsh load sys config verify' reports error messages for a signed iRule:
-- 01071485:3: iRule (/Common/example) content does not match the signature.
-- Unexpected Error: Validating configuration process failed.

Conditions:
-- Have an iRule which ends in a comment.
-- iRule is signed.
-- Run the command:
tmsh load sys config verify

Impact:
'tmsh load sys config verify' reports an error when there should be none. Configuration validation fails.

Workaround:
Delete or move any comments that are at the end of the iRule, and validate the configuration again.

807309-3 : Incorrect Active/Standby status in CLI Prompt after failover test

Component: TMOS

Symptoms:
After running 'promptstatusd -y' to check current failover status, it displays an incorrect Active/Standby status in the CLI prompt.

Conditions:
This occurs under the following conditions:

1. Modify the db variable: bigdb failover.state.
2. Check that /var/prompt/ps1 and CLI prompt reflect the setting.
2. Reboot the BIG-IP system.

Impact:
Status shown in the prompt does not change.

Workaround:
Do not run 'promptstatusd -y' command manually.

The db variable 'failover.state is a status-reporting variable. The system does not report status manually set to something other than the actual status.

Note: 'promptstatusd' is not a BIG-IP user command, it is a daemon. It is highly unlikely that manually running this command will produce information that is useful or relevant to the status being sought.

806881-6 : Loading the configuration may not set the virtual server enabled status correctly

Component: TMOS

Symptoms:
When loading the configuration, if the virtual address is disabled but the virtual server is enabled, the virtual server may still pass traffic.

Conditions:
-- Loading the configuration.
-- A virtual server's virtual address is disabled.

Impact:
Virtual servers unexpectedly process traffic.

Workaround:
Manually re-enable and disable the virtual address.

806809-2 : JWT Claim value without quotes is invalid

Component: Access Policy Manager

Symptoms:
JSON payload is invalid since claims are generated without quotes(")

Conditions:
BIG-IP creates JWT claim value without quotes when scope is not openid.

Impact:
Token is invalid.

Workaround:
Replace claim type 'string' with 'custom' adding quotes after backslash.

apm oauth oauth-claim /Common/uid {
  claim-name uid
  claim-type custom
  claim-value "\"%{session.custom.name:noconv}\""
}

805561-3 : Change of pool configuration in OneConnect environment can impact active traffic

Component: Local Traffic Manager

Symptoms:
In OneConnect environments, when the default pool is updated for the first time, active connections reconnect to new pool members. Further update to pool configuration has no impact on traffic.

Conditions:
-- Virtual server configured with OneConnect profile.
-- Default pool is updated when active connections are present.

Impact:
Active traffic disrupted.

Workaround:
None.

805325-6 : tmsh help text contains a reference to bigpipe, which is no longer supported

Component: TMOS

Symptoms:
The 'sys httpd ssl-certkeyfile' tmsh help text contains a reference to bigpipe, which is no longer supported.

Conditions:
Viewing tmsh help for 'sys httpd ssl-certkeyfile'.

Impact:
Incorrect reference to bigpipe.

Workaround:
You can use the following command sequence to change the key:
modify httpd { ssl-certfile [string] ssl-certkeyfile [string] }

803629-7 : SQL monitor fails with 'Analyze Response failure' message even if recv string is correct

Component: Local Traffic Manager

Symptoms:
For a database (mssql, mysql, postgresql or oracle) monitor type, with a 'recv' string configured, a pool member configured to use the DB monitor may be marked down even if the server is working and includes the configured response string among the response data.

Debug logging of the SQL monitor indicates the following:
... [DBPinger-3778] - Response from server: Database: 'db1'Database: 'information_schema'
... [DBPinger-3778] - Checking for recv string: information_schema
... [DBPinger-3778] - Analyze Response failure

The log shows 'Analyze Response failure' error message even when the configured 'recv' string appears within the response message from the DB server.

Conditions:
This occurs when the string matching the configured 'recv' string value does not appear in the response from the DB server in the row indicated by the 'recv-row' value configured for the monitor.

The default value of 'none' for the 'recv-row' monitor configuration value is actually interpreted as 'row 1' by the DB monitor core implementation.
Therefore, with the default configuration, any 'recv' string configured must appear in the first row of the DB server response in order to be recognized as a match.

Impact:
The DB monitor fails, and the DB server (node) is marked as down even though it is reachable and responding correctly per the configured 'recv' string.

Workaround:
You may use one of the following methods to work around this issue:
1. Configure the DB monitor's 'recv' string to match on the first row in the server response message.
2. Configure the 'recv-row' value in the DB monitor to match the row of the DB server's response which contains the configured 'recv' string.
3. Do not configure 'send' or 'recv' string for the DB monitor.

803457-3 : SNMP custom stats cannot access iStats

Component: TMOS

Symptoms:
While doing an snmpwalk, you encounter the following error:

-- tcl callback Default return string: istats: tmstat_open_read: open: /var/tmstat/istats: Permission denied.
-- istats: tmstat_read: open: /var/tmstat/istats: Permission denied.
-- ERROR opening iStats read segment '/var/tmstat/istats': Permission denied.

Conditions:
This occurs when using SNMP to access iStats.

Impact:
iStats cannot be accessed through SNMP and generates an error.

Workaround:
None.

803157-3 : LTM log contains shutdown sequence logs after boot_marker as logs are buffered until BIG-IP reboots

Component: TMOS

Symptoms:
In reboot case, the BIG-IP system buffers the shutdown sequence log messages and writes them to disk once the syslog service starts during the boot process. The boot_marker message is written before shutdown messages sync to disk. This leads to out-of-sequence log messages, making it difficult to determine when the service stop occurred.

Conditions:
Reboot the BIG-IP system.

Impact:
Log messages appear out of order. It is difficult to tell whether service stop happened as part of reboot, or any error during the subsequent boot process.

Workaround:
None.

803109-3 : Certain configuration may result in zombie forwarding flows

Component: Local Traffic Manager

Symptoms:
OneConnect profile in conjunction with 'Source-port preserve-strict' or cmp-hash setting of 'dst-ip' or 'src-ip' on the server-side VLAN may result in zombie forwarding flows.

On the server-side the incoming traffic hits a different TMM from the one that handles the outgoing traffic.

Unexpected 'Inet port exhaustion' messages may be logged in the LTM log file.

Conditions:
-- OneConnect configured.

And one of the following:

-- Source-port is set to preserve-strict.
-- The cmp-hash setting on the server-side VLAN is set to 'dst-ip' or 'src-ip'.

Impact:
Zombie forwarding flows. Over time, the current allocation count grows and does not return to its prior level when traffic stops.

The current allocation can be checked with this command:
# tmctl memory_usage_stat name=connflow -s name,cur_allocs

Workaround:
You can use any of the following workarounds:

-- Remove the OneConnect profile from the Virtual Server.

-- Do not use 'source-port preserve' setting on the Virtual Server.

-- Set the 'cmp-hash default' on the server-side VLAN if it is set to 'cmp-hash src-ip' or 'cmp-hash dst-ip'.

Note: After making this change, it may be necessary to run the command 'tmsh restart sys service tmm', which will clear the old flows but also impact traffic. Traffic interrupted while tmm restarts.

802721-4 : Virtual Server iRule does not match an External Data Group key that's 128 characters long

Component: Local Traffic Manager

Symptoms:
Virtual server iRule does not match an External Data Group key that is 128 characters long.

Conditions:
-- A string type External Data Group with a key/value pair whose key is 128 characters long.

-- An iRule using [class match] to get the value from the Data Group.

Impact:
The call to [class match] returns an empty string ("").

Workaround:
None.

801705-6 : When inserting a cookie or a cookie attribute, BIG-IP does not add a leading space, required by RFC

Component: Local Traffic Manager

Symptoms:
The 'HTTP::cookie attribute' irule command allows manipulation of Cookie or Set-Cookie headers in HTTP requests or responses. When this command is used to insert a cookie attribute, it appends the attribute (and a possible value) to the header without a leading space character. A leading space character is a requirement per RFC 6265. When such a header is formed with iRule command 'HTTP::cookie insert' or 'HTTP::cookie attribute insert', the leading space is not provided, violating the RFC.

Conditions:
-- A virtual server with HTTP profile is configured.
-- There is an iRule generating or updating a cookie header with 'HTTP::cookie insert' or 'HTTP::cookie attribute insert' command.

Impact:
There is no space preceding the attribute. RFC is violated.

Workaround:
When inserting a cookie attribute with iRule command, add a leading space to the name of attribute to be inserted.

798885-4 : SNMP response times may be long when processing requests

Component: TMOS

Symptoms:
SNMP queries to the BIG-IP system may take longer (up to 15% more time) to process on BIG-IP systems with large configurations. mcpd CPU usage increases by a small amount (up to 10%) during these queries.

Conditions:
-- Large configuration.
-- Using SNMP to query statistics on the BIG-IP system.

Impact:
A small increase in response time to SNMP requests to the BIG-IP. Some SNMP queries might fail due to timeouts. mcpd CPU usage is slightly elevated while processing these queries.

Workaround:
If the responses to SNMP queries are taking too long, MCPD and SNMPD may overburden the control plane. It may be necessary to lengthen the timeout and retry values used by the SNMP client. It may also be helpful to trim what is queried, for example, not repetitively walking large tables like the Virtual Server or LTM Pool Member tables for statistics.

797573-3 : TMM assert crash with resulting in core generation in multi-blade chassis

Component: Local Traffic Manager

Symptoms:
TMM crashes while changing settings.

Conditions:
Seen on multi-blade chassis with either one of the options:
-- Running system with DoS and other traffic.
-- Create a new vCMP guest and deploy it.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

796985-3 : Default IPv4 IP address is assigned to Alt-Address in isolated vCMP guest; vCMP host or guest are upgraded and guest is 'Inoperative'★

Component: TMOS

Symptoms:
VCMP host or guest is upgraded, and the vCMP guest is 'Inoperative', with messages similar to the following in /var/log/ltm:

-- warning clusterd[1546]: 013a0005:4: Clusterd using /VERSION for SW specification.
-- info clusterd[1546]: 013a0023:6: Blade 1: No info received from slot: Starting up
-- err clusterd[1546]: 013a0004:3: result {
-- err clusterd[1546]: 013a0004:3: result.code 17237812
-- err clusterd[1546]: 013a0004:3: result.attribute float_mgmt2_ip
-- err clusterd[1546]: 013a0004:3: result.message 01070734:3: Configuration error: Cluster alt-address: 192.168.1.246 cannot be the same address family as cluster address: 192.168.1.246
-- err clusterd[1546]: 013a0004:3: }
-- err clusterd[1546]: 013a0004:3: Per-invocation log rate exceeded; throttling.
-- notice clusterd[1546]: 013a0006:5: Disconnecting from mcpd.
-- info clusterd[1546]: 013a0007:6: clusterd stopping...

Conditions:
-- Isolated vCMP guest.
-- Both 'Address' and 'Alt-Address' are assigned the same IPv4 address.
-- Upgrade occurs.

Impact:
Upon host/guest upgrade, vCMP guest is 'Inoperative'.

Workaround:
-- For new vCMP guests, or prior to booting the vCMP guest to an affected version for the first time, assign it a management-ip from the vCMP host. This prevents the alt-address from being assigned and the issue from occurring on subsequent upgrades.

tmsh modify vcmp <guest_name> management-ip 192.168.1.246/24

-- For existing vCMP guests already on an affected version, but not currently experiencing the issue, assign a management-ip from the vCMP host and remove the alt-address from within the vCMP guest to prevent the issue from occurring in a future upgrade or reboot:

    host# tmsh modify vcmp guest <guest-name> management-ip 192.168.1.246/24

    guest# tmsh modify sys cluster default alt-address none

-- When already upgraded and seeing the issue on a guest, set a management-ip from the vCMP host and run the following commands within the guest to remove the alternate address from the configuration file:

    host# tmsh modify vcmp guest <guest-name> management-ip 192.168.1.246/24

    guest# bigstart stop clusterd
    guest# sed -i s/alt_addr=.*// -i /shared/db/cluster.conf
    guest# bigstart start clusterd

795933-7 : A pool member's cur_sessions stat may incorrectly not decrease for certain configurations

Component: Local Traffic Manager

Symptoms:
Under certain conditions, a pool member's cur_sessions stat may increase, but not decrease when it should.

Conditions:
- The virtual server using the pool has an iRule attached that references global variables.
- The virtual server using the pool has an ASM security policy attached to it.
- Traffic flows to the pool member.

Impact:
Incorrect stats.

795633-2 : GUI and REST API unable to add virtual servers containing a space in the name to a pool

Component: Global Traffic Manager (DNS)

Symptoms:
The GUI and REST API are unable to add virtual servers containing a space in the name to a pool.

Conditions:
Virtual server name contains a space.

Impact:
Unable to manage pool members if the virtual server contains a space in the name.

Workaround:
Use tmsh.

795429-5 : Unrelated iControl REST transaction error message is returned when committing a transaction without any tasks.

Component: TMOS

Symptoms:
An unrelated iControl REST transaction error message is returned when committing an iControl REST transaction that does not contain any tasks:

Error: Missing transaction ID for this call.

Conditions:
-- Committing an iControl REST transaction.
-- The task does not contain any tasks within 120 seconds of creating the transaction.

Impact:
Unrelated error message can be confusing and increase troubleshooting time.

Workaround:
None.

794889-1 : Pool member state force-offline processes persistent connections in Diameter.

Component: Service Provider

Symptoms:
When a Diameter pool member is marked force-offline, it continues to process persistent connections.

Conditions:
Configure pool member state to force-offline, before initiating Diameter connections.

Impact:
Pool member continues to process persistent connections after being forced offline.

794505-5 : OSPFv3 IPv4 address family route-map filtering does not work

Component: Local Traffic Manager

Symptoms:
Filtering IPv4 routes using route-map does not work. All the IPv4 redistributed routes fail to redistribute if the route-map is attached to the OSPFv3 IPv4 address-family.

Conditions:
1. Configure two OSPF sessions, one for the IPv4 address-family and the other for the IPv6 address family.
2. Redistribute kernel routes.
3. Check routes are propagated.
4. Add a route map to allow any IPv4 kernel route matching IP address.

Impact:
All routes fail to propagate and show that the IPv6 OSPF database external is empty. All IPv4 routes are blocked to redistribute instead of the routes mentioned in the route-map/prefix-list.

Workaround:
None.

794385-3 : BGP sessions may be reset after CMP state change

Component: Local Traffic Manager

Symptoms:
A CMP (Clustered Multiprocessing) state change occurs when the state of the BIG-IP system changes.

This happens in the following instances:
  - Blade reset.
  - Booting up or shutting down.
  - Running 'bigstart restart'.
  - Setting a blade state from/to primary/secondary.

During these events, there is a small chance that ingress ACK packet of previously established BGP connection is going to be disaggregated to the new processing group(TMMs) and selected TMM is ready to process traffic, but is not ready yet to process traffic for existing connection. In this case, connection isn't processed and reset instead.

Conditions:
-- VIPRION chassis with more than one blade.
-- CMP hash of affected VLAN is changed from the Default value, for example, to Source Address.
-- BGP peering is configured.
-- CMP state change is occurred on one of the blades.
-- BGP ingress ACK packet is disaggregated to TMM, which either wrong TMM or not ready to process the packet of already established connection

Impact:
Affected BGP peering is reset and dynamic routes learnt by the configured protocol are withdrawn, making it impossible to advertise dynamic routes of affected routing protocols from the BIG-IP system to the configured peers. This can lead to unexpected routing decisions on the BIG-IP system or other devices in the routing mesh.

In most cases, unexpected routing decisions are from networks learnt by affected routing protocols when the routing process on the BIG-IP system becomes unreachable. However, this state is short-lived, because the peering is recreated shortly after the routing protocol restarts. The peering time depends on the routing configuration and responsiveness of other routing devices connected to the BIG-IP system. It's the usual routing convergence period, which includes setting the peering and exchanging routing information and routes.

Workaround:
There is no workaround, but the issue was never seen with a configuration where CMP hash of affected VLAN is changed back to Default value.

793669-5 : FQDN ephemeral pool members on high availability (HA) pair does not get properly synced of the new session value

Component: Local Traffic Manager

Symptoms:
On a high availability (HA) paired device group configuration, where there are FQDN nodes as pool members in a pool, when the pool member is enabled or disabled on one device, and with config-sync, the other device does not fully update the peer. The template node gets updated with the new value, but the ephemeral pool member retains the old value.

Conditions:
Steps to Reproduce:
1. Configure HA, specifically a Device group (e.g., Failover) with two BIG-IP systems.
2. Create an HTTP pool (TEST_FQDN_POOL) and FQDN Pool Member on both systems.
3. Wait for the FQDN pool member to report as AVAIL_GREEN and the ephemeral node as AVAIL_BLUE on both systems.
4. Tmsh login to any of the systems.
5. Run the command:
tmsh run cm config-sync to-group Failover
6. Run the command:
tmsh modify ltm pool TEST_FQDN_POOL members modify { example.com:http { session user-disabled } }
7. Run the command:
tmsh run cm config-sync force-full-load-push to-group Failover

Impact:
FQDN pool member enabling/disabling is not being fully propagated to the other device after config-sync.

Workaround:
None.

793217-5 : HW DoS on BIG-IP i2800/i4800 might have up to 10% inaccuracy in mitigation

Component: Advanced Firewall Manager

Symptoms:
Depending on traffic patterns, when HW DoS on BIG-IP i2800/i4800 is configured, HW DoS might mitigate up to 10% more aggressively. If the rate-limit configured is 1000pps, the device might allow only 900pps.

Conditions:
-- HW DoS on BIG-IP i2800/i4800 platforms.
-- Attack pattern is distributed evenly on all tmm threads.

Impact:
HW DoS mitigates more aggressively, which might result in seeing fewer packets than what is configured.

Workaround:
Configure the rate-limit to be 10% more than what is desired.

792813-1 : The iRule command 'DNS::edns0 subnet address' returns an empty string when subnet info is not received

Component: Global Traffic Manager (DNS)

Symptoms:
When subnet info is not received, iRule command 'DNS::ends0 subnet address' reports a Tcl error. Because that is optional information, the command should not report an error.

Conditions:
-- iRule command 'DNS::ends0 subnet address'.
-- DNS request is received without subnet info.

Impact:
Using the iRule command 'DNS::edns0 subnet address' reports a Tcl error.

Workaround:
None.

791365-3 : Bad encryption password error on UCS save

Component: TMOS

Symptoms:
When a user with the admin role attempts to save a UCS with a passphrase, the following error is encountered:

[resource-admin@inetgtm1dev:Active:Standalone] ucs # tmsh save sys ucs /var/local/ucs/test-ucs passphrase password
Saving active configuration...
Error: Bad encryption password. <=========
Operation aborted.
/var/tmp/configsync.spec: Error creating package

WARNING:There are error(s) during saving.
Not everything was saved.
Be very careful when using this saved file!

Error creating package
Error during config save.
Unexpected Error: UCS saving process failed.

Conditions:
1) Log into the BIG-IP system as a user with admin role that has Advanced Shell access.
2) Attempt to create a UCS with a passphrase.

Impact:
Unable to save UCS with a passphrase.

Workaround:
This affects users logged in with the Admin role; you will be able to create a UCS with a passphrase while logged in as either the root user or as a user with the resource-admin role.

791061-5 : Config load in /Common removes routing protocols from other partitions

Component: TMOS

Symptoms:
While loading the /Common partition, config routing protocols on other partition route-domains will be removed.

Conditions:
-- Configure route-domains on other partitions with routing-protocols.
-- Load the /Common partition config alone.

Impact:
Routing protocols config from other partitions are removed.

Workaround:
Reload the config with the command:
load sys config partitions all

790113-6 : Cannot remove all wide IPs from GTM distributed application via iControl REST

Component: Global Traffic Manager (DNS)

Symptoms:
The following tmsh command allows you to delete all wide IPs using an 'all' specifier:

modify gtm distributed-app da1 wideips delete { all }

There is no equivalent iControl REST operation to do this.

Conditions:
This can be encountered while trying to delete all wide IPs from a distributed application via iControl REST.

Impact:
iControl REST calls that should allow you to remove all wide IPs from a GTM distribution application return an error, leaving you unable to complete the task via iControl REST.

Workaround:
You can use one of the following workarounds:

-- Use the WebUI.

-- Use the tmsh utility, for example:
tmsh modify gtm distributed-app da1 wideips delete { all }

-- Invoke tmsh from within the bash iControl REST endpoint, for exmaple:
curl -u username:password -s -H 'Content-Type: application/json' -X POST -d "{\"command\":\"run\",\"utilCmdArgs\":\"-c 'tmsh modify gtm distributed-app da1 wideips delete { all }'\"}" https://<IP>/mgmt/tm/util/bash

788645-5 : BGP does not function on static interfaces with vlan names longer than 16 characters.

Component: TMOS

Symptoms:
If a VLAN, VLAN group, or tunnel has a name with more than 15 characters, BGP does not function properly on that interface.

Conditions:
-- BGP Dynamic routing in use.
-- Interface name greater than 15 characters.

Impact:
BGP Dynamic Routing is not working.

Workaround:
1. Rename the interface using 15 or fewer characters.
2. Remove Static Binding and Bind to all interfaces.

788473-3 : Email sent from APM is not readable in some languages

Component: Access Policy Manager

Symptoms:
Email sent from APM is not readable in some languages.

Conditions:
APM administrator has configured Email Agent in the per-session policy.

Impact:
Users receiving the email in certain languages cannot read the email.

Workaround:
None.

788257-2 : Bigd.mgmtroutecheck setting ignored by in-tmm monitors after bigstart restart

Component: In-tmm monitors

Symptoms:
The bigd.mgmtroutecheck db variable can be enabled to prevent monitor traffic from going through the management interface (for information, see K14549: Overview of the 'bigd.mgmtroutecheck' database key :: https://support.f5.com/csp/article/K14549); however, if in-tmm monitors are configured, the setting will be ignored after a bigstart restart.

Conditions:
-- bigd.mgmtroutecheck is enabled
-- bigd.tmm is enabled (i.e., in-tmm monitors are configured).
-- tmm has a route configured to the management interface.
-- A pool member exists that matches a route through the management interface.
-- bigstart restart is performed.

Impact:
In-tmm monitor traffic uses the management interface if there is a route to the pool member via the management interface, even when bigd.mgmtroutecheck indicates it is enabled.

Workaround:
None

787973-1 : Potential memory leak when software crypto request is canceled.

Component: Local Traffic Manager

Symptoms:
Memory may occasionally leak when a software crypto request is cancelled before it has completed.

Conditions:
There are a number of reasons why a software crypto request may be canceled.

Impact:
Memory may leak.

Workaround:
No workaround.

787677-5 : AVRD stays at 100% CPU constantly on some systems

Component: Application Visibility and Reporting

Symptoms:
One thread of the avrd process spontaneously starts to consume 100% CPU.

Conditions:
The exact conditions under which this occurs are unknown, but might occur only on vCMP configurations.

Impact:
System performance degrades.

Workaround:
Restart TMM:
bigstart restart tmm

786633-2 : Debug-level messages are being logged even when the system is not set up for debug logging

Component: TMOS

Symptoms:
With certain modules provisioned, the following debug apmd log events are reported to the logging server:

-- slot1/systemname debug apmd[14204]: GSSAPI client step 2.
-- err apmd[14204]: 01490107:3: ...: Local error, SASL(-1): generic failure: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (Ticket expired) (-2)

Conditions:
-- APM, APML, ASM, AVR, iRulesLX, LTM provisioned.
-- Configured to use Generic Security Service Application Program Interface (GSSAPI, also GSS-API).

Impact:
Debug-level messages are logged even when the BIG-IP system is not configured to use debug logging:
debug apmd[14204]: GSSAPI client step 2.

Workaround:
None.

785873-3 : ASM should treat 'Authorization: Negotiate TlR' as NTLM

Component: Application Security Manager

Symptoms:
When an authentication request with Authorization: Negotiate arrives to ASM. ASM does not count it as a login attempt. As a result brute force protection isn't applied.

Conditions:
-- ASM provisioned.
-- ASM policy attached to a virtual sever.
-- Login URL configured in ASM policy.
-- Brute force protection enabled in ASM policy.

Impact:
Brute force attack checking can be skipped if the backend server authorization type is NTLM but the client sends 'Authorization: Negotiate TlR'.

Workaround:
Use iRule which changes 'Authorization: Negotiate TlR' to NTLM on the client side (before ASM) and sets is back to the original value on the server side (after ASM)

785361-3 : In L2wire mode packets from srcIP 0.0.0.0 will be silently dropped

Component: Local Traffic Manager

Symptoms:
If the BIG-IP system is configured in L2Wire mode, packets from srcIP 0.0.0.0 are dropped.

Conditions:
L2Wire mode.

Impact:
All srcIP 0.0.0.0 packets are dropped silently.

Workaround:
Configure the virtual server to be in L2-forward mode.

781733-5 : SNMPv3 user name configuration allows illegal names to be entered

Component: TMOS

Symptoms:
The validation of SNMPv3 user names is not strict, and allows users of both the GUI and TMSH to enter badly formed user names. When the SNMP daemon reads these user names from the snmpd.conf file, validation rejects the names.

Conditions:
Poorly formed SNMPv3 user names can be entered into configuration, for example, names with embedded spaces.

Impact:
The user names are not accepted by the SNMP daemon when it reads the configuration from the snmpd.conf file.

Workaround:
Use alphanumeric characters for SNMPv3 user names, and do not include embedded spaces in the names.

780857-2 : HA failover network disruption when cluster management IP is not in the list of unicast addresses

Component: Local Traffic Manager

Symptoms:
If the cluster management IP address is not in the list of failover network unicast addresses, the blade management IP addresses in the unicast mesh will not be able to receive failover messages from peer devices.

Conditions:
-- VIPRION chassis or vCMP guest on a VIPRION chassis.
-- Per-blade management IP addresses listed in the failover network unicast mesh.
-- No cluster management IP address listed.

Impact:
The blade management IP addresses in the failover network unicast mesh stop functioning:

[root@VIP2200-R75-S5:/S1-green-P::Standby:In Sync] config # tmctl -w 200 -S sod_tg_conn_stat
entry_key local_failover_addr remote_device_name pkts_received transitions last_msg status
----------------------------- ------------------- ------------------------------ ------------- ----------- ---------- ------
10.200.75.8->10.10.10.1:1026 10.10.10.1:1026 VIP2200-R75-S8.sin.pslab.local 3249 3 1555399271 1
10.200.75.8->10.200.75.3:1026 10.200.75.3:1026 VIP2200-R75-S8.sin.pslab.local 0 1 0 0 <--
10.200.75.8->10.200.75.4:1026 10.200.75.4:1026 VIP2200-R75-S8.sin.pslab.local 0 1 0 0 <--

Workaround:
You can add an explicit management IP firewall rule to allow this traffic:

tmsh modify security firewall management-ip-rules rules add { accept_udp_1026 { place-before first ip-protocol udp destination { ports add { 1026 } } action accept } }

This will add a firewall policy so port 1026 is no longer locked down, and the blade management IP addresses in the unicast mesh should begin to function properly.

780745-3 : TMSH allows creation of duplicate community strings for SNMP v1/v2 access

Component: TMOS

Symptoms:
TMSH allows you to create multiple access records with the same IP protocol, same Source IP network, and same community string.

Conditions:
Duplicate access records are created in TMSH.

Impact:
Unintended permissions can be provided when an undesired access record with the correct community string is matched to a request instead of the desired access record.

Workaround:
Use the Configuration Utility to manage SNMP v1/2c access records. (The GUI properly flags the error with the message:
The specified SNMP community already exists in the database.

If you use tmsh, ensure that community strings remain unique within each Source IP Network for each IP protocol.

780437-6 : Upon rebooting a VIPRION chassis provisioned as a vCMP host, some vCMP guests can return online with no configuration.

Component: TMOS

Symptoms:
It is possible, although unlikely, for a vCMP host to scan the /shared/vmdisks directory for virtual disk files while the directory is unmounted.

As such, virtual disk files that existed before the reboot will not be detected, and the vCMP host will proceed to create them again.

The virtual disks get created again, delaying the guests from booting. Once the guests finally boot, they have no configuration.

Additionally, the new virtual disk files are created on the wrong disk device, as /shared/vmdisks is still unmounted.

Symptoms for this issue include:

-- Running the 'mount' command on affected host blades and noticing that /shared/vmdisks is not mounted.

-- Running the 'tmsh show vcmp guest' command on affected host blades (early on after the reboot) and noticing some guests have status 'installing-vdisk'.

-- Running the 'lsof' command on affected and unaffected host blades shows different device numbers for the filesystem hosting the virtual disks, as shown in the following example (note 253,16 and 253,1):

qemu-kvm 19386 qemu 15u REG 253,16 161061273600 8622659 /shared/vmdisks/s1g2.img

qemu-kvm 38655 qemu 15u REG 253,1 161061273600 2678798 /shared/vmdisks/s2g1.img

-- The /var/log/ltm file includes entries similar to the following example, indicating new virtual disks are being created for one of more vCMP guests:

info vcmpd[x]: 01510007:6: VDisk (s2g1.img/2): Adding.
info vcmpd[x]: 01510007:6: VDisk (s2g1.img/2): Syncing with MCP - [filename:s2g1.img slot:2 installed_os:0 state:0]
notice vcmpd[x]: 01510006:5: Guest (s2g1): Creating VDisk (/shared/vmdisks/s2g1.img)
info vcmpd[x]: 01510007:6: VDisk (s2g1.img/2): Syncing with MCP - [filename:s2g1.img slot:2 installed_os:0 state:1]
info vcmpd[x]: 01510007:6: Guest (s2g1): VS_ACQUIRING_VDISK->VS_WAITING_INSTALL
info vcmpd[x]: 01510007:6: Guest (s2g1): VS_WAITING_INSTALL->VS_INSTALLING_VDISK
notice vcmpd[x]: 01510006:5: Guest (s2g1): Installing image (/shared/images/BIGIP-12.1.2.0.0.249.iso) to VDisk (/shared/vmdisks/s2g1.img).
info vcmpd[x]: 01510007:6: VDisk (s2g1.img/2): Syncing with MCP - [filename:s2g1.img slot:2 installed_os:0 state:2]

Conditions:
-- VIPRION chassis provisioned in vCMP mode with more than one blade in it.

-- Large configuration with many guests.

-- The VIPRION chassis is rebooted.

-- A different issue, of type 'Configuration from primary failed validation' occurs during startup on one or more Secondary blades. By design, MCPD restarts once on affected Secondary blades, which is the trigger for this issue. An example of such a trigger issue is Bug ID 563905: Upon rebooting a multi-blade VIPRION or vCMP guest, MCPD can restart once on Secondary blades.

Impact:
-- Loss of entire configuration on previously working vCMP guests.

-- The /shared/vmdisks directory, in its unmounted state, may not have sufficient disk space to accommodate all the virtual disks for the vCMP guests designated to run on that blade. As such, some guests may fail to start.

-- If you continue using the affected guests by re-deploying configuration to them, further configuration loss may occur after a new chassis reboot during which this issue does not happen. This occurs because the guests would then be using the original virtual disk files; however, their configuration may have changed since then, and so some recently created objects may be missing.

Workaround:
There is no workaround to prevent this issue. However, you can minimize the risk of hitting this issue by ensuring you are running a software version (on the host system) where all known 'Configuration from primary failed validation' issues have been resolved.

If you believe you are currently affected by this issue, please contact F5 Networks Technical Support for assistance in recovering the original virtual disk files.

779185-2 : Forward zone deleted when wideip updated

Component: Global Traffic Manager (DNS)

Symptoms:
When a forward zone is configured in zonerunner, and a wideip is configured in the same zone, BIG-IP may delete the bind zone whenever the wide ip's pool members are modified.

Subsequent modifications of the same zone will then result in a new primary zone being created in bind.

Conditions:
- A forward zone is configured in bind (zonerunner)
- The pool members associated with a wideip are modified

Impact:
Queries that do not match wideips are passed to bind for processing, and are no longer forwarded to the nameserver configured in the forward zone.

Workaround:
- Recreate the zonerunner forward zone after modifying the wideip

779137-5 : Using a source address list for a virtual server does not preserve the destination address prefix

Component: Local Traffic Manager

Symptoms:
Configuring a network virtual server with a source address list causes the system to treat the virtual server as a host.

Conditions:
-- Configure a source address list on the virtual server.
-- Configure a network address for the destination of the virtual server (not an address list).

Impact:
Traffic does not flow to the virtual server as expected.

Workaround:
None.

778841-3 : Traffic is not passing in virtual wire when Virtual server type is standard & IP profile is ipother

Component: Local Traffic Manager

Symptoms:
Traffic is not passing in virtual wire when virtual server type is configured as standard, protocol set to "All Protocols" and the IP profile is ipother.

Conditions:
-- Virtual wire is configured
-- Virtual server type is standard
-- IP profile is ipother

Impact:
Virtual wire traffic matching the virtual server is dropped.

778513-1 : APM intermittently drops log messages for per-request policies

Component: TMOS

Symptoms:
APM may intermittently drop log messages, leading to missing information on policy execution or other events.

Conditions:
Using APM per-request policies, or ACCESS::log iRule commands.

Impact:
Administrator may fail to report certain logging events, hindering troubleshooting or auditing efforts.

Workaround:
No workaround is possible. When reviewing APM logs, keep in mind that during periods of high activity (greater than 100 log messages in 1-to-2 seconds) that the system may drop some log messages.

778501-2 : LB_FAILED does not fire on failure of HTTP/2 server connection establishment

Component: Local Traffic Manager

Symptoms:
When the server connection fails to be established due to server being down or actively rejecting the connection, LB_FAILED should fire and allow a new destination to be selected via iRule.

Conditions:
- iRule with LB_FAILED event
- server connection establishment fails

Impact:
Selection of a new destination via LB_FAILED is not possible, thus the client connection will be aborted.

Workaround:
No workaround available.

778225-5 : vCMP guests don't have the f5_api_com key and certificate installed when licensed by vCMP host

Component: Protocol Inspection

Symptoms:
Automatic hitless upgrade for protocol inspection fails on vCMP guests. This occurs because vCMP guest don't install f5_api_com key and certificates.

Conditions:
After licensing a vCMP guest, there is no f5_api_com key or certificate (you can run key_cache_path and crt_cache_path to determine that).

Impact:
Hitless upgrade fails for protocol inspection and traffic classification on vCMP guests.

Workaround:
Install the hitless upgrade IM package manually.

778041-3 : tcpdump fails with an unclear message when the 'epva' option is used on non-epva platforms (directly or through 'all' option)

Component: TMOS

Symptoms:
When tcpdump is invoked with the epva option on a non-epva platform (BIG-IP Virtual Edition, for example), it fails with an unclear message

errbuf:DPT Provider fatal error. Provider:ePVA Provider. No valid arguments.

Conditions:
-- Using a non-epva platform such as VE.
-- Calling the epva option:
+ Directly:
tcpdump -i 0.0 --f5 epva
+ Indirectly using 'all' (which includes epva):
tcpdump -i 0.0 --f5 all

Impact:
Unclear message does not give clear indication what the issue is, or how to get tcpdump to run with the 'all' option on non-epva platforms

Workaround:
Do not use the explicit epva option on non-epva platforms (it does not work anyway, as there is no epva debug information on those platforms).

Instead of 'all', explicitly specify other, non-epva providers on such platforms, for example, specifying 'noise' and 'ssl' providers:
tcpdump -i 0.0 --f5 n,ssl

777389-5 : In rare occurrences related to PostgreSQL monitor, the mcpd process restarts

Component: TMOS

Symptoms:
Possible indications include the following:

-- Errors such as the following may appear in ltm/log:

   - notice postgres[10872]: [466-1] WARNING: pgstat wait timeout.
   - notice sod[27693]: 01140041:5: Killing /usr/bin/mcpd pid 7144.
   - BD_CONF|ERR| ...failed to connect to mcpd after 5 retries, giving up...
   - BD_CONF|ERR| ...can't read message from mcp conn, status:16908291.
   - BD_MISC|CRIT| ...Received SIGABRT - terminating.

-- Errors such as the following may appear in the dwbld/log:

   - Couldn't send BLOB notification - MCP err 16908291.
   - Got a terminate/abort signal - terminating ...
   - Terminating mcp_bridge thread.

-- Processes may restart unexpectedly, including mcpd, bd, and postgresql.

Conditions:
-- The 'mcpd' process attempts to read monitoring data from the PostgreSQL server, but no data is available.

-- A contributing factor might be that the AFM module is licensed but not configured.

Impact:
Failing to receive a monitoring response from the SQL server, MCPD goes into an infinite loop and skips the heartbeat report, resulting in its restart. While MCPD is restarting, the system is offline and does not process traffic. After restart, system operation returns to normal.

Workaround:
The chance of occurrence can be minimized by making sure that control-plane processes have sufficient memory to run efficiently.

776489-5 : Remote authentication attempts to resolve only LDAP host against the first three name servers configured.

Component: TMOS

Symptoms:
'Login failed' is displayed on the BIG-IP system's login screen.

Conditions:
-- Remote authentication is enabled.
-- There are more than three name servers configured.

Impact:
Admins may not be able to log into the BIG-IP GUI with their admin user account if the first 3 configured DNS name servers are not reachable.

Workaround:
None.

776285-1 : No stats returned for 'ltm classification stats urlcat-cloud' component at system startup

Component: Traffic Classification Engine

Symptoms:
The 'ltm classification stats urlcat-cloud' returns no stats even if the stats have zero values.

Conditions:
-- PEM URL Filtering license
-- The BIG-IP system has recently rebooted and has not passed traffic yet

Impact:
You are unable to see the zeroed stats for 'urlcat-cloud' until traffic has passed through and some stats accumulate.

Workaround:
None

776117-2 : BIG-IP Virtual Edition virtio driver incompatible with Q35 machine type

Component: TMOS

Symptoms:
The BIG-IP Virtual Edition's virtio driver is incompatible with the Q35 machine type.

Conditions:
-- BIG-IP Virtual Edition with the virtio driver.
-- Setting the machine type to Q35 on the hypervisor.

Impact:
The BIG-IP will not use the virtio driver, using the sock (or unic, in versions prior to 14.1.0) driver instead.

775845-1 : Httpd fails to start after restarting the service using the iControl REST API

Component: TMOS

Symptoms:
After restarting httpd using the iControl REST API, httpd fails to start, even with a subsequent restart of httpd at the command line.

Similar to the following example:

config # restcurl -u admin:admin /tm/sys/service -X POST -d '{"name":"httpd", "command":"restart"}'
{
  "kind": "tm:sys:service:restartstate",
  "name": "httpd",
  "command": "restart",
  "commandResult": "Stopping httpd: [ OK ]\r\nStarting httpd: [FAILED]\r\n(98)Address already in use: AH00072: make_sock: could not bind to address n.n.n.n:n\nno listening sockets available, shutting down\nAH00015: Unable to open logs\n"
}

config # tmsh restart sys service httpd
Stopping httpd: [ OK ]
Starting httpd: [FAILED]

Conditions:
Restarting httpd service using iControl REST API.

Impact:
Httpd fails to start.

Workaround:
To recover from the failed httpd state, you can kill all instances of the httpd daemon and start httpd:

killall -9 httpd

tmsh start sys service httpd

775797-3 : Previously deleted user account might get authenticated

Component: TMOS

Symptoms:
A user account which may have originally been manually configured as a local user (auth user) but may have since been removed, might still get authenticated and be able to modify the BIG-IP configuration.

Conditions:
-- User account configured as local user.
-- The user account is deleted later.

(Note: The exact steps to produce this issue are not yet known).

Impact:
The deleted user that no longer exists in the local user list and which is also not explicitly authorized by remote role groups, can get authenticated. The deleted user is also able to modify the BIG-IP configuration via iControl.

Workaround:
None.

774817-1 : ICMP packets are intermittently forwarded out of both VLAN group members

Component: Local Traffic Manager

Symptoms:
ICMP packets sent out on the wrong interface.

Conditions:
BIG-IP system is configured in VLAN group-based L2 transparent mode.

Impact:
The ICMP packet sent out on the wrong VLAN is dropped by the receiving router because the destination MAC address does not match that of the router. Typically, a topology for asymmetric traffic flows across VLAN groups has VLAN asymmetry built in using routers.

Workaround:
None.

774225-4 : mcpd can get in restart loop if making changes to DNSSEC key on other GTM while the primary GTM is rebooting

Component: Global Traffic Manager (DNS)

Symptoms:
mcpd is in a restart loop after creating an internal DNSSEC FIPS key on a secondary GTM while rebooting the primary DNSSEC key generator GTM (gtm.peerinfolocalid==0).

Conditions:
New DNSSEC internal FIPS key is created and assigned to DNSSEC zone when BIG-IP system with gtm.peerinfolocalid==0 is down.

Impact:
mcpd is in a restart loop.

Workaround:
For maintenance window operations, set DNSSEC peer leader to the unit that will remain UP while rebooting the primary key generator in sync group (gtm.peerinfolocalid==0).

# tmsh modify gtm global-settings general peer-leader <gtm-server-name>

After the reboot is complete, all devices are back up, and everything looks good in the configs, clear the peer-leader setting:

# tmsh modify gtm global-settings general peer-leader none

If there are two GTM units: GTM1 (having gtm.peerinfolocalid == 0), GTM2, and you are going to reboot GTM1, then before rebooting, run the following command to configure the DNSSEC peer-leader setting:

# tmsh modify gtm global-settings general peer-leader GTM2

After reboot, clear the peer-leader setting:

# tmsh modify gtm global-settings general peer-leader none

773577-5 : SNMPv3: When a security-name and a username are the same but have different passwords, traps are not properly crafted

Component: TMOS

Symptoms:
On an SNMPv3 configuration, when a security-name and a username are the same but have different passwords, traps are not properly crafted.

Conditions:
security-name is the same as an SNMPv3 username.

Impact:
SNMP traps cannot be decoded

Workaround:
Delete or rename user.

773173-2 : LTM Policy GUI is not working properly

Component: TMOS

Symptoms:
The GUI, is not displaying LTM policies created with a rule in which log criteria is 'action when the traffic is matched'.

Also, some of the Actions disappear while adding multiple actions in a rule.

Using tmsh shows the polices created in the GUI.

Conditions:
From the GUI, create LTM policies with a rule in which log criteria is 'action when the traffic is matched'.

Impact:
GUI is not displaying LTM policies created with log as action in rule.

Workaround:
Use tmsh.

767305-5 : If the mcpd daemon is restarted by itself, some SNMP OIDs fail to return data the first time they are queried

Component: TMOS

Symptoms:
Upon querying a sysTmmStat* SNMP OID (for example, sysTmmStatTmUsageRatio5s), you find your SNMP client returns an error message similar to the following example:

No Such Instance currently exists at this OID

The very next time you query that same SNMP OID (or any other sysTmmStat* SNMP OID), you find they all work as expected and return the correct result.

Conditions:
This issue occurs after restarting only the mcpd daemon, i.e., running bigstart restart mcpd.

Impact:
All sysTmmStat* SNMP OIDs do not work until one of them is queried at least once, and the query is allowed to fail. After that, all sysTmmStat* SNMP OIDs work as expected.

Workaround:
Restart all services together, i.e., running the command: bigstart restart.

Should the mcpd daemon happen to be restarted on its own, you can simply ignore the error message and allow your SNMP polling station to fail a single polling cycle.

If you want to ensure that this issue does not occur, for example, so that your SNMP polling station does not generate unnecessary alarms, do not restart the mcpd daemon on its own, but rather restart all services together by running the following command:

bigstart restart

767217-5 : Under certain conditions when deleting an iRule, an incorrect dependency error is seen

Component: Local Traffic Manager

Symptoms:
If an iRule is being referenced by another iRule, and the reference is then removed, attempts to delete the formerly referenced iRule will result in an error similar to the following:

01070265:3: The rule (/Common/irule1) cannot be deleted because it is in use by a rule (/Common/irule2).

Conditions:
-- An iRule referencing another iRule.
-- The referencing iRule is in use.

Impact:
Unable to delete the iRule.

Workaround:
Save and re-load the configuration.

766593-5 : RESOLV::lookup with bytes array input does not work when length is exactly 4, 16, or 20

Component: Local Traffic Manager

Symptoms:
RESOLV::lookup returns empty string.

Conditions:
Input bytes array is at length of 4, 16, or 20.

For example:
[RESOLV::lookup @dnsserveraddress -a [binary format a* $host1.d1test.com]]

Impact:
RESOLV::lookup returns empty string.

Workaround:
Use lindex 0 to get the first element of the array.

For example:
[RESOLV::lookup @dnsserveraddress -a [lindex [binary format a* $host1.d1test.com] 0]]

766321-2 : boot slots created on pre-14.x systems lack ACLs

Component: TMOS

Symptoms:
Creation of HD1.x slots from 14.1.0.2 creates filesystems with slightly different properties than on slots created from 12.1.x for example. This is allowing ACL/XATTR support by default for the former units, which can triggers errors in some 14.1.x installations.

Conditions:
- Running 14.x, which had its slot created from a system running 12.x or 14.x
- Triggering journal creation (login? tmsh commands? unclear)

Impact:
An error may be generated after creating the journal:
warning kernel: [143381.837840]: systemd-journald[658]: Failed to read ACL on /var/log/journal/sample/user-sample.journal, ignoring: Operation not supported

This instance of the error message might not be critical.

If anything else depends on the ACLs to be present right at the start of the installation, some components might behave differently.

765365-2 : ASM tries to send response cookies after response headers already forwarded - makes CSRF false positive

Component: Application Security Manager

Symptoms:
ASM blocks a legal request and fires CSRF false positive violations when csrf JavaScript code is injected into a page without an html tag.

Conditions:
-- ASM provisioned.
-- ASM policy attached to a virtual server.
-- CSRF protection configured.
-- HTML pages learning features enabled.(BruteForce/WebScraping).
-- CSRF JavaScript code is injected into a page without an html tag.

Impact:
HTTP requests are blocked sometimes when they should not be.

Workaround:
To workaround this issue, configure asm internal and then restart asm, as follows:

/usr/share/ts/bin/add_del_internal add cs_resp_ingress_count 1
bigstart restart asm

764969-2 : ILX no longer supports symlinks in workspaces as of v14.1.0

Component: TMOS

Symptoms:
The GUI and TMSH report an error message if a symlink is present, and the workspace does not run. The error appears similar to the following:
General database error retrieving information.
General error: 01070711:3: boost::filesystem::status: Permission denied: "/var/ilx/workspaces/Common/test_links1/tmp_file" in statement [SELECT COUNT(*) FROM dev_workspace WHERE name LIKE '%'].

Conditions:
-- An ILX workspace is in the configuration.
-- The workspace contains a symlink.
-- Install the relevant rpm package with --no-bin-links (e.g., npm install <package-name> --no-bin-links).

Impact:
The ILX module is not accessible via the GUI, and the workspace with the symlink cannot be run.

Workaround:
1. Remove the symlink.
2. Copy the file into the workspace.

763145-2 : TMM Crash when using certain HTTP iRules with HTTP Security Profile

Component: Local Traffic Manager

Symptoms:
TMM could crash with core when HTTP Security Profile (Protocol Security, PSM) is on the Virtual Server, and using an iRule with either the HTTP::redirect or HTTP::respond commands, together with HTTP::disable on the same event. This is normally an incorrectly written iRule, but TMM crashes in this case.

Conditions:
-- HTTP Security Profile is used.
-- iRules contain HTTP::disable command and either HTTP::redirect or HTTP::respond on the same event.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Edit the iRules to prevent calling HTTP::disable together with HTTP::respond or HTTP::redirect.

762097-3 : No swap memory available after upgrading to v14.1.0 and above★

Component: TMOS

Symptoms:
After an upgrade to v14.1.0 or higher, swap memory may not be mounted. TMM or other host processes may restart due to lack of memory.

Conditions:
-- System is upgraded to v14.1.0 or above.

-- System has RAID storage.

Impact:
May lead to low or out-of-memory condition. The Linux oom killer may terminate processes, possibly affecting service.

Typically management activities may be impacted, for example, a sluggish GUI (config utility) or tmsh sessions.

Workaround:
Mount the swap volume with correct ID representing the swap device.

Perform the following steps on the system after booting into the affected software version:

1. Get the correct ID (RAID device number (/dev/md<number>)):
blkid | grep swap

Note: If there is no RAID device number, perform the procedure detailed in the following section.

2. Check the device or UUID representing swap in /etc/fstab.

3. If swap is not represented with the correct ID, modify the /etc/fstab swap entry to point to the correct device.

4. Enable the swap:
swapon -a

5. Check swap volume size:
swapon -s

If the blkid command shows there is no UUID associated with the swap RAID device, use the following procedure:

1. Generate a random UUID:
uuidgen

2. Make sure swap is turned off:
swapoff -a

3. Recreate the swap partition with UUID generated in step 1:
mkswap -U <uuid_from_step_1> <raid_device_from_step_1>

4. Run blkid again to make sure that you now have a UUID associated with the raid device:
blkid | grep swap

5. edit fstab and find the line
<old_value> swap swap defaults 0 0

6. Replace the old value, whether it was an incorrect UUID or a device name, with the UUID generated in step 1, for example:
UUID=8b35b30b-1076-42bb-8d3f-02acd494f2c8 swap swap defaults 0 0

761429-1 : TMM core after long run of high volumes of traffic

Component: Application Security Manager

Symptoms:
TMM core, failover.

Conditions:
-- Running on a vCMP guest with 4 cores and 2 VIPRION B4300 Blades.
-- ASM provisioned.
-- Bot-defense profile attached to a virtual server.
-- DoS profile attached to a virtual server.
-- Antifraud profile attached to a virtual server.
-- Different types of traffic running for hours.

Note: This is a description of the hardware and software configuration on which this occurred; the issue has not been reproduced, so some triggering factors have not yet been identified.

Impact:
Failover. Traffic disrupted while tmm restarts.

Workaround:
None.

760982-1 : An NLRI with a default route information is not propagated on 'clear ip bgp <neighbor router-id> soft out' command in some scenarios

Component: TMOS

Symptoms:
Soft out reset does not work for the default route.

Conditions:
-- BGP enabled
-- A route configuration change is made and 'clear ip bgp <IP-addr> soft in/out' is executed

Impact:
A default-route is not propagated in Network Layer Reachability Information (NLRI) by 'soft out' request.

Workaround:
None

760932-1 : Part of audit log messages are also in other logs when strings are long

Component: TMOS

Symptoms:
Parts of audit logs are found also in other logs like /var/log/user.log and /var/log/messages.

Conditions:
-- When audit log message strings are long.

Impact:
Log messages are duplicated. There is no indication of system functionality, and you can safely ignore them.

Workaround:
Modify the syslog-ng maximum length of incoming log messages from 8192 to 16384 bytes:

tmsh modify sys syslog include "options { log-msg-size(16384); };"

760740-3 : Mysql error is displayed when saving UCS configuration on BIG-IP system when MySQL is not running

Component: Protocol Inspection

Symptoms:
When saving the configuration to a UCS file, the process tries save the IPS learning information stored in the MySQL database.

MySQL runs only when particular modules are provisioned. If MySQL was previously running as a result of different provisioning, but is not currently running, saving the configuration to a UCS file succeeds, but the system reports a spurious message during the operation:

Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock.

Conditions:
-- Saving the configuration to a UCS file.
-- BIG-IP system provisioning only includes modules that do not require MySQL. These modules may include:
   + LTM
   + FPS
   + GTM (DNS)
   + LC
   + SWG
   + iLX
   + SSLo

-- BIG-IP system was previously provisioned with a module that starts MySQL, which results in the creation of the file /var/db/mysqlpw. These modules may include:
   + APM
   + ASM
   + AVR
   + PEM
   + AFM
   + vCMP

Impact:
The error message is cosmetic and has no impact on the UCS save process.

Workaround:
None.

760615-6 : Virtual Server discovery may not work after a GTM device is removed from the sync group

Component: Global Traffic Manager (DNS)

Symptoms:
LTM configuration does not auto-discover GTM-configured virtual servers.

Conditions:
-- GTM is deprovisioned on one or more GTM sync group members, or the sync group is reconfigured on one or more members.

-- Those devices remain present in the GTM configuration as 'gtm server' objects.

-- iQuery is connected to those members.

Impact:
Virtual servers are not discovered or added automatically.

Workaround:
You can use either of the following workarounds:

-- Manually add the desired GTM server virtual servers.

-- Delete the 'gtm server' objects that represent the devices that are no longer part of the GTM sync group. These can then be recreated if the devices are operating as LTM-configured devices.

760590-3 : TCP Verified-Accept with proxy-mss enabled does not honor the route-metrics cache when sending the SYN to the server

Component: Local Traffic Manager

Symptoms:
TCP Verified-Accept with proxy-mss enabled does not honor the route-metrics cache when sending the SYN to the server

Conditions:
-- TCP Verified-Accept option is used.
-- The proxy-mss is enabled.
-- The route-metrics cache entry is enabled.

Impact:
Route-metrics cache entry does not get used.

Workaround:
None.

760406-1 : HA connection might stall on Active device when the SSL session cache becomes out-of-sync

Component: Local Traffic Manager

Symptoms:
You see 'SSL handshake timeout' error messages in LTM log, and high availability (HA) system performance becomes degraded.

Conditions:
This might occur in either of the following scenarios:

Scenario 1
-- Manual sync operations are performed during while traffic is being passed.
-- SSL Connection mirroring is enabled.

Scenario 2
-- Saving configuration on an HA Standby node during while traffic is being passed.
-- SSL Connection mirroring is enabled.

Impact:
-- In Scenario 1, the sync operations causes the session cache to be out-of-sync between active and standby nodes.

-- In Scenario 2, the save operation clears the session cache on the standby node. As a result, the session cache might be out-of-sync between active and standby nodes.

In either Scenario:
-- SSL Connection mirroring fails and posts the timeout message.

-- The HA system performance becomes degraded due to SSL connection timeout.

Workaround:
-- Disable SSL session caching by setting 'Cache Size' in the client SSL profile option to 0.

-- Set device management sync type to Automatic with incremental sync.

760355-3 : Firewall rule to block ICMP/DHCP from 'required' to 'default'★

Component: Advanced Firewall Manager

Symptoms:
If firewall is configured on the management port with an ICMP rule, after upgrading to v14.1.x or later, the ICMP rule does not work.

Conditions:
-- Firewall is configured on the management port.
-- Firewall is configured with an ICMP rule to block.

Impact:
ICMP packets cannot be blocked with a firewall rule to drop on management port. ICMP packets are allowed from the management port.

Workaround:
Run the following commands after upgrading to v14.1.x or later from earlier versions.

# /sbin/iptables -N id760355
# /sbin/iptables -I INPUT 1 -j id760355
# /sbin/iptables -A id760355 -i mgmt -p icmp --icmp-type 8 -s 172.28.4.32 -j DROP

760354-4 : Continual mcpd process restarts after removing big logs when /var/log is full

Component: TMOS

Symptoms:
The BIG-IP device suddenly stops passing traffic. You might see errors similar to the following:

err mcpd[15230]: 01070596:3: An unexpected failure has occurred, TAP creation failed (tmm): Permission denied - net/validation/routing.cpp, line 168, exiting...

Conditions:
This might occur when when /var/log is full and then you remove big logs.

Impact:
The mcpd process restarts continuously. This occurs because tmm blocks mcpd from restarting after /var/log fills up.

Workaround:
Empty the contents of big size log files under /var/log and reboot the BIG-IP system.

759852-4 : SNMP configuration for trap destinations can cause a warning in the log

Component: TMOS

Symptoms:
The snmpd configuration parameters can cause net-snmp to issue a warning about deprecated syntax.

Conditions:
The use of a sys snmp command similar to the following to modify the snmpd.conf file:
sys snmp v2-traps { TRAP1 { host 1.2.3.4 community somestring } }

Impact:
net-snmp issues a warning that the syntax has been deprecated and reports a warning message in the log.

Workaround:
None.

759737-3 : Control and Analysis Plane CPU usage statistics are inaccurate for single core vCMP guests

Component: TMOS

Symptoms:
CPU usage statistics reported for Control and Analysis planes are not described properly for single-core vCMP guests.

Conditions:
A vCMP guest with a single core.

Impact:
CPU usage statistics report 0 Control Plane cores and 1 Analysis Plane core.

Workaround:
On a single core, two hyperthread vCMP guest, one hyperthread/CPU is dedicated to Data Plane while the other is dedicated to Control and Analysis Plane. All statistics attributed to the Analysis Plane in this CPU configuration are in fact the aggregate of Control Plane and Analysis Plane.

759671-2 : Unescaped slash in RE2 in user-defined signature should not be allowed

Component: Application Security Manager

Symptoms:
An unescaped slash in RE2 keyword in a user-defined signature caused a REST PATCH to the signature to have no effect.

Conditions:
A user-defined signature has an unescaped slash in RE2 keyword.

Impact:
REST PATCH to update the user-defined signature has no effect.

Workaround:
The slash in the signature keyword must be escaped by backslash.

759606-3 : REST error message is logged every five minutes on vCMP Guest

Component: TMOS

Symptoms:
Guestagentd periodically logs the following REST error message for each secondary slot in /var/log/ltm:

Rest request failed{"code":502."message":"This is a non-primary slot on the Viprion. Please access this device through the cluster address.","restOperationId":6410038,"kind":":resterrorresponse"}

Conditions:
Upgrade a vCMP guest from pre-13.1.x to a 13.1.x or later version.

Impact:
There is stale stat information for vCMP guests running on secondary slots.

Workaround:
Create a Log Filter with no publisher on the vCMP guest to discard the specific error message:

sys log-config filter Filter_RestError {
    level info
    message-id 01810007
    source guestagentd
}

759590-6 : Creation of RADIUS authentication fails with service types other than 'authenticate only'

Component: TMOS

Symptoms:
RADIUS authentication can only have an initial service type of 'authenticate only'.

Conditions:
This is encountered when configuring RADIUS authentication via the GUI.

Impact:
If you change the Service Type to anything except Authenticate Only (default), Authentication creation fails, and the following error appears in /var/log/webui.log:

01020066:3: The requested RADIUS Authentication Configuration (/Common/system-auth) already exists in partition Common.

Workaround:
After configuring RADIUS authentication with 'authenticate only' as the service type, go back and change the service type to the desired option.

759258-5 : Instances shows incorrect pools if the same members are used in other pools

Component: TMOS

Symptoms:
Monitor 'Instances' tab shows incorrect pools if the same members are used in other pools.

Conditions:
Steps to Reproduce:

1. Create custom monitor or use system default.
2. Assign that monitor to a test pool.
3. Navigate to Local Traffic :: Monitors, click the test monitor, then select the Instances tab.

Impact:
The test pool is displayed, as well any other pools that use the same member or members (but with other monitors assigned).

Workaround:
None.

758491-3 : When using NetHSM integration, after upgrade to 14.1.0 or later (or creating keys using fipskey.nethsm), BIG-IP cannot use the keys

Component: Local Traffic Manager

Symptoms:
For Thales:
The ltm/log shows SSL handshake failures with similar lines (this is for Diffie-Hellman Key Exchange):

-- warning bigip1 tmm1[28813] 01260013 SSL Handshake failed for TCP 192.0.2.1:5106 -> 192.0.2.200:5607
-- warning bigip1 tmm1[28813] 01260009 Connection error: ssl_hs_vfy_sign_srvkeyxchg:13583: sign_srvkeyxchg (80)
-- debug bigip1 tmm1[28813] 01260036 FIPS acceleration device error: fips_poll_completed_reqs: req: 4 status: 0x1 : Cancel
-- err bigip1 pkcs11d[26259] 01680002 Key table lookup failed. error.

After enabling pkcs11d debug, the pkcs11d.debug log shows:

-- 2019-10-03 11:21:50 [6399] t00075a9a462b0000: pkcs11: 000008D9 D obj_match_attribute class CKO_PRIVATE_KEY attribute CKA_CLASS
-- 2019-10-03 11:21:50 [6399] t00075a9a462b0000: pkcs11: 000008D9 D obj_match_attribute type CKA_CLASS matches
-- 2019-10-03 11:21:50 [6399] t00075a9a462b0000: pkcs11: 000008D9 D obj_match_attribute class CKO_PRIVATE_KEY attribute CKA_ID
-- 2019-10-03 11:21:50 [6399] t00075a9a462b0000: pkcs11: 000008D9 D obj_match_attribute type CKA_ID does not match <===

For Safenet:
-- warning tmm1[17495]: 01260009:4: Connection error: ssl_hs_vfy_sign_srvkeyxchg:13544: sign_srvkeyxchg (80)
-- warning tmm1[17495]: 01260013:4: SSL Handshake failed for TCP 10.1.1.11:6009 -> 10.1.1.201:443
-- err pkcs11d[5856]: 01680002:3: Key table lookup failed. error.

Conditions:
1. Keys were created on earlier versions of BIG-IP software, no matter if using tmsh (Safenet) or using fipskey.nethsm (Thales, Safenet) and the device was upgraded to 14.1.0 or later.

2. Keys were created on BIG-IP v14.1.0 or later directly, using fipskey.nethsm (Thales). For Safenet, fipskey.nethsm was deprecated in 14.0.0.

Impact:
SSL handshake failures.

Workaround:
There are two workarounds:
-- Re-create the keys using tmsh command.

IMPORTANT: This workaround is suitable for deployments that are new and not in production.

-- Re-import the keys from nethsm using:
tmsh install sys crypto key <key_label> from-nethsm

You can find the key_label here:
-- The rightmost string in the output of the Thales command:
nfkminfo -l

-- The string after label= in the 'cmu list' command for Safenet.

758435-2 : Ordinal value in LTM policy rules sometimes do not work as expected★

Component: Local Traffic Manager

Symptoms:
Which actions trigger in a first-match policy should depend on the ordinal of their rule. Sometimes, this does not work correctly.

Conditions:
The conditions under which this occurs are not known.

Impact:
LTM policy rules do not execute in the expected order.

Workaround:
It may be possible to re-arrange the rules to avoid the incorrect action execution.

758105-6 : Drive model WDC WD1005FBYZ-01YCBB2 must be added to pendsect drives.xml

Component: TMOS

Symptoms:
Below messages get logged to /var/log/messages
-- notice syslog-ng[15662]: Configuration reload request received, reloading configuration;
-- warning pendsect[31898]: skipping drive -- Model: WDC WD1005FBYZ-01YCBB2
-- warning pendsect[31898]: No known drives detected for pending sector check. Exiting

Conditions:
Using hardware containing drive model WDC WD1005FBYZ-01YCBB2.

Impact:
The system logs the messages because the drive model is not listed in /etc/pendsect/drives.xml.

Workaround:
Manually edit /etc/pendsect/drives.xml as follows:

1. Give write permissions to modify file:
chmod u+w /etc/pendsect/drives.xml

2. Open the file and add the following at the end of the file, before default:

<snip>
         <WD1005FBYZ>
            <offset firmware="RR07">0</offset>
            <offset firmware="default">0</offset>
            <family> "wd_Gold"</family>
            <wd_name>"Gold"</wd_name>
         </WD1005FBYZ>
         <DEFAULT>
              <firmware version="default">
                     <offset>0</offset>
              </firmware>
              <name> "UNKNOWN"</name>
              <family> "UNKNOWN"</family>
              <wd_name>"UNKNOWN"</wd_name>
         </DEFAULT>
   </model>
  </drives>

3. Save and close the file.

4. Remove write permissions so that no one accidentally modifies this file:
chmod u-w /etc/pendsect/drives.xml

5. Run the following command and check /var/log/messages to verify no errors are seen:
/etc/cron.daily/pendsect

758041-1 : Pool Members may not be updated accurately when multiple identical database monitors are configured

Component: Local Traffic Manager

Symptoms:
When two or more database monitors (MSSQL, MySQL, PostgreSQL, Oracle) with identical 'send' and 'recv' strings are configured and applied to different pools (with at least one pool member in each), the monitor status of some pool members may not be updated accurately.

Other parameters of the affected monitors that differ (such as 'recv row' or 'recv column' indicating where the specified 'recv' string should be found in the result set) may cause pool members using one of the affected monitors to connect to the same database to be marked UP, while pool members using another affected monitor may be marked DOWN.

As a result of this issue, pool members that should be marked UP or DOWN by the configured monitor may instead be marked according to another affected monitor's configuration, resulting in the affected pool members being intermittently marked with an incorrect state.

After the next monitor ping interval, affected pool members members may be marked with the correct state.

Conditions:
This may occur when multiple database monitors (MSSQL, MySQL, PostgreSQL, Oracle) are configured with identical 'send' and 'recv' parameters, and applied to different pools/members.

For example:
ltm monitor mysql mysql_monitor1 {
...
    recv none
    send "select version();"
...
}
ltm monitor mysql mysql_monitor2 {
...
    recv none
    send "select version();"
...
}

Impact:
Monitored pool members using a database monitor (MSSQL, MySQL, PostgreSQL, Oracle) randomly go offline/online.

Workaround:
To avoid this issue, configure each database monitor with values that make the combined parameters unique by changing either the 'send' or the 'recv' parameters, or both.

For example:
ltm monitor mysql mysql_monitor1 {
...
    recv none
    send "select version();"
...
}
ltm monitor mysql mysql_monitor2 {
...
    recv 5.7
    send "select version();"
...
}

757787-3 : Unable to edit LTM/AFM Policies that belong to an Application Service (iApp) using the WebUI.

Component: TMOS

Symptoms:
When creating a new rule or modifying an existing rule in a LTM/AFM Policy policy using the WebUI, the operation fails and an error similar to the following example is returned:

Transaction failed:010715bd:3: The parent folder is owned by application service (/Common/MyPolicy.app/MyPolicy), the object ownership cannot be changed to ().

Conditions:
-- The LTM/AFM Policy belongs to an Application Service (iApp).
-- The modification is attempted via the WebUI.

Impact:
Unable to make changes to existing LTM/AFM Policies.

Workaround:
Use the tmsh utility to make the necessary modifications to the LTM/AFM Policy. For example, the following command modifies an existing rule:

tmsh modify ltm policy myapp.app/Drafts/myapp_l7policy rules modify { 0 { conditions modify { 0 { http-method equals values { GET POST } } } } }

757486-1 : Errors in IE11 console appearing with Bot Defense profile

Component: Application Security Manager

Symptoms:
When Bot Defense profile is used and has Browser Verification enabled to either Verify Before Access, or Verify After Access, Microsoft Internet Explorer v11 (IE11) Browsers may display the following errors in the browser console:

HTML1512: Unmatched end tag.
a.html (26,1)
HTML1514: Extra "<body>" tag found. Only one "<body>" tag should exist per document.
a.html (28,1)

Conditions:
-- Bot Defense profile is enabled with Browser Verification.
-- End user clients are using the IE11 browser.

Impact:
Cosmetic error messages appear in an end user's browser console.

Workaround:
In order to work around this issue, inject the scripts to the '<body>' tag instead of the '<head>' tag. This can be done using this tmsh command:

tmsh mod sys db dosl7.parse_html_inject_tags value after,body,before,/body`

757464-7 : DNS Validating Resolver Cache 'Key' Cache records not deleted correctly when using TMSH command to delete the record

Component: Global Traffic Manager (DNS)

Symptoms:
Attempt to delete a DNS Validating Resolver cache record from the 'Key' cache does not remove the record. Also displays a negative TTL for that record.

tmm crash

Conditions:
-- Populate the DNS Validating Resolver Cache.
-- Attempt to delete a record from the 'Key' cache.

Impact:
Undesired behavior due to records not being deleted as instructed. Also negative TTL.

Workaround:
The only workaround is to restart tmm to generate a completely empty DNS cache. Traffic disrupted while tmm restarts.

757167-3 : TMM logs 'MSIX is not supported' error on vCMP guests

Component: TMOS

Symptoms:
On vCMP guests, logs of 'MSIX is not supported' messages apppear in /var/log/tmm.

Conditions:
This occurs only on vCMP guests.

Impact:
MSIX is not supported on vCMP guests, but system operation and traffic passing are not impacted otherwise.

Workaround:
None.

757029-6 : Ephemeral pool members may not be created after config load or reboot

Component: Local Traffic Manager

Symptoms:
When using FQDN nodes and pool members, ephemeral pool members may not be created as expected immediately after a configuration-load or BIG-IP system reboot operation.

Conditions:
This may occur on affected BIG-IP versions when:

-- Multiple FQDN names (configured for FQDN nodes/pool members) resolve to the same IP address.
-- DNS queries to resolve these FQDN names occur almost simultaneously.

The occurrence of this issue is very sensitive to timing conditions, and is more likely to occur when there are larger numbers of FQDN names resolving to a common IP address.

Impact:
When this issue occurs, some subset of ephemeral pool members may not be created as expected.

As a result, some pools may not have any active pool members, and do not pass traffic.

This issue, when it occurs, may persist until the next DNS queries occur for each FQDN name, at which point the missing ephemeral pool members are typically created as expected. Using the default FQDN interval value of 3600 seconds, such downtime lasts approximately one hour.

Workaround:
To minimize the duration of time when pools may be missing ephemeral pool members, configure a shorter FQDN interval value for the FQDN nodes:

tmsh mod ltm node fqdn-node-name { fqdn { interval ## } }
Where ## is the desired number of seconds between successive DNS queries to resolve the configure FQDN name.

756830-5 : BIG-IP may fail source translation for connections when connection mirroring is enabled on a virtual server that also has source port set to 'preserve strict'

Component: TMOS

Symptoms:
The BIG-IP system may fail source translation for connections matching a virtual server that has connection mirroring enabled and source port selection set to 'preserve strict'.

Conditions:
Connections match a virtual server that has following settings:

- Connection mirroring is enabled.
- Source Port set to 'Preserve Strict'.

In addition, CMP hash selection (DAG mode) on the corresponding VLANs is set to 'Default DAG'.

Impact:
Source translation may fail on BIG-IP system, leading to client connection failures.

Workaround:
You can try either of the following:

-- Do not use the Source Port setting of 'Preserve Strict'.

-- Disable connection mirroring on the virtual server.

756714-1 : UIDs on /home directory are scrambled after upgrade★

Component: TMOS

Symptoms:
UIDs of /home/$USER files and /home file are scrambled after upgrade.

Conditions:
Upgrade from 12.1.3.7 to 13.1.0.8.

Impact:
Low in most cases, since the administrative user can still access most files. One exception is that SSH requires that the authorized_keys file be owned by the user ID in question. This is 0 when a user has an administrative role, so the authorized_keys file will be ignored and a password will still be required for login.

Workaround:
None.

756540-1 : End-user may not be able to connect to VPN.

Component: Access Policy Manager

Symptoms:
When a virtual server without a connectivity profile is accessed with the request for a file pre/config.php, an invalid file is cached in the BIG-IP system's HTTP cache.

When the same request is later sent to a virtual server that does contain a connectivity profile, the invalid file from the cache is returned, which results in VPN connection failure.

Conditions:
-- APM is configured.
-- Virtual server without connectivity profile is configured.
-- Another Virtual server with connectivity profile is configured.
-- The first virtual server is accessed with an HTTP request for pre/config.php?version=2.0.
-- Then second virtual server is accessed with same request.

Impact:
End-user may not be able to use the VPN.

Workaround:
When the issue occurs, run the following command on the BIG-IP command line in order to clear the cache:

tmsh delete ltm profile ramcache all

756313-6 : SSL monitor continues to mark pool member down after restoring services

Component: Local Traffic Manager

Symptoms:
After an HTTPS monitor fails, it never resumes probing. No ClientHello is sent, just 3WHS and then 4-way closure. The pool member remains down.

Conditions:
-- The cipherlist for the monitor is not using TLSv1 (e.g., contains -TLSv1 or !TLSv1).
-- The pool member is marked down.

Impact:
Services are not automatically restored by the health monitor.

Workaround:
-- To restore the state of the member, remove it and add it back to the pool.

-- Remove !TLSv1 and -TLSv1 from the cipher string, if possible.

755976-4 : ZebOS might miss kernel routes after mcpd deamon restart

Component: TMOS

Symptoms:
After an mcpd daemon restart, sometimes (in ~30% of cases) ZebOS is missing some of kernel routes (virtual addresses).

One of the most common scenario is a device reboot.

Conditions:
-- Dynamic routing is configured.
-- Virtual address is created and Route Advertisement is configured:
imish -e 'sh ip route kernel'
-- mcpd daemon is restarted or device is rebooted.

Impact:
The kernel route (virtual address) is not added to the ZebOS routing table and cannot be advertised.

Workaround:
There are several workarounds; here are two:

-- Restart the tmrouted daemon:
bigstart restart tmrouted

-- Recreate the affected virtual address.

755791-6 : UDP monitor not behaving properly on different ICMP reject codes.

Component: Local Traffic Manager

Symptoms:
Unexpected or improper pool/node member status.

Conditions:
The BIG-IP system receives the ICMP rejection code as icmp-net/host-unreachable.

Impact:
The monitor might consider a server available when some type of ICMP rejection has been received that is not port unreachable.

Workaround:
You can use either of the following workarounds:
-- Use UDP monitors configured with a receive string.
-- Do not use UDP monitors.

755631-5 : UDP / DNS monitor marking node down

Component: Local Traffic Manager

Symptoms:
The UDP / DNS monitor marks nodes down.

Conditions:
-- UDP or DNS monitor configured.
-- Interval is multiple of timeout.
-- The response is delayed by over one interval.

Impact:
Pool member is marked down.

Workaround:
Increase the interval to be greater than the response time of the server.

755061-3 : iRule audit logs may be written to separate files

Component: Local Traffic Manager

Symptoms:
Only the first line of an iRule audit log is written into /var/log/audit. The rest of the iRule is logged to /var/log/messages.

Conditions:
This is encountered when iRule audit logging is enabled and iRule events are triggered.

Impact:
Snippets of iRules appear in unexpected locations.

Workaround:
Although there is no workaround, if you have sensitive information in your iRules and want to prevent it from appearing in audit logs, you can disable audit logging.

755033-1 : Dynamic Routes stats row does not appear in the UI

Component: Service Provider

Symptoms:
From UI, when navigate to the following path:
Statistics ›› Module Statistics : Local Traffic ›› Profiles Summary : Diameter Router.
The stat for 'Current number of dynamic routes' does not appear.

Conditions:
Any condition

Impact:
Unable to view dynamic routes statistics in the GUI

Workaround:
Look at the statistics from tmsh

754604-4 : iRule : [string first] returns incorrect results when string2 contains null

Component: Local Traffic Manager

Symptoms:
In an iRule such as 'string first $string1 $string2' returns incorrect results when $string2 contains a null byte and $string1 is not found within $string2. Performing the same search in tclsh, the expected -1 (not found) result is returned.

Conditions:
-- 'string first $string1 $string2' iRule.
-- string2 in an iRule contains a null byte.

Impact:
Operation does not return the expected -1 (not found) result, but instead returns an unexpected, random result.

Workaround:
None.

754335-3 : Install ISO does not boot on BIG-IP VE★

Component: TMOS

Symptoms:
The install ISO does not boot on BIG-IP Virtual Edition (VE).

Conditions:
Attempting to boot a BIG-IP VE from a virtual DVD-ROM drive loaded with an affected ISO file.

Impact:
The system does not fully boot and hangs, preventing you from performing an installation or using the live environment for other recovery purposes.

Workaround:
To work around this issue, boot the BIG-IP VE from an ISO file earlier than 14.1.0. If necessary, install that version, and then upgrade to 14.1.0 using the live installer.

753715-2 : False positive JSON max array length violation

Component: Application Security Manager

Symptoms:
False-positive JSON max array length violation is reported.

Conditions:
-- JSON profile is used.
-- The violation is coming for non-array under certain conditions.

Impact:
The system reports a false-positive violation.

Workaround:
None.

753712-1 : Incorrect warning: Traffic Matching Criteria's inline source address has been set to any4 from any6 to match inline destination address' address family.

Component: TMOS

Symptoms:
An incorrect warning message is given when the inline source/dest address is changed:

-- warning mcpd[6927]: 01071859:4: Warning generated : Traffic Matching Criteria's inline source address has been set to any4 from any6 to match inline destination address' address family.

Conditions:
This occurs after you create a traffic-matching-criteria (port-list, address-list) with different source and destination addresses.

Impact:
An incorrect and confusing warning message is given. This warning does not affect traffic processing. It is inadvertently triggered when reading the configuration of the traffic matching profile. Virtual servers should continue to work, and the config should load as expected, despite the warning.

Workaround:
None

753526-7 : IP::addr iRule command does not allow single digit mask

Component: Local Traffic Manager

Symptoms:
When plain literal IP address and mask are used in IP::addr command, the validation fails if the mask is single digit.

Conditions:
The address mask is single digit.

Impact:
Validation fails.

Workaround:
Assign address/mask to a variable and use the variable in the command.

753501-5 : iRule commands (such as relate_server) do not work with MRP SIP

Component: Service Provider

Symptoms:
Some iRule commands (such as relate_server) fail when used in conjunction with Message Routing Protocol (MRP) SIP configurations using message routing transport.

Conditions:
-- MRP SIP configuration uses transport-config.
-- iRule command 'relate_server' is configured on the corresponding virtual server.

Impact:
iRule commands such as relate_server cannot be used with MRF SIP.

Workaround:
None.

752077-1 : Kerberos replay cache leaks file descriptors

Component: Access Policy Manager

Symptoms:
APMD reports 'too many open files' error when reading HTTP requests:

-- err apmd[15293]: 01490000:3: HTTPParser.cpp func: "readFromSocket()" line: 113 Msg: epoll_create() failed [Too many open files].
-- err apmd[15293]: 01490000:3: ApmD.cpp func: "process_apd_request()" line: 1801 Msg: Error 3 reading/parsing response from socket 1498. strerror: Too many open files, queue size 0, time since accept

There are file descriptor dumps in /var/log/apm showing many deleted files with name krb5_RCXXXXXX:

-- err apmd[15293]: 01490264:3: 1492 (/shared/tmp/krb5_RCx8EN5y (deleted)) : cloexec, Fflags[0x8002], read-write
-- err apmd[15293]: 01490264:3: 1493 (/shared/tmp/krb5_RCnHclFz (deleted)) : cloexec, Fflags[0x8002], read-write
-- err apmd[15293]: 01490264:3: 1494 (/shared/tmp/krb5_RCKGW8ia (deleted)) : cloexec, Fflags[0x8002], read-write

Conditions:
This failure may happen if the access policy uses Kerberos authentication, Active Directory authentication, or Active Directory query. The conditions under which the Kerberos replay cache leaks is unknown.

Impact:
APM end users experience intermittent log on issues.

Workaround:
None.

751451-2 : When upgrading to v14.0.0 or later, the 'no-tlsv1.3' option is missing from HTTPS monitors automatically created server SSL profiles

Component: Local Traffic Manager

Symptoms:
If there are HTTPS monitor objects that were created using BIG-IP software v12.x, when the BIG-IP is upgraded directly to v14.0.0 or later, the operation automatically creates server SSL profiles for the HTTPS monitors as needed. Those server SSL profile objects do not have 'no-tlsv1.3' included in their 'options' configuration.

Conditions:
-- Having HTTPS monitors configured in v12.x before upgrading.
-- Directly upgrading from v12.x to v14.0.0 or later

Impact:
TLSv1.3 gets enabled on the server SSL profiles.

Workaround:
-- To avoid this issue, upgrade from v12.x to v13.x, and then upgrade to v14.0.0 or later

-- To mitigate this issue, modify the affected profile to disable TLSv1.3.

751409-7 : MCP Validation does not detect when virtual servers differ only by overlapping VLANs

Component: TMOS

Symptoms:
It is possible to configure two virtual servers with the same address, port, and route domain, and have them overlap only in VLANs. MCP does not detect the overlap.

Errors like this may be seen in the ltm log:

err tmm1[29243]: 01010009:3: Failed to bind to address

Conditions:
Two (or more) virtual servers with the same address, port, and route domain, and have them overlap only in VLANs

Impact:
Traffic does not get routed properly.

Workaround:
There is no workaround other than ensuring that virtual servers that have the same address, port, and route domain have no overlap of VLANs.

750705-3 : LTM logs are filled with error messages while creating/deleting virtual wire configuration

Component: Local Traffic Manager

Symptoms:
LTM logs are filled with error messages when creating/deleting virtual wire config.

Conditions:
Virtual wire is created and then deleted.

Impact:
Error messages are getting logged to ltm.

750588-3 : While loading large configurations on BIG-IP systems, some daemons may core intermittently.

Component: TMOS

Symptoms:
When manually copying a large config file and running 'tmsh load sys config' on specific hardware BIG-IP platforms, multiple cores may be observed from different daemons.

Conditions:
This has been observed on i4800 platforms when the 'management' provisioning (corresponding to the provision.extramb DB key) is set to 500 MB or less.

Impact:
The mcp daemon may core and all daemons on the BIG-IP system may be restarted.

Workaround:
Set db key 'provision.extramb' to 1024 or greater.

749757-1 : -s option in qkview help does not indicate maximum size

Component: TMOS

Symptoms:
When running qkview with the -h option to obtain help, the -s (size) option is incorrectly rendered.

It should read:

[ -s <max file size> range:0-104857600 Bytes ]

Conditions:
-- Running qkview -h.
-- Viewing the -s (size) option help.

Impact:
The measurement size, bytes, is missing, which might result in confusion.

Workaround:
Use the -s option as normal, but be advised that the number should be in bytes, and that the maximum number is 104857600.

749528-8 : IVS connection on VLAN with no floating self-IP can select wrong self-IP for the source-address using SNAT automap

Component: Service Provider

Symptoms:
Under certain conditions the wrong self-IP can be selected as a source address for connections from an Internal Virtual Server to remote servers.

Conditions:
- Using an Internal Virtual Server (IVS).
- The VLAN being used to connect from the IVS to the server does not have a floating self-IP configured.
- At least one other VLAN has a floating self-IP configured.
- The primary virtual server that connects to the IVS is using SNAT automap.

Impact:
IVS traffic might not be routed properly.

Workaround:
- Configure a floating self-IP on the IVS server side VLAN.
or
- Use a SNAT pool instead of automap.

749332-2 : Client-SSL Object's description can be updated using CLI and with REST PATCH operation

Component: TMOS

Symptoms:
REST PUT fails to update the object description when proxy-ca-cert and proxy-ca-key are not configured, and triggers an error:
SSL forward proxy RSA CA key is missing.

Conditions:
Issue is seen only with REST PUT operation, and when proxy-ca-cert and proxy-ca-key are not configured.

Impact:
REST PUT operation cannot be used to update/modify the description.

Workaround:
You can use either of the following:

-- You can use TMSH to update/modify the description, even if proxy-ca-cert and proxy-ca-key are not configured.

-- You can also use PATCH operation and send only the required field which need modification.

748886-3 : Virtual server stops passing traffic after modification

Component: Local Traffic Manager

Symptoms:
A virtual server stops passing traffic after changes are made to it.

Conditions:
-- Virtual server is using a port-list or address-list
-- High availability (HA) environment with multiple traffic groups
-- A change is made to the virtual server

Impact:
Every time you make changes to the virtual server, the traffic-group for the virtual address is changed, and traffic goes down.

748355-5 : MRF SIP curr_pending_calls statistic can show negative values.

Component: Service Provider

Symptoms:
Certain irregular SIP message patterns may produce an erroneous curr_pending_calls value that can drop below zero and underflow.

Conditions:
Uncommon message flows like re-transmitted INVITE or OK responses can trigger the issue, which may be brought about at times by lost packets when using UDP.

Impact:
SIP curr_pending_calls may show incorrect values.

746984-5 : False positive evasion violation

Component: Application Security Manager

Symptoms:
When Referer header contains a backslash character ('\') in query string portion, 'IIS backslashes' evasion technique violation is raised.

Conditions:
-- 'Url Normalization' is turned on and 'Evasion Techniques Violations' is enabled.
-- Referer header contains a backslash character ('\') in query string part.

Impact:
False positive evasion technique violation is raised for Referer header.

Workaround:
Turn off 'Url Normalization' on the 'Normalization Settings' section of the 'referer' property on the HTTP Header Properties screen.

746758-1 : Qkview produces core file if interrupted while exiting

Component: TMOS

Symptoms:
If, during qkview operation's exit stage, it is interrupted (with Ctrl-C for example), it produces a core file.

Conditions:
-- Qkview is exiting.
-- The qkview operation receives an interrupt.

Impact:
A core file is produced.

Workaround:
When closing qkview, or if it is closing, do not interrupt it; wait for it to exit.

744924-2 : Bladed unit goes offline after UCS install

Component: TMOS

Symptoms:
Unit goes offline after UCS install. Secondary blades go offline. This lasts about a minute, and then the system goes back online.

Conditions:
After UCS install.

Impact:
-- Limited high availability (HA) capabilities (failover, sync, mirroring, etc.).
-- Cluster reduced to a single blade immediately after UCS install, which might impact performance.

Workaround:
None.

744743-2 : Rolling DNSSEC Keys may stop generating after BIG-IP restart

Component: Global Traffic Manager (DNS)

Symptoms:
Rolling DNSSEC Keys may stop generating when a BIG-IP system restart.

Conditions:
BIG-IP system gets restarted by calling 'bigstart restart' command.

Impact:
Rolling DNSSEC keys can stop generating.

Workaround:
None.

744316-6 : Config sync of APM policy fails with Cannot update_indexes validation error.

Component: Access Policy Manager

Symptoms:
Config sync operation fails for APM policy when policy item of same name points to different agent on source and target

The system posts errors similar to the following:

Sync error on rfang-vemgmt.lab.labnet.com: Load failed from /Common/rfang-ve-3mgmt.lab.labnet.com 01070734:3: Configuration error: DB validation exception, unique constraint violation on table (access_policy_item_agent) object ID (/Common/resm_act_message_box_1 /Common/resm_act_message_box_ag_1). A duplicate value was received for a non-primary key unique index field. DB exception text (Cannot update_indexes/checkpoint DB object, class:access_policy_item_agent status:13)"

Conditions:
This occurs in the following scenario:

1. Configure a failover device group containing two BIG-IP systems.
2. Create an APM access profile on one unit.
  + Launch VPE for the policy.
  + Add a macro.
  + In macro add an agent, e.g., Message box.
  + Add macro to the main policy.
3. Initiate config sync to another device.
4. On one BIG-IP system, add another Message box agent using the same macro. On the other BIG-IP system, make a copy of the access profile.
5. On either BIG-IP system, initiate another config sync operation.

Impact:
Unable to sync configuration in a failover device group.

Workaround:
You can work around this using the following procedure:

1. On the device receiving the config sync, delete the APM policies that contain the referenced APM policy items.
2. Perform an overwrite-config-sync operation from the sending device to this device.

743950-5 : TMM crashes due to memory leak found during SSL OCSP with C3D feature enabled

Component: Local Traffic Manager

Symptoms:
TMM raises a segmentation violation and restarts.

Conditions:
-- Set up client-side and server-side SSL with:
+ Client Certificate Constrained Delegation (C3D) enabled.
+ OCSP enabled.

-- Supply SSL traffic.

Impact:
Memory leaks when traffic is supplied. When traffic intensifies, more memory leaks occur, and eventually, tmm raises a segmentation fault, crashes, and restarts itself. All SSL connections get terminated. Traffic disrupted while tmm restarts.

Workaround:
Disable C3D.

742764-2 : The raccoon daemon is spawned more then once on startup, one fails and cores.

Component: TMOS

Symptoms:
On BIG-IP startup tmipsecd starts a racoon daemon for each route domain, including the default rd 0.

If for any reason racoon fails to fully start, tmipsecd will start another instance of racoon.

When this occurs, one or both of them may crash and create a core file.

Conditions:
-- BIG-IP becomes Active or racoon is (re)started.
-- IPsec does not have to be configured for this failure to occur.

Impact:
IPsec IKEv1 tunnels might delay starting while racoon restarts.

742753-5 : Accessing the BIG-IP system's WebUI via special proxy solutions may fail

Component: TMOS

Symptoms:
If the BIG-IP system's WebUI is accessed via certain special proxy solutions, logging on to the system may fail.

Conditions:
This issue is known to happen with special proxy solutions that do one of the following things:

- Remove the Referer header.

- Modify the HTTP request in such a way that the Referer and Host headers no longer tally with one another.

Impact:
Users cannot log on to the BIG-IP system's WebUI.

Workaround:
As a workaround, you can do any of the following things:

- Access the BIG-IP system's WebUI directly (i.e., bypassing the problematic proxy solution).

- Modify the proxy solution so that it does not remove the Referer header (this is only viable if the proxy does not alter the Host header).

- Modify the proxy solution so that it inserts compatible Referer and Host headers.

742603-5 : WebSocket Statistics are updated to differentiate between client and server sides

Component: Local Traffic Manager

Symptoms:
The WebSocket feature has statistics that records the number of each type of frame seen. These statistics do not differentiate between client and server sides.

Conditions:
The WebSocket profile is used to add WebSocket protocol parsing.

Impact:
WebSocket Traffic Statistics may be misleading

Workaround:
None.

742419-4 : BIG-IP NIC teaming of SR-IOV interfaces does not work under VMware ESXi

Component: TMOS

Symptoms:
Configuring multiple SR-IOV interfaces into a trunk does not function correctly when running BIG-IP as a guest under VMware ESXi. The interface will show as uninitialized.

Conditions:
A system that passes SR-IOV virtual functions directly to a BIG-IP guest when running on VMware ESXi.

Impact:
The trunk will fail to initialize.

Workaround:
None.

742105-3 : Displaying network map with virtual servers is slow

Component: TMOS

Symptoms:
The network map loads slowly when it contains lots of objects.

Conditions:
Load the network map in a configuration that contains 1000 or more objects.

Impact:
The network map loads very slowly.

Workaround:
None.

741702-2 : TMM crash

Component: TMOS

Symptoms:
TMM crashes during normal operation.

Conditions:
-- This can occur while passing normal traffic.
-- In this instance, APM and LTM are configured.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

739820-7 : Validation does not reject IPv6 address for TACACS auth configuration

Component: TMOS

Symptoms:
TACACS authentication does not support IPv6 address for the authentication server, but both GUI and TMSH allow IPv6 addresses to be configured for TACACS. Such configurations may result in failed logins with messages in /var/log/secure like

Aug 8 10:47:39 gtm-13108-174 err httpd[5948]: pam_tacplus: skip invalid server: 2001::1001:1001 (invalid port: no digits)

Conditions:
Use the GUI or TMSH to create or modify a TACACS server

Impact:
Remote authentication will fail unless a second server is configured with IPv4 address.

Workaround:
Do not configure IPv6 address for TACACS server

739553-5 : Setting large number for Wide IP Persistence TTL breaks Wide IP persistence

Component: Global Traffic Manager (DNS)

Symptoms:
Wide IP persistence is not working. Previous Wide IP persistence records are cleared.

Conditions:
This occurs when the Wide IP Persistence TTL plus the persist-record creation time is greater than 4294967295.

Impact:
Wide IP persistence does not work.

Workaround:
There is no workaround other than not setting Wide IP Persistence TTL to a number greater than 4294967295.

739118-5 : Manually modifying a self IP address in bigip_base.conf file and reloading the configuration results in routing misconfiguration

Component: TMOS

Symptoms:
Changing existing self IP addresses in bigip_base.conf file directly. After uploading the changed configuration file, BIG-IP routing service provides out of date Self IP route information to dependent services.

Conditions:
- Self IP address is configured on the BIG-IP system.
- Manually change the IP address of a self IP in bigip_base.conf file.
- Load changed configuration via tmsh.

Impact:
Different services have different route information:
-- tmsh table - has the old route.
-- Dynamic routing - hHas the old and new routes.
-- Kernel table - has the new route.

Workaround:
There are two workarounds, preventive and corrective.
Preventive:
Do not manually change self IP addresses in bigip_base.conf file. It is not recommended way to add/change BIG-IP configuration. Use GUI or tmsh instead.

Corrective:
If changed configuration is uploaded. In GUI or tmsh, delete changed self IP address, and then create a self IP address with old IP address and delete it as well. Now, all affected routes are removed.

738547-4 : SAML Sax Parser returns error when importing metadata file that contains certain UTF-8 encoded characters other than ASCII

Component: Access Policy Manager

Symptoms:
When SAML metadata file that contains certain UTF-8 characters other than ASCII is imported, SAML SAX Parser returns error

Conditions:
When SAML metadata file contains certain UTF-8 characters other than the ASCII set,

Impact:
SAML metadata file is not imported, and the system reports an error. SAML configuration on BIG-IP systems is impacted.

Workaround:
Remove the non-ASCII UTF-8 characters, and try the import operation again.

737739-2 : Bash shell still accessible for admin even if disabled

Component: TMOS

Symptoms:
With the administrator role, you have an option in TMUI to disable or restrict terminal access. If you disable or restrict access, the corresponding REST endpoint is neither disabled nor restricted.

Conditions:
Use TMUI as the admin, or as a user with the administrator role, and either of the following:
-- Disable terminal access.
-- Restrict access to TMSH.

Impact:
Users with the Administrator role can obtain shell access via REST.

With terminal access disabled:
-- If you attempt to login using SSH, you will not be to do so.
-- If you make a POST request to the /mgmt/tm/util/bash endpoint with a body that includes a command to run, that command will be run.

With access to TMSH restricted:
-- A POST request to the /mgmt/tm/util/bash endpoint that includes a body with a command to run will be run.

Workaround:
None.

730852-1 : The tmrouted repeatedly crashes and produces core when new peer device is added

Component: TMOS

Symptoms:
There is a tmrouted crash when new peer device is added.

Conditions:
The conditions under which this occurs are unknown.

Impact:
Core produced. Tmrouted crashes repeatedly. Dynamic routing for all route domains is temporarily disrupted.

Workaround:
Have MCP force load as described in K13030: Forcing the mcpd process to reload the BIG-IP configuration (https://support.f5.com/csp/article/K13030).

725646-2 : The tmsh utility cores when multiple tmsh instances are spawned and terminated quickly

Component: TMOS

Symptoms:
A tmsh core occurs when multiple tmsh instances are spawned and terminated quickly

/var/log/kern.log:
info kernel: tmsh[19017]: segfault ...

system messages in /var/log/messages:
notice logger: Started writing core file: /var/core/-tmsh ...

/var/log/audit:
notice -tmsh[19010]: 01420002:5: AUDIT - pid=19010 ...

Conditions:
This issue occurs intermittently in the following scenario:

1. Open multiple instances of tmsh using the following command pattern:
tmsh
run util bash
tmsh
run util bash
tmsh
run util bash
tmsh
run util bash
...
2. Quickly terminate them using Ctrl-D or by closing terminal.

Impact:
The tmsh utility crashes and produces a core file in the /shared/core directory. The BIG-IP system remains operational.

Workaround:
Restart tmsh if the problem occurs.

To prevent the issue from occurring: Do not quickly terminate tmsh instances using Ctrl-D.

724653-3 : In a device group, a non-empty partition can be deleted by a peer device during a config sync

Component: TMOS

Symptoms:
In a device cluster, a BIG-IP administrator can add a non-synced object to a partition on one device, then delete that partition on a peer device, syncing the delete (this is assuming the partition is empty on the peer).

Conditions:
-- Two or more devices in a device service cluster.
-- Using partitions that contain only non-synced objects.
-- Deleting the partition on a peer and syncing the changes to the other devices.

Impact:
The partition is deleted on the peer device, even though it still contains non-synced objects.

724327-3 : Changes to a cipher rule do not immediately have an effect

Component: Local Traffic Manager

Symptoms:
If a cipher rule is changed, and a cipher group that uses the rule is attached to an SSL profile, the change does not take effect until something else on the SSL profile changes.

Conditions:
-- A cipher group is used by an SSL profile.
-- One of its cipher rules changes.

Impact:
Unexpected behavior occurs because the cipher rule change does not take effect immediately.

Workaround:
After changing the cipher rule that's used by a cipher group, make a change to any SSL profile that uses the associated cipher group.

723306-7 : Error in creating internal virtual servers, when address 0.0.0.0 exists on different partition

Component: Local Traffic Manager

Symptoms:
Loading correct configuration with 'tmsh load /sys config' fails. The error message appears similar to the following:

01070726:3: Virtual Address /test/0.0.0.0 in partition test cannot be referenced by Virtual Server /Common/test-internal in partition Common.
Unexpected Error: Loading configuration process failed.

Conditions:
Creating internal virtual server, when 0.0.0.0 address exists on another partition.

Impact:
Inability to load config, with created internal virtual server.

Workaround:
Create internal virtual server first; then create the 0.0.0.0 address on a different partition.

723112-8 : LTM policies does not work if a condition has more than 127 matches

Component: Local Traffic Manager

Symptoms:
LTM policies do not work if number of matches for a particular condition exceeds 127.

Conditions:
LTM policy that has a condition with more than 127 matches.

Impact:
LTM policy does not match the expected condition.

Workaround:
There is no workaround at this time.

720610-3 : Updatecheck logs bogus 'Update Server unavailable' on every run

Component: TMOS

Symptoms:
The updatecheck operation erroneously logs that the Update Server is unavailable on every run, successful or not.

Conditions:
The BIG-IP system is configured to run the Automatic Update Check feature.

Impact:
Misleading messages in the log file, implying that the update server is not available.

Workaround:
None.

718573-3 : Internal SessionDB invalid state

Component: TMOS

Symptoms:
TMM crashes.

Conditions:
SessionDB is accessed in a specific way that results in an invalid state.

Impact:
TMM crashes. Traffic disrupted while tmm restarts.

Workaround:
None.

718291-3 : iHealth upload error does not clear

Component: TMOS

Symptoms:
If an error occurs that sets the iHealth error string, then this string is never cleared.

Conditions:
Setting an invalid hostname for db variable proxy.host.

Impact:
The system reports the following error string: curl: (56) Recv failure: Connection reset by peer. This error message is never cleared, despite running a successful upload. The bogus error message could result in unnecessary confusion after a successful upload.

Workaround:
To clear the error message, run the following command:
/usr/bin/guishell -c "update diags_ihealth_request set error_str='';"

718230-8 : Attaching a BIG-IP monitor type to a server with already defined virtual servers is not prevented

Component: Global Traffic Manager (DNS)

Symptoms:
In certain circumstances, attaching a BIG-IP monitor type to a non-BIG-IP server with already defined virtual servers is allowed by the system when it should not be allowed.

Conditions:
Attempting to attach a BIG-IP monitor type to a non-BIG-IP server.

Impact:
The BIG-IP monitor can be added to a non-BIG-IP server without error. This causes a configuration load error, such as after a reboot, tmm restart, or tmsh load sys config, and results in an error message such as:

-- localhost emerg load_config_files: "/usr/bin/tmsh -n -g load sys config partitions all gtm-only" - failed. -- Loading schema version: 12.1.3 Loading schema version: 12.1.5.1 01071033:3: Server (/Common/generic_server_object) contains monitor (/Common/bigiptest) which is an invalid type. Unexpected Error: Loading configuration process failed.

Workaround:
None.

717806-1 : In the case of 'n' bigd instances, uneven CPU load distribution is seen when a high number of monitors are configured

Component: Local Traffic Manager

Symptoms:
Load average peaks are observed when a high number of monitors (>= 200) are configured across 'n' bigd instances.

Conditions:
When a high number of monitors are configured across 'n' bigd instances. CPU load peaks appear and disappear periodically.

Impact:
No performance impact

Workaround:
None

717174-3 : WebUI shows error: Error getting auth token from login provider★

Component: Device Management

Symptoms:
Occasionally, the BIG-IP Admin Utility TMUI fails to function correctly and produces the following error:
Error getting auth token from login provider.

This occurs when the BIG-IP REST Daemon restjavad fails to start up properly.

Conditions:
This error most often occurs on the first or second boot after upgrade, and more often on Virtual Edition BIG-IP platforms running on oversubscribed or slow hypervisors.

Impact:
TMUI and any other BIG-IP system components that rely on REST Workers such as: OpenID Connect key rotation discovery, portions of the TMOS Web Configuration Utility, and Guided Configuration (AGC and WGC) fail to function properly.

Workaround:
Restarting the BIG-IP REST daemons restjavad and restnoded will usually correct the problem. To do so, connect to the SSH console and issue the following two commands:

bigstart restart restjavad
bigstart restart restnoded

716701-4 : In iControl REST: Unable to create Topology when STATE name contains space

Component: Global Traffic Manager (DNS)

Symptoms:
Cannot use iControl REST to create topology records when whitespace exist in a STATE name.

Conditions:
STATE name contains a space (e.g., New Mexico).

Impact:
Unable to create a topology record using iControl REST.

Workaround:
Use TMSH with quotes or escaping to create topology records for a STATE with whitespace in the name.

714216-4 : Folder in a partition may result in load sys config error

Component: TMOS

Symptoms:
If you run the command 'tmsh load sys config current-partition' in a partition that includes a folder, the command may return an error.

Conditions:
This occurs in the following scenario:
-- Create a partition.
-- Create a folder in that partition.
-- In the newly-created partition.
-- Save the configuration with the command 'save sys conf'.
-- In the same partition, run the following command to load the configuration: 'tmsh load sys config current-partition'.

Impact:
The load configuration process fails with an error that the folder does not exist.

Workaround:
There is no workaround at this time.

713183-4 : Malformed JSON files may be present on vCMP host

Component: TMOS

Symptoms:
Malformed JSON files may be present on vCMP host.

Conditions:
All needed conditions are not yet defined.

- vCMP is provisioned.
- Guests are deployed.
- Software versions later than 11.6.0 for both guest/host may be affected.

Impact:
Some vCMP guests may not show up in the output of the command:
tmsh show vcmp health

In addition, there might be files present named using the following structure:
/var/run/vcmpd/<guestname>/json/sys-(ha-status|provision|software).json.bad.

There is no functional impact to the guests or to the host, other than these lost tables, which are provided as a convenience to the vCMP host administrator.

Workaround:
None.

712542-5 : Network Access client caches the response for /pre/config.php

Component: Access Policy Manager

Symptoms:
The Network Access client caches the response for /pre/config.php.

Conditions:
-- APM is provisioned.
-- Network Access is configured.

Impact:
Caching the response for /pre/config.php might reveal configuration information. However, a URL is public information by definition. The only sensitive information revealed are server names, which have to be revealed in order for the client to know where to connect.

Workaround:
None.

712241-3 : A vCMP guest may not provide guest health stats to the vCMP host

Component: TMOS

Symptoms:
A vCMP guest usually provides the vCMP host with some guest health statistics as a convenience to the vCMP host administrator. These stats are:
-- mgmt/tm/sys/ha-status
-- mgmt/tm/sys/software/status
-- mgmt/tm/sys/software/provision

These tables are created by the host when host vcmpd queries the guest over the vmchannel using REST.

These RESTful queries may sometimes fail, causing the queried vCMP guest to be omitted in the display of the output of the following command: $ tmsh show vcmp guest

Conditions:
-- vCMP provisioned.
-- Guests are deployed.
-- Host vcmpd queries the guest over the vmchannel using REST.

Impact:
There is no functional impact to the guests or to the host, other than these lost tables.

-- Some vCMP guests may not show up in the output of the following command: tmsh show vcmp health
-- Some guests may appear with the wrong status in the GUI. Such as being grey when it should be green.
-- Files containing guest information, kept in:
/var/run/vcmpd/<guestname>/json/(sys-ha-status.json|sys-provision.json|sys-software.json) may be missing from that directory.
-- There might be files present there named using the following structure:
/var/run/vcmpd/<guestname>/json/sys-(ha-status|provision|software).json.bad.

Workaround:
There is no workaround at this time.

709952-4 : Disallow DHCP relay traffic to traverse between route domains

Component: Local Traffic Manager

Symptoms:
DHCP traffic can traverse between route domains, e.g., when working with a route domain with a parent. Under certain circumstances, this is not desired.

Conditions:
DHCP relay in use on a route domain with a parent relationship or strict isolation disabled.

Impact:
The DHCP server side flow might get established to the parent route domain, and will persist even after the route in its own route domain becomes available again.

Workaround:
There is no workaround at this time.

708680-3 : TMUI is unable to change the Alias Address of DNS/GTM Monitors

Component: Global Traffic Manager (DNS)

Symptoms:
TMUI (the GUI) is unable to change the Alias Address of DNS/GTM Monitors.

Conditions:
-- Using the GUI.
-- DNS/GTM monitors with alias address.
-- Attempting to change the Alias Address.

Impact:
Cannot change the Alias Address.

Workaround:
Use tmsh.

707294-4 : When BIG-IP as OAuth AS has missing OAuth Profile in the Access profile, the error log is not clear

Component: Access Policy Manager

Symptoms:
When the BIG-IP system configured as OAuth AS has a missing OAuth Profile in the Access profile, the error log is not clear. It shows an error indicating 'OAuth mode is not set' instead of showing 'OAuth Profile is not configured'. In this case, the error 'OAuth mode is not set' means that the OAuth Profile is not associated in the Access profile of the virtual server acting as BIG-IP OAuth Authentication server.

Conditions:
-- The BIG-IP system is configured as OAuth AS.
-- The Access profile is not configured with OAuth profile.

Impact:
Confusing error message that leads to delay in troubleshooting the OAuth configuration.

Workaround:
Configure an OAuth Profile in the Access profile of the virtual server acting as BIG-IP OAuth AS.

705869-3 : TMM crashes as a result of repeated loads of the GEOIP database

Component: Global Traffic Manager (DNS)

Symptoms:
TMM crashes.

Conditions:
Repeatedly loading the GeoIP database in rapid succession.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Don't do repeated load of GeoIP Database.

705387-3 : HTTP/2, ALPN and SSL

Component: Local Traffic Manager

Symptoms:
The SSL filter will not always add the ALPN extension.

Conditions:
If the negotiated cipher is not HTTP/2 compliant, the SSL filter may not add the ALPN extension.

Impact:
The failure to add the ALPN extension may result in the failure to negotiate the proper protocol.

Workaround:
There is no workaround at this time.

703678-3 : Cannot add 'secure' attributes to several ASM cookies

Component: Application Security Manager

Symptoms:
There is an option to add 'secure' attribute to ASM cookies.
There are some specific cookies which this option does not apply on.

Conditions:
-- ASM policy is attached to the virtual server.
-- Internal parameter 'cookie_secure_attr' flag is enabled, along with either of the following:
   + Using HTTPS traffic.
   + The 'assume https' internal parameter is also enabled.
-- Along with one of the following:
   + Web Scraping' feature is enabled.
   + 'Bot Detection' feature is enabled.
   + The 'brute force' feature is enabled using CATPCHA.

Impact:
Some cookies do not have the 'secure' attributes.

Workaround:
None.

703226-2 : Failure when using transactions to create and publish policies

Component: TMOS

Symptoms:
Use batch mode transactions to create Virtual Servers with Policies containing rules.

Conditions:
Create and publish in the same transaction a Policy containing rules.

Impact:
Operation fails.

This occurs because the system is trying to look up a policy that does not exist because the 'create' operation is not yet complete. This might happen when the create and publish operations occur simultaneously, which might happen in response to scripts from iApps, batch mode creation of policies, UCS load, upgrade operation--all try to create domain trust, and all might include the policy create in the same operation.

Workaround:
Separate the create Policy and publish Policy operations into two transactions when the Policy contains rules.

700639-2 : The default value for the syncookie threshold is not set to the correct value

Component: Local Traffic Manager

Symptoms:
The default value for connection.syncookies.threshold should be set to 64000. Instead, this value defaults to 16384.

Conditions:
This issue may be encountered when a virtual server uses syncookies.

Impact:
The connection.syncookies.threshold value will be lower than intended, possibly resulting in lower performance.

Workaround:
Use tmsh to manually set the threshold value:
# tmsh modify sys db connection.syncookies.threshold value 64000

696363-4 : Unable to create SNMP trap in the GUI

Component: TMOS

Symptoms:
Trying to create a SNMP trap may fail in the GUI with the following error message: An error has occurred while trying to process your request.

Conditions:
-- Trap destinations are configured using the GUI: When trap destinations are configured in the GUI, the trap name is generated using the destination IP address.
-- Traps of the same destination address were previously created and deleted.

Impact:
GUI parameter checking does not work as expected. BIG-IP Administrator is unable to create a SNMP trap session.

Workaround:
To work around this issue when using the GUI, remove all traps that have the same destination address as the new one that failed. Then re-add your destination.

Tip: You can use tmsh to create/delete/modify SNMP traps, which enables viewing of the generated names, making it easier to understand what error has occurred.

690928-3 : System posts error message: 01010054:3: tmrouted connection closed

Component: TMOS

Symptoms:
Beginning in BIG-IP 12.0.0, the tmrouted process pushes dynamic routes directly to the Traffic Management Microkernel (TMM). This message indicates the system is shutting down and is expected behavior during the reboot or shutdown process. The appearance of this message on a stable running system may indicate an issue with tmrouted functionality.

System posts the following message in /var/log/ltm: 01010054:3: tmrouted connection closed

Conditions:
This message occurs when all of the following conditions are met:

-- You have configured the BIG-IP system to use dynamic routing.
-- The BIG-IP system is in the process of shutting down or rebooting.

Impact:
This message is benign, unless you view the message on a stable running system. In this case, the message may indicate an issue with the tmrouted process.

Workaround:
None.

689147-3 : Confusing log messages on certain user/role/partition misconfiguration when using remote role groups

Component: TMOS

Symptoms:
When using remote role groups to set user/role/partition information, user login fails, but logs in /var/log/secure indicate that authentication was successful.

Errors similar to the following appear in /var/log/ltm:

-- User restriction error: The administrator, resource administrator, auditor and web application security administrator roles may not be restricted to a single partition.
-- Input error: invalid remote user credentials, partition does not exist, broken-partition

Errors similar to the following appear in /var/log/secure:

tac_authen_pap_read: invalid reply content, incorrect key?

Conditions:
Using remote role groups to set user/role/partition information for remote users, and either of the following:
-- A remote user is configured with the role of administrator, resource administrator, auditor, or web application security administrator, with access to a particular partition, rather than all. (These roles require access to all partitions.)
-- A remote user is configured with partition access set to a partition that does not exist on the BIG-IP system.

Impact:
The messages in /var/log/secure may be confusing and make it more difficult to diagnose the login failure.

Workaround:
Check /var/log/ltm for more specific error messages.

688231-3 : Unable to set VET, AZOT, and AZOST timezones

Component: TMOS

Symptoms:
Unable to set VET, AZOT, and AZOST timezones

Conditions:
This occurs under normal operation.

Impact:
Cannot set these timezones.

Workaround:
Use the following zones with the same offset:

The AZOT timezone is the same offset as
N – November Time Zone.

The AZOST timezone is the same offset as
Z – Zulu Time Zone,
GMT – Greenwich Mean Time,
WET – Western European Time.

The VET timezone is the same offset as
AST – Atlantic Standard Time,
CDT – Cuba Daylight Time, CLT – Chile Standard Time,
EDT – Eastern Daylight Time,
FKT – Falkland Island Time,
Q – Quebec Time Zone.

686783-2 : UlrCat custom database feed list does not work when the URL contains a www prefix or capital letters.

Component: Traffic Classification Engine

Symptoms:
If a UrlCat custom database feed list has URLs containing a www prefix or capital letters, the URLs are not categorized when queried.

Conditions:
The UrlCat custom database feed list with URL containing www prefix or capital letters,

Impact:
Improper classification

Workaround:
Using an iRule can help classify the URL.

686395-3 : With DTLS version1, when client hello uses version1.2, handshake shall proceed

Component: Local Traffic Manager

Symptoms:
With DTLS version1, when client hello uses version1.2, handshake fails with error of :unsupported version".

Conditions:
DTLS version1 handshake:
Handshake version 1.0 . (0xfeff)
Client hello version 1.2(0xfefd)

Impact:
DTLS functionalities.

Workaround:
N/A

683534-3 : 'tmsh show sys connection' command prompt displaying 4 billion connections is misleading

Component: Local Traffic Manager

Symptoms:
The 'tmsh show sys connection' may present a prompt asking you to confirm you want to display ~4 billion (4,294,967,295) connections:

# show sys connection max-result-limit infinite

Really display 4294967295 connections? (y/n)

Conditions:
-- The 'tmsh show sys connection' command is executed with max-result-limit option set to infinite.

Impact:
The value shown in the prompt (4294967295) is misleading, and does not reflect the actual number of connections being handled by the system. The 4294967295 number represents the maximum value the field can hold, not the number of actual connections.

Workaround:
None

675772-2 : IPsec tunnels fail when traffic-selectors share one IPsec interface mode policy

Component: TMOS

Symptoms:
When IPsec tunnels to several different peers are configured using a single ipsec-policy in interface mode, the tunnels will be unreliable or may not start.

Conditions:
Several traffic-selectors that are associated with different tunnels reference the same interface mode IPsec policy.

Note: It is not possible to create this configuration when the IPsec policy is tunnel or transport mode.

Impact:
IPsec tunnels may start but fail after a period of time. In other cases, IPsec tunnels may not start at all.

Workaround:
(1) Create a unique ipsec-policy configuration object for each remote peer and traffic-selector.
(2) Use tunnel mode. It is not possible to create this configuration when the IPsec policy is tunnel or transport mode.

674026-4 : iSeries AOM web UI update fails to complete.★

Component: TMOS

Symptoms:
Upon upgrading a BIG-IP version, AOM web UI updates can sometimes fail.

Conditions:
This occurs when upgrading a BIG-IP system's software version on iSeries platforms.

Impact:
After booting to a new version, the AOM web UI update fails with an error message in /var/log/ltm similar to the following:

err bmcuiupdate[20824]: Failed updated AOM web UI with return code 2

Workaround:
At the bash prompt run:

/etc/lcdui/bmcuiupdate

This triggers another upgrade attempt, and the result is logged in /var/log/ltm. This should not be service-affecting.

673573-1 : tmsh logs boost assertion when running child process and reaches idle-timeout

Component: TMOS

Symptoms:
An idle-timeout occurs while running a sub-process in interactive mode, resulting in a log message. tmsh logs a benign but ominous-looking critical error to the console and to /var/log/ltm if a tmsh command reaches idle timeout and a spawned sub-process is still running.

The errors in /var/log/ltm begin with the following text:
'boost assertion failed'

Conditions:
-- tmsh command reaches idle timeout.
-- Spawned sub-process is still running.

Impact:
Although the wording indicates a failure, the message is benign and you can safely ignore it.

Workaround:
None.

672963-2 : MSSQL monitor fails against databases using non-native charset

Component: Local Traffic Manager

Symptoms:
MSSQL monitor is fails against databases using non-native charset.

Conditions:
MSSQL monitor configured to monitor a database that is using non-native charset (ISO-8859-1).

Impact:
MSSQL monitoring always marks node / member down.

Workaround:
On BIG-IP v13.x and v14.0.x, you can work around this issue using the following steps:

1. Log in to the BIG-IP console into a bash prompt.

2. Run the following command:
mount -o remount,rw /usr; ln -s /usr/java-64/openjdk/lib/charsets.jar /usr/java/openjdk/lib/charsets.jar; mount -o remount,ro /usr

3. Restart bigd:
bigstart restart bigd

671545-2 : MCPD core while booting up device with error "Unexpected exception caught"

Component: TMOS

Symptoms:
Mcpd crashes.

Conditions:
The file-store path is missing with specific configuration file which is needed by mcpd while booting.

Impact:
Traffic and control plane disrupted while mcpd restarts.

663946-7 : The vCMP host may drop IPv4 DNS requests as DoS IPv6 atomic fragments

Component: Advanced Firewall Manager

Symptoms:
On a vCMP platform with host and guest using different BIG-IP versions, when DNS is under load greater than the AFM-configured rate limit, certain IPv4 packets are categorized as IPv6 atomic fragments and may be dropped due to rate limits.

Conditions:
-- vCMP platform with host and guest using different BIG-IP versions.
-- AFM enabled.
-- DNS load greater than AFM-configured rate limit for IPv6 atomic fragments (default 10 KB).

Impact:
May result in lower than expected DNS load test results.

Workaround:
You can use any of the following workarounds:
-- Disable AFM.
-- Increase detection limit for IPv6 atomic fragments under AFM.
-- Disable hardware offload with sys db Dos.VcmpHWdos.

Note: For AFM HW DoS protection, the host and vCMP guest must be the same version, disable hardware DoS checking on the vCMP guest to prevent this issue. To do so, set sys db dos.forceswdos to 'true'.

663754-2 : Modifying the default management port can break internal functionality

Component: Device Management

Symptoms:
Modifying the default management port for httpd 443 (ssl-port) to anything else via tmsh, will break the below functionality :
1. Gossip Framework : REST high availability (HA) sync framework will not work.
2. Licensing via BIG-IQ
3. selfLinks will be wrong

Conditions:
Changing the default management port of BIG-IP for httpd from 443 to anything else.

Impact:
BIG-IP will be unable to provide below functionality :
1. Gossip Framework : REST high availability (HA) sync framework will not work.
2. Licensing via BIG-IQ
3. selfLinks will be wrong
4. iAppLx, SSL Orchestrator, Access Guided Configuration, AS3 will be affected as these modules depends on Gossip

Workaround:
NA

662301-2 : 'Unlicensed objects' error message appears despite there being no unlicensed config

Component: TMOS

Symptoms:
An error message appears in the GUI:
This device is not operational because the loaded configuration contained errors or unlicensed objects. Please adjust the configuration and/or the license, and re-license the device.

Examination of the configuration and license shows that there are no configuration errors or unlicensed configuration objects. The device is operational.

Conditions:
The BIG-IP system is licensed and the configuration loaded.

Impact:
Error message appears in the GUI stating that the device is not operational. However, the device is operational.

Workaround:
On an appliance, restart mcpd by running the following command:

bigstart restart mcpd

On a VIPRION or vCMP guest running on a VIPRION, restart MCPD on all blades by running the following command:

clsh bigstart restart mcpd

Note: This causes a system to go offline while services restart. Traffic disrupted while services restart.

659579-4 : Timestamps in icrd, restjavad, and restnoded logs are not synchronized with the system time

Component: TMOS

Symptoms:
Logs on icrd, restnoded, and restjavad are in the UTC time zone and are not aligned to the system time, which makes it difficult to determine the time during troubleshooting operations.

Conditions:
Checking the icrd, restnoded, and restjavad logs timestamps.

Impact:
Difficult to troubleshoot as the logs are not aligned with system time.

Workaround:
None

658943-3 : Errors when platform-migrate loading UCS using trunks on vCMP guest

Component: TMOS

Symptoms:
During platform migration from a physical BIG-IP system to a BIG-IP vCMP guest, the load fails with one of these messages:

01070687:3: Link Aggregation Control Protocol (LACP) is not supported on this platform. Unexpected Error: Loading configuration process failed.

01070338:3: Cannot create trunk [name of trunk], maximum limit reached Unexpected Error: Loading configuration process failed.

Conditions:
-- The source device is a physical BIG-IP device with one or more trunks with or without LACP in its configuration.
-- The destination device is a vCMP guest.

Impact:
The platform migration fails and the configuration does not load.

Workaround:
You can use one of the following workarounds:

-- Remove all trunks from the source configuration prior to generation of the UCS.

-- Before loading the UCS archive onto the target BIG-IP, edit the archive and remove the trunk configuration from ./config/bigip_base.conf, and then repack the UCS.

-- After the UCS load fails, edit the configuration manually on the destination to remove trunk references, and then reload the configuration.

658850-3 : Loading UCS with the platform-migrate parameter could unexpectedly set or unset management DHCP

Component: TMOS

Symptoms:
When you load a UCS file using the platform-migrate parameter, the mgmt-dhcp value (enabled, disabled, or unset) will overwrite the value on the destination. Depending on the effect, this could change the destination's management IP and default management route.

If the UCS does not have mgmt-dhcp explicitly written out, note that its value is treated as the default for the local system, which varies by the type of system. On Virtual Edition (VE) platforms, the default is to enable DHCP. On all other platforms, the default is to disable DHCP.

Conditions:
This occurs when loading a UCS using the platform-migrate parameter:
tmsh load sys ucs <ucs_file_from_another_system> platform-migrate

Impact:
Changing the mgmt-dhcp value on the destination can result in management changing from statically configured to DHCP or DHCP to statically configured. This can result in loss of management access to the device, requiring in-band or console access.

Workaround:
There are a few ways to avoid this issue:

1. Specify the "keep-current-management-ip" parameter to the "load sys ucs" command, for instance:

tmsh load sys ucs <ucs_file_from_another_system> platform-migrate keep-current-management-ip

Note: The "keep-current-management-ip" parameter is undocumented and will not appear in context help or tab completion.

2. If you want to reset the target device to use a static IP, run the following commands after loading the UCS with the platform-migrate command:

tmsh modify sys global-settings mgmt-dhcp disabled
tmsh create sys management-ip <ip>/<mask>
tmsh delete sys management-route default
tmsh create sys management-route default gateway <ip>

654635-1 : FTP virtual server connections may rapidly reuse ephemeral ports

Solution Article: K34003145

Component: TMOS

Symptoms:
The BIG-IP system reuses ephemeral ports quickly, which might cause connections to fail, because those ports are in TIME-WAIT state on the server.

Conditions:
-- FTP active mode is used.
-- Virtual server source-port change.

-- Running on an affected platform:
--- BIG-IP 5000 series (C109)
--- BIG-IP 7000 series (D110)
--- BIG-IP 10000s/10050s/10200v/10250v (D113, D112)
--- B4300 / B4340N VIPRION blades (A108, A110)

Impact:
FTP active mode connections might fail.

Workaround:
There is no complete workaround. However, you can mitigate the issue using the default setting source-port=preserve on the virtual server.

As alternatives, you can also try the following:
-- Switching client traffic to Passive FTP.
-- Enabling TIME_WAIT reuse on the FTP server, if the operating system supports it.

653210-3 : Rare resets during the login process

Component: Access Policy Manager

Symptoms:
On rare occasions, the login process resets and a NULL sresult message will be logged in /var/log/apm:

-- notice tmm[18397]: 01490505:5: /Common/ltm-apm_main_irules:Common:448568c9: Get license - Unexpected NULL session reply. Resetting connection.

Conditions:
A race condition allows license information to be processed out of order.

Impact:
The system resets the client connection attempt. The APM end user client must retry the login process.

Workaround:
Have the APM end user client retry the login operation.

646768-1 : VCMP Guest CM device name not set to hostname when deployed

Solution Article: K71255118

Component: TMOS

Symptoms:
When you access the vCMP guest instance after you deploy the system, the instance uses the hostname bigip1.

Conditions:
This issue occurs when all of the following conditions are met:

-- The BIG-IP system is running v11.6.0 or earlier.
-- You configure a vCMP guest instance that is running BIG-IP v11.6.0 or later.
-- You have configured the vCMP guest instance with a hostname other than bigip1.
-- You deploy the vCMP guest instance.

Impact:
The vCMP guest does not use the configured hostname.

Workaround:
-- In tmsh, run the following commands, in sequence:

mv cm device bigip1 HOSTNAME
save sys config

-- Rename the device name in the GUI.

640374-2 : DHCP statistics are incorrect

Component: Local Traffic Manager

Symptoms:
DHCP statistics are incorrect if DHCP server is down while a new virtual server is created. And when the DHCP server comes back up, the current pending transactions are incorrect.

Conditions:
-- DHCP relay configured.
-- DHCP server is down while the virtual server is created.

Impact:
The 'current pending transactions' for the DHCP server is incorrect if the DHCP server is down while a new virtual server is created.

Workaround:
None.

639606-1 : If mcpd fails to load DNSSEC keys then signing does not happen and no error logged

Component: TMOS

Symptoms:
MCPD successfully loads configuration when it's not able to decrypt DNSSEC Key generation.

Conditions:
MCPD loads configuration with DNSSEC Key generation encrypted by master key which has been changed.

Impact:
The configuration successfully loads but BIG-IP is not able to sign Resource Records.

632553-5 : DHCP: OFFER packets from server are intermittently dropped

Solution Article: K14947100

Component: Local Traffic Manager

Symptoms:
With a DHCP relay virtual server, OFFER packets from DHCP server are intermittently not forwarded to the client and dropped on BIG-IP.

Conditions:
It is not known exactly what triggers this condition, but it occurs intermittently when the DHCP relay virtual server is in use.

Impact:
Client machines joining the network do not receive DHCP OFFER messages.

Workaround:
Enforce that the serverside flow is getting deleted, e.g. if dhcp server 10.0.66.222 is broken, issue the following tmsh command:

tmsh delete sys connection ss-server-addr 10.0.66.222 cs-server-port 67

631083-5 : Some files in home directory are overwritten on password change

Component: TMOS

Symptoms:
The files

  .bash_logout
  .bash_profile
  .bashrc

in a user's home directory are overwritten when that user's password is changed.

Conditions:
Change a user's password.

Impact:
Customizations to these files would be lost on password change. This only applies to users with advanced shell access.

Workaround:
Back up the files to a different location before making a password change.

627760-7 : Gtm_add operation does not retain same-name DNSSEC keys after synchronize FIPS card

Component: TMOS

Symptoms:
When running gtm_add from one BIG-IP system to another, if the system being added already has the same DNSSEC key (dictated by DNSSEC key name), and you synchronize the FIPS card, then the FIPS card is wiped out (as expected), but the key is not re-added.

Conditions:
-- There is an existing DNSSEC key on one system.
-- A second system has a DNSSEC key of the same name.
-- Run gtm_add, with instructions to synchronize FIPS cards.

Impact:
No DNSSEC key of that name is present on FIPS card.

Workaround:
None.

625807-3 : Tmm cores in bigproto_cookie_buffer_to_server

Component: Local Traffic Manager

Symptoms:
TMM cores on SIGSEGV during normal operation.

Although the exact triggering conditions are unknown, it might that when a connection is aborted in a client-side iRule, the reported log signature may indicate its occurrence:

tmm3[11663]: 01220009:6: Pending rule <irule_name> <HTTP_REQUEST> aborted for <ip> -> <ip>.

Conditions:
Specific conditions that trigger this issue are unknown.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None.

615329-1 : Special Virtual IP configuration required for IPv6 connectivity on some Virtual Edition interfaces

Component: TMOS

Symptoms:
IPv6 virtual servers may not be reachable on specific Virtual Edition (VE) instances, based on the interfaces used by that instance.

Conditions:
VE with IPv6 virtual servers configured. The VE instance must have SR-IOV interfaces, or KVM virtio interfaces backed by macvtap.

Impact:
Special configuration procedure is required.

Workaround:
Follow the defined configuration procedure by explicitly listing the VLANs for which this VIP is enabled. For example, in TMSH:

'modify ltm virtual <name> vlans-enabled'
'modify ltm virtual <name> vlans add { <vlans> }'

608952-1 : MSSQL health monitors fail when SQL server requires TLSv1.1 or TLSv1.2

Component: Local Traffic Manager

Symptoms:
MSSQL health monitor always shows down.

Conditions:
The Microsoft SQL server that is being monitored has disabled support for legacy security protocols, and supports only versions TLSv1.1 and TLSv1.2.

Impact:
MSSQL monitor is unable to perform health checking when SQL Server is configured to require TLSv1.1 or TLSv1.2.

Workaround:
None.

605966-5 : BGP route-map changes may not immediately trigger route updates

Component: TMOS

Symptoms:
When a route-map is used to filter BGP advertisements, changes to the route-map that affect the filtered routes may not trigger an update to the affected routes.

Conditions:
BGP in use with a route-map filtering advertisements.

Impact:
BGP table may not reflect route-map changes until "clear ip bgp" is executed.

Workaround:
Run "clear ip bgp <neighbor>".

603693-2 : Brace matching in switch statement of iRules can fail if literal strings use braces

Solution Article: K52239932

Component: TMOS

Symptoms:
In the TMUI on any iRule editing page, brace matching within a switch statement can fail if a literal string is surrounded with braces.

Conditions:
Use a literal string surrounded with curly braces for a case/pattern within a switch statement.

Impact:
Incorrect brace matching.

Workaround:
Instead of surrounding the literal string with braces, use double quotes.

597955-3 : APM can generate seemingly spurious error log messages

Component: Access Policy Manager

Symptoms:
Internally detected issues can trigger a series of error log messages. The logs look alarming, but can be considered diagnostic in the case there is an actual behavioral issue that needs to be analyzed.

The system reports the following messages in /var/log/apm:
-- err tmm1[11197]: 01490514:3: 00000000: Access encountered error: ERR_VAL. File: ../modules/hudfilter/access/access.c, Function: access_slowpath_security_check, Line: 6648
-- err tmm8[18022]: 01490514:3: 00000000: Access encountered error: ERR_ARG. File: ../modules/hudfilter/access/access.c, Function: access_sanitize_uri, Line: 16406
-- err tmm8[18022]: 01490514:3: 00000000: Access encountered error: ERR_ARG. File: ../modules/hudfilter/access/access.c, Function: access_check_uri_type, Line: 11219
-- err tmm8[18022]: 01490514:3: 00000000: Access encountered error: ERR_ARG. File: ../modules/hudfilter/access/access.c, Function: access_process_state_client_classify_req, Line: 3308
-- err tmm8[18022]: 01490514:3: 00000000: Access encountered error: ERR_ARG. File: ../modules/hudfilter/access/access.c, Function: hud_access_handler, Line: 2311

Conditions:
An internal software API call triggers an unexpected result.

Impact:
Logs might give the appearance of many issues, even if there are no behavioral anomalies.

Workaround:
None.

587821-10 : vCMP Guest VLAN traffic failure after MCPD restarts on hypervisor.

Component: TMOS

Symptoms:
On the affected slot, the vCMP guest is unable to pass traffic to or from the VLANs. If the guest has multiple slots, the CMP state logged in /var/log/tmm on that slot differs from the CMP state logged by other slots of the same guest.

In the vCMP guest, 'tmsh show net interface -hidden' shows 0.x interfaces for the affected slot that differ from the 0.x interfaces shown by 'tmsh show vcmp guest all-properties' on the vCMP hypervisor for the same guest slot.

Conditions:
The MCPD daemon on one of the blades of the vCMP hypervisor crashes or restarts.

Impact:
The vCMP guests that are still running since before the MCPD daemon restarted may be unable to communicate to VLAN networks. Incoming traffic may also be affected, even though the vCMP guest has other functional slots to process traffic.

Workaround:
On the hypervisor, modify the vCMP guest configuration to not run on the affected slot. Wait to confirm the vCMP guest has stopped on the affected slot. Then modify the vCMP guest to run on the previously affected slot.

Alternatively, modify the vCMP guest to the Configured state, and wait to confirm the vCMP guest has stopped on all slots. Then return the vCMP guest to the Deployed state.

582666-1 : TMM spams ltm log with "01010235:2: Inet port find called for pg 1 with invalid cmp state 0"

Component: Local Traffic Manager

Symptoms:
/var/log/ltm is spammed with below shown logs:

Mar 23 08:21:52 slot2/technetium crit tmm[13305]: 01010235:2: Inet port find called for pg 1 with invalid cmp state 0
Mar 23 08:21:53 slot2/technetium crit tmm3[13305]: 01010235:2: Inet port find called for pg 1 with invalid cmp state 0
Mar 23 08:21:53 slot2/technetium crit tmm3[13305]: 01010235:2: Inet port find called for pg 1 with invalid cmp state 0

Conditions:
One or more blades are administratively disabled on a chassis system.

Impact:
Detrimental to TMM performance.

580715-2 : ASM is not sending 64 KB remote logs over UDP

Component: Application Security Manager

Symptoms:
REmote logs are missing. The following log messages appears in bd.log and asm.log:

ASM configuration error: event code L3350 Failed to write to remote logger vs_name_crc 1119927693 LoggingAccount.cpp:3348`remote log write FAILED res = -3 <Failed to send remote message (remote server not responding)> errno <Message too long>.

Conditions:
-- A remote logger configured for UDP.
-- Max message length of 64 KB.

Impact:
Missing logs in the remote logger.

Workaround:
You can use either of the following workarounds:

-- Change the remote logger to TCP.

-- Reduce the message length to 1 KB.

574762-2 : Forwarding flows leak when a routing update changes the egress vlan

Component: Local Traffic Manager

Symptoms:
Forwarding flow doesn’t expire and leaks a connflow object.

Conditions:
Conditions to hit this are a route change on forwarded flows.

Impact:
Memory leak.

Workaround:
None

554506-1 : PMTU discovery from management does not work

Solution Article: K47835034

Component: TMOS

Symptoms:
You encounter connectivity issues to management interface.

Conditions:
MTU on the intermediate route is less than the management interface's MTU and the response packets have the DF flag set.

Impact:
Connectivity issues to management interface.

Workaround:
None.

Note: Although there is no workaround for this module, you can disable auto last hop and configure a default gateway to avoid this issue.

For more information see K52592992: Overview of the Auto Last Hop feature on the management interface, available at
https://support.f5.com/csp/article/K52592992.

550526-5 : Some time zones prevent configuring trust with a peer device using the GUI.

Solution Article: K84370515

Component: TMOS

Symptoms:
AEST, AEDT, ACDT, ACWST, ACWDT, AWST, Asia/Muscat, and AWDT time zones prevent configuring trust with a peer device using the GUI.

Conditions:
-- Setting a BIG-IP system timezone to AEST, AEDT, ACDT, ACWST, ACWDT, AWST, Asia/Muscat, or AWDT.

-- Using the GUI to add a peer device to a trust configuration.

Impact:
Adding a peer device using the GUI fails.

Workaround:
You can use either of the following workarounds (you might find the first one easier):

-- Temporarily set the device timezone to a non-affected timezone (e.g.; UTC), establish trust, and set it back:

1. Navigate to System :: Platform.

2. Under 'Time Zone', select 'UTC', and click 'Update'

3. Repeat steps one and two to change all devices that are to be part of the trust domain.

4. Establish device trust by navigating to Device Management :: Device Trust :: Add all peers to be part of the trust domain.

5. Once trust is established, navigate to System :: Platform, and change Time Zone back to preferred time zone.

-- Use tmsh to add a peer device in these timezones: AEST, AEDT, ACDT, ACWST, ACWDT, AWST, Asia/Muscat, or AWDT.

547947-1 : Feeding empty username and password to the Logon Page followed by RadiusAuthAgent shows the session as Logged out

Component: Access Policy Manager

Symptoms:
Session logs out. No error messages or retry logon page.
---------------------------------------------

Your session is finished.

Logged out successfully.

Thank you for using BIG-IP.

To open a new session, please click here.
----------------------------------------------

Conditions:
Your environment has an access policy like the following

                                   Success
Start -> Logon Page -> Radius Auth ----> Advanced resource assign (webtop) -> allow.
                              |
                              | failure
                              -----------------------------------------------> Deny.

If you connect to the virtual server with this access policy and provide an empty username and password, you are logged out of the session and asked to open a new session page.

Impact:
Without providing proper username and password, user is shown the error "Logged out successfully.", which is improper.

Workaround:
No mitigation observed.

538283-2 : iControl REST asynchronous tasks may block other tasks from running

Component: TMOS

Symptoms:
If an iControl REST asynchronous task is running, other iControl REST queries (synchronous or asynchronous) will wait until the asynchronous task completes before executing. If the asynchronous task is long-running, subsequent requests will block for a long time.

Conditions:
-- Executing an iControl REST task asynchronously.
-- Performing further iControl REST tasks (synchronous or asynchronous) while the asynchronous task is still running.

Impact:
Potential (and unexpected) long wait times while running a task asynchronously.

Workaround:
None.

528894-6 : Config-Sync after non-Common partition config changes results in extraneous config stanzas in the config files of the non-Common partition

Component: TMOS

Symptoms:
Configuration stanzas that do not belong in the files of a non-Common partition appear there. These stanzas could include, for example, 'net trunk' or 'sys ha-group' objects.

Conditions:
-- The system includes partitions other than Common.

-- Configuration in a partition other than Common is modified.

-- A Config-Sync operation not involving an overwrite takes place (it is also possible to reproduce this issue on a standalone BIG-IP system by doing a save operation like the following: "tmsh save sys config partitions { Common other }").

Impact:
/config/partitions/<partition_name>/bigip_base.conf will contain extraneous config stanzas (such as the ones mentioned in Symptoms).

/config/bigip_base.conf will no longer contain config stanzas that belong there.

Note that the impact is mostly cosmetic. An affected device will still be able to correctly load its configuration even if some config stanzas appear in the wrong flat config file.

However, Administrators performing audits of the flat config files will be perplexed as to why some stanzas are moving back and forth between partitions.

Workaround:
If you wish to restore your flat config files to their proper state after the issue has already occurred, simply run "tmsh save sys config" on the affected device.

Alternatively, to prevent the issue in the first place, you can Config-Sync using the following command "tmsh run cm config-sync force-full-load-push to-group <device-group>".

Note that neither workaround is permanent and the issue will reoccur.

512490-11 : Increased latency during connection setup when using FastL4 profile and connection mirroring.

Component: Local Traffic Manager

Symptoms:
Connection setup when using FastL4 profile and connection mirroring takes longer than previous versions.

Conditions:
FastL4 profile with connection mirroring.

Impact:
Slight delay during connection setup.

Workaround:
Disable tm.fastl4_ack_mirror. Optionally, enable tm.fastl4_mirroring_taciturn for signal to noise ratio improvements. This helps resolve connection setup latency.

500786-9 : Heavy memory usage while using FastL4/BIGTCP virtual server with HTTP profile

Component: Local Traffic Manager

Symptoms:
When a FastL4 virtual server with HTTP profile is used, certain kinds of traffic may cause huge memory growth and result in out-of-memory situation.

Conditions:
-- FastL4 virtual server with HTTP profile.
-- Handles HTTP cloaking traffic that starts up as HTTP and then switches over to non-HTTP data

Impact:
Memory growth could grow unbounded due to lack of flow control. This may lead to out of memory conditions eventually. Traffic disrupted while tmm restarts.

Workaround:
To work around this issue, you can perform one of the following actions:

-- If the HTTP profile is required, use a standard virtual server rather than performance (FastL4) type.
-- If the HTTP profile is not required, you can remove the HTTP profile from the virtual server.
-- To process connections that change from HTTP to non-HTTP, create an iRule that uses HTTP::disable after the first HTTP_REQUEST or HTTP_RESPONSE boundary can be identified.

499348-11 : System statistics may fail to update, or report negative deltas due to delayed stats merging

Component: TMOS

Symptoms:
Under some conditions, the BIG-IP system might fail to report statistics over time. This can manifest as statistics reporting unchanging statistics (e.g., all zeroes (0)), or as sudden spikes in traffic, or as negative deltas in some counters.

The system performance graphs will also appear to have gaps / be missing data at the times that this occurs.

Conditions:
This occurs when there are frequent changes occurring to the underlying statistics data structures. This might occur under the following conditions:

-- The system is spawning/reaping processes on a frequent basis (e.g., when there is a large number of external monitors).

-- iRules are frequently using 'SSL::profile' to select different SSL profiles on a virtual server (this can cause per-virtual server, per-profile statistics to be created and deleted on a regular basis).

Impact:
Statistics fail to merge, which results in incorrect view of system behavior and operation.

Workaround:
This issue has two workarounds:

1. Reduce the frequency of changes in the statistics data structures. The specific action to take depends on what is triggering them. To do so, use any or all of the following:

-- Reduce the frequency of configuration changes.
-- Reduce the use of 'SSL::profile' in iRules.
-- Reduce the number/frequency of processes being spawned by the system.

2. Switch statistics roll-ups to the 'slow_merge' method, which causes the system to spend more CPU merging statistics. To do so, set the 'merged.method' DB key to 'slow_merge' using the following command:
tmsh modify sys db merged.method value slow_merge.

489960 : Memory type stats is incorrect

Component: WebAccelerator

Symptoms:
When tmm allocates memory, it adds up stats per memory type allocated. AAM is not properly marking memory type for strings objects, affecting other types of memory stats depending on configuration and release.

Conditions:
AAM is provisioned and there are virtuals in BIG-IP configuration which have web acceleration profiles associated with one or more AAM policies.

Impact:
Stats for some types of memory can be skewed causing troubleshooting issues.

Workaround:
None.

474797-8 : Nitrox crypto hardware may attempt soft reset while currently resetting

Component: Local Traffic Manager

Symptoms:
Nitrox crypto hardware may attempt soft reset to clear a stuck condition while already engaged in a soft reset attempt.

Conditions:
Soft reset is needed to clear a stuck condition occurring in the timeframe during which another soft reset is occurring.

Impact:
The initial soft reset attempt does not complete as the process is restarted by the new attempt.

Workaround:
Correct the condition resulting in the need for the soft reset to clear the stuck condition or disable hardware-based crypto acceleration by setting db variable 'tmm.ssl.cn.shunt' to disable.

To disable hardware-based crypto acceleration issue the following command:

tmsh modify sys db tmm.ssl.cn.shunt value disable

Note: Disabling hardware-based crypto acceleration results in all crypto actions being processed in software, which might result in higher CPU and memory usage based on traffic patterns.

472645-2 : Memory issues when there is a lot of data in /var/annotate (annotations for dashboard)

Component: TMOS

Symptoms:
When there is a large number annotations in /var/annotate, tomcat might run out of memory when the dashboard requests the annotations.

The tomcat process logs an out-of-memory error, and the dashboard reports an error:
-- SEVERE: Servlet.service() for servlet org.apache.jsp.dashboard.annotations_jsp threw exception
java.lang.OutOfMemoryError: Java heap space.
-- Unrecoverable Communications Error. Please close this window and log in via the BIG-IP Configuration Utility.

Conditions:
-- Large number of configuration events, i.e., too many annotations in /var/annotate.
-- Click anything other than the default '5 minutes' tab.

Impact:
The the dashboard attempts to load all annotations into memory, but cannot. Dashboard must be restarted and can only be used at the 5-minute zoom level.

Workaround:
-- Delete the files in /var/annotate.

-- Increase the tomcat memory:
provision.tomcat.extramb = 320

470916-3 : Using native View clients, cannot launch desktops and applications from multiple VMware back-ends

Component: Access Policy Manager

Symptoms:
If APM is configured to protect multiple VMware resources (VCS servers), you can launch desktops and applications only from the first resource. Attempts to launch desktop or applications from other resources result in error.

Conditions:
-- APM is configured to protect multiple VMware resources (VCS servers).
-- You attempt to launch a desktop or application using the native VMware client.

Impact:
Cannot access desktops and applications from multiple VMware back-ends.

Workaround:
Use HTML5 client instead.

469724-3 : When evaluation/demonstration features expire, features enabled by both evaluation and perpetual licenses also expire

Component: TMOS

Symptoms:
Evaluation features cause perpetual features to expire when the evaluation license expires.

Conditions:
-- Perpetual license with an evaluation/demonstration add-on feature.
-- The add-on license expires or is expired.

Impact:
When an evaluation/demonstration add-on license expires, features included in both the evaluation add-on as well as the regular, perpetual license stop working.

This behavior is covered in F5 article K4679: BIG-IP evaluation and demonstration licenses do expire :: https://support.f5.com/csp/article/K4679.

Workaround:
To work around this issue, activate the license from the command line:

When reactivating an existing license, and deactivating an expired evaluation license key, specify the base registration key and add-on (if any), and use the -i option for the expired evaluation license key in the get_dossier command.

For example, if the expired evaluation license key is ABCDEFG-ZZZZZZZ, use the following command:

get_dossier -b ABCDE-ABCDE-ABCDE-ABCDE-ABCDEFG -a ABCDEFG-ABCDEFG -i ABCDEFG-ZZZZZZZ

You can find these steps detailed in K2595: Activating and installing a license file from the command line :: https://support.f5.com/csp/article/K2595. This part in particular is required to work around this issue

464708-2 : DNS logging does not support Splunk format log

Component: Global Traffic Manager (DNS)

Symptoms:
DNS logging does not support Splunk format logging. It fails to log the events, instead logging err messages:

hostname="XXXXXXXXXXXXX.XX",errdefs_msgno="01230140:3:

Conditions:
DNS logging configured for Splunk format.

Impact:
DNS logging does not log Splunk format to HSL.

Workaround:
Use an iRule to send Splunk-formatted messages to the Splunk server.

For example:

ltm rule dns_logging_to_splunk {

   when DNS_REQUEST {
      set ldns [IP::client_addr]
      set vs_name [virtual name]
      set q_name [DNS::question name]
      set q_type [DNS::question type]

      set hsl [HSL::open -proto UDP -pool splunk-servers]
      HSL::send $hsl "<190>,f5-dns-event=DNS_REQUEST,ldns=$ldns,virtual=$vs_name,query_name=$q_name,query_type=$q_type"
   }

   when DNS_RESPONSE {
      set ldns [IP::client_addr]
      set vs_name [virtual name]
      set q_name [DNS::question name]
      set q_type [DNS::question type]
      set answer [DNS::answer]

      set hsl [HSL::open -proto UDP -pool splunk-servers]
      HSL::send $hsl "<190>,f5-dns-event=DNS_RESPONSE,ldns=$ldns,virtual=$vs_name,query_name=$q_name,query_type=$q_type,answer=\"$answer\""
   }
}

438684-1 : Access Profile Type of SSO requires SSO configuration at create time

Component: Access Policy Manager

Symptoms:
If you start to create an Access Profile and you set the Profile Type to SSO, you cannot complete the configuration from the New Profile screen unless an SSO configuration already exists.

Conditions:
Attempt to create a new Access Profile of Type SSO without having an existing SSO to select.

Impact:
Cannot create a new Access Profile of Type SSO until an SSO Configuration has been created and then selected for use within Access Profile.

Workaround:
To work around this problem, you can create an SSO Configuration prior to creating the new Access Profile of Type SSO.

431503-8 : TMSH crashes in rare initial tunnel configurations

Solution Article: K14838

Component: TMOS

Symptoms:
In rare BigIP configuration scenarios, TMM may crash during its startup process when the tunnel configurations are loaded.

Conditions:
During TMM startup, a tunnel is created, then immediately removed during the configuration load period, when TMM neighbor messages may be in flight via the tunnel. When the race condition fits, the neighbor message may land on an invalid tunnel.

Impact:
TMM crash in rare race conditions.

Workaround:
None.

398683-4 : Use of a # in a TACACS secret causes remote auth to fail

Solution Article: K12304

Component: TMOS

Symptoms:
TACACS remote auth fails when the TACACS secret contains the '#' character.

Conditions:
TACACS secret contains the '#' character.

Impact:
TACACS remote auth fails.

Workaround:
Do not use the '#' character in the TACACS secret.

385013-2 : Certain user roles do not trigger a sync for a 'modify auth password' command

Component: TMOS

Symptoms:
If users with the certain roles change their password, the BIG-IP system does not detect that it is out-of-sync with its peer and does not trigger an automatic sync:

Conditions:
-- Multiple BIG-IP devices in a Device Service Cluster that sync configurations with each other.
-- A user with one of the following roles logs in and changes their password:
  + guest
  + operator
  + application-editor
  + manager
  + certificate-manager
  + irule-manager
  + resource-admin
  + auditor

Impact:
The system does not detect that it is out of sync with its peer, and does not report this condition. If automatic sync is enabled, a sync does not automatically occur.

Workaround:
Force a full sync to the peer systems.

382363-3 : min-up-members and using gateway-failsafe-device on the same pool.

Solution Article: K30588577

Component: TMOS

Symptoms:
The system does not require setting a pool's min-up-members greater than 0 (zero) when also using gateway-failsafe-device on the same pool.

Conditions:
A pool's min-up-members is 0 when gateway-failsafe-device is set.

Impact:
Failure to set min-up-members greater than 0 when using gateway-failsafe-device might cause errors. The tmm might crash.

Workaround:
Set min-up-members greater than 0 when using gateway-failsafe-device.

353607-1 : cli global-settings { service number } appears to have no effect

Component: TMOS

Symptoms:
cli global-settings { service number } appears to have no effect.

Conditions:
cli global-settings { service number } command.

Impact:
Has no effect.

Workaround:
None.

349706-2 : NetworkAccess assigns 1.1.1.1 address to remote ppp endpoint APM VPN

Component: Access Policy Manager

Symptoms:
Network access sends 1.1.1.1 as X-VPN-serer-IP and Edge client reserves this IP for PPP communication with APM server.

Conditions:
-- VPN is configured on BIG-IP.
-- Edge Client/webtop is used to connect to VPN.

Impact:
If VPN is connected:
1. The user may not access the 1.1.1.1 address from the client machine.
2. if 1.1.1.1 is used as a dns server ip in Network Access configuration, DNS resolution may fail on the client machine.

Workaround:
NA

315765-2 : The BIG-IP system erroneously performs a SNAT translation after the SNAT translation address has been disabled.

Component: Local Traffic Manager

Symptoms:
The BIG-IP system erroneously performs a SNAT translation after the SNAT translation address has been disabled. As a result of this issue, you may encounter the following symptom:

A network trace capturing the affected traffic on a BIG-IP system shows traffic continues to egress the BIG-IP system using the disabled SNAT translation address.

Conditions:
This issue occurs when the following condition is met: A SNAT translation address is configured, but disabled.

Impact:
Traffic egresses the BIG-IP system with the disabled SNAT translation address.

Workaround:
To work around this issue, you must delete the affected SNAT configuration instead of disabling it. To do so, perform the following procedure:

Impact of workaround: Deleting the affected SNAT configuration removes it entirely from the BIG-IP configuration. If you require the SNAT configuration later, you must recreate it manually.

BIG-IP 11.x/12.x

1. Log in to the tmsh utility.
2. Delete the affected SNAT configuration by entering the following command: delete /ltm snat <affected SNAT name>.

For example, to delete the test-315765 SNAT configuration, you would enter the following command: delete /ltm snat test-315765.

3. Save the modified configuration by entering the following command:
save /sys config

BIG-IP 9.x through 10.x

1. Log in to the command line.
2. Delete the affected SNAT configuration by entering the following command: bigpipe snat <affected SNAT name> delete.

For example, to delete the test-315765 SNAT configuration, you would enter the following command: bigpipe snat test-315765 delete.

3. Save the modified configuration by entering the following command: bigpipe save all.

264701-5 : GTM: zrd exits on error from bind about .jnl file error (Formerly CR 68608)

Solution Article: K10066

Component: Global Traffic Manager (DNS)

Symptoms:
The zrd process exits and cannot be restarted.

Conditions:
This occurs when the journal is out-of-sync with the zone.

Impact:
The zrd process cannot be restarted.

Workaround:
Before beginning, ensure that no one else is making config changes (i.e., consider making changes during a maintenance window).

I) On a working system, perform the following:
1. # rndc freeze $z

(Do this for all nonworking zones. Do not perform the thaw until you finish copying all needed files to the nonworking system.)

2. # tar zcvf /tmp/named.zone.files namedb/db.[nonworking zones].
3. # rndc thaw $z

II) On each nonworking system, perform the following:
1. # bigstart stop zrd; bigstart stop named
2. Copy the nonworking /tmp/named.zone.files from a working GTM system.
3. # bigstart start named; bigstart start zrd.

(Before continuing, review /var/log/daemon.log for named errors, and review /var/log/gtm for zrd errors0.)

Repeat part II until all previously nonworking systems are working.

III) On a working GTM system, run the following command:
# touch /var/named/config/named.conf.

1045277-2 : The /var partition may become 100% full requiring manual intervention to clear space

Component: TMOS

Conditions:
Process traffic while DoS Dashboard is open

Impact:
The partition housing /var/config/rest may become 100% full, impacting future disk IO to the partition.

1045101-3 : Bd crash in extracting Authorization header, if session awareness is enabled and use APM

Component: Application Security Manager

Symptoms:
Bd crashes while extracting the Authorization header value, if session awareness is enabled and "Use APM Username and Session ID" is selected in "Application Username" configuration.

Conditions:
- ASM and APM are provisioned
- Session awareness is enabled and "Use APM Username and Session ID" is selected in "Application Username" configuration
- A request contains an Authorization header

Impact:
Traffic disrupted while bd restarts.

Workaround:
None

1044901 : PEM Feature not supported for BIG-IP 15.1.5 on rSeries 5k/10k hardware

Component: Policy Enforcement Manager

Symptoms:
The PEM feature is not supported on the rSeries 5000/10000 system.

Conditions:
Attempting to configure PEM on the BIG-IP rSeries hardware.

Impact:
PEM support is disabled.

Workaround:
None

1044893-3 : Kernel warnings from NIC driver Realtek 8139

Component: TMOS

Symptoms:
Excessive kernel logs occur from the NIC driver Realtek 8139

Conditions:
-- Realtek 8139 driver is used
-- Packets with partial checksum and protocol IPPROTO_TCP/IPPROTO_UDP arrives

Impact:
The Realtek 8139 driver logs excessive kernel warnings.

1044873-2 : Deleted GTM link is not removed from virtual server object and causes load failure.

Component: Global Traffic Manager (DNS)

Symptoms:
The configuration fails to load with an error:

01070712:3: Values (/Common/Link_to_delete) specified for Virtual Server (/Common/vs1 /Common/HTTPP): foreign key index (explicit_link_FK) do not point at an item that exists in the database.
Unexpected Error: Loading configuration process failed.

Conditions:
-- Create GTM link
-- Assign specific link to any virtual server object
-- Delete link object
-- Run tmsh load sys config gtm-only (or create a sync group and the sync will fail)

Impact:
GTM config fails to load or config sync.

Workaround:
Remove any assigned virtual servers from the link prior to deleting it.

1044577-1 : TMM crash on BIG-IP Virtual Edition using DPDK and xnet drivers

Component: TMOS

Symptoms:
TMM crashes

Conditions:
-- BIG-IP Virtual Edition using DPDK and xnet drivers
-- More than one tmm

Impact:
Traffic disrupted while tmm restarts.

Workaround:
- Use only 1 TMM
- Use some other driver combination other than DPDK-xnet

1044281-2 : In some cases, cpcfg does not trigger selinux relabel, leaving files unlabeled

Component: TMOS

Symptoms:
Under certain circumstances, if a configuration is copied to a boot location that has has already been booted into, files restored by the UCS archive remain unlabeled. After booting to the target volume, the BIG-IP will not function and will have the status "INOPERATIVE".

Conditions:
-- APM is provisioned.
-- Performing a cpcfg copy to another volume.

Impact:
-- APM localdbmgr restarts, and fails to restore configuration from UCS archive
-- Spurious system permissions failures as a result of SELinux

Workaround:
After booting into the affected boot location, force an SELinux relabeling:

# touch /.autorelabel && reboot

1043805-2 : ICMP traffic over NAT does not work properly.

Component: Local Traffic Manager

Symptoms:
ICMP traffic hitting a NAT translation address is dropped and not sent further to the originating address.

Conditions:
-- An LTM NAT is configured.
-- ICMP traffic arrives.

Impact:
ICMP traffic fails to be forwarded over the NAT.

1043533-1 : Unable to pick up the properties of the parameters from audit reports.

Component: Application Security Manager

Symptoms:
In the GUI under Security ›› Application Security : Audit : Reports, if you select "User-input parameters..." in the menu "Security Policy Audit Reports", then click on the parameter to retrieve the properties, you will see this error:
" Could not retrieve parameter; Could not get the Parameter, No matching record was found."

Conditions:
1) Create a new parameter.
2) Customize or overwrite an existing ASM signature for the parameter in question.
3) Save and apply to the policy the new changes
4) Go to:
    Security ›› Application Security : Audit : Reports
    Report Type : User-input parameters with overridden attacks signatures (this also happens for other "User-input parameters...")
    Select the parameter to audit
    Error: "Could not retrieve parameter; Could not get the Parameter, No matching record was found."

Impact:
A page error occurs.

Workaround:
1. Open in a separate tab the following screen: Security ›› Application Security : Parameters : Parameters List
2. Under "Parameter List" title, there is a filter dropdown with the "Parameter Contains" texting.
3. On the blank part (before "Go" button) type the name of the required parameter.
4. You will get the desired page with the desired parameter properties.

1043357-3 : SSL handshake may fail when using remote crypto client

Component: Local Traffic Manager

Symptoms:
ServerSSL handshake fails when verifying ServerKeyExchange message.

Conditions:
Remote crypto client is configured and the ServerSSL profile connects using an ephemeral RSA cipher suite.

Impact:
The virtual server is unable to connect to the backend server.

Workaround:
Use non-ephemeral RSA or ECDSA cipher suite on ServerSSL.

1043233-1 : Export of large access policy configuration from ng_export CLI

Component: Access Policy Manager

Symptoms:
PHP Fatal error: Allowed memory size of <maximum allowed number> bytes exhausted (tried to allocate <number> bytes) in /usr/bin/ng_export on line <line number>

Conditions:
Huge Access policies (Eg: 1Gb)

Impact:
Policy export fails.

1043141-2 : Misleading 'Symmetric Unit Key decrypt failure - decrypt failure' when loading UCS from another BIG-IP

Component: TMOS

Symptoms:
Loading a UCS file from another BIG-IP results in an error message similar to:

"/usr/bin/tmsh -n -g -a load sys config partitions all platform-migrate" - failed. -- 010713d0:3: Symmetric Unit Key decrypt failure - decrypt failure

The error message is misleading as the issue is unrelated to master key decryption.

Conditions:
-- Loading a UCS archive from a different BIG-IP.
-- The UCS archive does not contain a ".unitkey" file.
-- The target system does have the correct master key value configured.
-- There is some other MCPD validation issue in the configuration.

Impact:
Platform migration fails with a misleading error message.

Workaround:
Once the issue has happened, you can either:

- Examine the LTM log file for other error messages from MCPD and then correct the configuration issue(s).

OR:

- Re-start MCPD.

1043017-3 : Virtual-wire with standard-virtual fragmentation

Component: Local Traffic Manager

Symptoms:
A standard virtual-server configured on top of a virtual-wire has unexpected handling of fragmented IP traffic.

Conditions:
Standard virtual-server configured on top of a virtual-wire handling fragmented IP traffic.

Impact:
- Fragments missing on egress.
- Packet duplication on egress.

Workaround:
Use fastl4 virtual-server instead.

1042913 : Pkcs11d CPU utilization jumps to 100%

Component: Local Traffic Manager

Symptoms:
CPU utilization of pkcs11d increases to 100%.

Conditions:
This occurs when pkcs11d is disconnected from the external HSM.

Impact:
As the pkcs11d consumes most of the CPU, other processes are starved for CPU.

Workaround:
None.

1042737-3 : BGP sending malformed update missing Tot-attr-len of '0.

Component: TMOS

Symptoms:
BIG-IP might send a malformed BGP update missing Tot-attr-len of '0 when performing a soft reset out.

Conditions:
-- Multiple traffic groups configured.
-- A BGP soft reset occurs.

Impact:
BGP peering resets.

1042605-3 : ASM Critical Warnings during UCS load after upgrade to v15.1.0 or above★

Component: Application Security Manager

Symptoms:
Following an upgrade, an error occurs:
ERROR: Failed during loading ASM configuration.

An "ASM critical warning" banner is displayed in the ASM GUI.

Conditions:
-- ASM is upgraded to v15.1.0 or above
-- The following query returns results prior to upgrading:

SELECT policy_name_crc FROM DCC.ACCOUNTS accounts WHERE policy_name NOT IN (SELECT name FROM PLC.PL_POLICIES)

Impact:
ASM upgrade is aborted due to an exception:
Can't call method "clear_traffic_data" on unblessed reference

1042505-2 : Session variable "session.user.agent" does not get populated for edge clients

Component: Access Policy Manager

Symptoms:
Access policy agents and iRules that depend on "session.user.agent" session variable fail to execute properly.

Conditions:
Access polices have agents that depend on the value of session variable "session.user.agent" for its execution.

Impact:
Any access policy agents that depend on this session variable will not be able to follow the rules.

1042153-1 : AFM TCP connection issues when tscookie-vlans enabled on server/client side VLAN.

Component: Advanced Firewall Manager

Symptoms:
The BIG-IP system is unable to restore the Timestamp (by replacing the TS cookie) when the packet is offloaded to hardware. This happens only when TS cookie enabled on either of the VLANS (client/server), when the TS cookie enabled on both the VLAN no issues are seen.

Conditions:
Configure TCP BADACK Flood DDoS vector to start mitigation at a given value and enable TS cookies on the server VLAN.

Impact:
The TS cookie will not be restored to its original value when the SYN packet is processed by software in BIG-IP and the SYNACK will be handled by the hardware in BIG-IP. As s result, end-hosts (client/server) RTT calculation is incorrect and causes various issues (ex : blocks the Internet access from hosts in the backend infrastructure).

Workaround:
Use fastL4 profile with EST mode i.e. change the 'pva-offload-state to EST'

1042133 : Current Sessions value of gateway route pool member goes negative

Component: Local Traffic Manager

Symptoms:
A pool member's current session value can go to a negative value.

Conditions:
-- Explict http proxy
-- Gateway pool with a default route
-- Traffic arrives so that the proxy attempts to send requests via the default gateway pool

Impact:
Wrong value of current sessions of pool member

1041989-3 : APM Portal Access does not add automatically the / after the URL encoded (after the '$$'), Redirect breaks

Component: Access Policy Manager

Symptoms:
If the Location header does not end with '/' in direct case, the rewritten URL misses the forward slash character '/'.

APM does not add automatically the / after the URL encoded(after $$)?

e.g https://website Is rewritten as https://apm/f5-w-<hex encoded scheme,host,port>$$ instead of https://apm/f5-w-<hex encoded scheme,host,port>$$/.

If the caption URI is https://website without / at the end, APM will rewrite it as https://apm/f5-w-<hex encoded scheme,host,port>$$/

Conditions:
-- APM Portal Access
-- Redirect response Location header does not end with '/' - after the {scheme://host:port}

Impact:
Missing / after redirection - Page does not load

Workaround:
Add '/' through iRule in redirect response header.

1041985-3 : TMM memory utilization increases after upgrade★

Component: Access Policy Manager

Symptoms:
TMM memory utilization increases after upgrading.

The keep-alive interval of the _tmm_apm_portal_tcp default profile is set to a value that is less than the Idle Timeout setting.

Conditions:
-- APM enabled and passing traffic
-- The configuration has a profile that uses or is derived from _tmm_apm_portal_tcp where the keep-alive interval was reduced to 60

Note that this can be encountered any time a tcp profile contains a keep-alive interval setting that is less than the idle timeout.

For more information about the relationship between keep-alive and idle time out, see K13004262: Understanding Idle Timeout and Keep Alive Interval settings in the TCP profile, available at https://support.f5.com/csp/article/K13004262

Impact:
TMM memory may increase while passing traffic.

Workaround:
Change the tcp keep alive interval to the default setting of 1800 seconds.

1041889-1 : RRSIG missing for CNAME with RDATA in different zone

Component: Global Traffic Manager (DNS)

Symptoms:
RRSIG missing for CNAME.

Conditions:
-- CNAME record with RDATA in different zone.
-- One zone dynamically signed.
-- The other zone in local BIND (ZoneRunner) with static DNSSEC records.

Impact:
DNSSEC validation failure.

1041865-3 : Correctable machine check errors [mce] should be suppressed

Component: TMOS

Symptoms:
Log emerg in kern.log similar to:
emerg kernel: mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 10: cc003009000800c1

Conditions:
Correctable errors can be identified by analyzing the 16‐bit value shown in bits [31:16] of the 64‐bit error from the /var/log/kern.log message. When bits [31:16] = 0008 this is a correctable error and not failing hardware.

An example is shown below.

Log error matches this pattern:
Machine Check: 0 [bank number]: [cc003009][0008][00c1]
bits [31:16] = 0008

Impact:
Correctable errors are logged in kern.log and to the console. There is no functional impact.

Workaround:
None

1041801-2 : TMM crashes when handling Network DNS resolver Traffic.

Component: Global Traffic Manager (DNS)

Symptoms:
TMM crashes and produces a core file.

Conditions:
-- The configuration involves a Network DNS resolver object and it receives traffic.

Impact:
Traffic disrupted while tmm restarts.

1041765-1 : Racoon may crash in rare cases

Component: TMOS

Symptoms:
Racoon may crash when NAT Traversal is on and passing IPsec traffic in IKEv1.

Conditions:
-- IKEv1 IPsec tunnel configured
-- NAT Traversal is on in ike-peer configuration.

Impact:
Racoon will crash and any IKEv1 tunnels will restart

Workaround:
Use IKEv2 only.

1041625-3 : Virtual server flapping when the active and standby devices have different configuration.

Component: Global Traffic Manager (DNS)

Symptoms:
The virtual server status flaps.

Conditions:
1. Virtual server auto discovery enabled.
2. Configured GTM server is configured for high availability (HA).
3. The active and standby devices have different IP addresses for the same virtual server.

Impact:
The virtual server status flaps and traffic might be interrupted.

Workaround:
Make the active and standby devices have the same configuration.

1041149-2 : Staging of URL does not affect apply value signatures

Component: Application Security Manager

Symptoms:
When a URL is staged and a value content signature is detected, the matched request is blocked.

Conditions:
-- URL is set to staging;
-- Only default ("Any") content profile is present, set to apply value signatures (all other content profiles deleted);
-- Request matches attack signature

Impact:
The request for staged URL is blocked

Workaround:
Configure relevant content profiles or leave the default content profiles configuration.

1040957-2 : The ipother profile can be used with incompatible profiles in a virtual server

Component: Local Traffic Manager

Symptoms:
The BIG-IP system does not prevent the ipother profile from being used with incompatible profiles in a virtual server.

-- Log messages such as the following in the LTM log file:

err tmm[28670]: 01010008:3: Proxy initialization failed for /Common/example_vs. Defaulting to DENY.
err tmm[28670]: 01010008:3: Listener config update failed for /Common/example_vs: ERR:ERR_ARG

-- Log messages such as the following in TMM's log file:

notice hudchain contains precluded clientside filter: IPOTHER

Conditions:
Creating or modifying a virtual server to use the ipother profile with an incompatible profile.

Impact:
Invalid configuration. TMM traffic passing does not behave the way virtual server configuration dictates it should.

Workaround:
Remove the incompatible profile(s) from the virtual server.

1040829-3 : Errno=(Invalid cross-device link) after SCF merge

Component: Access Policy Manager

Symptoms:
A single config file (SCF) merge fails with the following error:

01070712:3: failed in syscall link(/var/system/tmp/tmsh/IHxlie/files_d/Common_d/customization_group_d/:Common:otters-connectivity_1_secure_access_client_customization_62552_1, /config/filestore/.trash_bin_d/.current_d/Common_d/customization_group_d/:Common:otters-connectivity_1_secure_access_client_customization_62552_1) errno=(Invalid cross-device link)

Conditions:
A customization group with the same name is present in both the SCF file and the BIG-IP device.

Impact:
SCF merge fails

Workaround:
None

1040685-3 : Core file on blade slot2 after reboot (TMM SIGSEGV in pktclass_classifier)

Component: Advanced Firewall Manager

Symptoms:
Tmm crashes after reboot.

Conditions:
This is encountered intermittently after rebooting a blade.

Impact:
Slot usable until manual intervention. Traffic disrupted while tmm restarts.

Note: this issue happened only once and no further occurrence was reported.

1040477 : Drop-Down menu shows white blank items in Reporting : DoS : URL Latencies

Component: Application Visibility and Reporting

Symptoms:
Drop-Down menu shows white blank items in Reporting : DoS : URL Latencies

Conditions:
- 15.1.2.1 or subsequent v15 releases
- Using Chrome on Windows

Impact:
The drop-down menu is not usable.

Workaround:
None.

1040361-2 : TMM crashes during its startup when TMC destination port list attached/deleted to virtual server

Component: Local Traffic Manager

Symptoms:
-- Log message written to TMM log file:
panic: ../kern/page_alloc.c:736: Assertion "vmem_hashlist_remove not found" failed.

Conditions:
-- Virtual Server using a traffic-matching-criteria (TMC) with a destination-port-list, with multiple distinct ranges of ports.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Do not use Traffic Matching Criteria with destination port lists.

1040153-3 : Topology region returns narrowest scope netmask without matching

Component: Global Traffic Manager (DNS)

Symptoms:
BIG-IP returns malformed packets or the narrowest scope not matching the request.

Conditions:
Mixed sub networks with different mask length.

Impact:
Malformed packets.

Workaround:
Do not put mixed subnets in one region.

1040117-1 : BIG-IP Virtual Edition drops UDP packets

Component: TMOS

Symptoms:
BIG-IP Virtual Edition drops padded UDP packets when the hardware will accept and forward these same packets.

Conditions:
-- BIG-IP Virtual Edition
-- Padded UDP packets are sent

Impact:
UDP packets are dropped, potentially disrupted traffic

1040045-2 : Unable to delete trunk member on a VCMP guest

Component: Local Traffic Manager

Symptoms:
After deleting a trunk member on a VCMP hypervisor, the change may not propagate to the guest.

Conditions:
-- VCMP guest
-- A trunk member that is UP
-- The trunk member is deleted on the hypervisor

Impact:
The guest does not have the current trunk information

Workaround:
Down the interface on the VCMP hypervisor before removing it (tmos)# modify net interface 2/3.1 disabled
(tmos)# modify net trunk trunk_1 interfaces del { 2/3.1 }

1040017-3 : Final ACK validation during flow accept might fail with hardware SYN Cookie

Component: Local Traffic Manager

Symptoms:
With hardware SYN cookie mode enabled, final ACK validation during flow accept fails and ACK packets are dropped. Such error messages are being logged in LTM logs :

"An Enforced Device DOS attack start was detected for vector TCP half-open"

Conditions:
-- Hardware SYN Cookie is enabled
-- BIG-IP is under TCP half-open attack and packet hits a CMP forwarding flow

Impact:
ACK packets are wrongly dropped, causing traffic interruption.

Workaround:
Disable hardware SYN Cookie

1039993-2 : AFM NAT Excessive number of logs "Port Block Updated" and "LSN_PB_UPDATE"

Component: Advanced Firewall Manager

Symptoms:
Although Subscriber ID is not changed, "Port Block Updated","10.10.10.29","0","10.20.20.64","0","1025","1275","","unknown" is being written in the log

Conditions:
If "Log subscriber ID" field is selected in the log profile, this log will be printed.

Impact:
Excessive log messages occur.

Workaround:
If you deselect "Log subscriber ID" field in log profile, this message will not be written. Note that this workaround may impact other messages related to subscriber ID.

1039725-2 : Reverse proxy traffic fails when a per-request policy is attached to a virtual server.

Component: Access Policy Manager

Symptoms:
Reverse proxy or inbound traffic fails during SSL renegotiation when a per-request policy is attached to the virtual server.

Conditions:
-- SSL Orchestrator is licensed and provisioned.
-- Per-request policy is attached to virtual server.
-- Client or backend server initiates SSL renegotiation.

Impact:
Reverse proxy traffic fails during SSL renegotiation.

Workaround:
If renegotiation is not required then it can be disabled on BIG-IP. The client SSL and server SSL profiles have 'Renegotiation' settings. If it is set to disabled, BIG-IP or SSL Orchestrator does not do SSL renegotiation.

1039609-3 : Unable to poll Dynamic routing protocols SNMP OID's on non-default route domain

Component: TMOS

Symptoms:
You are unable to extract the dynamic routing protocols configuration information via an SNMP walk.

Conditions:
Example taken below is for BGP:

-- Create BGP config in non-default route-domain, establish peer with some router.
-- Create snmp community in non-default route domain
-- Run snmp walk for BGP4 mib (1.3.6.1.2.1.15).

Certain key MIB OIDs from the BGP configuration like bgpPeerRemoteAddr,bgp4PathAttrIpAddrPrefixLen are missing.

Impact:
Dynamic routing protocols SNMP OID polling not working when they are in a non-default route-domain.

1039553-2 : Non-200 HTTP status codes fail to be matched by GTM HTTP(S) monitors

Component: Global Traffic Manager (DNS)

Symptoms:
GTM virtual servers have the wrong status (up when they should be down, or down when they should be up, depending on the monitor's configuration).

Conditions:
-- The GTM virtual servers are monitored with an HTTP or HTTPS monitor that performs HTTP status matching.

-- The monitor tries to match an HTTP status code other than 200 (for example, 301).

-- The monitor uses HTTP version 1.0 or 1.1 for the request (the default is 0.9).

Impact:
The system incorrectly considers all non-200 responses a failed monitor attempt, despite what the user specified as acceptable status codes in the monitor's configuration. As a result, the availability status reported for a virtual server may be incorrect. This may cause the GTM system to send traffic to unsuitable resources causing application disruptions.

Workaround:
You can work around this issue in any of the following ways:

-- Use HTTP version 0.9 for the monitor requests.

-- Match on the 200 HTTP status code.

-- Do not use HTTP status matching altogether.

1039329-1 : MRF per peer mode is not working in vCMP guest.

Component: Service Provider

Symptoms:
MRF diameter setup, in peer profile "auto-initialization" and "per peer" mode are enabled, but no connection attempts towards the pool member occur.

When the mode is switched to "per tmm" or "per blade", connections are established.

Conditions:
The peer connection mode in the peer profile is set to "per peer".

Impact:
The "per peer" setting does not work.

Workaround:
Switch the connection mode to "per tmm" or "per blade"

1039277-3 : TMM core

Component: Local Traffic Manager

Symptoms:
Tmm crashes while passing traffic

Conditions:
- http virtual server
- httprouter
- http2 profile

Impact:
Traffic disrupted while tmm restarts.

1039205 : DNSSEC key stored on netHSM fails to generate if the key name length is > 24

Component: Global Traffic Manager (DNS)

Symptoms:
DNSSEC keys are not generated successfully.
Errors in logs similar to:

gtm1 err tmsh[4633]: 01420006:3: Key management library returned bad status: -20, Domain names must be 63 characters or less.

Conditions:
Create DNSSEC key with a name longer than 24:
# tmsh create ltm dns dnssec key DNSSEC_with_long_name_21_ key-type zsk use-fips external

Impact:
DNSSEC keys are not generated successfully.

1039049 : Installing EHF on particular platforms fails with error "RPM transaction failure"

Component: TMOS

Symptoms:
-- Installing an EHF fails with the error "RPM transaction failure"

-- Errors similar to the following are seen in the liveinstall.log file:

info: RPM: /var/tmp/rpm-tmp.LooFVF: line 11: syntax error: unexpected end of file
info: RPM: error: %preun(fpga-tools-atlantis-15.1.3-0.0.11.i686) scriptlet failed, exit status 2

Conditions:
-- Installing an EHF that contains the 'fpga-tools-atlantis' package
-- Using the following platforms:
  + BIG-IP i4600 / i4800
  + BIG-IP i2600 / i2800
  + BIG-IP i850

Impact:
EHF installation fails.

Workaround:
None

1038913-3 : The weekly ASM reporting "Security ›› Reporting : Application : Charts" filter "View By" as IP Intelligence shows only the "Safe" category

Component: Application Visibility and Reporting

Symptoms:
In GUI "Security ›› Reporting : Application : Charts" filtering "View By" as IP Intelligence "Last Week", "Last Month" and "Last Year" reports show the "Safe" category instead of "Aggregated".

Conditions:
-- ASM is provisioned
-- The system is under heavy traffic
-- The number of stats records per report period (5 min) is higher than 10,000

Impact:
Inaccurate Last Week IPI reporting

1038837-1 : Debugd starts with message: Shm segment not found in /etc/ha_table/ha_table.conf.

Component: Advanced Firewall Manager

Symptoms:
During system boot, the debugd daemon emits a message 'Shm segment not found in /etc/ha_table/ha_table.conf', and heartbeat monitoring is disabled for debugd.

Conditions:
Debugd daemon is running.

Impact:
No heartbeat monitoring for debugd daemon.

Workaround:
Manually edit the file /etc/ha_table/ha_table.conf and insert a line at the end:
ha segment path: /debugd

1038629 : DTLS virtual server not performing clean shutdown upon reception of CLOSE_NOTIFY from client

Component: Local Traffic Manager

Symptoms:
With the DTLS virtual server, when client sends the CLOSE_NOTIFY alert, BIG-IP is simply closing the connection without sending the CLOSE_NOTIFY back to client as well as the backend server. This causes the backend server to not close/shutdown the connection completely.

Conditions:
This issue occurs with all DTLS virtual servers which has associated client-ssl and server-ssl profiles.

Impact:
Backend server and client will have a dangling connection for certain period of time (Based on the timeout implementation at the respective ends).

1038057-1 : Unable to add a serverssl profile into a virtual server containing a FIX profile

Component: Service Provider

Symptoms:
You are unable to configure a virtual server to use server SSL encryption with FIX protocol messages.

Conditions:
This is encountered when serverssl needs to be configured for FIX profiles

Impact:
You are unable to assign a server-ssl profile to the virtual server.

Workaround:
None

1037877-2 : OAuth Claim display order incorrect in VPE

Component: Access Policy Manager

Symptoms:
In the visual policy editor (VPE), it is difficult to re-order custom previously created Claims in the oAuth Authorization agent.

The following error is thrown in the developer tools screen of the client browser:
common.js?m=st&ver=15.1.2.1-0.0.10.0:902 Uncaught TypeError: Cannot read property 'row' of undefined
    at Object.common_class.swap (common.js?m=st&ver=15.1.2.1-0.0.10.0:902)
    at multipleObjectsSelectionCBDialogue_class.swapEntries (multipleObjectsSelectionCBDialogue.js?m=st&ver=15.1.2.1-0.0.10.0:263)
    at HTMLAnchorElement.<anonymous> (multipleObjectsSelectionCBDialogue.js?m=st&ver=15.1.2.1-0.0.10.0:185)
common_class.swap @ common.js?m=st&ver=15.1.2.1-0.0.10.0:902
multipleObjectsSelectionCBDialogue_class.swapEntries @ multipleObjectsSelectionCBDialogue.js?m=st&ver=15.1.2.1-0.0.10.0:263
(anonymous) @ multipleObjectsSelectionCBDialogue.js?m=st&ver=15.1.2.1-0.0.10.0:185

Conditions:
-- There are at least two claims in Access :: Federation : OAuth Authorization Server : Claim
-- You are attempting to reorder the claims in the visual policy editor

Impact:
It is not possible to re-order the claims

Workaround:
None

1037661-1 : The packet tester does not validate the route domain after applying the rule list when the protocol is changed from IP to any

Component: Advanced Firewall Manager

Symptoms:
After changing a firewall rule protocol to "any" and applying the change, the change is accepted but traffic is not matched.

Conditions:
-- Firewall rules are applied to a non-default route domain
-- One or more rules have the protocol field set to "any" and this is the only change

Impact:
The configuration change is applied but the rule is not applied correctly and some traffic might not be matched.

Workaround:
Make a change to an additional variable and submit the change.

1037645-1 : TMM may crash under memory pressure when using iRule 'AES::key' command

Component: Local Traffic Manager

Symptoms:
TMM crashes and generates core file.

Conditions:
-- TMM is under memory pressure
-- iRule using 'AES::key' command

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

1037457-2 : High CPU during specific dos mitigation

Component: Application Security Manager

Symptoms:
CPU is high.

Conditions:
A dos attack with specific characteristic is active and the policy is configured in a specific way.

Impact:
While the attack is mitigated on the BIG-IP system and does not reach the server, the CPU of the BIG-IP increases and this may impact other services on the BIG-IP device.

Workaround:
N/A

1037197 : Packet tester UI does not show partition label for VLANs

Component: Advanced Firewall Manager

Symptoms:
The GUI does not show partition labels for VLANs on the packet tester page.

Conditions:
-- Create VLAN
-- Navigate to Security>Debug: Packet Tester
-- UI does not show partition label for the VLAN

Impact:
Can't identify VLAN's partition

1037189 : Invalid values in long request buffer size in umu stats

Component: Application Security Manager

Symptoms:
Logs shows invalid values in long request buffer size in umu stats printout

"Total allocated long request buffers: 621, Total memory used by long request buffers: 18446744072519584320 bytes"

Conditions:
Lots of concurrent connections sending long requests.

Impact:
Confusing log messaging

Workaround:
No workaround

1037153-3 : iRule "log" command to remote destinations may cause TMM to leak memory

Component: Local Traffic Manager

Symptoms:
TMM leaks memory in the errdefs component.

TMM may leak memory in the xdata and xhead components if the system does not have routes to the specified syslog servers.

Conditions:
-- iRule that uses "log" to target a remote destination, e.g.: "log 192.0.2.1 'log message'"

Impact:
TMM leaks memory.

Eventually, TMM may disrupt legitimate connections as a result of memory pressure, or even crash and restart.

Workaround:
One of the following:

1. Log to local syslog, and configure syslog-ng to log to remote servers.

2. Use High-Speed Logging (https://clouddocs.f5.com/api/irules/HSL.html), instead of the "log" command.

1036969-3 : Chrome sometimes ignores cross-site bot-defense cookies

Component: Application Security Manager

Symptoms:
Chrome ignores cross-site bot-defense cookies when bot-defense is sending 307 redirect.

Conditions:
A site is using another site/domain resources that are also protected by bot-defense

Impact:
The other site/domain resource will not display correctly on Chrome

Workaround:
iRule work-around based on:https://devcentral.f5.com/s/articles/iRule-to-set-SameSite-for-compatible-clients-and-remove-it-for-incompatible-clients-LTM-ASM-APM.

Or, disabling simple redicret via TMSH:
tmsh modify sys db dosl7.proactive_defense_simple_redirect { value "disable" }
tmsh modify sys db dosl7.proactive_defense_simple_redirect_on_grace { value "disable" }

1036873-1 : Pre-shared key extension sometimes is not the last extension in ClientHello in TLS1.3

Component: Local Traffic Manager

Symptoms:
Under some conditions, the BIG-IP's TLS 1.3 Client Hello sometimes does not have the pre-shared key extension as the last extension in the Client Hello. This is contrary to a requirement in the TLS 1.3 RFC, and causes servers to fail the connection.

A backend server may log a message such as:

SSL_do_handshake() failed (SSL: error:141B306E:SSL routines:tls_collect_extensions:bad extension)

Conditions:
-- Server SSL profile (BIG-IP operating as client) with TLS 1.3 enabled.
-- A Client Hello message size that falls between 256 and 512 bytes (without padding), which causes the BIG-IP to introduce a padding extension at the end of the Client Hello.

This issue can be seen via use of the "single-dh-use" or "session-tickets" options in the SSL profile.

Impact:
The TLS handshake fails.

Workaround:
Adjust the configuration of the Server SSL profile by either:

-- Disable Session Tickets
or
-- Disable the single-dh-use option

1036601 : Discrepancies in the number of requests with violations in ASM reports

Component: Application Visibility and Reporting

Symptoms:
In GUI form "Security->Reporting->Application->Charts" the overall number of request when "View by" is set to "violations" differs considerably from the number of all illegal requests(alarmed or blocked) when "View by" is set to "Request Types". These numbers must be close to each other since all alarmed requests should have one or (in some cases) more violations.

Conditions:
ASM is provisioned. Under heavy traffic, the number of stats records per report period (5 min) is higher than 10000

Impact:
The aforementioned AVR reports show incorrect statistical data.

1036557-3 : Monitor information not seen in GUI

Component: TMOS

Symptoms:
GUI displays "An error has occurred while trying to process your request" when deleting/creating a monitor with the same name under the same transaction.

Conditions:
(a) Create a TCP monitor, then in a single transaction delete the TCP monitor + create an HTTP monitor with same name as the TCP monitor. Example below:

# tmsh create ltm monitor tcp <Name of the monitor>
# echo 'create cli transaction; delete ltm monitor tcp <Name of the monitor> ; create ltm monitor http <Name of the monitor>; submit cli transaction' | tmsh
# tmsh save sys config

This could also occur when reconfiguring an iApp, or changing a configuration via AS3.

(b) Login to the GUI and click on the monitor (GUI > Local Traffic > Monitors > (Monitor created)) you'll see "An error has occurred while trying to process your request"

Impact:
Unable to view monitor parameters in GUI.

Workaround:
Any one of the following workarounds help:
- do not use the same monitor name
- do not perform the delete+create actions on a single transaction
- save and load the configuration:
tmsh save sys config && tmsh load sys config

1036541-3 : Inherited-traffic-group setting of floating IP does not sync on incremental sync

Component: TMOS

Symptoms:
When a floating IP object is created, and its inherited-traffic-group property is set, this property does not sync to other devices.

Conditions:
This is relevant for any setup with multiple devices in a sync/failover device group.

Impact:
This will impact incremental syncing to other peers in the device group.

Workaround:
Do a full config sync if possible.

1036521-3 : TMM crash in certain cases

Component: Application Security Manager

Symptoms:
TMM crash in certain case when dosl7 is attached

Conditions:
TMM is configured with dosl7

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

1036461-3 : icrd_child may core with high numbers of open file descriptors

Component: TMOS

Symptoms:
icrd_child core generated

Conditions:
Have over 1024 open file descriptors.

Impact:
REST API usage for BIG-IP configuration will be impacted

Workaround:
Make sure that open file descriptor count is not reached 1024 and close the file descriptors opened

1036265-3 : Overlapping summary routes might not be advertised after ospf process restart.

Component: TMOS

Symptoms:
Overlapping summary routes might not be advertised after ospf process restarts.

Conditions:
Add an overlapping /32 entry for a summary route and restart ospf process.

Impact:
Summary routes are not advertised.

1036169-3 : VCMPD rsync server max connection limit: guest "Exit flags for PID 17299: 0x500".

Component: Local Traffic Manager

Symptoms:
Guestagentd will log the message "Exit flags for PID <PID>:0x500" in guest ltm log, if vcmp guest to host rsync current active connection is more than 4

Conditions:
-- vCMP guest
-- Rsync transfer frequency is 10 seconds between vCMP guest to vCMP host.
-- net.ipv4.tcp_fin_timeout > 30 seconds.

Impact:
Guest LTM logs fill with "Exit flags for PID <PID>: 0x500".

Workaround:
Update /etc/sysctl.conf on the VCMP host to include "net.ipv4.tcp_fin_timeout = 30"

The guestagentd process on the VCMP guest pushes statistics to the VCMP host via RSYNC every 10 seconds opening a new TCP connection to RSYNC.
* In a 30 second period, there is likely 3 TCP connections in TIME WAIT and 1 in flight. It won't exceed the max connection limit (4).

1036097-3 : VLAN failsafe does not trigger on guest

Component: TMOS

Symptoms:
VCMP guest VLAN failsafe does not trigger as expected.

Conditions:
-- VCMP host configured
-- VLAN failsafe enabled on a VLAN
-- One or more VCMP guests enabled that use that VLAN.
-- A trunk member of a trunk connected to the vCMP guest is flapping.

Impact:
Since the neighbor messages for the IPv6 link-local addresses continue to be successfully passed from host to guest upon a trunk member change, VLAN failsafe does not trigger even if the upstream switch goes down that's connected to the VLAN.

Workaround:
None

1036093-3 : Tmm sends out neighbor advertisements for the link local addresses even if IPv6 is disabled

Component: Local Traffic Manager

Symptoms:
When a trunk member state changes and IPv6 is disabled, BIG-IP still sends neighbor advertisements for the link-local addresses on each VLAN

Conditions:
- IPv6 is disabled (ipv6.enabled=false)
- change in a trunk member state occurs

Impact:
Link-local addresses are still in the vaddr hash even after ipv6 is disabled.

1036013-2 : BIG-IP systems may terminate connections prematurely when a TLS close-notify alert is received

Component: Local Traffic Manager

Symptoms:
When a backend server sends a TLS close-notify alert, BIG-IP may terminate the connection prematurely without forwarding the HTTP response.

Conditions:
ServerSSL receives a TLS Close-notify alert after a TLSv1.3 session is established.

Impact:
Server responses may be dropped.

Workaround:
Use TLSv1.2.

1036009-2 : Fix DPDK RSS configuration settings

Component: TMOS

Symptoms:
When using DPDK driver and multiqueue, only TCP traffic will get hashed and distributed between different TMMs

Conditions:
- DPDK driver is being used
- Multiqueue is enabled and in use

For a list of NICs that use dpdk see K17204: BIG-IP VE NIC adapters that support SR-IOV, available at https://support.f5.com/csp/article/K17204

Impact:
UDP traffic will get funneled to only a single TMM causing excess CPU usage on that TMM

Workaround:
Disable multiqueue

1035757-3 : iRulesLX restart leaves stale files in /var/tmstat/blade/tmplugin_ilx_*

Component: Local Traffic Manager

Symptoms:
After restarting the ilx plugin, new tmplugin_ilx_rpc_* stat files are being created, but old files are not being deleted.

Conditions:
- ilx configured
- ilx plugin restarted

Impact:
The presence of too many of these leftover files might prevent merged from rolling up stats and providing graphs and cause such errors:

err merged[8523]: 011b0900:3: TMSTAT error tmstat_remerge: Cannot allocate memory.

Workaround:
Delete stale tmplugin_ilx_* files manually

1035661-2 : REST Requests return 401 Unauthorized when using Basic Auth

Component: TMOS

Symptoms:
REST Requests are intermittently failing with a 401 error.

The restjavad-audit.*.log shows these requests are closely preceded by a 503 response from /mgmt/tm/auth/source.

Conditions:
Triggered when a REST request comes in using Basic Auth while an asynchronous task is executing on the BIG-IP.

An example of an asynchronous task is the BIG-IP processing an AS3 declaration.

Impact:
REST requests will fail with a misleading response code and for no readily apparent reason.

Workaround:
Use token based authentication for REST requests.

1035361-2 : Illegal cross-origin after successful CAPTCHA

Component: Application Security Manager

Symptoms:
After enabling CAPTCHA locally on BIG-IP with brute force, after configured login attempts, CAPTCHA appears, but after bypassing the CAPTCHA successfully the user receives a support ID with cross-origin violation.

Conditions:
- brute force with CAPTCHA mitigation enforced on login page.
- cross-origin violation is enforced on the login page.
- user fails to login until CAPTCHA appears
- user inserts the CAPTCHA correctly

Impact:
- blocking page appears.
- on the event log cross-origin violation is triggered.

Workaround:
- disable cross-origin violation enforcement.

1035133-3 : Statistics data are partially missing in various BIG-IQ graphs under "Monitoring" tab

Component: Application Visibility and Reporting

Symptoms:
In various BIG-IQ GUI forms under the "Monitoring" tab (for example Monitoring -> Local Traffic -> HTTP), data for some time periods are missing.

Multiple "Unexpected end of ZLIB input stream" errors appear in BIG-IQ DCD logs under /var/log/appiq/gc_agent-manager.log

Conditions:
BIG-IP is attached to BIG-IQ, traffic volume is high

Impact:
Data in BIG-IQ are missing therefore some graphs show incorrect information

Workaround:
None

1035121-3 : Configsync syncs the node's monitor status

Component: TMOS

Symptoms:
After config sync, nodes may be marked marked down when they are up, even if the monitor determines that the node is up.

The logs will show something similar to :

notice mcpd[8091]: 010714a0:5: Sync of device group /Common/device_trust_group to commit id 1 6986973310536375596 /Common/xxxxxxxx 1 from device /Common/yyyyyyyy

notice mcpd[8091]: 01070640:5: Node /Common/node1 address 10.10.100.1 monitor status down. [ /Common/icmp: up ] [ was up for 0hr:3mins:15sec ]
notice mcpd[8091]: 01070640:5: Node /Common/node2 address 10.10.100.2 monitor status down. [ /Common/icmp: up ] [ was up for 0hr:3mins:15sec ]

The node/pool member/pool/virtual server will be marked down.
Checking the actual monitor it will be up, tcpdump will show successful monitor transactions.

Conditions:
1. Two or more devices in a sync/failover device group
2. The config sync from-device has marked nodes down
3. A config sync occurs

This can occur on both incremental and full config sync.

Impact:
The node's monitor status is synced to the peer device. If the from-device's monitor was unable to reach the nodes and was marking the nodes as DOWN, then the node status will be set to DOWN on the other device, even if the monitor is successfully connecting to the node. This can cause a traffic disruption.

Note: the opposite can occur, where a "node up" status is sent to a device whose monitor is failing to connect to the nodes due to a network issue.

Workaround:
If a device is in this state, you can work around this issue by doing one of the following:

-- Save and reload the configuration on the device with the bad state
tmsh save sys config && tmsh load sys config

-- Perform a full-load sync from the peer device to the affected device:
(On the peer) tmsh run cm config-sync force-full-load-push to-group group-name

1035017-2 : Remove unused CA-bundles

Component: TMOS

Symptoms:
Some of the certificate bundles shipped on BIG-IP devices are not used and aren't updated. In particular, there are legacy bundles which aren't needed.

Conditions:
This affects certain internal certificate bundles on the BIG-IP file system:

Impact:
There is a chance that there might be failures when "internal certificates" expires.

Workaround:
None

1034953-2 : In explicit proxy, HTTP_STATCODE missing from syslog

Component: Local Traffic Manager

Symptoms:
HTTP_STATCODE missing from logs captured using request logging profile when HTTP request is made to explicit proxy virtual server.

Conditions:
- Configure explicit proxy virtual server
- Apply request logging on the same virtual server
- Send HTTP request to connect to a Host via the explicit virtual server

Impact:
HTTP_STATCODE not found in the logs captured from request logging

1034865-3 : CACHE::enable failed on private/no-store content

Component: Local Traffic Manager

Symptoms:
BIG-IP provides a possibility to cache HTTP responses with RAMCACHE feature. When a response has either "Cache-Control: private" or "Cache-Control: no-store", the CACHE::enable setting allows the content to be cached. This option was removed when a fix to ID 360047 was introduced.

Conditions:
-- A virtual server has a web-acceleration profile without a policy.
-- An iRule has CACHE::enable command, overwriting Cache-Control header's values "no-store" and/or "private".

Impact:
BIG-IP always requests for a response from the origin web server even when a response is cacheable, putting extra load on the origin web server.

1034589-2 : No warning is given when a pool or trunk that was in use by an high availability (HA) Group is deleted from the configuration.

Component: TMOS

Symptoms:
It is possible to delete a Pool or Trunk from the configuration while one or more high availability (HA) Groups still reference it.

As a result, the configuration of affected high availability (HA) Groups is automatically and silently adjusted (i.e. the deleted object is no longer referenced by any high availability (HA) Group).

The lack of warning about this automatic change could lead to confusion.

Conditions:
A pool or trunk is deleted from the configuration while still being referenced from a high availability (HA) Group.

Impact:
The automatic and silent removal of the deleted object from all high availability (HA) Groups may go unnoticed by BIG-IP Administrators, with potential consequences on the failover behavior of the devices.

1034509-4 : Sensor read errors on VIPRION C2200 chassis

Component: TMOS

Symptoms:
Due to LOP sensor read errors, the command 'tmsh show sys hardware' can list an RPM of 0 for some chassis fans.

Conditions:
- Running a C2200 VIPRION chassis
- Other conditions unknown

Impact:
Messages such as the following appear in /var/log/ltm:

warning chmand[7629]: 012a0004:4: hal_if_media_poll: media SVC exception: media: getLopReg error
err chmand[7629]: 012a0003:3: getSensorData: sensor read fault for Chassis fan 1, LOP return code -1 : File sensor/LopSensSvc.cpp Line 2315
err chmand[7629]: 012a0003:3: getSensorData: sensor read fault for Chassis fan 2, LOP return code -1 : File sensor/LopSensSvc.cpp Line 2315
err chmand[7629]: 012a0003:3: getSensorData: sensor read fault for Chassis fan 3, LOP return code -1 : File sensor/LopSensSvc.cpp Line 2315
err chmand[7629]: 012a0003:3: getSensorData: sensor read fault for Chassis fan 4, LOP return code -1 : File sensor/LopSensSvc.cpp Line 2315
warning chmand[7629]: 012a0004:4: getLopReg Sock error: send to lopd failed [lopd addr:/var/run/lopdsvr] [client addr:/var/run/hwctl.hal.sock] (errno:2) No such file or directory
warning chmand[7629]: 012a0004:4: GET_STAT failure (status=0xc) page=0x21 reg=0x50
err chmand[7629]: 012a0003:3: getSensorData: sensor read fault for Chassis 3.3V main voltage, LOP return code -1 : File sensor/LopSensSvc.cpp Line 2315
notice chmand[7629]: 012a0005:5: Tmstat::updateSensorTbls: HAL SenSvc error: send to lopd failed [lopd addr:/var/run/lopdsvr] [client addr:/var/run/hwctl.hal.sock] (errno:2) No such file or directory
warning chmand[7629]: 012a0004:4: getChassisPwrSup err: send to lopd failed [lopd addr:/var/run/lopdsvr] [client addr:/var/run/hwctl.hal.sock] (errno:2) No such file or directory
warning chmand[7629]: 012a0004:4: getChassisPwrSup err: send to lopd failed [lopd addr:/var/run/lopdsvr] [client addr:/var/run/hwctl.hal.sock] (errno:2) No such file or directory

Tmsh show sys hardware will list an RPM of 0 for chassis fans affected by the sensor read errors

Workaround:
No workaround currently known.

1034365-2 : DTLS handshake fails with DTLS1.2 client version

Component: Local Traffic Manager

Symptoms:
DTLS handshake will be unsuccessful when client initiates a handshake with BIG-IP with DTLS1.2 version

Conditions:
When there is a DTLS client which supports both DTLS 1.0 and DTLS 1.2, then this problem could occur.

Impact:
DTLS handshakes can fail.

Workaround:
If possible, force the client to use only DTLS 1.0 in the client hello negotiation.

1034009-3 : CGNAT+Subscriber Discovery - NAT IP with wrong route domain on the CGNAT Log

Component: Carrier-Grade NAT

Symptoms:
The route domain ID for the translated IP is incorrect in the log message.

Conditions:
This issue will be seen when the different route domain are configured for incoming and outgoing traffic.

Impact:
Log messages will have an incorrect domain-id.

Workaround:
None

1033969-3 : MPLS label stripping needs next protocol indicator

Component: TMOS

Symptoms:
MPLS label stripping does not participate in the MPLS control-plane, and MPLS does not have a next protocol indicator.

Conditions:
This is encountered when attempting to pass IPv6 packets to GRE-encapsulated MPLS on BIG-IP systems.

Impact:
GRE/MPLS packets with IPv6 traffic encapsulated are not forwarded to the egress VLAN.

Workaround:
None

1033897-1 : DNSSEC keys generated independently are still in use after GTM sync

Component: Global Traffic Manager (DNS)

Symptoms:
If GTM sync is broken around DNSSEC key rollover time and two devices generate a DNSSEC key independently, the key is still used for generating a DNSSEC signature after DNS config sync resumes.

Conditions:
-- iQuery connection broken between BIG-IP DNS devices during DNSSEC key rollover
-- A DNSSEC key is generated independently on the two affected devices
-- iQuery connection re-established, config sync resumes, and the DNSSEC key is overwritten on one device

Impact:
-- TMM continues using the old key for DNSSEC signatures
-- Different key in the running config than what is used for generating DNSSEC signatures.
-- Possibly invalid DNSSEC data in DNS caching resolvers.

Workaround:
Restart tmm on the affected device:

tmsh restart sys service tmm

1033829-1 : Unable to load Traffic Classification package

Component: Traffic Classification Engine

Symptoms:
After installation and initial configuration, the latest Traffic Classification IM package fails to load.

Conditions:
This type of behavior is observed when the system is configured as follows,

1. LTM provisioned
2. Create virtual servers with classification profile
3. Then provision PEM module
4. Do a Hitless upgrade

Impact:
The latest Traffic Classification IM package fails to load.

Workaround:
Once the TMM is restarted after the issue, the latest IM is loaded.

1033781 : IP Reputation database sync fails when DB variable iprep.protocol is set to auto-detect

Component: Advanced Firewall Manager

Symptoms:
The IP Reputation database is not updated at the regular intervals, as expected.

Conditions:
The DB variable iprep.protocol is configured with the default value of "auto-detect".

Impact:
The connection to the IP reputation database fails, and therefore traffic is not IP reputed.

Workaround:
Set the DB variable iprep.protocol to either ipv4 or ipv6, depending on the management IP.

1033761 : BIG-IP consumes excessive CPU when "Log Translation Fields" are enabled in logging policy

Component: Advanced Firewall Manager

Symptoms:
CPU utilization is excessive when logging is enabled

Conditions:
-- The traffic consists of UDP DNS requests being load-balanced to a back-end DNS responder.
-- Caching is not being used.
-- The virtual-server has a Firewall policy, a DDoS policy, a udp datagram-lb profile, and a security-log-profile (HSL).

When the logging policy is present, the BIG-IP system consumes excessive CPU.

Impact:
High CPU usage while processing less number of packets

Workaround:
Do not use log-translations

1033689-2 : BGP route map community value cannot be set to the required range when using AA::NN notation

Component: TMOS

Symptoms:
The community value for BGP route map entries should allow values of 1-65535 for both components, but it is not allowing 65535 for either component when using AA::NN notation.

Conditions:
-- Using BGP route map community values.
-- Attempting to set one or both components to 65535 with
using AA::NN notation

Impact:
Unable to use the full range of BGP route map community values.

Workaround:
None

1033537-3 : Cookie persistence profile only examines first cookie with required name.

Component: Local Traffic Manager

Symptoms:
The persistence cookie profile does not appear to process multiple cookies with the same name. If that cookie is not valid for the selected pool or if it fails to decrypt, if encryption is enabled, it stops - even if there are other cookies of the same name.

Conditions:
-- Virtual server with an HTTP profile and a cookie persistence profile.
-- Multiple cookies with the same name arrive from the client.
They can appear in a single Cookie header or two separate headers.
-- This can occur with cookie encryption enabled or disabled.

Impact:
Impact to user is not clear just that cookie persistence profile does not take effect as expected and BIG-IP just selects a pool member based on load balance method.

Workaround:
Do not use cookie persistence profile.

1033333-3 : FIPS: importing a stub SSL key file results in 2 keys that share the same FIPS device

Component: TMOS

Symptoms:
The 'tmsh list sys crypto key' command lists multiple keys with the same FIPS ID.

Conditions:
-- BIG-IP using a FIPS HSM
-- Import the stub FIPS key file contents (the filestore certificate_key file object) into the system as a new file object.

Impact:
Two object points to same key stored in the FIPS HSM. If one of the two objects are deleted, the key stored in the HSM will be deleted. This will result in traffic failures, i.e. TLS handshake failures.

Workaround:
Do not create a second MCP SSL key object by importing the stub key file content from the filestore.

1033025-2 : TMM might crash when unsupported bot iRule is used

Component: Application Security Manager

Symptoms:
TMM crashes.

Conditions:
Bot defense iRule with async commands is attached to virtual server, for example:

when BOTDEFENSE_ACTION
{
        after 7000 {
            if { ([BOTDEFENSE::device_id] eq "0") }
                {
                    log local0. "Violations Names: [BOTDEFENSE::device_id];"
                    BOTDEFENSE::action browser_challenge
                }
           }

}

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

1033021-1 : UI: Partition does not work when clicking through security zones

Component: Advanced Firewall Manager

Symptoms:
1. Zones UI is not refreshed when the partition changes
2. You are unable to administer zones while using partitions

Conditions:
Change the partition in GUI, then view the corresponding mapped zones.

Impact:
All zones are displayed for every partition instead of just the mapped zones

Workaround:
None

1033017-4 : Policy changes learning mode to automatic after upload and sync

Component: Application Security Manager

Symptoms:
When newly created policies are synchronized, the learning states of the policies are different.

Conditions:
-- Active/Active high availability (HA) setup in sync-failover device group with ASM enabled.
-- Sync a new policy configured with disabled/manual learning mode.

Impact:
Learning mode changes from disabled to automatic on peer device after sync, so learning modes differ on the peer devices.

Workaround:
1. On the peer device, change the learning mode to disabled.
2. Push sync from the originator device.

Both devices are then in sync and policies have the same learning mode (disabled), so operations complete as expected.

1032949 : Dynamic CRL configured with client authentication profile as "Request" causes connection termination without certificate

Component: TMOS

Symptoms:
When you configure Dynamic CRL and set the client authentication as "Request", the handshake fails when clients do not supply a certificate.

Conditions:
Clientssl profile configured with the following:

1. Dynamic CRL
2. Client Authentication enabled with "Request" option

Impact:
SSL handshake fails

Workaround:
Workaround 1:
Use Static CRL

Workaround2:
Use Client authentication with either "Require" or "Ignore"

Workaround3:
Disable TLS1.2 and below versions in the Client SSL profile.
Which means allow only TLS1.3 traffic.

1032921-3 : VCMP Guest CPU usage shows abnormal values at the Host

Component: TMOS

Symptoms:
CPU usage is represented as 100% for each CPU core, so for instance top may report CPU usage above 100%
for a two CPU system, given that in that case 200% would actually represent the full CPU capacity.

Here for vCMP with 'n' CPUs reporting more than n*100% for CPU utilization.

Conditions:
VCMP provisioned on BIG-IP

Impact:
CPU utilization is incorrectly shown.

Workaround:
NA

1032821-5 : Syslog: invalid level/facility from /usr/libexec/smart_parse.pl

Component: TMOS

Symptoms:
When the smart_parse.pl script is run and finds a disk error, it attempts to log an error with an incorrect syslog level.

Conditions:
Run smart_parse.pl on a BIG-IP platform with a disk error.

Impact:
When this script is run (usually as a cron job) the following message occurs:

syslog: invalid level/facility: error at /etc/cron.daily/pendsect line 194.

Workaround:
None.

1032737-1 : IPsec: tmm SIGSEGV in getlocaladdr in ikev2_initiate

Component: TMOS

Symptoms:
Tmm crashes while passing IPsec traffic

Conditions:
Wildcard selectors are used.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

1032329 : A user with role "Firewall Manager" cannot open the Rule List editor in UI

Component: Advanced Firewall Manager

Symptoms:
When a user with the role "Firewall Manger" attempts to access the Rule List editor page, they receive the error message "General database error retrieving information."

Conditions:
User has "Firewall Manager" role

Impact:
User cannot see details of Rule List via UI

Workaround:
Use TMSH to view Rule List details

1032257-2 : Forwarded PVA offload requests fail on platforms with multiple PDE/TMM

Component: TMOS

Symptoms:
Forwarded PVA requests use a static bigip_connection that does not have its pva_pde_info initialized, which results in offload failure on platforms that have multiple PDEs per TMM.

Conditions:
Pva_pde_info is not initialized and Forwarded PVA requests occur.

Impact:
Hardware offload does not occur.

1032077-2 : TACACS authentication fails with tac_author_read: short author body

Component: TMOS

Symptoms:
If a TACACS user is part of a group with 10s of attribute value pairs (AVPs) were the length of all the avp's combined is such that the authorization reply message from the TACACS server is segmented, the login will fail.

The error message that is logged when the login fails is
"tac_author_read: short author body, 4468 of 6920: Operation now in progress" Where the numbers 4468 and 6920 will vary.

Conditions:
- TACACS authentication
- TACACS user that is part of a group where the combined length of the AVPs is greater then the largest TCP segment the TACACS server is able to send.

Impact:
User is unable to login.

Workaround:
If possible, reduce the number of attributes of the TACACS group or user.

1031945-3 : DNS cache configured and tmm stuck in 'not ready' state indefinitely after TMM restart or reboot★

Component: Global Traffic Manager (DNS)

Symptoms:
Clusterd reports "TMM not ready" right after "Active"

Jun 23 18:21:14 slot2 notice sod[10084]: 010c0019:5: Active
Jun 23 18:21:14 slot2 notice clusterd[10920]: 013a0019:5: Blade 2 turned Yellow: TMM not ready

All blades are showing 'unavailable'

Conditions:
1. Multiple dns cache-resolver and/or net dns-resolver objects configured with names that only differ in letter case, e.g. /Common/example-dns-cache and /Common/Example-DNS-cache

2. Occurs after rebooting/upgrading

Impact:
The system remains inoperative.

1031909-1 : NAT policies page unusable due to the page load time

Component: Advanced Firewall Manager

Symptoms:
You cannot work with the NAT polices page because the page takes too long to load.

Conditions:
-- The device has a large number of VLANs and virtual servers
-- The device has a large number of NAT policies and partitions
-- From GUI navigate to the NAT policies page

Impact:
NAT policies page takes a long time to load.

1031901-1 : In HTTP2 deployment, RST_STREAM sent to client if server in CLOSING state is picked

Component: Local Traffic Manager

Symptoms:
When request from client is forwarded to server which is in CLOSING state due to server sent GOAWAY but not yet close the connection, request will be failed to be forwarded to server and RST_STREAM will be sent to client

Conditions:
-- Virtual Server with HTTP2 profile
-- There is an open connection from BIG-IP to the server.
-- The server sends a GOAWAY message to the BIG-IP and the connection is kept open.
-- The client sends a request to BIG-IP, BIG-IP picks the connection mentioned above to forward the request to

Impact:
Traffic from the specific client is interrupted

Workaround:
N/A

1031461-4 : Session awareness entries aren't mirrored to both sides of an active-active deployment.

Component: Application Security Manager

Symptoms:
Session awareness entries aren't mirrored to both sides of an active-active deployment.

session db entries remain in bd (ASM) daemon until manually removed

Conditions:
- ASM provisioned
- Security policy attached to a virtual server
- Session tracking and Login Page enabled in the policy

Impact:
ASM session tracking feature isn't properly functioning on active-active deployment.

1031425-2 : Provide a configuration flag to disable BGP peer-id check.

Component: TMOS

Symptoms:
A fix for ID 945265 (https://cdn.f5.com/product/bugtracker/ID945265.html) introduced strict checking of a peer-id. This check might be not desired in some configurations.

Conditions:
EBGP peering with two routers in the same autonomous system, configured with the same peer-id.

Impact:
BIG-IP will not pass the NLRIs between two eBGP peers. The following message can be seen in debug logs:
172.20.10.18-Outgoing [RIB] Announce Check: 0.0.0.0/0 Route Remote Router-ID is same as Remote Router-ID

Workaround:
Change peer-ids to be unique on eBGP peers.

1031357-1 : After reboot of standby and terminating peer, some IPsec traffic-selectors are still online

Component: TMOS

Symptoms:
HA Standby marks traffic selectors up when they are actually down on the Active device.

Conditions:
-- High availability (HA) configured and mirroring configured
-- IPsec tunnels up on Active
-- Reboot Standby
-- Standby starts correctly and all SAs are mirrored
-- Tunnel(s) go down on Active

Impact:
-- Traffic Selector is incorrectly marked up on the Standby when it is actually down on the Active.
-- While this is cosmetic, the information is misleading.

Workaround:
None

1031117-2 : The mcpd error for virtual server profiles incompatible needs to have more details

Component: TMOS

Symptoms:
The mcpd error message MCPDERR_VIRTUAL_SERVER_INCOMPAT_PROFILE_PROTO currently has text which does not provide detail information.
-The error text should also list which profile is problematic, and the protocol that the virtual server is using. This will help Support pinpoint the issue much faster.

Conditions:
- Configure a virtual server with a profile that is invalid for its protocol.

Impact:
The error text not listing which profile is problematic, and the protocol that the virtual server is using.

Workaround:
None.

1031025-2 : Nitrox 3 FIPS: Upgrade from v12.1.x to v14.1.x results in new .key.exp files for the FIPS keys created before upgrade.★

Component: TMOS

Symptoms:
During upgrade from v12.1.x to v14.1.x, New ".key.exp" export file is created for the FIPS keys present in the card.

Conditions:
This happens during the upgrade from v12.1.x to v14.1.x for the existing keys with ".key" extension to it in the label.

It occurs only if the key is deleted/not present in the FIPS card (e.g. a faulty card), and BIG-IP has the configuration / metadata for the missing keys.

Impact:
The upgrade fails while loading the configuration.

Workaround:
Delete the missing key's configuration from config file, then perform the upgrade.

1030853-2 : Route domain IP exception is being treated as trusted (for learning) after being deleted

Component: Application Security Manager

Symptoms:
Traffic is considered trusted for learning even though a trusted IP exception was deleted.

Conditions:
Creating and deleting a route domain-specific IP exception

Impact:
Traffic learning suggestions scores are miscounted.
In automatic policy builder mode the policy can be updated by the policy builder based on the wrong score counting.

Workaround:
Stop and restart learning for the relevant policy

1030645-3 : BGP session resets during traffic-group failover

Component: TMOS

Symptoms:
BGP session might be hard reset during a traffic group failover. The following log is displayed:

BGP[11111]: BGP : %BGP-5-ADJCHANGE: neighbor 1.1.1.1 Down Peer reset due to nh address change

Conditions:
Floating self-ips defined on a single vlan/subnet, with different traffic-groups configured.

Impact:
BGP session goes down during traffic-group failover.

1030533-2 : The BIG-IP system may reject valid HTTP responses from OCSP servers.

Component: Local Traffic Manager

Symptoms:
When this happens, the BIG-IP system can be seen closing the TCP connection to the OCSP server prematurely (for instance, as soon as the HTTP response headers are received, before the response body is transmitted).

If log.keymgmtd.level is set to debug, an error similar to the following example will be logged to the /var/log/ltm file:

Jun 22 14:40:08 bigip1.local debug tmm[9921]: 01a40004:7: OCSP validation result of certificate(/config/filestore/files_d/Common_d/certificate_d/:Common:endpoint-intermediate_69993_1): OCSP response - (connection - HTTP error), certificate status - (error), lifetime - 10.

Conditions:
The server uses a Content-Type HTTP header in its response that isn't just "application/ocsp-response" (for instance, it may include a charset specification after that string, or the string may use a mix of uppercase and lowercase letters).

Impact:
Valid HTTP responses from OCSP servers are rejected. OCSP stapling and OCSP validation are not available on the BIG-IP system.

Workaround:
If you control the OCSP server and are able to customize its HTTP response headers, setting the Content-Type to simply "application/ocsp-response" (all lowercase) is a workaround for this issue.

Otherwise, no workaround exists.

1030237-2 : Zxfrd core and continual restart when out of configured space

Component: Global Traffic Manager (DNS)

Symptoms:
Zxfrd is in restart loop and occasionally cores.

Conditions:
Zxfrd is out of the configured space.

Impact:
Dns express and rpz does not work properly.

Workaround:
1. locate any zone that is suspiciously large and delete that zone from dns zones if unexpected;
2. Allocate more space for zxfrd using dnsexpress huge pages.
tmsh modify sys db dnsexpress.hugepages { value "8000" }
8000 should be adjusted accordingly.

1030185-3 : TMM may crash when looking up a persistence record using "persist lookup" iRule commands

Component: Local Traffic Manager

Symptoms:
Tmm may crash with a SIGSEGV when looking up a persistence record in an iRule when using the "any" flag

Conditions:
-- The persistence entry exists on a virtual server other than the virtual server the iRule is configured on.
-- The iRule contains [persist lookup source_addr "[IP::client_addr] any"]

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Discontinue the use of the "any" flag in the persist lookup iRule.

1029989-2 : CORS : default port of origin header is set 80, even when the protocol in the header is https

Component: Application Security Manager

Symptoms:
Destination port is set to 80, instead of 443, for Origin header value that has https in the schema field.

This causes unexpected "Illegal cross-origin request" violation.

Conditions:
- Using CORS enforcement where you allow HTTPS and port 443 for an origin name
- The Origin header value has https in the schema
- The Origin header value does not specify non default port number

Impact:
Unexpected "Illegal cross-origin request" violation.

Workaround:
Allow port 80 or use 'any' for the given origin name.

1029949-1 : IPsec traffic selector state may show incorrect state on high availability (HA) standby device

Component: TMOS

Symptoms:
IPsec traffic selector state can be viewed in the config utility or by tmsh with the "tmsh show net ipsec traffic-selector" command. On an high availability (HA) standby device, some selector states may be incorrect.

Conditions:
-- High availability (HA) environment
-- Standby reboots or in some way, such as a tmm restart, is forced to re-learn all the mirrored IPsec security associations (SAs).

Impact:
There is no functional impact. The issue is that a selector may incorrectly appear down in one or both directions.

Workaround:
When the tunnel re-keys on the high availability (HA) active device, the selector state shows the correct value.

1029633 : Intermittent REST api failure when using PUT to modify LTM config objects

Component: Device Management

Symptoms:
For the Application editor user role, REST PUT calls to modify LTM Node parameter 'session' to "user-enabled" or "user-disabled" will fail randomly with the error response " seteuid error 1: Operation not permitted ".

Conditions:
1. User role is Application Editor.
2. REST PUT method is used to modify the LTM->Node->session
3. Only the PUT operation for modifying LTM->Node->session tends to return the error response.
4. No other LTM config object was facing this issue.

Impact:
Intermittent failures to modify LTM->Node->session will fail, and subsequent operations will succeed.

Workaround:
Using PATCH instead of PUT to modify /mgmt/tm/ltm/node "session" attribute will stop the intermittent failures observed with the PUT operation.

1029397-1 : Tmm may crash with SIP-ALG deployment in a particular race condition

Component: Service Provider

Symptoms:
Tmm crashes in SIP-ALG deployment, when lsn DB callback is returned from a different tmm, and the SIP connection has been lost on tmm where the REGISTER request arrived.

Conditions:
--- SIP-ALG is deployed
--- Processing of SIP REGISTER message at server side
--- lsn DB entry is mapped to a different tmm

Impact:
Traffic disrupted while tmm restarts

Workaround:
NA

1029173-3 : MCP daemon does not log an error message upon connection failure to PostgreSQL server.

Component: TMOS

Symptoms:
When mcpd fails to connect to PostgreSQL, the PostgreSQL error code and message is not logged. A very generic exception is thrown when the connection is lost.

Conditions:
- AFM is provisioned.
- Mcpd fails to connect pgsql.

Impact:
The failed connection is not logged, which makes the problem more difficult to troubleshoot.

1029069-1 : Non-ASCII characters are not displayed correctly.

Component: Local Traffic Manager

Symptoms:
Add new address ip with value that includes non ASCII characters in data group list.
Then go back GUI->Local Traffic ›› iRules : Data Group List and click it.
The value field does not display entered values.

Conditions:
Adding non ASCII characters to value field in data group lists.

Impact:
Impact the functioning of the address record, when the datagroup is called by an iRule for example.

Workaround:
Do not add non ASCII characters to value field.

1028969-2 : An unused traffic-selector can prevent an IKEv2 IPsec tunnel from working

Component: TMOS

Symptoms:
If both IKEv1 and IKEv2 try to listen to the same self IP address on the BIG-IP for a local tunnel IP address, only one can win, and previously a v2 ike-peer would be blocked if a v1 listener managed to get installed first.

If a partial tunnel config exists, with no ike-peer and only ipsec-policy and traffic-selector definitoins, this is understood to be IKEv1 implicitly, by default, and will install a v1 listener for the IP address and port.

Then if a fully configured ike-peer is added using IKEv2, it can fail to establish the required listener for v2 when an existing v1 listener is squatting on that IP address.

Conditions:
Conflict between IKEv2 and IKEv1 on the same IP address when:

-- a v2 ike-peer has local tunnel IP address X

-- a v1 ike-peer, or a traffic-selector with no peer at all, has the same local IP address X

Impact:
An IKEv2 tunnel can fail to negotiate when v2 packets cannot be received on a local IP address because a listener for IPsec cannot be established on that IP address.

Workaround:
You can avoid conflict between v1 and v2 by:

-- removing a traffic-selector not in use (which is v1)

-- avoiding use of the same local IP in both v1 and v2 definitions of ike-peer

1027961-1 : Changes to an admin user's account properties may result in MCPD crash and failover

Component: TMOS

Symptoms:
-- The mcpd process fails with a segmentation fault and restarts, leaving a core-dump file.
-- Active sessions in the Configuration Utility report "unable to contact BIG-IP device".
-- Various processes may record entries into the "ltm" log saying "Lost connection to mcpd."

Conditions:
-- Changes to properties of administrative user-login accounts are occurring.
-- A user account being changed has a current, active session in the Configuration Utility GUI.

Impact:
The failure and restart of mcpd will trigger a restart of many other processes, including the TMM daemons, thus interrupting network traffic handling. In high availability (HA) configurations, a failover will occur.

Workaround:
Before making changes to the account properties of an administrative user, where the changes affect the role, make certain that all GUI Configuration Utility sessions opened by that user are logged out.

1027805-3 : DHCP flows crossing route-domain boundaries might fail.

Component: Local Traffic Manager

Symptoms:
DHCP flows crossing route-domain boundaries might fail.

Conditions:
Example of a configuration leading to the problem:
- route-domain RD%2 with parent defined as route-domain RD%1.
- Virtual-server in route-domain RD%2.
- Pool member configured in RD%2 (sharing IP addressing with RD1)
- DHCP client connects to the virtual-server in route-domain RD%2.
- Route lookup for a pool member ends up with connection in route-domain RD%1

Impact:
The second and subsequent DHCP clients requests will not be forwarded to the DHCP pool members.

Workaround:
When configuring a DHCP pool member, use the ID of the parent route-domain (the one that will be returned by a route-lookup for the pool member's IP address).

1027657-3 : Monitor scheduling is sometimes inconsistent for "require M from N" monitor rules.

Component: Global Traffic Manager (DNS)

Symptoms:
Inconsistent monitor intervals for resource monitoring.

Conditions:
"require M from N" monitor rules configured.

Impact:
Monitor status flapping.

Workaround:
Do not use "require M from N" monitor rules.

1027601 : AFM IP Error Checksum and Bad TCP Checksum vectors not supported

Component: TMOS

Symptoms:
AFM does not report IP Checksum and Bad TCP Checksum vector attacks because these signatures are dropped in the SmartNIC hardware as malformed packets.

Conditions:
-- BIG-IP Virtual Edition running on a device with a SmartNIC -- AFM provisioned and configured to detect IP Checksum and Bad TCP Checksum vectors.

Impact:
SmartNIC drops the packets and they are not reported by AFM.

1027481-2 : 'error: /bin/haloptns unexpected error -- 768' log messages generated on A110 and D112 platforms

Component: TMOS

Symptoms:
'error: /bin/haloptns unexpected error -- 768' message logged by system commands, including some startup scripts and the software installation process.

Running /bin/haloptns manually displays this output:
'Expected 32 bit OPTN field, found field "" instead.'

Conditions:
-- One of the following platforms:
- D112 (B10350v-F (FIPS) or B10150s-N (NEBS))
- A110 (VIPRION B4340N (NEBS) blades)

-- The system does not use RAID.

Impact:
Excessive "error: /bin/haloptns unexpected error -- 768" error messages in log files, and command output (e.g. "cpcfg").

There is no other impact, and the messages can be ignored.

Workaround:
Ignore the error messages.

1027477-2 : Virtual server created with address-list in custom partition non-RD0 does not create listener

Component: TMOS

Symptoms:
After creating a virtual-server in a partition with a non RD0 route-domain attached, the virtual address listener does not get associated with the virtual server and the virtual address stays offline.

Conditions:
-- An address list (traffic matching criteria) is used when creating the virtual server in the GUI.
-- The virtual server is created with a route domain other than the default route domain.

Impact:
The virtual address remains in an offline state.

Workaround:
None.

1027237-3 : Cannot edit virtual server in GUI after loading config with traffic-matching-criteria

Component: TMOS

Symptoms:
After creating a virtual server with a traffic-matching-criteria and then loading the configuration, you are unable to make changes to it in the GUI. Attempting to do so results in an error similar to:

0107028f:3: The destination (0.0.0.0) address and mask (::) for virtual server (/Common/test-vs) must be be the same type (IPv4 or IPv6).

Conditions:
-- A virtual server that has traffic-matching-criteria (i.e., address and/or port lists).
-- The configuration has been saved at least once.
-- Attempting to edit the virtual server in the GUI.

Impact:
Unable to use the GUI to edit the virtual server.

Workaround:
Use TMSH to modify the virtual server.

1026989-2 : More specific dynamic or static routes created for application traffic processing can erroneously replace the route to the management subnet.

Component: TMOS

Symptoms:
When a dynamic or static route is instantiated for application traffic processing, protection exists at configuration-validation time to ensure that the new route does not overwrite how the management port's subnet is accessed.

To do so, the destination of the new route is compared to the management port's subnet. If the two match, the new route is only instantiated in TMM, but not in the Linux host's routing table.

The issue is this logic fails when the new route is a subset of the management port's subnet. For example, if the new route is to destination 10.215.50.0/25, and the management port's subnet is 10.215.50.0/24, the new route will be added to both TMM and the Linux host, bypassing the aforementioned protection.

Instead, the logic should check for overlapping subnets, not just strict equality.

Conditions:
- A dynamic or static route whose destination partially overlaps with the management port's subnet is added to or learnt by the system.

Impact:
A new and more specific route for part of the management port's subnet is added to the Linus host's routing table.

Part of the management port traffic can fail or be misrouted via a TMM interface.

If multiple routes of this kind are instantiated (e.g. 10.215.50.0/25 + 10.215.50.128/25), the whole management port's subnet can be overtaken.

Workaround:
Redesign your network and then reconfigure the BIG-IP system so that TMM does not need access to the management port's subnet or part of it (thus negating the need to create a route to that destination in the first place).

If this is not possible, you can temporarily resolve the issue by using the `route` or `ip` utility on the Linux host subsystem to manually fix the routing table. However, the issue will occur again the next time the problematic route is loaded or learnt by the system.

1026973-2 : Static routes created for application traffic processing can erroneously replace the route to the management subnet.

Component: TMOS

Symptoms:
If a static route is added via "tmsh create net route" (or equivalent configuration ingestion system), and this route's destination matches the management port's subnet, the protection that prevents the new route from being propagated to the Linux kernel will initially work, but will fail after mcpd is restarted or the system is rebooted.

Conditions:
- A static route whose destination matches the management port's subnet is added to the system.

- The system is rebooted or mcpd is restarted.

Impact:
The directly-connected route for the management port's subnet appearing in the Linux host's routing table is replaced, or complemented, by a new and unnecessary route.

In either case, management port traffic can fail or be misrouted via a TMM interface.

Workaround:
Align your network and the BIG-IP system so that TMM does not need access to the management port's subnet (thus negating the need to create a route to that destination in the first place).

If this is not possible, you can temporarily resolve the issue by using the `route` or `ip` utility on the Linux host subsystem to manually fix the routing table. However, the issue will occur again the next time mcpd or the system restarts.

1026861-2 : Live Update of Browser Challenges and Anti-Fraud are not cleaned up

Component: TMOS

Symptoms:
When installing live updates of either Browser Challenges (ASM) or Anti-Fraud (FPS), the update file remains in the system, taking up disk space and increasing config sync size.

Conditions:
Installing Live Update files of either Browser Challenges (part of ASM) or Anti-Fraud (part of FPS).

Impact:
Increased disk size, config size, and config-sync size.

Workaround:
It is possible to manually clean up old, unused Live Update files using TMSH or REST:
tmsh delete security datasync update-file datasync-global/<file>

Important: Use caution, as deleting update-files that are in use could cause the system to go offline or get out of sync. The in-use update files can be observed under the GENERATION PROFILES section of the /var/log/datasyncd.log file.

Note: There is no auto-completion on the 'update-file' keyword.

1026813-5 : LCD IP address is missing from /etc/hosts on iSeries

Component: Global Traffic Manager (DNS)

Symptoms:
On iSeries platforms, /etc/hosts is missing an entry for the LCD IP address, 127.4.2.2.

Conditions:
Run any iSeries appliance.

Impact:
- BIG-IP generates reverse DNS requests for the LCD.
- /var/log/touchscreen_lcd lists the IP address "127.4.2.2" as the hostname

Workaround:
Add an entry for the LCD to /etc/hosts by modifying the 'remote-host' global settings, by running the following tmsh command:

tmsh modify sys global-settings remote-host add { lcd { addr 127.4.2.2 hostname lcd } }
tmsh save sys config

Or, in the BIG-IP GUI, System >> Configuration : Device : Hosts

1026621-2 : DNS cache resolver could not connect to remote DNS server with snatpool if multiple routes exist

Component: Global Traffic Manager (DNS)

Symptoms:
DNS query could not be resolved properly.

Conditions:
1. dnscache.matchwildcardvip is enabled
2. Multiple possible routes to destination DNS server exist. This can be triggered by either using a gateway pool, or using dynamic routing with multiple equal paths available.

Impact:
Unable to use snatpool for cache resolver.

Workaround:
Ensure only a single route to destination exists, or disable dnscache.matchwildcardvip

NOTE: With dnscache.matchwildcardvip disabled, snatpool will not be used.

1026605-4 : When bigd.mgmtroutecheck is enabled monitor probes may be denied for non-mgmt routes

Component: Local Traffic Manager

Symptoms:
When bigd.mgmtroutecheck is enabled and monitors are configured in a non-default route-domain, bigd may calculate the interface index incorrectly. This can result in monitor probes improperly being denied when they egress a non-mgmt VLAN. Or monitor probes might be allowed to egress the management interface

Conditions:
-- Bigd.mgmtroutecheck is enabled.
-- Monitor probes in a non-default route domain
-- More than one VLAN configured in the route-domain

Impact:
Monitor probes may be denied even thought they egress a non-mgmt VLAN.

Monitor probes may be improperly allowed out a mgmt interface.

/var/log/ltm:
err bigd.0[19431]: 01060126:3: Health check would route via mgmt port, node fc02:0:0:b::1%1. Check routing table.

bigd debug log:
:(_do_ping): probe denied; restricted egress device and route check [ tmm?=false td=true tr=false addr=fc02:0:0:b::1%1:0 srcaddr=none ]

Workaround:
Disable bigd.mgmtroutecheck, reduce the number of VLANs inside the route-domain

1026581-1 : NETFLOW/IPFIX observationTimeMilliseconds Information Element value is not populated correctly.

Component: TMOS

Symptoms:
When logging Carrier Grade NAT Port Port Block Allocation (CGNAT PBA) events using NetFlow/IPFIX log destinations,
if the AFM module is not enabled, the observationTimeMilliseconds Information Element value is incorrectly reported as zero in reported events.

Conditions:
Using CGNAT PBA, logging to a NetFlow/IPFIX log destination, and AFM is not enabled.

Impact:
CGNAT PBA events containing the observationTimeMilliseconds Information Element will report incorrect values for this field.

Workaround:
1) Enable AFM module, or
2) Enable lsn-legacy-mode in the log profile

1026549-3 : Incorrect BIG-IP Virtual Edition interface state changes may be communicated to mcpd

Component: TMOS

Symptoms:
For some BIG-IP Virtual Edition drivers, TMM may occasionally communicate an incorrect interface state change that might cause the interface to flap.

Conditions:
-- BIG-IP Virtual Edition using ixlv, ixvf, mlx5, or xnet drivers.
-- More TMMs and interfaces configured make this issue more likely to happen, but it happens randomly.

Impact:
In the case where the interface is part of a trunk a flap will occur when this happens.

There may be other as-yet unknown impacts for this issue.

Workaround:
Use a different VE driver than one of the ones listed above.

1026277-2 : Apply Policy can get ignored in auto-sync setup, while importing/replacing several existing policies with policies that have Policy Builder enabled

Component: Application Security Manager

Symptoms:
With auto-sync enabled, replacing multiple policies on Unit-A with policies having Policy Builder enabled, "Apply Policy" initiated by Policy Builder can be ignored at Unit-B that results all the policy on Unit-A appear as not-edited while a few policies on Unit-B appear as edited.

Conditions:
-- Using auto-sync
-- Multiple policies are replaced (imported as replacing method) at the same time
Note : bulk import/replace is only possible via Ansible (also, maybe scripting that utilizes REST API)
-- Those imported policies have Policy Builder enabled

Impact:
Inconsistent policy state in auto-sync members

Workaround:
Make a minor update on those affected policies, then "Apply Policy" will fix the inconsistent state.

1026273-1 : HA failover connectivity using the cluster management address does not work on VIPRION platforms★

Component: TMOS

Symptoms:
Upon upgrade to an affected version, failover communication via the management port does not work. You may still see packets passing back and forth, but the listener on the receiving end is not configured, and therefore the channel is not up.

Here are a few symptoms you may see:
-- Running 'tmsh show cm failover-status' shows a status of 'Error' on the management network.

-- Running 'tmctl' commands reports the disconnected state:
Example:
$ tmctl -l sod_tg_conn_stat -s entry_key,last_msg,status
entry_key last_msg status
----------------------------- ---------- ------
10.76.7.8->10.76.7.9:1026 0 0 <--- Notice there is no 'last message' and 'status' is 0, which means disconnected.
10.76.7.8->17.1.90.2:1026 1623681404 1

-- Looking at 'netstat -pan | grep 1026 command output, you do not see the management port listening on port 1026:
Example (notice that the management IP from the above example of 10.76.7.9 is not listed):
# netstat -pan | grep 1026
udp 0 0 10.10.10.10:1026 0.0.0.0:* 6035/sod

-- Listing /var/run/ contents shows that the chmand.pid file is missing:
# ls /var/run/chmand.pid
ls: cannot access /var/run/chmand.pid: No such file or directory

Conditions:
-- Running on VIPRION platforms
-- Only cluster management IP address is configured: No cluster member IP addresses are configured
-- Install a software version where ID810821 is fixed (see https://cdn.f5.com/product/bugtracker/ID810821.html)
-- Management IP is configured in the failover configuration

Impact:
If only the management is configured for failover or there are communication issues over the self IP (such as misconfigured port lockdown settings), then the devices may appear to have unusual behavior such as both going active.

Workaround:
-- Configure a cluster member IP address on each individual blade in addition to the Cluster management IP address.

1025965-3 : Audit role users cannot see folder properties under sys-folder

Component: TMOS

Symptoms:
Users with auditor role cannot create, modify, or delete any data, nor can they view SSL keys or user passwords. Users with the Auditor role have access to all partitions on the system, and this partition access cannot be changed.

Conditions:
Run tmsh command to check the access under sys folder

Impact:
Tmsh does not allow sys folder component for auditor.
no-ref-check, traffic-group, device-group

1025529-1 : TMM generates core when iRule executes a nexthop command and SIP traffic is sent

Component: Service Provider

Symptoms:
If an iRule uses the 'nexthop' command to select a VLAN for a virtual server, TMM may crash.

Conditions:
-- Virtual server with SIP profile and iRule that executes a 'nexthop' command
-- SIP network traffic occurs

Impact:
Traffic disrupted while TMM restarts.

Workaround:
Avoid using 'nexthop vlan' in an iRule in a SIP environment.

1025513-2 : PAM Authenticator can cause authorization failure if it fails to lock /var/log/tallylog

Component: TMOS

Symptoms:
The following JSON content can be seen in the HTTP 401 response. (By looking at the capture or RESTful client)

{"code":401,"message":"Authorization failed: no user authentication header or token detected. Uri:http://localhost:8100/mgmt/tm/ltm/pool/?expandSubcollections=true Referrer:<ip_address> Sender:<ip_address>,"referer":<ip_address>,"restOperationId":12338804,"kind":":resterrorresponse"}

Contention for /var/log/tallylog lock might result in users failing to authenticate correctly. As a result of this issue, you might see the following message:

PAM Couldn't lock /var/log/pam/tallylog : Resource temporarily unavailable.

Conditions:
High concurrent authentication attempts may trigger this issue. For example, opening a connection, using basic authentication, performing a query (for example, get node list, get virtual address list, and set pool min active members), and then closing the connection. If done frequently enough, there is an occasional authentication failure.

Impact:
This intermittent auth issue results in failure of some auth request.

Workaround:
Since this is an intermittent authentication failure, wait a few seconds and then attempt to rerun auth request.

For automation tools, please use token-based authentication.

1025261-2 : When restjavad.useextramb is set, java immediately uses more resident memory in linux

Component: TMOS

Symptoms:
When restjavad.useextramb is set, java immediately reserves more memory and the process size (RSS) increases.

Conditions:
When restjavad.useextramb and when provision.extramb is set to a non-default value.

Impact:
The restjavad process size will use more RSS.

Workaround:
Revert the restjavad.useextramb value or set provision.extramb higher to compensate.

1025089-3 : Pool members marked down by database monitor due to stale cached connection

Component: Local Traffic Manager

Symptoms:
By default, BIG-IP database monitors (mssql, mysql, oracle, postgresql) are configured to keep a connection to the database server open between monitor probes to avoid the overhead of establishing the network connection to the database server for each query operation.
If this cached network connection times out or is dropped by the database server, it is marked as "stale" when the next probe occurs, and a new connection is made during the next scheduled monitor probe.
In the meantime, due to the lost connection, the monitored pool member may be marked DOWN until the next scheduled monitor probe. This is more likely to occur when a database monitor is used to monitor a GTM pool member instead of an LTM pool member, due to differences between how monitors are configured for GTM versus LTM.

Conditions:
This may occur under the following conditions:
-- GTM or LTM pool members are monitored by a database monitor, configured such that a single probe failure will mark the member DOWN. (Such configuration may be more common for GTM monitors.)
-- Either the database server times out or drops the connection for some reason, or no database monitor probes are sent to the database server within a 5 minute interval.

Impact:
GTM or LTM pool members monitored by a database monitor may be marked DOWN temporarily if the network connection to the database server is dropped or times out.

Workaround:
To work around this issue, perform one of the following actions:
-- Configure the database (mssql, mysql, oracle, postgresql) monitor with a "count" value of "1". This prevents the caching/reuse of network connections to the database server between probes. Thus there is no cached connection to time out/get dropped. However, the overhead of establishing the network connection to the database server will be incurred for each probe.
-- Configure the database monitor "interval" and "timeout" values (for an LTM monitor), or the "interval", "timeout", "probe-attempts", "probe-interval" and "probe-timeout" values (for a GTM monitor) such that multiple failed monitor probes are required before the monitored member is marked DOWN.

1024905-2 : GTM monitor times out if monitoring a virtual server with translation address

Component: Global Traffic Manager (DNS)

Symptoms:
GTM monitor flaps between UP and DOWN.

Conditions:
1. GTM configured with two type of IP addresses, one IPv4 with translated address and IPv6 without translated address, or the other way around.
2. The monitored resource is with the translated address of the other type. If step 1, IPV4 translated, then step with IPV4 translated address.

Impact:
Monitor flaps.

Workaround:
Configure both with translated address.

1024841-1 : SSL connection mirroring with ocsp connection failure on standby

Component: Local Traffic Manager

Symptoms:
SSL connection mirroring with ocsp stapling connection failure on standby, active completes handshake with delay.

Conditions:
SSL connection mirroring with ocsp stapling

Impact:
Handshake delay on active

Workaround:
Disable ocsp stapling or ssl connection mirroring

1024761-3 : HTTP adds Transfer-Encoding and terminating chunk to responses that cannot have a body

Component: Local Traffic Manager

Symptoms:
When rechunking is requested, HTTP responses with methods or status codes indicating that no body be present (like HEAD or 304) are receiving a Transfer-Encoding header and a terminating chunk. These responses should not have a body of any sort.

Conditions:
HTTP virtual server with rewrite profile present with the server that does HTTP caching.

Impact:
HTTP clients are unable to connect.

Workaround:
Remove the rewrite profile.

Possibly change http profile response-chunking from sustain to unchunk. This resolves the issue for the 304, but means that all other requests are changed from either chunking or unchunked with Content-Length header to unchunked without Content-Length and with "Connection: Close".

1024661-2 : SCTP forwarding flows based on VTAG for bigproto

Component: TMOS

Symptoms:
Sometimes SCTP traffic is unidirectionally dropped on one link after an SCTP link down occurs.

Conditions:
-- SCTP configured and BIG-IP is passing traffic
-- A link goes down

Impact:
Flow creation on the wrong TMM and some traffic is dropped.

Workaround:
Disable SCTP flow redirection.
tmm.sctp.redirect_packets == disable

1024621-3 : Re-establishing BFD session might take longer than expected.

Component: TMOS

Symptoms:
It might take a few minutes for a BFD session to come up. During this time you will notice session state transition multiple times between 'Admin Down' <-> 'Down'.

Conditions:
BFD peer trying to re-establish a session with BIG-IP, choosing ephemeral ports dis-aggregating to different TMMs.

Impact:
It might take a few minutes for a BFD session to come up.

Workaround:
Increasing Tx/Rx timers will minimize a chance of hitting the problem (For example 1000 TX/RX)

1024553-2 : GTM Pool member set to monitor type "none" results in big3d: timed out

Component: Global Traffic Manager (DNS)

Symptoms:
A pool member is marked down with a 'none' type monitor attached.

Conditions:
-- GTM pool member with a 'none' monitor configured

Impact:
Setting a pool member to have "none" monitor should result in a blue "checking" status but it may mark the pool member as down/unavailable.

Workaround:
NA.

1024461 : Tenant "tmsh show sys performance" does not show the correct traffic count

Component: TMOS

Symptoms:
The In-Out packet counts of
"tmrate /usr/share/examples/tmrate/conns.cfg" output and "tmsh show sys performance" output do not match

Conditions:
This occurs after passing network traffic through BIG-IP and then comparing the output of the commands.

Impact:
Traffic is reported inconsistently.

Workaround:
None

1024437-3 : Urldb index building fails to open index temp file

Component: Access Policy Manager

Symptoms:
The following error message shows up in /var/log/urldbmgr-trace.log:

THREAD: 2CDD4700; ERROR; WsFileOpen: Could not open file /var/urldb/staging/current/host.6417.byte.dat.003
THREAD: 2CDD4700; ERROR; WsIndexBuilderOpenFile: Failed to open index file /var/urldb/staging/current/host.6417.byte.dat.003.
THREAD: 2CDD4700; ERROR; WsHostIndexV7OpenFile: Failed to open Host index file /var/urldb/staging/current/host.6417.byte.dat.003.
THREAD: 2CDD4700; ERROR; WsHostIndexV7BuildProcessTempFiles: Failed to open host index temp file

As a result of this error, some requested URL category lookups return "Uncategorized".

Conditions:
The error can happen during index building after a new primary URLDB is downloaded.

Impact:
Some websites are categorized as "Uncategorized"

Workaround:
1) Stop urldbmgrd:
    bigstart stop urldb urldbmgrd

2) Delete databases:
    rm -rf /var/urldb/master/
    rm -rf /var/urldb/rtu/

3) Start urldbmgrd:
    bigstart start urldb urldbmgrd

4) Force database download:
   - tmsh command: "modify sys url-db download-schedule urldb download-now true", or
   - Admin GUI: Access >> Secure Web Gateway >> Database Settings >> Database Download >> Download Now

Databases will re-download and index.

1024301-2 : Missing required logs for "tmsh modify disk directory" command

Component: TMOS

Symptoms:
In case of failure of "tmsh modify disk directory" command, log which help to find reason for failure are getting missed.

Conditions:
Attempt to resize some volumes via the "tmsh modify disk directory" command

Impact:
Not able to find failure reason for resize of volumes.

Workaround:
Manually running the resize2fs command, can give the reason for failure.

1024269-2 : Forcing a file system check on the next system reboot does not check all filesystems.

Component: TMOS

Symptoms:
Forcing a file system check on the next system reboot, as described in K73827442, does not check all filesystems, but only the root (/) filesystem. This should not be the case and is a regression compared to previous BIG-IP versions.

After the reboot, you can inspect which filesystems were checked by running the following command:

journalctl --all --no-pager | grep -i fsck

Conditions:
A BIG-IP Administrator follows the procedure to force a file system check on the next system reboot.

Impact:
Some filesystems will not be fixed, and will continue to be corrupted. This can have a number of negative consequences. For instance, enlarging a filesystem (via the 'tmsh modify sys disk directory' command) can fail when a filesystem is dirty.

Workaround:
You can boot the system from the Maintenance Operating System (MOS), and perform all needed file system check operations from there. To boot the system into MOS, simply type 'mosreboot'. Note that once the system reboots into MOS, you will need video console access (for VE systems) or serial console access (for hardware systems) to be able to run fsck and the reboot the system into a regular BIG-IP boot location.

For more information on MOS, please refer to K14245.

1024241-2 : NULL TLS records from client to BIG-IP results in SSL session termination

Component: Local Traffic Manager

Symptoms:
After client completes TLS handshake with BIG-IP, when it sends a NULL TLS record, the client BIG-IP SSL connection is terminated.

Conditions:
This is reported on i7800 which has Intel QAT crypto device
The issue was not reported on Nitrox crypto based BIG-IP platforms. Issue is not seen when hardware crypto is disabled

Impact:
SSL connection termination is seen in TLS clients

Workaround:
Disable hardware crypto acceleration

1024225 : BIG-IP sends "Transfer-Encoding: chunked" to http/2 client after HEAD request

Component: Local Traffic Manager

Symptoms:
BIG-IP proxying http2 -> http1.1. In response to a HEAD request, pool member sends response with "Transfer-Encoding: chunked" header without chunked payload. BIG-IP sends "Transfer-Encoding: chunked" header back to http2 client which generates RST_STREAM, PROTOCOL_ERROR. According to RFC 7450 a proxy SHOULD remove such headers.

Conditions:
1) H2 <-> H1 is configured on virtual server
2) HEAD request over http2->http1.1 gateway getting chunked response.

Impact:
Http2 connection is reset

Workaround:
iRule to remove "Transfer-Encoding: Chunked" header from response.

1024029-3 : TMM may crash when processing traffic with per-session APM Access Policy

Component: Access Policy Manager

Symptoms:
Under certain conditions, TMM may crash while processing traffic with per-session APM Access Policy rules.

Conditions:
- APM provisioned
- Per-Request APM Access Policy enabled

Impact:
TMM crash leading to a failover event.

Workaround:
Remove all perflow vars like %{perflow.*} from per session APM policy

1023889-2 : HTTP/HTTPS protocol option in storage filter do not suppress WS/WSS server->client message

Component: Application Security Manager

Symptoms:
Protocol filter does not suppress WS/WSS server->client message.

Conditions:
- protocol filter is set to HTTP, HTTPS or HTTP/HTTPS
- response logging is set to For All Requests

Impact:
Remote log server receives unexpected messages

Workaround:
None

1023829 : Security->Policies in Virtual Server web page spins mcpd 100%, which later cores

Component: TMOS

Symptoms:
With a large number of VLANs (3000+) and virtual servers (2000+), the virtual server list page consumes excessive resources, eventually leading to a mcpd crash.

Conditions:
-- A huge number of VLANs and virtual servers exist.
-- The virtual server list page is displayed

Impact:
Page becomes inaccessible. Mcpd may crash. Traffic and control plane disrupted while mcpd restarts.

1023817-1 : Misleading "Enabling NAT64 for virtual server with security NAT policy configured is redundant/not required." warning

Component: TMOS

Symptoms:
While loading the configuration or specifying that NAT64 should be disabled on a virtual server, a warning is displayed or logged:

"Enabling NAT64 for virtual server with security NAT policy configured is redundant/not required."

This warning should only be displayed when a virtual server has both NAT64 enabled and a security NAT policy present, but may occur incorrectly even when NAT64 is disabled.

Conditions:
This warning may be incorrectly generated when all of these conditions are met:

-- a multi-bladed VIPRION
-- virtual servers in the configuration security NAT policies
-- receiving a ConfigSync from a peer, or running "tmsh load sys config" on the primary blade

Impact:
An erroneous warning is logged. It can be safely ignored.

1023461 : Multiple entries for CGNAT when PBA pools allocation is defined: for each request, a new entry is created

Component: Carrier-Grade NAT

Symptoms:
Two pools are configured, for example:
A: any destination
B: destination 8.8.8.8

1. Making connections and utilizing port block allocation (PBA) pool A works as expected; pools are correctly allocated and released as needed.
2. When a client has active PBA pool A allocated and requests pool B (because of connectivity to specific destination IP), then each subsequent connection request from that client results in new PBA pool B allocation.

Conditions:
Multiple rules are defined to configure PBA.

Impact:
If a request does not belong to the first pool then it will not belong any other, so the system creates a new pool.

Workaround:
None

1023365-1 : SSL server response could be dropped on immediate shutdown

Component: Local Traffic Manager

Symptoms:
SSL server response might be dropped if peer shutdown arrives before server response

Conditions:
Serverssl receives peer shutdown before server response

Impact:
Possible server response dropped

Workaround:
Delay connection shutdown until after server response is received

1022997-3 : TCP segments with an incorrect checksum are transmitted when the sock driver is used in AWS deployments (e.g., 1NIC)

Component: TMOS

Symptoms:
Deployments on AWS that use the sock driver (1NIC, for example) transmit packets with bad checksums when TSO/GSO is required. This causes significant delays as TMM re-segments the packets with correct checksums for retransmission, and may cause some operations to time out (such as configsyncs of large configurations).

Conditions:
-- BIG-IP Virtual Edition (VE) using the sock driver on AWS (all 1NIC deployments use this)
-- TSO/GSO required due to MTU limitations on one or more VLANs

Impact:
-- Delayed packets.
-- Possible timeouts for some operations (configsyncs, for example).

Workaround:
Modify (or create, if not present) the file /config/tmm_init.tcl on the affected BIG-IP systems, and add the following line to it:

ndal force_sw_tcs off 1d0f:ec20

Then restart TMM:

bigstart restart tmm

Note: Restarting TMM will cause a failover (or an outage if there is no high availability (HA) peer available).

1022973 : Sessiondb entries related to Oauth module not cleaned up in certain conditions

Component: Access Policy Manager

Symptoms:
When an OAuth AS is configured with a refresh lifetime of '0', this implies that the refresh token lifetime is infinite. This leads to all sessiondb entries related to this refresh token (including associated access token entries in sessiondb) to have infinite lifetime.

Conditions:
Refresh token lifetime is set to '0'.

Impact:
User will see consistent and persistent increase in memory consumption by TMM, potentially leading to out-of-memory situation.

Workaround:
Do not set refresh token lifetime to '0'.

1022877-2 : Ping missing from list of Types for OAuth Client

Component: TMOS

Symptoms:
Ping is missing from the 'Type' dropdown menu in Access ›› Federation : OAuth Client / Resource Server : OAuth Server ›› New OAuth Server Configuration...

Conditions:
-- Affected BIG-IP version
-- Add new Oauth server configuration from Access :: Federation : OAuth Client / Resource Server : OAuth Server :: New OAuth Server Configuration...

Impact:
Oauth client configuration for the server of type 'Ping' cannot be created via GUI

Workaround:
Use tmsh to create the configuration, e.g.:

tmsh create apm aaa oauth-server <server name> provider-name Ping dns-resolver-name <dns-resolver-name>

1022757-3 : Tmm core due to corrupt list of ike-sa instances for a connection

Component: TMOS

Symptoms:
Tmm generates a core when a corrupt list of ike-sa instances is processed.

Conditions:
Deletion of an expired ike-sa.

Impact:
Restart of tmm and re-negotiation of IPsec tunnels. Traffic disrupted while tmm restarts.

Workaround:
None

1022637-2 : A partition other than /Common may fail to save the configuration to disk

Component: TMOS

Symptoms:
A mismatch between the running-configuration (i.e. what is returned by "tmsh list ...") and the saved-configuration (i.e. what is stored in the flat configuration files) for a partition other than /Common, despite a "tmsh save config" operation was just performed (either by the user or as a result of a config-sync).

Conditions:
- One or more partitions other than /Common exist on the system.

- One or more of said partitions have no more configuration objects defined in them (i.e. are empty).

- A config save operation similar to "tmsh save sys config partitions { Common part1 [...] }" occurs, either manually initiated by an Administrator or as a result of a config-sync operation (in which case the device-group must be configured for manual synchronization).

Impact:
Should a BIG-IP Administrator notice the mismatch, the only immediate impact is confusion as to why the config save operation was not effective.

However, as the flat config files are now out-of-date, performing a config load operation on a unit in this state will resurrect old configuration objects that had been previously deleted.

On an Active unit, this may affect traffic handling. On a redundant pair, there is the risk that the resurrected objects may make it to the Active unit after a future config-sync operation.

Workaround:
If you notice the mismatch, you can resolve it by performing a config save operation for all partitions (i.e. "tmsh save sys config").

1022613-3 : Cannot modify Security "global-network" Logging Profile

Component: Advanced Firewall Manager

Symptoms:
When attempting to update the settings of the Security Logging profile, the window displays a modal dialog box titled "Saving Logging Profile" and never completes the update Action

Conditions:
"global-network" logging profile is selected for update

Impact:
You are unable to update the log settings for the "global-network" profile via UI

Workaround:
Use tmsh

1022493-2 : Slow file descriptor leak in urldbmgrd (sockets open over time)

Component: Access Policy Manager

Symptoms:
Unix domain sockets are opened and never closed in urldbmgrd. This is a very slow leak over time.

Conditions:
SWG or URLDB is provisioned.

Impact:
Urldbmgrd may hit a limit of open file descriptors, and may eventually core and restart. When urldbmgrd restarts, urldb also restarts. This may result in a momentary instant where URL categorization is not available.

Workaround:
Restarting urldbmgrd will clear the open file descriptors. Performing a forced restart during a time of no traffic will mitigate the risk of urldbmgrd restarting at an inconvenient time if there are too many sockets open.

"bigstart restart urldbmgrd" will restart the daemon.

1022453-2 : IPv6 fragments are dropped when packet filtering is enabled.

Component: Local Traffic Manager

Symptoms:
IPv6 fragments are dropped when packet filtering is enabled.

Conditions:
Packet filtering is enabled and the system is processing IPv6 fragments.

Impact:
Some or all of the fragments of an IPv6 packet are lost.

Workaround:
Disable packet filtering

1022421-3 : Pendsec utility incorrectly starts on i2x00/i4x00 platform with NON WD disk

Component: TMOS

Symptoms:
The pendsec utility recognizes that the disk is a HDD and attempts to run a smart check against it but it does not recognize or support the disk type that is in the system and therefore you will see log messages like this in /var/log/messages when the cron job attempts to run:

May 14 15:34:04 fqdn.device.com notice pendsect[11461]: skipping drive --
May 14 15:34:04 fqdn.device.com notice pendsect[11461]: No known drives detected for pending sector check. Exiting

Conditions:
- i2x00 or i4x00 platform with the Seagate brand HDD

Impact:
Cosmetic

Workaround:
You can mitigate the cosmetic log issue by suppressing the pendsec utility.

Login to BIG-IP using SSH

Navigate to /etc/cron.daily
# cd /etc/cron.daily

Create new directory called suppress
# mkdir suppress

Move the pendsect cron job to suppres
# mv pendsect suppress

1022417-2 : Ike stops with error ikev2_send_request: [WINDOW] full window

Component: TMOS

Symptoms:
IKE SAs will be lost.

Conditions:
A failover occurs while IKE is sending DPD to the peer, and the reply is received by the newly active BIG-IP.

Multiple failovers can increase the likelihood that this occurs.

Impact:
IKE SAs may be deleted and there will be traffic loss.

Workaround:
Increase in DPD interval to reduce the probability of occurrence of the issue.

1022297-3 : In BIG-IP GUI using "Select All" with filters is not working appropriately for policies

Component: TMOS

Symptoms:
In BIG-IP GUI using "Select All" with filters is not working appropriately for policies. When you attempt to delete policies after using filtering, all policies are deleted.

Conditions:
In BIG-IP GUI policies page, apply filter and using select all, for an action is selecting all objects and filter not applied.

Impact:
All policies objects are affected for an action, and filter is not applied

1022213-3 : DDOS: BDOS: Warning messages related to high availability (HA) watchdog seen on system bring up

Component: Advanced Firewall Manager

Symptoms:
When the BDoS log message level is set to "Warning", some high availability (HA) watchdog messages are logged:

info bdosd[14184]: BDoS: May 27 03:51:40|loadState|460|HA Watchdog was not found <DNS_CLASS_L>

Conditions:
-- DDoS is used.
-- Dynamic signature is enabled on vectors
-- Default BDoS log level is changed to Warning.

Impact:
Unwanted log messages displayed. They can be safely ignored.

1021925-3 : During bootup AWS BIG-IP endpoint was not licensed when custom gateway configured over management interface

Component: TMOS

Symptoms:
AWS-based BIG-IP instance with a static IP assigned to the mgmt interface and a custom gateway configured, the box fails to load its license during startup.

Conditions:
BIG-IP configured with static IP address and customize gateway for default route

Impact:
BIG-IP fails to load license.

Workaround:
Once BIG-IP boots up, execute reloadlic command which installs the license

1021873-2 : TMM crash in IPIP tunnel creation with a pool route

Component: TMOS

Symptoms:
In rare circumstances, the Traffic Management Microkernel (TMM) process may produce a core file in the /shared/core directory while processing traffic.

Conditions:
1)Virtual server attached with an ipip encapsulation enabled pool
2)Multiple paths to pool members
(pool route to pool member)

Impact:
Traffic disrupted while tmm restarts.

1021837-2 : When a virtual server has an inline service profile configured, connections will be reset with cause "No server selected"

Component: Local Traffic Manager

Symptoms:
Connections are reset with "No server selected" cause.

Conditions:
-- An inline service profile ("ltm profile service") attached to a normal virtual server

Impact:
TCP connections are reset

Workaround:
Delete and recreate the virtual server without the inline service profile associated with it.

Simply removing the service profile from the virtual server is not sufficient.

1021737 : NAT policy rules are matched regardless of route domains

Component: Advanced Firewall Manager

Symptoms:
Only the first policy rule is processed, as route domain indices not respected.

Conditions:
-- Two custom route domains, each with a virtual server configured in them
-- A policy with two rules (one per route domain ID) is assigned to both the virtual servers

Impact:
Unable to segregate client traffic, as route domain indices are not respected in NAT policy rules

Workaround:
Use a separate policy on the wildcard virtual server for each route domain.

1021637-2 : In some cases BD enforces CSRF on all URLs, ignoring CSRF URLs

Component: Application Security Manager

Symptoms:
CSRF is sometimes enforced on URLs that do not match the CSRF URLs list

Conditions:
ASM policy with CSRF settings

Impact:
URLs that do not match the CSRF URLs list can be blocked due to CSRF violation.

Workaround:
None

1021633 : DDoS: ICMPv6 packets not reported properly by Virtual DDoS

Component: Advanced Firewall Manager

Symptoms:
Hardware does not support ICMPv6 protocol by virtual server DOS (Dos profile attached to virtual server).

Conditions:
-- BIG-IP hardware platform
-- Virtual server configured with a DoS profile
-- ICMPv6 traffic reaches the virtual server

Impact:
ICMPv6 Packets will be mitigated as per configuration but will not be reported in stats table

Workaround:
None

1021485-2 : VDI desktops and apps freeze with Vmware and Citrix intermittently

Component: Access Policy Manager

Symptoms:
VMware VDI:
Blank screen is seen while opening remote desktop when VDI is configured with VMware.

Citrix:
Desktop freezes immediately after opening remote desktop when VDI is configured with Citrix.

Conditions:
VMware VDI:
-- VDI is configured with VMware
-- Desktop or App is launched using native client from Webtop.
wait till 2X inactivity timeout if inactivity timeout

Citrix:
-- VDI is configured with Citrix
-- Desktop or App is launched using native client from Webtop.
-- Configure Inactivity timeout to 0.

Impact:
VDI desktops freeze while opening or immediately after opening.
The following error is seen in APM logs:
"Session stats update failed: ERR_NOT_FOUND"

Workaround:
No

1021417-3 : Modifying GTM pool members with replace-all-with results in pool members with order 0

Component: Global Traffic Manager (DNS)

Symptoms:
GTMpool has multiple members with order 0.

Conditions:
There is an overlap for the pool members for the command replace-all-with and the pool members to be replaced.

Impact:
Multiple pool members have the same order.

Workaround:
Perform this procedure:
1. Delete all pool members from the GTM pool.
2. Use replace-all-with.

1021109-3 : The cmp-hash VLAN setting does not apply to trunked interfaces.

Component: TMOS

Symptoms:
-- CPU usage is increased.
-- Throughput is reduced.
-- Packet redirections occur (visible when using 'tmctl -d blade tmm/flow_redir_stats')

Conditions:
-- Traffic is received on trunked interfaces.
-- The cmp-hash setting has a non-default value.
-- The platform is BIG-IP Virtual Edition (VE).

Impact:
Performance is reduced. Output from 'tmctl -d blade tmm/flow_redir_stats' shows redirections.

Workaround:
-- Use the default cmp-hash setting.
-- Do not trunk interfaces.

1021061-3 : Config fails to load for large config on platform with Platform FIPS license enabled

Component: Global Traffic Manager (DNS)

Symptoms:
Config fails to load.

Conditions:
-- Platforms with Platform FIPS license enabled.
-- There are several ways to encounter this. One is with a large GTM (DNS) configuration that requires extending the gtmd stats file.

Impact:
Config file fails to load. For the gtmd configuration, gtmd repeatedly logs error messages similar to:

err gtmd[14954]: 011af002:3: TMSTAT error 'Invalid argument' creating row '/Common/vs_45_53' in table 'gtm_vs_stat'

For merged daemon, reports messages similar to:
err merged[9166]: 011b0900:3: TMSTAT error tmstat_row_create: Invalid argument.

Workaround:
None

1020789-3 : An i11800 cannot deploy a four core vCMP guest if the remaining cores are in use

Component: TMOS

Symptoms:
When trying to deploy a four or more core guest on an i11800 vCMP host where all of the other cores are in use, the following error message may be seen:

err mcpd[<pid>]: 0107131f:3: Could not allocate vCMP guest (<guest_name>) because fragmented resources

--------------------------------------------------
one more similar issue has raised for 8 guests allocation failure

When trying to deploy a eight core guest on an i11800 vCMP host where four 2 cores are in use, the following error message may be seen:

0107131f:3: Could not allocate vCMP guest (guest-8cores-A) because fragmented resources

Conditions:
VCMP provisioned on an i11800 and 28 cores are in use.

Attempts to deploy a four core guest will fail

--------------------------------------------------

VCMP provisioned on an i11800 and 8 cores are in use.

Attempts to deploy a eight core guest will fail

Because interfaces are not continues

Impact:
All of the available cores cannot be used.

Workaround:
It is possible you may be able to work around this by deploying the largest guests first, then any remaining 2 core guests.

There is currently no other fix.

1020645-1 : When HTTP CONNECT is sent, iRule event HTTP_RESPONSE_RELEASE is not triggered

Component: Local Traffic Manager

Symptoms:
In an explicit proxy configuration when an HTTP request is sent to an HTTPS destination server via proxy, the HTTP CONNECT method is sent, but the iRule event HTTP_RESPONSE_RELEASE is not fired.

Conditions:
- Simple HTTP explicit proxy virtual server
- An HTTP request from the client is sent to an 'https://' destination server

Impact:
iRule event HTTP_RESPONSE_RELEASE does not get triggered.

Workaround:
None

1020561-1 : Session memory increases over time due to db_access_set_accessinfo can leak sresult key/data in error case

Component: Access Policy Manager

Symptoms:
Session memory is growing over time. memory_usage_stat indicates 'session' is growing.

Conditions:
Db_access_set_accessinfo is hitting the error case

Impact:
Memory will leak in tmm daemons. This affects all modules that use tmm.

Workaround:
Restart the tmms periodically when the memory grows

1020377-2 : Missing IKEv2 listeners can send IKE packets to the IKEv1 racoon daemon

Component: TMOS

Symptoms:
If an IKEv2 tunnel terminates with an error condition, afterward it is possible for IKE packets to be received by the IKEv1 racoon daemon, which is listening to local host (i.e 127.0.0.1) on ports 500 and 4500.

Conditions:
To get the problem to occur, you may need these details:

-- an IKEv2 config where traffic selector narrowing happens
-- termination of an IKEv2 tunnel with an error condition
-- some other BIG-IP service using the same local self IP

Packets can reach the IKEv1 racoon daemon only when some BIG-IP service uses bigself as the proxy, which forwards packets to localhost (127.0.0.1) with the same port number. So even if no IKEv1 config is present for a local self IP, if some other BIG-IP service also uses bigself as a proxy, this can forward IKE packets to localhost as well.

Impact:
The IKEv2 tunnel does not get renegotiated, because IKE packets reach the IKEv1 daemon, which ignores them, because the proper listener to handle IKEv2 is missing. As a result, tunnel service is interrupted.

Workaround:
Deleting and re-adding the problematic ike-peer and traffic-selector should bring back IPsec support for that tunnel.

If the initiating and responding sides of the tunnel have identical traffic-selector proposals, then narrowing should not happen, and this would also prevent the problem in the first place.

1020349-2 : APM daemon may crash if CRLDP agent cannot find a certificate to validate CRL

Component: Access Policy Manager

Symptoms:
APM daemon (apmd) crashes and a coredump is created at '/var/core/'

Conditions:
-- Configure On-Demand Cert Auth with any Auth Mode
-- 'Request/Require'
-- Configure AAA CRLDP

Impact:
All CRLDP based authentications fail.

Workaround:
None

1020337-1 : DNS msg_ObjType can cause buffer overrun due to lack of NUL terminator

Component: Global Traffic Manager (DNS)

Symptoms:
Tmm cores with umem debug enabled.

Conditions:
A string operation is performed against DNS resource records (RRs) from DNSMSG::section in an iRule.

Impact:
Tmm memory corruption. In some situations, tmm might crash. Traffic disrupted while tmm restarts.

Workaround:
Do not use string operations against DNS RRs returned from DNSMSG::section.

1020277-2 : Mcpd may run out of memory when build image is missing★

Component: TMOS

Symptoms:
After installing a new blade, if the BIG-IP does not have the appropriate images to install all volumes onto the new blade, it can get stuck waiting to install. This may cause mcpd to eventually run out of memory.

Running "tmsh show sys software" shows a message similar to this for a prolonged period of time:

HD1.2 3 BIG-IP 12.1.3.5 0.0.10 no waiting for product image (BIG-IP 12.1.3)

Conditions:
-- Installing a new blade into a chassis-based system.
-- Missing BIG-IP image(s) necessary to update all volumes on the new blade.

Impact:
Mcpd eventually runs out of memory and cores.

Workaround:
Either delete the affected volume if it is no longer necessary, or copy the appropriate BIG-IP image to /shared/images.

1020149-2 : Bot Defense does not support iOS's WKWebView framework

Component: Application Security Manager

Symptoms:
When using the Bot Defense Profile, mobile apps which use iOS's WKWebView framework may get blocked from accessing the website.

Conditions:
-- Using the Bot Defense Profile
-- Mobile apps which use iOS's WKWebView framework try to access the website

Impact:
Mobile apps which use iOS's WKWebView framework may get blocked from accessing the website.

Workaround:
None

1020129-1 : Turboflex page in GUI reports 'profile.Features is undefined' error★

Component: TMOS

Symptoms:
The System :: Resource Provisioning : TurboFlex page is unusable, and the BIG-IP GUI reports an error:

An error occurred: profile.Features is undefined.

Conditions:
-- BIG-IP iSeries appliance
-- Upgrade to:
--- v15.1.3 or later within v15.1.x
--- v16.0.1.2 or later within v16.0.x
--- v16.1.0 or later
-- Accessing the System :: Resource Provisioning : TurboFlex page in the BIG-IP GUI

Impact:
Unable to manage TurboFlex profile via the BIG-IP GUI.

Workaround:
Use tmsh or iControl REST to manage TurboFlex profile configuration.

1020109-2 : Subnet mask property of virtual addresses not displayed in management GUI

Component: TMOS

Symptoms:
You cannot determine the subnet mask for a displayed virtual address using only the BIG-IP management GUI.

Conditions:
-- A virtual address (automatically created by any virtual server) exists in the configuration.
-- Using the management GUI.

Impact:
Potential difficulty in troubleshooting and verifying config due to having to use other methods (accessing the CLI) to check a virtual address's netmask.

Workaround:
Use tmsh to determine the subnet mask.

1020089-2 : MCP validation should prevent defining multiple virtual servers with the same virtual address but with different subnet masks

Component: TMOS

Symptoms:
Multiple virtual servers with the same virtual address but with different subnet masks are allowed.

Conditions:
Creation of multiple virtual servers with the same virtual address but with different subnet masks.

Impact:
Latest virtual server instantiation implicitly and silently modifies the subnet mask of the virtual address, making the system not behave as the user thinks or intended.

Workaround:
None.

1020069-2 : Equinix SmartKey HSM is not working with nethsm-partition 'fortanix'

Component: Local Traffic Manager

Symptoms:
Setting up the Equinix SmartKey HSM with nethsm-partition 'fortanix' (or anything other than 'auto') pkcs11d logs an error:

err pkcs11d[21535]: 01680040:3: netHSM: Failed to find partition with label 'fortanix' on the netHSM.

Conditions:
Configuring a nethsm-partition other than 'auto'.

Impact:
BIG-IP does not connect to the HSM and SSL traffic is disrupted.

Workaround:
Use the nethsm-partition 'auto'
tmsh create sys crypto fips nethsm-partition 'auto'

1020061-1 : Nested address lists can increase configuration load time

Component: Advanced Firewall Manager

Symptoms:
Whenever there are a number of nested address lists configured, the 'load sys config' command takes a long time to complete.

Conditions:
-- Several nested Address Lists are configured.
-- The 'load sys config' command is run.

Impact:
Upgrading (load sys config) takes a lot of time of time to complete, which sometimes causes Packet Correlation Classification Daemon (pccd) to fail.

If pccd fails, the system is unable to detect and compile firewall configuration changes, meaning that changes made to the firewall configuration are not enforced.

Note: The firewall configuration that was running before pccd goes down continues to be enforced; only changes are not enforced.

Workaround:
None

1020049 : iControl REST 401 error caused by pam-authenticator failure

Component: TMOS

Symptoms:
F5 OpenStack LBaaSv2 driver code can produce many iControl REST API calls against a BIG-IP VE device. Some of those API calls get 401 responses and so, the whole configuration procedure fails.

Conditions:
iControl authentication code executes a pam-authenticator command to verify admin password, and the pam-authenticator command often fails, if we run several processes of it at the same time

Impact:
iControl API returns 401 error, even if the admin password is correct.

1020041-2 : "Can't process event 16, err: ERR_NOT_FOUND" seen in tmm logs

Component: Policy Enforcement Manager

Symptoms:
The following message may be logged to /var/log/tmm*

Can't process event 16, err: ERR_NOT_FOUND

Conditions:
Applying a PEM policy to an existing session that already has that policy (eg, through an irule using 'PEM::subscriber config policy referential set xxxx'

Impact:
Since the PEM policy is already applied to the session, the failure message is essentially cosmetic, but it can cause the tmm logs to grow in size if this is happening frequently.

Workaround:
--

1019793 : Image2disk does not work on F5OS BIG-IP tenant.★

Component: TMOS

Symptoms:
Image2disk fails to recognize the correct disk to install and installation fails.

Conditions:
This occurs with BIG-IP tenants that are running in F5OS partitions.

Impact:
Installation fails.

Workaround:
None

1019749-1 : Enabling DHCP for management should not be allowed on vCMP guest

Component: TMOS

Symptoms:
Options to enable DHCP for the management interface are available on vCMP guests.

Conditions:
-- BIG-IP vCMP guest running on an appliance

Impact:
VCMP guest can be configured with options that are incompatible with VCMP operation.

This might result in a loss of management IP in the guest after a reboot

Workaround:
Do not attempt to DHCP on the management interface of a vCMP guest.

1019709-2 : Modifying mgmt-dhcp options should not be allowed on VCMP guest

Component: TMOS

Symptoms:
Option to modify mgmt-dhcp to dhcpv4 or dhcpv6 is available on VCMP guest.

Conditions:
This is encountered with the following tmsh command

modify sys global-settings mgmt-dhcp
Values:
dhcpv4 dhcpv6 disabled enabled

Impact:
VCMP guest can be configured with options that are incompatible with VCMP operation.

This might result in a loss of management IP in the guest after a reboot

Workaround:
N/A

1019641-1 : SCTP INIT_ACK not forwarded

Component: Local Traffic Manager

Symptoms:
After SCTP link down/up (not physical IF link down up), SCTP session can't be established.

Conditions:
-- CMP forwarding enabled (source-port preserve-strict)
-- The BIG-IP system is encountering heavy traffic load
-- A connection is deleted from the connection table

Impact:
Flow state can become out of sync between TMMs

Workaround:
Once the problem occurs, execute "tmsh delete sys connection", and the SCTP session will be re-established.

1019613-3 : Unknown subscriber in PBA deployment may cause CPU spike

Component: Carrier-Grade NAT

Symptoms:
in PBA deployment, a CPU spike may be observed if the subscriber-id log is enabled and the subscriber-id is unknown.

Conditions:
-- PBA configuration
-- Address translation persistent is enabled
-- Subscriber-id log is enabled
-- There is an unknown subscriber

Impact:
Overall system capacity reduces.

Workaround:
Disable subscriber-id logging.

1019557-2 : Bdosd does not create /var/bdosd/*.json

Component: Advanced Firewall Manager

Symptoms:
JSON files for historical data are not created for each virtual server in /var/bdosd.

BDOS for DDoS works on current data in memory but cannot to depend on the historical data for all virtual servers

Conditions:
BDOS is configured for any virtual server

Impact:
Custom signature or BDDoS-generated signature for the virtual server does not work correctly.

Workaround:
None

1019429-3 : CMP Forwarded flows do not get syncache counter decremented when only server-side is PVA accelerated

Component: TMOS

Symptoms:
Virtuals with CMP forwarded flows and PVA acceleration may see a higher than expected syncache counter which can lead to permanent syncookie activation.

Also, under certain conditions the internal listeners used for config-sync may have syncookies activated. Logs will show the syncookie counter increasing after every activation.

bigip1 warning tmm1[18356]: 01010038:4: Syncookie counter 9830 exceeded vip threshold 2496 for virtual = 192.168.1.1:4353
bigip1 warning tmm1[18356]: 01010038:4: Syncookie counter 9834 exceeded vip threshold 2497 for virtual = 192.168.1.1:4353

Conditions:
-- Virtual servers with CMP forwarded flows - commonly occurring when the FTP profile is in use.
-- A platform with PVA acceleration enabled.
-- Only the server-side flow of a connection is offloaded to hardware.

Impact:
Elevated syncache_curr, epva_connstat.embryonic_hw_conns, epva_connstat, embryonic_hw_tcp_conns stas. Improper syncooke activation. Syncookie activation on the config-sync listener may cause config-sync to fail.

Workaround:
Remove the ftp profile or disable PVA acceleration:

modify sys db pva.acceleration value none

1019357-1 : Active fails to resend ipsec ikev2_message_id_sync if no response received

Component: TMOS

Symptoms:
In high availability (HA) setup, after failover, the newly active BIG-IP device, will send ikev2_message_id_sync messages to the other device.

If the BIG-IP device did not receive a response, it has to retransmit the packet. Some of the IKE tunnels are trying to retransmitting the packet, but its not going out of BIG-IP due to wrong state of relation between IKE tunnel and connection flow.

After 5 retries, it marks the peer as down, and the IKE tunnel is deleted.

Conditions:
-- High availability (HA) environment
-- IKE tunnels configured
-- A failover occurs

Impact:
Traffic loss.

Workaround:
None

1019285-3 : Systemd hangs and is unresponsive

Component: TMOS

Symptoms:
When memory is exhausted on the system and systemd tries to fork to start or stop a service, systemd fails and enters "freeze" mode.

Conditions:
Following log messages can be seen in the daemon.log log file:

err systemd[1]: Failed to fork: Cannot allocate memory
crit systemd[1]: Assertion 'pid >= 1' failed at src/core/unit.c:1997, function unit_watch_pid(). Aborting.
emerg systemd[1]: Caught <ABRT>, cannot fork for core dump: Cannot allocate memory
emerg systemd[1]: Freezing execution.

Impact:
Systemd does not provide service anymore.

Workaround:
Reboot the system to restore the systemd services.

1019261-2 : In-TMM HTTPS monitor with SSL Profile set to None does not use serverssl profile.

Component: Local Traffic Manager

Symptoms:
HTTPS monitors with SSL profile set to None (default) will not use the default ServerSSL profile of "serverssl" when In-TMM monitoring is enabled. Instead, another internal ServerSSL profile is used which has different values from "serverssl".

Conditions:
-- In-TMM monitoring is enabled
-- HTTPS monitor(s) with SSL profile field is set to the default of "None"

Impact:
The TLS settings for the HTTPS monitor monitor probes will not match those of the ServerSSL "serverssl" profile and may cause unexpected behavior such as utilizing TLS 1.3 (disabled by default in the "serverssl" profile) or random session IDs.

Workaround:
Specify a ServerSSL profile in every HTTPS monitor when using In-TMM monitoring.

Attaching the profile "serverssl" will result in the same behavior that SSL Profile "none" should provide, given that the "serverssl" profile should be the default.

1019129-3 : Changing syslog remote port requires syslog-ng restart to take effect

Component: TMOS

Symptoms:
Modified remote port in syslog configuration takes effect only after restart of the syslog-ng.

Conditions:
-- Configure the remote syslogs and allow some time to pass.
-- Change the local IP or remote port in syslog config.

Impact:
Change does not occur until you reboot or restart syslog-ng.

Workaround:
To cause the change to occur, restart syslog-ng:
bigstart restart syslog-ng

1019085-1 : Network virtual-addresses fail to retain the "icmp-echo enabled" property following an upgrade or reload of the configuration from file.★

Component: TMOS

Symptoms:
Network virtual-addresses default to "arp disabled" and "icmp-echo disabled". However, a BIG-IP Administrator can change these settings to "enabled", if required.

Either following a software upgrade or a reload of the configuration from file, network virtual-addresses that had previously been set to "icmp-echo enabled" revert to the default of "icmp-echo disabled".

Conditions:
- One or more network virtual-addresses configured with "icmp-echo enabled".

- A software upgrade or reload of the configuration from file occurs (for example, taking and restoring a UCS archive, removing the mcpd binary database and reloading the config, etc.).

Impact:
Traffic failures can occur as a result of the affected network virtual-addresses not being presented to the surrounding network as originally intended by the BIG-IP Administrator.

Workaround:
Manually configure the affected virtual-addresses to "icmp-echo enabled" again. This workaround is not permanent, and the issue will occur again in the future given the right conditions.

1018877-1 : Subsession variable values mixing between sessions

Component: Access Policy Manager

Symptoms:
Subsession variable lookup internally assumes that a complete session DB lookup name (Session ID + Subsession key) is used. However, when using the lookup table, only the subsession key is passed in.

Conditions:
Subsession variables are referenced in the Per-Request Policy outside of the Subsession without the Session ID.

Impact:
A Per-Request Policy execution may get the value of the subsession variable from a different APM session.

Workaround:
Add the session ID to the reference to the subsession variables used in Per-Request Policies.

1018765-2 : Changing the sshd port breaks some BIG-IP utilities on a multi-bladed system

Component: Local Traffic Manager

Symptoms:
After using "sys sshd port" to change the default port for sshd, some utilities may no longer work properly on the BIG-IP, such as:

"tmsh reboot slot ..."

or

qkview

or

any command using clsh

or

ssh slot<slot number>

Conditions:
-- Chassis system with multiple blades.
-- Default sshd port was modified.

Impact:
Unable to run commands on secondary blades.

Workaround:
-- Reconfigure SSHD to run on the default port, 22.

or

-- Specify an explicit port when using ssh and log in to each blade to run the desired commands, e.g. "ssh -p 40222 slot2"

1018673-2 : Virtual Edition systems replicate host traffic to all TMMs when a multicast MAC address is the traffic's nexthop

Component: TMOS

Symptoms:
When BIG-IP Virtual Edition receives a host packet that has a multicast MAC address as its nexthop, it will disaggregate this by forwarding it to all TMMs. This results in all TMMs egressing the packet.

Conditions:
-- BIG-IP Virtual Edition
-- A route is configured to a multicast MAC address
-- Host traffic (e.g. non-TMM monitors, ping, etc.) is routed to the multicast MAC address

Impact:
Extraneous packets are egressed from the BIG-IP.

Workaround:
Partial workaround for the case of monitors: use in-TMM monitors where possible. Otherwise, there is no workaround for this.

1018613-3 : Modify wideip pools with replace-all-with results pools with same order 0

Component: Global Traffic Manager (DNS)

Symptoms:
Multiple wideip pools have the order 0.

Conditions:
There are overlap for the pools for command replace-all-with and the pools to be replaced.

Impact:
iQuery flapping between GTMs.

Workaround:
First delete all pools from the wideip and then use replace-all-with.

1018577-3 : SASP monitor does not mark pool member with same IP Address but different Port from another pool member

Component: Local Traffic Manager

Symptoms:
When the LTM SASP monitor is applied to a pool with multiple members having the same IP Address but different Ports, only one of the pool members with the duplicated IP Address will be monitored (marked UP or DOWN as appropriate). Other pool members sharing the same IP Address will remain in a 'checking' state.

Conditions:
This occurs when using the SASP monitor in a pool with multiple members having the same IP Address but different Ports.
For example:
ltm pool sasp_test_pool {
    members {
        sasp_1:80 {
            address 10.10.10.1
        }
        sasp_1:8080 {
            address 10.10.10.1
        }
        sasp_2:80 {
            address 10.10.10.2
        }
        sasp_2:8080 {
            address 10.10.10.2
        }
    }
    monitor sasp_test
}

In this case, only one pool member with a given IP Address will be correctly monitored by the sasp monitor.
Any additional pool members with the same IP Address but different port will not be monitored by the SASP monitor and will remain in a 'checking' state.

Impact:
Not all pool members may be effectively/accurately monitored by the SASP monitor.

1018309-3 : Loading config file with imish removes the last character

Component: TMOS

Symptoms:
While loading a configuration from the file with IMISH ('imish -f <f_name>'),truncating the last line.

printf 'log file /var/log/zebos.log1' >/shared/tmp/new.cfg
Running imish -r 0 -f /shared/tmp/new.cfg have the last character missing like below:
log file /var/log/zebos.log

Conditions:
Loading a config with 'imish -f <f_name>' commands.

Note: This command is used with the bigip_imish_config Ansible module.

Impact:
Configuration commands cannot be created properly.

Workaround:
For CLI, use extra control char at the end or \n.

1018285-1 : MRF DIAMETER to select automatic removal of a persistence entry on completion of a transaction

Component: Service Provider

Symptoms:
MRF DIAMETER is not DIAMETER-application aware. It does not have application-specific business logic. When creating a DIAMETER solution, BIG-IP operators often need to write iRule scripts that remove a session persistence entry at the end of a transaction.

Conditions:
Some applications require removal of the persistence entry upon successful and unsuccessful completion of a transaction.

root@(bigip1)(cfg-sync Standalone)(Active)(/Common)(tmos)# list ltm rule log_dia_error
ltm rule log_dia_error {
when DIAMETER_INGRESS {
set cmd_code [DIAMETER::command]
if { $cmd_code == 272 } {
    set cc_req_type [DIAMETER::avp data get 416 integer32]
    if {[DIAMETER::is_response] && $cc_req_type == 3 } {
       log local0. "Persistence record delete-on-any"
       DIAMETER::persist delete-on-any
    }
}
}

Impact:
iRule script is required.

1018165-2 : GUI display of DHCPv6 profile not correct for virtual server in non-default route-domain

Component: TMOS

Symptoms:
A virtual server created in a non-default route-domain with a DHCPv6 profile shows as using a DHCPv4 profile 'None' in the GUI.

Conditions:
-- Virtual server using a DHCPv6 profile.
-- Virtual server must be in a non-default route-domain.
-- Using the GUI to view the virtual server.

Impact:
Incorrect view of the configuration.

Workaround:
None

1017897-2 : Self IP address creation fails with 'ioctl failed: No such device'

Component: TMOS

Symptoms:
Creating a self IP address after a route-domain using TMSH reports an error:

01070712:3: Cannot get device index for Backend in rd2 - ioctl failed: No such device.

Conditions:
Using tmsh, create a Trunk, create a VLAN on the trunk, create a route-domain, then create a self IP address.

Impact:
Self IP address creation fails after route-domain creation.
Unable to run declarative-onboarding declaration.

Workaround:
Add a short delay after modifying/creating the route domain before creating the self IP address.

Note: Self IP address should be created after route-domain creation.

1017885-4 : Wildcard server-name does not match multiple labels in FQDN

Component: Local Traffic Manager

Symptoms:
Wildcard server-name does not match multiple labels in FQDN
for example: *.domain.com matches a.domain.com or a.bc.domain.com, but it does not match domain.com but here multiple labels(a.bc.domain.com) are not matched to the wildcard (*.domain.com).

Conditions:
Client-ssl is configured with a wildcard server-name with the virtual server configured with multiple client-ssl profiles. The correct ssl profile (and therefore certificate) is chosen based on SNI from the client Hello.

Impact:
Generates default profile/certificate when trying to match with multiple labels using wildcard, when it should generate correct certificate matched to the wildcard in server name.

Workaround:
N/A

1017857-3 : Restore of UCS leads to incorrect UID on authorized_keys★

Component: TMOS

Symptoms:
After restoring a UCS from a different BIG-IP device, the admin user is unable to log in via SSH using SSH public key authentication.

Conditions:
-- Create a UCS on one BIG-IP system where a UCS archive has been restored in the past (including by an upgrade)
-- Import the UCS to a different BIG-IP system and load it

Impact:
You are unable to log in as the admin user via SSH using key-based authentication.
NOTE: Password authentication works without any issues.

Workaround:
Change the owner of /home/admin/.ssh/authorized_keys to 'root', by running the following command:

chown root /home/admin/.ssh/authorized_keys

This command can also be run via iControl REST using the /mgmt/tm/util/bash endpoint.

1017801-3 : Internal listeners (cgc, ftp data, etc) all share the same listener_key stats

Component: Local Traffic Manager

Symptoms:
Internal stats are not accurate because they are shared across multiple listener types

Conditions:
This can occur when multiple virtual server types are in use and passing traffic.

Impact:
Internal listener stats are not accurate.

1017721-3 : WebSocket does not close cleanly when SSL enabled.

Component: Local Traffic Manager

Symptoms:
After sending a close frame to the WebSocket server, the WebSocket client receives 1006 response.

Conditions:
Virtual server with the following profiles:
-- WebSocket
-- HTTP over SSL (at least server side SSL)

and connection closure is initiated by the client.

Impact:
Client side applications experience errors in the form of WebSocket abnormally closing connections with error code 1006.

Workaround:
Avoid using SSL on WebSocket server context.

1017557-3 : ASM Plugin Abort reset for chunked response without proper terminating 0 chunk followed by FIN

Component: Application Security Manager

Symptoms:
ASM BD sends a reset back to the client when the backend server sends a response without proper terminating 0 chunk followed by FIN.

Conditions:
- ASM provisioned
- ASM policy attached to a virtual server
- Backed server sends a bad chunked response

Impact:
Valid requests can be reset.

Workaround:
Any one of the following workarounds can be applied.

-- Fix backed server behavior.
-- Fix bad response using iRule, appending proper terminating 0 chunk
-- Change ASM internal /usr/share/ts/bin/add_del_internal update bypass_upon_load 1

1017513-3 : Config sync fails with error Invalid monitor rule instance identifier

Component: Local Traffic Manager

Symptoms:
If you remove or attach a different monitor to an fqdn pool, then perform a full config-sync, an error occurs:

Load failed from /Common/bigip1 01070712:3: Caught configuration exception (0), Invalid monitor rule instance identifier: 58.

Conditions:
-- BIG-IP device is configured with fqdn nodes/pools with monitors.
-- Modify an fqdn pool to remove or attach a different monitor.
-- Run the command: run cm config-sync to-group Failover
-- Perform a full config-sync.

Impact:
Sync to the peer device(s) fails.

Workaround:
Use incremental-sync.

1017421-3 : SASP Monitor does not log significant error conditions at default logging level

Component: Local Traffic Manager

Symptoms:
Most error conditions encountered by the SASP monitor are not logged at the default logging level ("error"). Most of the meaningful error conditions, including Exceptions, are logged at "info" or "debug" levels. Obtaining details to diagnose the SASP monitor issues requires reconfiguring sys db saspd.loglevel for a value of "info" or "debug".

Conditions:
-- Using the SASP monitor to monitor LTM pool members
-- Leaving the saspd.loglevel system DB variable configured at the default value of "error"

Impact:
Errors which occur intermittently or once while monitoring LTM pool members using the SASP monitor may not be diagnosable.

Workaround:
Configure the saspd.loglevel system DB variable with a value of "info" (for normal operations) or "debug" (if problems are occurring repeatedly).

1017261-5 : Configuraton update triggers from MCP to ASM are ignored

Component: Application Security Manager

Symptoms:
If a stale/incorrect but running PID is present in /var/ts/var/install/ucs_install.pid, then ASMConfig will think it is in the middle of a UCS or Sync load event and ignore updates from MCP.

Conditions:
A UCS load event such as an upgrade or a config sync is interrupted and ASM is not restarted until another process reuses the process id from the upgrade.

Impact:
Updates from MCP are ignored which can cause:
* Missed sync events
* Missed updates for logging or pool configuration
* Missing security policies

Workaround:
Delete /var/ts/var/install/ucs_install.pid

1017233-1 : APM uses wrong session key when iRule for ActiveSync is used resulting in passwords corruption

Component: Access Policy Manager

Symptoms:
A corrupted password is sent as part of the "Authorization" header to the backend device and as a result, http 404 is returned

Conditions:
-- iRule for ActiveSync is used
-- The BIG-IP system has multiple tmms running

Impact:
User Authentication is failed by the backed server

1017153-2 : Asmlogd suddenly deletes all request log protobuf files and records from the database

Component: Application Security Manager

Symptoms:
Asmlogd suddenly deletes all request log protobuf files and records from the database

Conditions:
-- ASM provisioned
-- Config-sync setup, with frequent sync recovery and/or with a manual-sync device-group with ASM sync enabled

Impact:
Sudden loss of request logs

Workaround:
TL;DR - delete all the empty partitions and restart asmlogd

1) View all the partitions:

   # perl -MF5::Db::Partition -MData::Dumper -MF5::DbUtils -e 'print Dumper(F5::Db::Partition::retrieve_partitions_info(dbh => F5::DbUtils::get_dbh(), table_name => "PRX.REQUEST_LOG"))'

Take note of the 'PARTITION_NAME' and 'TABLE_ROWS' for each partition.

2) For every partition_X (in PARTITION_NAME) with '0' in TABLE_ROWS, delete it by:

   # perl -MF5::Db::Partition -MF5::DbUtils -e 'F5::Db::Partition::delete_partition(dbh => F5::DbUtils::get_dbh(), table_name => "PRX.REQUEST_LOG", partition_name => "partition_X"))'

3) restart asmlogd if and after done all deletes:

   # pkill -f asmlogd

NOTE: this workaround is temporary. Meaning, that the number of empty partitions will again accumulate and the same issue will happen again. The MAX number of partitions is - 100. Thus, it is advised to monitor the total number of *empty* partitions and repeat the workaround periodically. A cron script should work well. Normally, empty partitions should NOT accumulate. Thus, it is safe to run this script once an hour and remove all empty partitions.

1017149-3 : User-defined bot sigs that are created in tmsh don't overlap staged factory bot sigs

Component: Application Security Manager

Symptoms:
User-defined bot signatures that are created in tmsh are not enforced if there are similar factory bot signatures even when they are staged.

Conditions:
User-defined bot signature is created in tmsh and is matched also by staged factory bot signature.

Impact:
User-defined signature is not enforced correctly

Workaround:
Define user-defined bot signature using the GUI and if signature domain are needed but can't be configured by the GUI, define the domain in tmsh after the signature is created with:
tmsh mod security bot-defense signature <sig_name> domains replace-all-with { domains }

1017029-3 : SASP monitor does not identify specific cause of failed SASP Registration attempt

Component: Local Traffic Manager

Symptoms:
On affected BIG-IP versions, upon startup, the SASP monitor sends a single Registration Request to the SASP GWM (Group Workload Manager) to initiate monitoring of configured LTM pool members. This Registration Request contains all configured LTM pools (SASP Groups) and members (SASP Group Members).

If an error is encountered by the SASP GWM with one of the SASP Groups in the request, the registration of all groups fails.
However, the GWM does not provide any indication of *which* Group or member does not match the GWM configuration, hindering troubleshooting efforts.

The current BIG-IP behavior does not allow identification of the specific pool/member or monitor that is misconfigured and thus responsible for the failed SASP Registration attempt.

Conditions:
This behavior occurs on affected BIG-IP versions when the LTM SASP monitor is configured to monitor members of multiple LTM pools, and when BIG-IP start/restarts/reboots or the configuration is loaded.

Impact:
If a single Registration Request fails, the GWM terminates the connection with the Load Balancer (BIG-IP SASP monitor). This behavior is defined by the SASP protocol and SASP GWM implementation.

As a result, the SASP monitor will mark all pool members DOWN that are monitored by the SASP monitor, halting traffic from flowing to all pools monitored by the SASP monitor.

When an error occurs during registration of the LTM pools (SASP Groups), the GWM does not provide any indication of *which* Group or member does not match the GWM configuration.
Since a single error message is returned by the SASP GWM for the entire Registration Request (for all SASP Groups), the SASP monitor cannot indicate which Group (pool/member) or monitor caused the error.

This hinders efforts to troubleshoot the cause of the failure, while all traffic has stopped flowing to the SASP-monitored pools.

Workaround:
To diagnose this issue, first enable saspd debug logging:
tmsh mod sys db saspd.loglevel value debug_msg
(Optional alternative values include deep_debug and debug, but provide less detail.)

With saspd debug logging enabled, a message like the following in /var/log/monitors/saspd.log confirms that an error occurred during the Registration step:
SASPProcessor::processRegistrationReply: received error registering workloads with GWM ##.##.##.###:3860: 69 'InvalidGroup'

If the above message is found to confirm this issue, the primary path to resolution should be for the BIG-IP administrator to very carefully compare the BIG-IP pool/member and sasp monitor configuration with the SASP GWM configuration, to identify any mismatches or inconsistencies between the configurations.

On the BIG-IP system, to help isolate the misconfigured LTM pool(s)/member(s) causing the SASP Registration failure:
1. Remove the sasp monitor from configured LTM pools/members one at a time, and observe whether any pool members still monitored by the sasp monitor are marked UP.
2. Add the sasp monitor back to configured LTM pools/members one at a time, in the same order as removed, except for the last LTM pool/member from which it was removed.
3. Save and reload the configuration, and check whether the LTM pools/members monitored by the sasp monitor are still marked UP.
4. Repeat as necessary if there appear to be multiple LTM pools/members causing a SASP Registration failure.

Alternately, it may be possible to choose a different monitor (using a more fault-tolerant protocol) to monitor the status of affected pool members.

1016921-4 : SSL Connection mirroring - session resumption does not occur on standby when the session ticket is enabled

Component: Local Traffic Manager

Symptoms:
Eight-second delays occur on traffic through an SSL connection mirroring virtual server, and errors occur on the standby device:

crit tmm7[11598]: 01010025:2: Device error: crypto codec Couldn't create an OpenSSL EC group object OpenSSL error:0906D06C:PEM
err tmm7[11598]: 01010282:3: Crypto codec error: sw_crypto-7 Couldn't initialize the elliptic curve parameters.
crit tmm7[11598]: 01010025:2: Device error: crypto codec No codec available to initialize request context.

Conditions:
All of these conditions:
-- SSL connection mirroring enabled
-- Session tickets are enabled
-- High availability (HA) environment

and one of the following:
-- Running BIG-IP v14.1.4.1 or above (in the v14.1.x branch)
or
-- Engineering hotfix applied to v14.x/v15.x that has the ID760406 fix (see https://cdn.f5.com/product/bugtracker/ID760406.html)

Impact:
SSL traffic is significantly delayed and errors are thrown on the standby device.

Workaround:
Any one of the following could prevent the problem.

-- client-ssl profile cache-size 0.
-- client-ssl profile session-ticket disabled (default).
-- disable SSL connection mirror on virtual server.

1016589-3 : Incorrect expression in STREAM::expression might cause a tmm crash

Component: Local Traffic Manager

Symptoms:
Tmm restarts and generates a core file

Conditions:
An iRule uses STREAM::expression that contains certain strings or is malformed.

Stream expressions use a string representing a series of search/replace or search components. If there is more than one search-only component, this might cause tmm to crash.

The delimiter character used is the first character of each component search/replace pair. This example uses the '@' character as the delimiter, but it is malformed.

Given
  STREAM::expression "@dog@dot@cat@car@uvw@xyz@"
This would be interpreted as three items:
  search for "dog" replace with "dot"
  search for "at@"
  search for "r@uvw@xyz@"

This string should likely be:
  STREAM::expression "@dog@dot@@cat@car@@uvw@xyz@"
Which would be interpreted as
  search for "dog" replace with "dot"
  search for "cat" replace with "car"
  search for "uvw" replace with "xyz"

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Ensure that strings in STREAM::expression iRule statements do not have more than one search-only component and are well formed.

1016481-3 : Special JSON characters in Dom Signatures breaks configuration

Component: Fraud Protection Services

Symptoms:
FPS modules malfunction.

Conditions:
Unescaped special JSON characters used in Dom Signatures.

Impact:
FPS client-side JS unable to load configuration JSON.

Workaround:
Manually escape all special JSON characters in Dom Signatures.

1016449-2 : Gratuitous ARP sent to the old self IP address when a self IP is deleted/created.

Component: Local Traffic Manager

Symptoms:
In a high availability (HA) device, when an existing self IP is deleted and created with same name but different IP address, the new IP address may not update on peer device. After a failover, a gratuitous ARP containing the old self IP address may be sent by the peer device.

Conditions:
- high availability (HA) environment.
- Updating IP address of a self IP using tmsh commands(delete/create).
tmsh delete net self <SELFIP>
tmsh create net self <SELFIP> address <NEW_IPADDRESS> ...
tmsh run cm config-sync to_group <HA_GROUP>

Impact:
After failover, the newly Active BIG-IP won't be able to receive traffic meant for the self IP.

Workaround:
After deleting a self IP address, perform a config sync, and then create the new self IP address.

1016433 : URI rewriting is incorrect for "data:" and "javascript:"

Component: TMOS

Symptoms:
In case of LTM rewrite, HTML content having attribute values like "javascript:", "mailto:", "data:" etc are incorrectly rewritten as URI. This can cause web applications to fail.

Conditions:
-- LTM rewrite profile in URI translation mode.
-- HTML contents of web application contains attribute values like "javascript:abc", "data:" etc.

Impact:
Incorrect URI rewriting may cause web application to fail.

1016049-4 : EDNS query with CSUBNET dropped by protocol inspection

Component: Local Traffic Manager

Symptoms:
EDNS query might be dropped by protocol inspection with an error log in /var/log/ltm similar to:

info tmm[21575]: 23003139 SECURITYLOG Drop sip:192.168.0.0 sport:64869 dip:1.1.1.1 dport:53 query:test.f5.com qtype:malformed attack:malformed

Conditions:
Query containing CSUBNET option.

Impact:
Some queries might fail.

1016033-2 : Remote logging of WS/WSS shows date_time equal to Unix epoch start time

Component: Application Security Manager

Symptoms:
Enable the BD_MISC log and notice the REMOTE_LOG buffer printed in the bd logs. The date_time field will be set as closer to epoch time, for eg: "1969-12-31 16:27:00", instead of the current date. The same will be reflected in the remote logs as well.

Conditions:
Remote logging is enabled and the WS/WSS requests are sent to the BIG-IP

Impact:
The date_time information in WS traffic logged to a remote destination is incorrect. This makes correlating data difficult or impossible depending on the traffic.

1015881-3 : TMM might crash after configuration failure

Component: Application Security Manager

Symptoms:
TMM crashes after DoSL7 application configuration failure

Conditions:
DoSL7 configuration is changed, and the configuration change fails in TMM.

Impact:
Traffic disrupted while TMM restarts.

Workaround:
None

1015817-3 : Flows rejected due to no return route do not increment rejection stats

Component: Local Traffic Manager

Symptoms:
When flows are rejected due to no return route being present, the BIG-IP does not increment the appropriate statistics to indicated this.

Conditions:
Flows are rejected due to no return route.

Impact:
There is no indication of the real problem when viewing the statistics.

1015793-2 : Length value returned by TCP::payload is signed and can appear negative

Component: Local Traffic Manager

Symptoms:
When an iRule uses TCP::collect, if the amount of received data being buffered exceeds 2147483647 octets, the value returned from [TCP::payload length] will appear as a negative integer.

Conditions:
An iRule has been written to use TCP::collect with a very high-volume input stream.

Impact:
The unanticipated negative value may confuse the iRule's logic, with unpredictable effects. In extreme cases, a disruption of the TMM could occur.

Workaround:
Convert the result of "TCL::payload length" to an unsigned integer before using it, e.g.:

set curlen [expr { 0xffffffff & [TCP::payload length] }]

Note: the amount of accumulated payload still must not exceed 4,294,967,295 bytes (2^32-1).

1015501-4 : Changes to DHCP Profile are not used by tmm

Component: Policy Enforcement Manager

Symptoms:
After changing the authentication settings of a DHCP profile, the old authentication settings are still used.

Conditions:
Modify ltm profile dhcpv4 Discovery_DHCPv4_profile authentication { enabled true virtual RadiusAAA }

Impact:
New connections use existing listeners.

Workaround:
Restart tmm.

Impact of workaround: traffic disrupted while tmm restarts.

1015453-3 : Under some circumstances, the "Local Traffic" menu in System -> Configuration is inaccessible in the GUI

Component: TMOS

Symptoms:
The "Local Traffic" menu in System -> Configuration is inaccessible in the GUI.

Conditions:
-- LTM is licensed but not provisioned.
-- AFM, DNS, and DoS are not provisioned.
-- Other modules (such as APM) are provisioned

Impact:
Unable to configure SYN cookies.

Workaround:
Use TMSH to configure SYN cookies.

1015201 : HTTP unchunking satellite leaks ERR_MORE_DATA which can cause connection to be aborted.

Component: Local Traffic Manager

Symptoms:
The HTTP unchunking satellite leaks ERR_MORE_DATA when processing payload - this error code is then returned to other filters which will abort the connection due to this unexpected error (like PLUGIN).

Conditions:
Virtual server with HTTP, compression and NTLM profiles.

Impact:
Connection is aborted

1015161-2 : Ephemeral pool member may not be created when FQDN resolves to address that matches static node

Component: Local Traffic Manager

Symptoms:
An ephemeral pool member may not created if the FQDN name resolves to a new IP address that matches an existing statically-configured node.

When this occurs, a message like the following appears in the LTM log:

err mcpd[4498]: 01070734:3: Configuration error: node (/Common/_auto_10.10.120.12) not found.

Note that the node name in the message is the expected name of an ephemeral node created for this address, not the actual name of the statically-configured node with that IP address.

Conditions:
This may occur if:
-- The FQDN node and pool member are created with the "autopopulate enabled" option.
-- The FQDN name resolves to more than one IP address.
-- One of these IP addresses was not included in the previous DNS query result.
-- There is a statically-configured node with the same IP address.

Impact:
An ephemeral pool member is not created for the IP address newly included in the DNS query result. This results in traffic not being load-balanced to all of the expected pool members.

Workaround:
Use one of the following methods to prevent this issue from occurring:
-- Avoid creating statically-configured nodes using the same IP addresses returned by resolution of configured node/pool member FQDN names.
-- Configure the FQDN pool member with "autopopulate disabled" (default), which creates only a single ephemeral pool member.

Perform this sequence of actions to recover from an occurrence of this issue:
1. Remove any pool members referencing the conflicting IP address(es) from their respective pool(s).
2. Delete the statically-configured node(s) using the conflicting IP address(es).
3. Add any pool members referencing the conflicting IP address(es) back to their respective pool(s).

1015117-3 : Headers are corrupted during modification/insertion if a mix of end-of-line markers <CRLF> and <LF> are used

Component: Local Traffic Manager

Symptoms:
HTTP header corruption occurs after insertion/modification using an iRule in HTTP Headers which contain mixed end-of-line markers <CRLF> and <LF>.

Conditions:
- HTTP virtual server
- An iRule, policy or profile inserts an HTTP Request header - Such as x-forwarded-for
- An HTTP request contains some lines that end with <CRLF> and some that end with <LF>

Impact:
Inserted headers get concatenated in such a way that the HTTP request header gets corrupted.

Workaround:
Use HTTP headers with proper end-of-line markers in compliance with HTTP RFC

1015093-3 : The "iq" column is missing from the ndal_tx_stats table

Component: TMOS

Symptoms:
When viewing the ndal_tx_stats statistics table, the "iq" column is not present.

Conditions:
-- BIG-IP Virtual Edition.
-- Viewing statistics tables.

Impact:
Missing statistic; less information available.

1014973 : ASM changed cookie value

Component: Application Security Manager

Symptoms:
ASM changes the value of a cookie going to the server.

Conditions:
Specific conditions.

Impact:
Domain cookie will reach the server with a wrong value. Can cause different malfunctions depending on the application.

Workaround:
Change the following bigdb :
tmsh modify sys db asm.strip_asm_cookies value false
There is no need to restart asm.

1014761-1 : [GTM][GUI] Not able to enable/disable pool member from pool member property page

Component: Global Traffic Manager (DNS)

Symptoms:
You are unable to enable/disable pool members from the pool member property page.

Conditions:
Making changes via the pool member property page.

Impact:
You can submit the changes but the changes do not persist.

Workaround:
1. tmsh
or
2. enable/disable pool member from list of pool members instead of 'general properties' page

1014633-3 : Transparent / gateway monitors may fail if there is no route to a node

Component: Local Traffic Manager

Symptoms:
Transparent or gateway monitors may fail.

Conditions:
-- Transparent or gateway monitor configured.
-- Route does not exist to destination.

Impact:
The monitor fails and the node / pool member is marked unavailable.

Workaround:
Add a route to the destination.

1014361-1 : Config sync fails after provisioning APM

Component: TMOS

Symptoms:
Clustered high availability (HA) pair devices are not in sync and the status prompt indicates disconnected.

Conditions:
After provisioning APM

Impact:
HA pair devices are not in sync and break failover functionality

1014285-3 : Set auto-failback-enabled moved to false after upgrade★

Component: TMOS

Symptoms:
In a traffic group, auto-failback-enabled is changed from true to false after config save and upgrade.

During the upgrade, the following log can be observed:

info: Warning: Invalid configuration - Traffic Group has high availability (HA) Group "test_HA_Group" assigned and auto-failback-enabled set to true. Resetting auto-failback-enabled to false.

Conditions:
-- auto-failback-enabled is set to true and high availability (HA) groups are configured and assigned to traffic-group
-- The device is upgraded.

Impact:
Auto-failback-enabled is set from true to false and auto failback is disabled.

Workaround:
After upgrade, set the auto-failback-enabled to true.

1013937-2 : In-TMM HTTP and HTTPS monitors require RFC-compliant send strings to work.

Component: Local Traffic Manager

Symptoms:
Pool members that should be marked UP are incorrectly marked DOWN. No monitor traffic is seen on the wire.

If pool member monitor logging is enabled, an entry similar to the following example can be seen in the logs:

[0][1399] 2021-02-11 11:11:34.709360: ID 44 :TMM::handle_message(TMA_Message<tma_msg_args_notify>*): tmm monitor failed to connect [ tmm?=true td=true tr=false tmm_mid=0:1 addr=::ffff:192.168.10.100:80 srcaddr=none ]

If tma debug logging is enabled, an entry similar to the following example can be seen in the logs:

Feb 11 11:12:14 bigip1.local debug tmm[2259]: 01ad0019:7: Monitor Agent TMM 0: received probe response: MID 1, reason TMA_RESULT_FAIL(Probe response lost due to transient failure), info 0

Conditions:
- In-tmm monitoring is enabled (the bigd.tmm db key is set to enable).

- A HTTP or HTTPS monitor has been configured with a send string which is not RFC-compliant. For instance, the following string incorrectly includes a space before the Host header:

"GET / HTTP/1.1\r\n Host: example.com\r\nConnection: Close\r\n\r\n"

Impact:
Pool member monitoring is impacted and unreliable.

Workaround:
Ensure that you specify a send string which is fully RFC-compliant (for instance, in the example above, remove the space before the Host header).

1013629-3 : URLCAT: Vulnerability Scan finds many Group/User Read/Write (666/664/662) files

Component: Traffic Classification Engine

Symptoms:
Shared memory files in relation with URLCAT have file permissions set to (-rwxrwxrwx), which is not necessary and needs to be restricted to (-rw-rw-r--).

Conditions:
Performing a Vulnerability Scan on shared memory files in relation with URLCAT.

Impact:
Full permission can result in unintentional/unauthorized access, which could result in unexpected behavior of the URLCAT feature.

Workaround:
Manually change permissions from (-rwxrwxrwx) to (-rw-rw-r--) using the chmod command.

1013597-1 : `HTTP2::disable serverside` can reset flows

Component: Local Traffic Manager

Symptoms:
If `HTTP2::disable serverside` is called on a flow that has no HTTP2 configured on the server-side then it can incorrectly report an error and RST the flow.

Conditions:
1) iRule calls `HTTP2::disable serverside` on HTTP_REQUEST.
2) No HTTP2 configured on server-side.
3) server-side has already handled a flow.

Impact:
Traffic interruption, potential for a core (see ID1012533). Traffic disrupted while tmm restarts.

Workaround:
Don't call `HTTP2::disable serverside` if there is no HTTP2 on server-side.

1013297 : MRF persistence records are not removed with "DIAMETER::persist reset" in DIAMETER_INGRESS

Component: Service Provider

Symptoms:
MRF persistence records are not removed upon receiving CCA-t with with "DIAMETER::persist reset" in DIAMETER_INGRESS
and instead it is extending timeout for the sessions

Conditions:
MRF is not removing persistence record upon arrival of CCR/A-t and
Even After "DIAMETER::persist reset" is used in DIAMETER_INGRESS, MRF is not removing records

Impact:
Persistence records not removed.

1013209-2 : BIG-IP components relying on ca-bundle.crt may stop working after upgrade★

Component: Local Traffic Manager

Symptoms:
After upgrading, the BIG-IP system components may stop working due to missing CA certificates in ca-bundle.crt.

Conditions:
CA cert which is expired/will expire in 6 months (or 182 days) after upgrade is removed from ca-bundle.crt.

Impact:
The BIG-IP components such as TMM, APM etc. may stop working due to missing CA certificates in ca-bundle.crt.

Workaround:
Download the blended-bundle.crt from the F5 download site. It is located at
https://downloads.f5.com/esd/product.jsp?sw=Certificate-Authority-Bundle&pro=Certificate-Authority-Bundle

1013181-2 : TMM may produce core when dynamic CRL check is enabled on the client SSL profile

Component: Local Traffic Manager

Symptoms:
Possible tmm crash during ssl handshake with client SSL virtual server when dynamic CRL check is used.

Conditions:
All these 3 conditions need to be met.

- Client Certificate is set to "request" on the client SSL profile or using APM "On-Demand Cert Auth" agent set to "request".
- Dynamic CRL check is configured on the client SSL profile.
- Client does not submit its client certificate to the virtual server.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
- Configure Client Certificate "require" on the client SSL profile or, if using APM "On-Demand Cert Auth" agent, configure it to "require".

or

- Disable Dynamic CRL check. You can use static CRL file on the client SSL profile instead.

1012813-3 : Statsd can deadlock with rrdshim with the error that a stats file "is not an RRD file"

Component: Local Traffic Manager

Symptoms:
-- RRD graphs are not updated.
-- System statistics are stale.
-- Commands such as 'tmsh show sys memory' may not complete.
-- qkview does not complete, as it runs "tmsh show sys memory'.

You may see errors similar to:

-- err statsd[4908]: 011b0600:3: Error ''/var/rrd/access' is not an RRD file' during rrd_update for rrd file '/var/rrd/access'.
-- err statsd[5005]: 011b0600:3: Error '-1' during rrd_update for rrd file '/var/rrd/access'.

Conditions:
Corruption of a binary file in /var/rrd.

Impact:
Stats are no longer collected. Statsd and rrdshim deadlock, resulting in the issues noted in the Symptoms section.

Workaround:
Remove the corrupted file and restart statsd:
bigstart restart statsd

1012721-1 : Tmm may crash with SIP-ALG deployment in a particular race condition

Component: Service Provider

Symptoms:
Tmm crashes in SIP-ALG deployment

Conditions:
--- SIP-ALG is deployed
--- While processing first SIP REGISTER at server-side

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

1012601-2 : Alarm LED and LCD alert cleared prematurely on startup for missing PSU input

Component: TMOS

Symptoms:
Occasionally when starting up a BIG-IP system, if one PSU is connected but not supplying power, the corresponding amber alarm LED and "PSU status input lost" alert in the LCD menu can be incorrectly cleared after selecting System -> Power On from the LCD menu.

Conditions:
-- iSeries platforms
-- The BIG-IP device is powered on with one PSU connected and not supplying power

Impact:
The alarm LED is incorrectly turned off, and navigating to alerts on the LCD menu no longer shows a "PSU status input lost" alert after powering on.

Workaround:
Before powering on the BIG-IP device, check the alarm LED and navigate to alerts on the LCD screen. If there is a "PSU status input lost" alert, the corresponding power LED should be amber.

If the power LED is still amber after powering the system on but the alarm LED and LCD alert are cleared, please disregard the alarm LED and LCD in this case. The amber power LED is correct, and the PSU is still not supplying power.

Additionally, if you are logged into the console, running "bigstart restart chmand" will force a new "PSU status input lost" alert to be generated on the LCD and should also correct the alarm LED color to amber.

1012581-3 : Evidence of hardware syncookies triggered but no stats after tcp half-open is triggered

Component: Advanced Firewall Manager

Symptoms:
As soon as global syncookie enabled stats counts starts decrementing and when attack_detection_common callback function calls, the stats range is always under the configured packets per-second threshold, resulting in some tmms not being able to detect the attack but syncookies are already enabled on these tmms, and no statistics are gathered.

Conditions:
A SYN flood attack or similar SYN attack where SYNs are flooded into the BIG-IP system.

Impact:
SYN cookies may still be sent after traffic goes below the attack detection threshold.

Workaround:
Restart tmm

1012533-1 : `HTTP2::disable serverside` can cause cores

Component: Service Provider

Symptoms:
If `HTTP2::disable serverside` is called on a flow that has no HTTP2 configured on the server-side then it can incorrectly report an error and RST the flow (this is ID1013597).

Because of the timing of this RST, tmm may crash.

Conditions:
1) iRule calls `HTTP2::disable serverside` on HTTP_REQUEST.
2) No HTTP2 configured on server-side.
3) server-side has already handled a flow.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Don't call `HTTP2::disable serverside` if there is no HTTP2 on server-side.

1012493-4 : Systemauth.primaryadminuser set to anything but 'admin' causes internal error for mcp-state check

Component: TMOS

Symptoms:
When polling the endpoint /mgmt/tm/sys/mcp-state you get an error:

{
  "code": 500,
  "message": "MCP Session terminated",
  "errorStack": [],
  "apiError": 32768003
}

Conditions:
-- A user other than 'admin' polls /mgmt/tm/sys/mcp-state

Impact:
An error is returned for users that are not the admin user

Workaround:
You can use either of these workarounds:

-- Make the API call as user "admin"
-- Use tmsh
tmsh show sys mcp-state

1012449-3 : Unable to edit custom inband monitor in the GUI

Component: TMOS

Symptoms:
Attempting to edit a custom inband monitor in the GUI results in an error:

An error has occurred while trying to process your request.

Conditions:
Editing a custom inband monitor in the GUI.

Impact:
Unable to make changes to inband monitors in the GUI.

Workaround:
Use TMSH to modify the monitor, for example:

tmsh modify ltm monitor inband <monitor name> ...

1012221-2 : Message: childInheritanceStatus is not compatible with parentInheritanceStatus★

Component: Application Security Manager

Symptoms:
The BIG-IP system is unable to deploy a revision of upgraded child policies and you see an error:

Failed pushing changed objects to device <device>: Could not update the Section 'Threat Campaigns'. childInheritanceStatus is not compatible with parentInheritanceStatus.

Conditions:
-- An ASM Child Policy is present on the BIG-IP device in a version earlier than 14.0.0
-- The BIG-IP system is upgraded to version 14.0.0 or later

Impact:
This corruption impacts BIG-IQ interactions with the Child Policy and causes exported Child Policies to be incorrect.

Workaround:
After upgrading, perform the following:

1. Log into the BIG-IP Configuration Utility
2. Go to Security :: Application Security :: Security Policies :: Policies List
3. Select the first Parent Policy
4. Go to Inheritance settings and change Threat Campaigns from None to Optional
5. Click Save Changes
6. Change Threat Campaigns from Optional back to None
7. Click Save Changes
8. Click Apply
9. Repeat steps 3-8 for each additional Parent Policy

1012061-3 : Link Controller auto-discovery does not remove deleted virtual servers

Component: Global Traffic Manager (DNS)

Symptoms:
Removed virtual servers are still displayed as available in link controller configuration.

Conditions:
1. GTM server representing Link Controller is configured for high availability (HA)
2. There is no working iQuery session with one of the units

Impact:
Virtual servers linger in bigip_gtm.conf configuration after they are deleted.

Workaround:
Make sure that there is at least one working iQuery channel with all devices configured under GTM server object.

1012049-3 : Incorrect virtual server list returned in response to status request

Component: TMOS

Symptoms:
Returned list of virtual servers shows all virtual servers rather than no servers, or a specific list of servers.

Conditions:
-- Navigate through the GUI to Local Traffic :: Virtual Servers : Virtual Server List page.
-- Click the 'Status' drop down and select a status that returns no virtual servers or a specific subset of the virtual servers.
-- Modify the resulting request to insert ' --' url-encoded.

Impact:
The returned list shows all virtual servers instead of the ones specifically queried.

Workaround:
None

1012009-1 : MQTT Message Routing virtual may result in TMM crash

Component: Local Traffic Manager

Symptoms:
The BIG-IP system provides an option to use Message Routing virtual servers for MQTT traffic. It uses a different approach to associate a client side and a server side than a standard virtual server. In some instances, a server side is incorrectly handled.

Conditions:
-- A Message Routing virtual with MQTT protocol.
-- A client attempts to reconnect.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

1011889-4 : The BIG-IP system does not handle DHCPv6 fragmented traffic properly

Component: Local Traffic Manager

Symptoms:
In the following two scenarios, packets may get dropped by the BIG-IP device.

- [client MTU 1500]<--->(vlan1)<--->[MTU 1500BIG-IP MTU 9000]<--->(vlan2)<--->[MTU 1500server]
If the response from the server is large enough to be fragmented, the BIG-IP system is not able to process the packets.

- [client MTU 1500]<--->(vlan1)<--->[MTU 1500BIG-IP MTU 9000]<--->(vlan2)<--->[MTU 9000server]
Large response coming in a single packet is not fragmented properly on the client-side, then packets may be dropped.

Conditions:
DHCPv6 MTU size is greater than or equal to 1500.

Impact:
Packets are dropped, traffic is disrupted.

1011801 : L2 behavior becomes inconsistent while scaling address space

Component: TMOS

Symptoms:
ARP/NDP+IP behavior becomes inconsistent for additional flows.

Conditions:
-- Two VIPRION 4800 chassis, fully populated
-- Chassis to chassis HA
-- Provisioned: LTM, AVR, CGN
-- All Subscriber/Internet flows are CGN->LSN, routed to/from the chassis broadcast domain.
-- All flows are routed and have their own Sub/Int VLAN pairs.

Steps to Reproduce:
Add flow, test validity, start traffic. Repeat.

Impact:
Issue with ICMP request / response from devices within the broadcast domain(s) associated with the BIG-IPs

Workaround:
None.

1011433-3 : Heap allocation failure would cause tmm core in resolver_deprecated_wire2result

Component: Global Traffic Manager (DNS)

Symptoms:
Tmm core in resolver_deprecated_wire2result.

Conditions:
Out of heap space.

Impact:
Traffic disrupted while tmm restarts.

1011285-2 : The iControl REST API no longer accepts an empty 'lastResortPool' property for wide IP objects.

Component: Global Traffic Manager (DNS)

Symptoms:
If you attempt a POST or PATCH iControl REST request against a wide IP, and you include an empty 'lastResortPool' property in the JSON body, the system rejects the request as invalid and returns the following validation error:

{
  "code": 400,
  "message": "\"last-resort-pool\" requires a value",
  "errorStack": [],
  "apiError": 26214401
}

Conditions:
A POST or PATCH command against a wide IP object includes an empty lastResortPool property.

Impact:
Inability to create or modify the wide IP object.

Workaround:
You can use either of the following, depending on what you want to do:

-- To create a new wide IP object, remove the empty 'lastResortPool' property from the JSON body.

-- To remove the last-resort-pool from an already existing wide IP, define the property as follows instead:
"lastResortPool":"none"

1011265-1 : Failover script cannot read /config/partitions/ after upgrade★

Component: TMOS

Symptoms:
After upgrading, failover does not work correctly. An error is encountered in /var/log/audit/log:

type=AVC msg=audit(1617263442.711:206): avc: denied { read } for pid=17187 comm="active" name="partitions" dev="dm-11" ino=259 scontext=system_u:system_r:f5config_failover_t:s0 tcontext=system_u:object_r:f5config_t:s0 tclass=dir

Conditions:
-- High availability (HA) environment configured
-- Devices are upgraded to version 14.1.4
-- A failover occurs

Impact:
Failover does not complete. Floating IP addresses do not move to the active device.

Workaround:
Tmsh modify sys db failover.selinuxallowscripts enable

1011217-3 : TurboFlex Profile setting reverts to turboflex-base after upgrade★

Component: TMOS

Symptoms:
Custom TurboFlex Profile settings revert to the default turboflex-base profile after an upgrade.

Conditions:
-- iSeries platform with ix800 performance license
-- A non-default TurboFlex Profile is applied
-- The BIG-IP device is upgraded

Impact:
Some features of the previously selected TurboFlex Profile that are not part of the turboflex-base profile, are missing after upgrade. The TurboFlex Profile must be reconfigured after upgrade.

Workaround:
Reconfigure the TurboFlex Profile after upgrade.

1011093-3 : Remote log messages are separated into 2 lines if max_request_size limit falls exactly on \n char.

Component: Application Security Manager

Symptoms:
Remote log messages are separated into 2 lines instead of one line when \n (newline) falls exactly on the last char of max_request_size.

Conditions:
-- A remote log profile is defined with maximum request size and a field list that contains 'request', and is attached to a virtual server.
-- A request is sent and newline falls exactly on the last byte of the maximum request size limit.

Impact:
Remote log messages are separated into 2 lines

Workaround:
Increase the maximum request size limit.

1011081-2 : Connection lost to the Postgres client during the BIG-IP bootup process

Component: TMOS

Symptoms:
During the boot process of BIG-IP, mcpd loses the connection to the Postgres with FATAL error with a "Broken Pipe" error.

Conditions:
-- BIG-IP devices are configured in high availability (HA).
-- BIG-IP configuration has the keys configured in Postgres Database.

Impact:
Mcpd loses the connection to the Postgres with FATAL error with a "Broken Pipe" error

1011045-1 : GUI does not reflect 'Fully Automatic' state , which is substate of Automatic learning mode.

Component: Application Security Manager

Symptoms:
When disabling 'Fully Automatic' mode in policy configuration (either through the GUI or REST) the GUI still indicates that the policy is in Automatic learning mode.

Conditions:
1. Configure a policy using the Fundamental template.
2. Change Learning Mode to 'automatic only' by REST, or uncheck the 'Fully Automatic' box in the GUI (Policy Configuration page).

Impact:
The GUI still shows the Learning Mode state, but not the 'Fully Automatic' state.

As a result, the administrator cannot be sure of the actual state of learning mode via the GUI.

Workaround:
The actual state is reflected properly when viewed via the REST command.

GET https://big-ip-mgmt/mgmt/tm/asm/policies/policy_id/policy-builder

1010785-1 : Online help is missing for CRL in client SSL profile and server SSL profile

Component: TMOS

Symptoms:
Help tab does not show any documentation for CRL in client SSL profile and server SSL profile.

Conditions:
This can be seen in the online help for the client SSL and server SSL profiles.

Impact:
There are no online help instructions to configure CRLs.

Workaround:
None

1010761-1 : Missing TMSH help description for client-ssl profile 'CRL'

Component: TMOS

Symptoms:
Running the command "tmsh help ltm profile client-ssl" shows that certificate revocation list (CRL) is not present/described.

Conditions:
Run tmsh help ltm profile client-ssl

Impact:
The CRL is not present/described.

Workaround:
None

1010717-3 : Default DoS profile creation from tmsh is incorrectly interpreted by DoS profile GUI

Component: Anomaly Detection Services

Symptoms:
Creating a DoS profile from tmsh makes the Bados feature appear to be enabled in the GUI, which is incorrect.

Conditions:
Create DoS profile from tmsh, and not from GUI.

Impact:
Inconsistency between the DoS profile and what you see in the GUI.

Workaround:
Disable BADOS in the GUI after creating a DoS profile from tmsh.

1010617-3 : String operation against DNS resource records cause tmm memory corruption

Component: Global Traffic Manager (DNS)

Symptoms:
Tmm cores with umem debug enabled.

Conditions:
A string operation is performed against DNS resource records (RRs) in an iRule.

Impact:
Tmm memory corruption. In some situations, tmm could crash. Traffic disrupted while tmm restarts.

Workaround:
Do not use string operation against DNS RRs.

1010597-2 : Traffic disruption when virtual server is assigned to a non-default route domain★

Component: Access Policy Manager

Symptoms:
Assigning a virtual server to a non-default route domain might cause a traffic disruption.

Conditions:
-- An APM virtual server is assigned to a route domain other than 0 (zero, the default).
-- An access policy has an agent that results in tmm communicating to the renderer (e.g., Logon agent, HTTP 401 Response agent, and others).

Impact:
Access policy fails.

Workaround:
Choose 'Parent Name = 0 (Partition Default Route Domain)' in the route domain that is failing.

1010585-2 : XML profile is created incorrectly from WSDL

Component: Application Security Manager

Symptoms:
When XML profile is created from WSDL schema (containing an element with maxOccurs="unbounded") and request is sent with more than 1 instance of that element, a violation is raised: "XML data does not comply with schema or WSDL document".

Conditions:
-- ASM security policy contains XML profile created from WSDL schema
-- An HTML element has maxOccurs="unbounded"
-- The element is of a type which is defined in two different namespaces.

Impact:
A violation is raised on valid HTTP requests.

Workaround:
Rename one of the instances of the type which has same name in two namespaces.

1010341-2 : Slower REST calls after update for CVE-2021-22986

Component: TMOS

Symptoms:
As a result of changes were introduced to increase security around the REST API, REST calls that use HTTP basic authentication may take longer to execute that they did previously.

Conditions:
- REST API calls
- HTTP basic authentication used for the REST calls

Impact:
- Degraded performance of the REST API

Workaround:
Update automation scripting to use token based authentication, which is both faster and more secure than HTTP basic authentication

1010245-1 : Duplicate ipsec-sa SPI values shown by tmsh command

Component: TMOS

Symptoms:
A tmsh command which shows ipsec-sa instances can display the 32-bit SPI more than once for the same security association (SA) but in different tmm instances.

Conditions:
Especially in the context of failover where Standby becomes Active, sometimes the same SA appears more than once when shown by a tmsh command, but in different tmms.

Impact:
The duplicate SPI displayed is a cosmetic effect only.

Workaround:
None

1010209-3 : BIG-IP configuration allows literal CR and LF characters in LTM monitor send and recv strings

Component: Local Traffic Manager

Symptoms:
It is possible, using REST or tmsh (vi the 'tmsh edit' command) to embed literal carriage return (CR) or line feed (LF) characters in an mcpd object's parameters, rather than the two-byte sequence \r or \n. This can be done with a monitor send or receive string. When the configuration is loaded, the CR characters are stripped off of the strings, resulting in invalid HTTP in the monitor strings.

Conditions:
-- Using HTTP monitors.
-- Embedding literal CR/LF characters in the monitor's send or receive string.

Impact:
Monitors stop working; pool members being monitored are considered inaccessible.

Workaround:
Do not use embedded unprintable characters in monitor send or receive strings.

1009949-2 : High CPU usage when upgrading from previous version★

Component: TMOS

Symptoms:
When upgrading version from 12.x to 14.1.4, ospfd has high cpu utilization.

Conditions:
-- OSPF is enabled.
-- The BIG-IP system is upgraded from 12.x to 14.1.4.

Impact:
Performance Impact.

1009921-1 : 'SSL::verify_result' iRule command may return incorrect value when combined with dynamic CRL check

Component: Local Traffic Manager

Symptoms:
'SSL::verify_result' iRule command may return '0' (validation check success) even if the client certificate has already been revoked. The expected return value on a revoked certificate is '23' (certificate revoked).

Conditions:
-- Dynamic CRL check is configured on the client SSL profile.

-- An iRule checks client certificate validity by 'SSL::verify_result' command. Here is example.

  when HTTP_REQUEST {
     set cert [SSL::cert 0]
     set cert_string [X509::verify_cert_error_string [SSL::verify_result]]
     set code [SSL::verify_result]
     if { [SSL::verify_result] == 0 }{
        log local0. "success $cert_string $code" return
     }
     else {
        log local0. "failed $cert_string $code" HTTP::respond 403 content "<html>Invalid client certificate:</html>\n" }
  }

Note: SSL::cert command is in fact the trigger for the behavior as it causes a rebuild of the certificate chain and fetches the status from the cache, which is 0. The reason it is 0 in the cache is that, when dynamic CRLs are used, the system verifies the cert, receives a code 23 (revoked), but the system does not update the SSL session cache with the result.

Impact:
The iRule 'SSL::verify_result' command may return unexpected values. Traffic can be unexpectedly load-balanced to the backend pool member when the end user client requests the virtual server with the revoked certificate.

Workaround:
You can use any of the following workarounds:

-- Remove the SSL::cert command from the iRule (it is not needed in HTTP_REQUEST since the system still has the verify result in runtime code).

-- Set cache-size 0 (zero) on client SSL profiles:
# tmsh modify ltm profile client-ssl [client-ssl profile name] cache-size 0

-- Use authentication frequency 'always' on client SSL profiles:
# tmsh modify ltm profile client-ssl [client-ssl profile name] authenticate always

1009793-1 : Tmm crash when using ipsec

Component: TMOS

Symptoms:
Tmm crashes.

Conditions:
Set sys db variable IPsec.RemoveRedundantSA to enable.
set sys db variable ipsec.removeredundantsa.delay to one.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Set sys db variable IPsec.RemoveRedundantSA to disable.
set sys db variable ipsec.removeredundantsa.delay to zero.

1009161-1 : SSL mirroring protect for null sessions

Component: Local Traffic Manager

Symptoms:
Possible tmm crash during ssl handshake with connection mirroring enabled.

Conditions:
14.1 after changes applied for ID760406 and ssl handshake dropped during ssl handshake session state.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Disable connection mirroring

1009093-1 : GUI widgets pages are not functioning correctly

Component: Application Visibility and Reporting

Symptoms:
Some links and drop-down fields are not available for 'pressing/clicking' on AVR-GUI widgets pages

Conditions:
AVR/ASM is provisioned

Impact:
Cannot use AVR GUI pages correctly

Workaround:
1. Back up the following file, and then edit it:
/var/ts/dms/amm/templates/overview.tpl

1.a. Remove the following line:
<script type="text/javascript" src="script/analytics_stats.js{{BIGIP_BUILD_VERSION_JS}}"></script>

1.b. Add the following lines after the 'var _default_smtp = '{{smtp_mailer}}';' line:
$(document).ready(function() {
        if(!window.AVR_LOCALIZATION) return;
        $('.need-localization-avr').each(function() {
            var item = $(this);
            if (item.is("input")) {
                var key = "avr." + item.val().replace(/\s/g, '');
                item.val(window.AVR_LOCALIZATION[key] || item.val());
            } else {
                var key = "avr." + item.text().replace(/\s/g, '');
                item.text(window.AVR_LOCALIZATION[key] || item.text());
            }
        }).removeClass('need-localization-avr');
    });

1.c. Save and exit (might require the 'force' save with root user).

2. Log out of the GUI.
3. Log back in.

1009037-3 : Tcl resume on invalid connection flow can cause tmm crash

Component: Global Traffic Manager (DNS)

Symptoms:
Tmm cores while passing traffic.

Conditions:
Tcl resume operations such as RESOLV::lookup performed on a dying connflow.

Impact:
Traffic disrupted while tmm restarts. This is a rarely occurring issue.

Workaround:
None

1008501-3 : TMM core

Component: Local Traffic Manager

Symptoms:
TMM crashes.

Conditions:
The conditions under which this occurs are unknown.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

1008269-3 : Error: out of stack space

Component: TMOS

Symptoms:
When polling for profile statistics via iControl REST, the BIG-IP system returns an error:

Error: out of stack space

Conditions:
Polling stats via iControl REST.

Impact:
You are intermittently unable to get stats via iControl REST.

Workaround:
None

1008233-3 : The gtm_add command fails but reports no error

Component: Global Traffic Manager (DNS)

Symptoms:
Running the command 'gtm_add' does not add the local GTM to the remote GTM sync group, and it does not display an error message.

Conditions:
The remote GTM has a GTM iRule that references an LTM datagroup that does not exist on the local GTM.

Impact:
The gtm_add command fails silently.

Workaround:
Add the remote LTM datagroup to the local LTM.

1008169-3 : BIG-IP systems disconnect the DIAMETER transport connection if it receives an answer message without a Result-Code AVP

Component: Service Provider

Symptoms:
If the BIG-IP system receives a DIAMETER answer message without a Result-Code AVP (and/or Experimental-Result-Code AVP), it terminates the connection at the transport (L4) level.

Conditions:
-- Using DIAMETER.
-- Processing an answer message that is missing both Result-Code and Experimental-Result-Code AVPs.

Impact:
The connection is terminated without properly notifying the DIAMETER peer.

Workaround:
None

1008017-5 : Validation failure on Enforce TLS Requirements and TLS Renegotiation

Component: Local Traffic Manager

Symptoms:
The configuration load fails with an error:

err mcpd[4182]: 0107186b:3: Invalid "enforce-tls-requirements" value for profile /prod/my_profile. In Virtual Server (/common/my_virtual_server) an http2 profile with enforce-tls-requirements enabled is incompatible with client-ssl/server-ssl profile with renegotiation enabled. Value must be disabled.

Conditions:
BIG-IP system allows this configuration and fails later:

-- Virtual server with HTTP/2, HTTP, and client SSL profiles (with renegotiation disabled).

1. Enable the 'Enforce TLS Requirements' option in the HTTP/2 profile (by default it is enabled).
2. Add server SSL profile with 'TLS Renegotiation' enabled.
3. Save the configuration.
4. Load the configuration.

Impact:
The configuration will not load if saved.

Workaround:
If enabling 'Enforce TLS Requirements' in a HTTP/2 profile configured on a virtual server, ensure that 'TLS Renegotiation' is disabled in the Server SSL profiles on that virtual server.

1008009-2 : SSL mirroring null hs during session sync state

Component: Local Traffic Manager

Symptoms:
Tmm crashes.

Conditions:
-- SSL connection mirroring enabled
-- Running a version where ID 760406 is fixed (https://cdn.f5.com/product/bugtracker/ID760406.html)
-- A handshake failure occurs during session sync

Impact:
Traffic disrupted while tmm restarts.

Workaround:
Disable connection mirroring

1008005 : Configuration load fails due to BOTDEFENSE_ACTION event in iRule after upgrade★

Component: Application Security Manager

Symptoms:
The configuration fails to load after a software upgrade with an error:

err mcpd[6990]: 01071912:3: BOTDEFENSE_ACTION event in rule (/Common/my_irule) requires an associated BOTDEFENSE profile on the virtual-server (/Common/example_virtual_server).

Conditions:
- ASM provisioned
- DoS Application profile attached to a virtual server
- An iRule with BOTDEFENSE_ACTION event attached to a virtual server
- Upgrading from 13.x to 14.x/15.x

Impact:
The configuration load at the end of the upgrade fails.

Workaround:
Prior to upgrade, remove all iRules that have a BOTDEFENSE_ACTION event from all virtual servers. After the upgrade is successful, add the bot-defense profile to the virtual servers and add the iRules.

1007909-3 : Tcpdump with :p (peer flow) flag does not capture forwarded between TMMs

Component: TMOS

Symptoms:
When using tcpdump with the :p flag, it does not capture all packets that are processed by multiple TMMs.

Conditions:
Traffic flows are handled by multiple TMMs, e.g., one of the following:

-- 'preserve strict' set on virtual servers
-- a CMP-demoted virtual server
-- Service Provider (SP) DAG configured, but using custom mappings for some client IP addresses, or some traffic flows using VLANs without SPDAG configured.

Impact:
Causes confusion since there will be packets missing from tcpdump captures.

Workaround:
Use a packet capture filter to capture clientside and serverside flows directly, without relying on the peer flow flag (":p").

1007869-2 : Upgrade from v14.1.x to v15.1.2.1 or later fails for app-tunnel, RDP and config migration★

Component: Access Policy Manager

Symptoms:
Config load fails with the following error.

01070712:3: Failed: name (/Common/<customization resource name>) Cache path (/config/filestore/files_d/Common_d/customization_group_d/:Common:<customization resource name with revision>) does not exist and there is no copy in trash-bin to restore from.
Unexpected Error: Loading configuration process failed.

An upgraded config may show RDP resources missing from the Advanced resource assign agent:

# tmsh list apm policy agent resource-assign
apm policy agent resource-assign test-simple-ap-01_act_full_resource_assign_ag {
    rules {
        {
            portal-access-resources { /Common/test-pa-01 }
            remote-desktop-resources { /Common/test-rdp-01 } !!! this line may go missing in v15.1.2.1 !!!
            webtop /Common/test-full-wt-01
        }
    }
}

Conditions:
Upgrade to v15.1.2.1 or later with AppTunnel and RDP resources.

Impact:
The configuration fails to load following the upgrade.

Workaround:
Modify the revision numbers resources, customization path for missing webtop links.

Example:
=======

(1) The following AppTunnel config causes config loading failure:

01070712:3: Failed: name (/Common/Example_resource_app_tunnel_customization) Cache path (/config/filestore/files_d/Common_d/customization_group_d/:Common:Example_resource_app_tunnel_customization_1) does not exist and there is no copy in trash-bin to restore from.

(2) Modify as follows:

In TMSH:
#cp /config/filestore/files_d/Common_d/customization_group_d/\:Common\:Example_resource_app_tunnel_customization_1 /config/filestore/files_d/Common_d/customization_group_d/\:Common\:Example_resource_app_tunnel_customization_2

In bigip.conf under customization configuration:
Rename Example_resource_app_tunnel_customization_1 to Example_resource_app_tunnel_customization_2 (modifying revision numbers from _1 to _2)

#tmsh load sys config

(3) For a missing RDP resource: use VPE to edit access profiles and find the appropriate 'Advanced Resource Assign' agents. Add the appropriate RDP resources in the 'Advanced Resource Assign' agent.
==============

1007749-1 : URI TCL parse functions fail when there are interior segments with periods and semi-colons

Component: Local Traffic Manager

Symptoms:
URI::path, URI::basename, etc., return the wrong strings, e.g., URI::path can return a subset of what it should return.

Conditions:
This happens for URIs like these:
/alpha/beta/Sample.text;param/trailer/
/alpha/beta/Sample.text;param/file.txt

Impact:
iRules fail to work as expected for these types of URIs.

This occurs because the combination of the period and semi-colon in 'Some.thing;param' confuses the BIG-IP system parser, causing incorrect results to be returned.

Workaround:
If this is happening for known URIs, then it should be possible to process those URIs in a special way within iRules to do things like temporarily replacing interior periods with another character, like a plus sign.

1007677-1 : Artifact resolution on SAML IdP fails with error 'SAML SSO: Cannot find SP connector'

Component: Access Policy Manager

Symptoms:
SAML fails on APM SAML IdP after receiving the SAML ArtifactResolve Request, and needs to extract Artifact data from sessionDB to build the assertion. An error is logged:

-- err tmm[24421]: 014d1211:3: ::ee23458f:SAML SSO: Cannot find SP connector (/Common/example_idp)
-- err tmm[24421]: 014d0002:3: SSOv2 plugin error(12) in sso/saml.c:11864

Conditions:
The 'session-key' in the sessiondb includes a colon ':' in its value.

Impact:
SAML may fail on APM SAML IdP using artifact binding.

1007629-1 : APM policy configured with many ACL policies can create APM memory pressure

Component: Access Policy Manager

Symptoms:
High APM memory usage even in idle state when no traffic is flowing.

Conditions:
APM policies configured with resource assignment agents with ACL policies configured. The idle state memory usage will be proportional to the number of resource assignment agents and ACL policies configured

Impact:
If idle state memory of APM is high then less memory is available for use during traffic flow and thereby can lead to OOM crashes and failover.

Workaround:
None

1007113-1 : Pool member goes DOWN if the time difference between SCTP INIT and SCTP ABORT is less than two seconds

Component: Service Provider

Symptoms:
In case of diameter over SCTP, while aborting the connection of the pool member, if SCTP INIT is sent by the BIG-IP system before the SCTP ABORT is processed, the pool member is marked UP (provided the SCTP connection is established successfully), and then goes down later, immediately after ABORT is fully processed.

Conditions:
The time difference between SCTP ABORT and SCTP INIT is very small, i.e., 2 seconds or less

Impact:
Pool member is marked DOWN even though it is active

Workaround:
If the watchdog is configured in the diameter session profile (i.e., watchdog-timeout is greater than 0), the pool member is marked UP after DWA is received from the pool member.

1007109-1 : Flowmap entry is deleted before updating its timeout to INDEFINITE

Component: Service Provider

Symptoms:
A sessiondb entry cannot be looked up.

Conditions:
A connection takes more than 5 seconds to establish. For example, in SCTP, the connection establishment might take more than 5 seconds with a maximum timeout of 60 seconds

Impact:
The session db lookup failure leads to the establishment of a new connection, even though there is an existing connection to the pool member.

Workaround:
Increase the temporary timeout of the session db entry to 60 seconds.

1006893-2 : Use of ACCESS::oauth after ACCESS::session create/delete may result in TMM core

Component: Access Policy Manager

Symptoms:
When ACCESS::oauth is used after ACCESS::session create/delete in an iRule event, TMM may core.

Conditions:
ACCESS::oauth is used after ACCESS::session create/delete in an iRule event.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
No workaround

1006857-3 : Adding a source address list to a virtual server in a partition with a non-default route domain fails

Component: Local Traffic Manager

Symptoms:
Adding a source address list to a virtual server in a partition with a non-default route domain fails with an error similar to:

0107176c:3: Invalid Virtual Address, the IP address 10.10.10.20%2 already exists.

Conditions:
-- A partition with a non-default route domain.
-- A virtual server and address list in said partition.
-- Modifying the virtual server to use the address list as its source address.

Impact:
Unable to use a source address list in a partition with a non-default route domain.

Workaround:
Manually create a traffic-matching-criteria object in TMSH with the desired configuration, and then create the virtual server using that traffic-matching-criteria.

1006781-1 : Server SYN is sent on VLAN 0 when destination MAC is multicast

Component: Local Traffic Manager

Symptoms:
TCP connections cannot be established when a multicast destination MAC is used. Traffic outage occurs.

Conditions:
Virtual wire with multicast destination MAC used while establishing TCP connections.

Impact:
Traffic outage.

Workaround:
None

1006509 : TMM memory leak★

Component: Access Policy Manager

Symptoms:
After upgrading to 15.1.0.4, tmm memory grows and tmm may restart or the BIG-IP system may reboot.

Conditions:
-- APM provisioned
-- Other conditions are unknown but it linked to single sign-on functionality

Impact:
Tmm memory grows and tmm may restart. Traffic disrupted while tmm restarts.

1006449-2 : The default size of the subagent object cache possibly leading to slow snmp response time★

Component: TMOS

Symptoms:
After upgrading from 13.1.0.8 to 15.1.0.5, BIG-IP CPU utilization increases and SNMP is slow to respond.

Conditions:
SNMP client repeatedly polls BIG-IP for OIDs in multiple tables over a short period of time.

Impact:
SNMP queries take an unusually long time to return data, and BIG-IP CPU utilization is higher.

1006181-1 : ASM fails to start after upgrade if different ASM policies use login pages with the same name★

Component: Application Security Manager

Symptoms:
ASM fails to start with error message in asm_config_server.log:

Failed on insert to DCC.ACCOUNT_LOGIN_OBJECT_ATTRIBUTES (DBD::mysql::db do failed: Column 'object_crc' cannot be null

Conditions:
Upgrade system where two or more ASM policies have a login page with the same name.

Impact:
ASM fails to start

Workaround:
Delete the login page that has a name used by multiple ASM policies and create it again.

1006157-1 : FQDN nodes not repopulated immediately after 'load sys config'

Component: Local Traffic Manager

Symptoms:
A DNS query is not sent for configured FQDN nodes until the TTL value expires.

Conditions:
This occurs when 'load sys config' is executed.

Impact:
Name addresses do not resolve to IP addresses until the TTL expires.

Workaround:
You can use either of the following workarounds:

-- Change the default TTL value to be fewer than 300 seconds (the default value is 300 seconds).

-- Restart dynconfd daemon:
tmsh restart sys service dynconfd

1005309-2 : Additional Tcl variables showing information from the AntiBot Mobile SDK

Component: Application Security Manager

Symptoms:
When using the Bot Defense iRules together with the AntiBot Mobile SDK, there are several variables missing. These missing variables would be useful for correct troubleshooting and pattern matching.

Conditions:
Using the AntiBot Mobile SDK together with Bot Defense iRules

Impact:
Some variables that are required for troubleshooting and pattern matching of the AntiBot Mobile SDK are missing.

Workaround:
None

1005181-2 : Bot Defense Logs indicate the mobile debugger is used even when it is not

Component: Application Security Manager

Symptoms:
When using the AntiBot Mobile SDK, the Bot Defense Request Log may indicate that the mobile debugger is enabled, even when it is not.

Conditions:
Using the AntiBot Mobile SDK with the Bot Defense Profile

Impact:
Request log is showing an incorrect value.

Workaround:
None

1005109-2 : TMM crashes when changing traffic-group on IPv6 link-local address

Component: Local Traffic Manager

Symptoms:
TMM crashes when changing the traffic-group on an IPv6 link-local address.

Conditions:
Changing the traffic-group on an IPv6 link-local address.

Impact:
Traffic disrupted while tmm restarts.

Workaround:
None

1004953-3 : HTTP does not fall back to HTTP/1.1★

Component: Local Traffic Manager

Symptoms:
After upgrading, the BIG-IP system's HTTP profile no longer falls back to HTTP/1.1 if a client sends a corrupted URI.

Conditions:
-- Client sends a corrupted URI (for example a URI containing a space).

Impact:
The BIG-IP system treats the URI as an HTTP/0.9 request (as per RFC) and forwards only the first request line. In previous releases, the BIG-IP system treated the URI as a HTTP/1.1 request.

Workaround:
None.

1004929-2 : During config sync operation, MCPD restarts on secondary blade logging 01020012:3: A unsigned four-byte integer message item is invalid.

Component: TMOS

Symptoms:
While receiving a config sync operation, mcpd on a secondary blade may restart, logging:

err mcpd[6383]: 01070734:3: Configuration error: Configuration from primary failed validation: 01020012:3: A unsigned four-byte integer message item is invalid.... failed validation with error 16908306

Conditions:
-- A VIPRION system (or cluster-based vCMP guest) with more than one blade processes a full configuration load, i.e. as a result of running "tmsh load sys config" or receiving a full-load config sync from peer BIG-IP.

-- The system generates a large number of warning messages during a configuration load, whose total length is larger than 65,535 bytes.

These warnings can be seen in the output of "tmsh load sys config" or "tmsh load sys config verify", or are logged under message ID 01071859

An example of such a warning is:

SSLv2 is no longer supported and has been removed. The 'sslv2' keyword in the cipher string of the ssl profile (/Common/ssl-profile-1) has been ignored.

Impact:
MCPD on secondary blades restart. Those blades are inoperative while services restart.

Workaround:
Address the warnings reported by the system.

1004897-4 : 'Decompression' is logged instead of 'Max Headers Exceeded' GoAway reason

Component: Local Traffic Manager

Symptoms:
In HTTP2 setup, when the header count from the client request exceeds max-header-count value in the HTTP profile , COMPRESSION_ERROR(0x09) is seen in GoAway frame instead of FRAME_SIZE_ERROR(0x06)

Conditions:
- Virtual server with HTTP2 enabled
- A http2 request has a header count that exceeds 'Maximum Header Count' in the HTTP profile (default value is 64)

Impact:
Wrong GoAway Reason is logged

1004845-2 : Accessing attribute using attributeNode value does not work with Portal Access

Component: Access Policy Manager

Symptoms:
URI normalization issue when using attributeNode to access attribute values.

Conditions:
Using attributeNode to access attribute value in web applications

Impact:
Web application does not work as expected.

Workaround:
Use custom iRule to fix this issue. There is no generic iRule for this issue, but here is a sample iRule:

XXXX is the file which usage attributeNode.

when REWRITE_REQUEST_DONE {
  if {
    [HTTP::path] ends_with "XXXX"
  } {

    # log "URI=([HTTP::path])"
    # Found the file to modify

    REWRITE::post_process 1
  }
}

when REWRITE_RESPONSE_DONE {
  set strt [string first {<script>try} [REWRITE::payload]]

  if {$strt > 0} {
    REWRITE::payload replace $strt 0 {
      <script>
        (function (){
         var old_F5_Inflate_value = F5_Inflate_value;
         F5_Inflate_value = function (o,sw,incr,v) {
            if (o && o.ownerDocument) {
                if (o.name == 'action') {
                  if (o.ownerElement) {
                    F5_Inflate_action(o.ownerElement,incr,v);
                  }
                }
            }
            return old_F5_Inflate_value.apply(this,arguments)
         }
        })();
      </script>
    }
  }
}

1004609-4 : SSL forward proxy virtual server may set empty SSL session_id in server hello.

Component: Local Traffic Manager

Symptoms:
End user clients are unable to establish a TLS connection. Further investigation indicates that the Session ID length field is set to 0, but there is no session ID.

   TLSv1.2 Record Layer: Handshake Protocol: Server Hello
           Content Type: Handshake (22)
           Version: TLS 1.2 (0x0303)
           Length: 59
           Handshake Protocol: Server Hello
               Handshake Type: Server Hello (2)
               Length: 55
               Version: Version: TLS 1.2 (0x0303)
               Random: aa957f92a5de4cedcf9750b60b3efab6b345da6c32189e93…
               Session ID Length: 0 <=== !!!
   .....
   TLSv1.2 Record Layer: Change Cipher Spec Protocol: Change Cipher Spec
   .....
   TLSv1.2 Record Layer: Handshake Protocol: Encrypted Handshake Message
   .....

Conditions:
-- SSL forward proxy virtual server.
-- This can occur intermittently with normal HTTPS traffic. It occurs more frequently if the session cache's cache-timeout value is set to a low value.

Impact:
After receiving the invalid server hello message from the BIG-IP system, the client may generate unexpected_message (10) TLS alerts and the client may terminate SSL connection.

Workaround:
None

1004469-2 : SNMP OID ltmSipsessionProfileStatVsName and ltmSiprouterProfileStatVsName returns empty string

Component: TMOS

Symptoms:
SNMP polling fails for ltmSipsessionProfileStatVsName and ltmSiprouterProfileStatVsName.

Conditions:
Run the snmpwalk for ltmSipsessionProfileStatVsName :

[root@d1:Active:Standalone] tmp # snmpwalk -c public localhost ltmSipsessionProfileStatVsName
F5-BIGIP-LOCAL-MIB::ltmSipsessionProfileStatVsName."/Common/test-sip"."" = STRING:
F5-BIGIP-LOCAL-MIB::ltmSipsessionProfileStatVsName."/Common/sipsession"."" = STRING:
F5-BIGIP-LOCAL-MIB::ltmSipsessionProfileStatVsName."/Common/sipsession-alg"."" = STRING:

----------
Run the snmpwalk for ltmSiprouterProfileStatTable

[root@ltm1:Active:Standalone] config # snmpwalk -c public localhost ltmSiprouterProfileStatTable
F5-BIGIP-LOCAL-MIB::ltmSiprouterProfileStatName."/Common/siprouter"."" = STRING: /Common/siprouter
F5-BIGIP-LOCAL-MIB::ltmSiprouterProfileStatName."/Common/siprouter-alg"."" = STRING: /Common/siprouter-alg
F5-BIGIP-LOCAL-MIB::ltmSiprouterProfileStatVsName."/Common/siprouter"."" = STRING:
F5-BIGIP-LOCAL-MIB::ltmSiprouterProfileStatVsName."/Common/siprouter-alg"."" = STRING:
F5-BIGIP-LOCAL-MIB::ltmSiprouterProfileStatTotMessgesIn."/Common/siprouter"."" = Counter64: 0
F5-BIGIP-LOCAL-MIB::ltmSiprouterProfileStatTotMessgesIn."/Common/siprouter-alg"."" = Counter64: 0
F5-BIGIP-LOCAL-MIB::ltmSiprouterProfileStatTotMessagesInRetry."/Common/siprouter"."" = Counter64: 0
F5-BIGIP-LOCAL-MIB::ltmSiprouterProfileStatTotMessagesInRetry."/Common/siprouter-alg"."" = Counter64: 0

Impact:
Returns empty. Cannot extract the virtual server name of a SIP session and SIP router profile through SNMP.

Workaround:
None

1004445-4 : Warning not generated when maximum prefix limit is exceeded.

Component: Local Traffic Manager

Symptoms:
No warnings are given when the maximum prefix limit is exceeded.

Conditions:
BGP neighbor has a maximum-prefix warning configured

Impact:
If the limit is exceeded, no warnings are given. This can cause unexpected behavior.

Workaround:
None

1004317-2 : Csyncd removes files and directories under /config/zebos, /var/named/config/namedb, etc.

Component: Local Traffic Manager

Symptoms:
The csyncd operation fails to publish its manifest to another blade in the cluster.

Conditions:
Create some files and directories in /config/zebos or /var/named/config/namedb on the primary in multi-blade VIPRION or multi-blade vCMP guest.

Impact:
-- The named and zrd processes start failing on secondary blades.
-- If the /config/zebos directory is removed from the secondaries and one of the blades becomes primary tmm might fail to start.
-- This might affect directories other than /config/zebos and /var/named/config/namedb.

Workaround:
The following manual operation can be performed if this occurs:

# Stop all affected daemons
bigstart stop csyncd
bigstart stop named
bigstart stop tmrouted

# rsync zone and zebos files from primary to secondary
rsync -arvzAXI primary:/config/zebos /config/zebos
rsync -arvzAXI primary:/var/named/config/namedb /var/named/config/namedb

# Wait until the files have been copied

# Start all affected daemons
bigstart start csyncd
bigstart start named
bigstart start tmrouted

1004077-2 : When configuring from VPE, audit logs from mcp records the user as admin, even if done by another user

Component: Access Policy Manager

Symptoms:
When making changes via the visual policy editor (VPE), audit logs from mcp records the user as admin, even if the change was made by a non-admin user.

Conditions:
Non-admin users make changes from VPE.

Impact:
Audit logs records user as admin for some transactions VPE to mcp transactions.

Workaround:
None

1004069-1 : Brute force attack is detected too soon

Component: Application Security Manager

Symptoms:
A Brute force attack is detected too soon.

Conditions:
The login page has the expected header validation criteria.

Impact:
The attack is detected earlier than the setpoint.

Workaround:
N/A

1003765-1 : Authorization header signature triggered even when explicitly disabled

Component: Application Security Manager

Symptoms:
Requests with base64 encoded Authorization header with disabled signatures might result in a blocking page even though the specific signature is disabled.

Conditions:
Base64 encoded Authorization header is included in the request.

Impact:
A signature violation is detected, even though the signature is disabled.

Workaround:
None

1003633-3 : There might be wrong memory handling when message routing feature is used

Component: Service Provider

Symptoms:
The following log is observed from /var/log/ltm
Oops @ 0x28c3060:232: buf->ref == 0

Conditions:
Message routing is used either by
- Generic message (ltm message-routing generic) or
- HTTP2 with Message router option enabled

Impact:
For most cases, this kind of incorrect memory handling may only generate warning log message. In rare case, it might lead to a tmm crash.

Workaround:
N/A

1003469-2 : The BIG-IP GUI fails to reset the statistics for an IPv6 pool member and returns an error.

Component: TMOS

Symptoms:
When trying to reset the statistics for an IPv6 pool member using the GUI, the operation fails and the system returns one of the following errors (depending on the software version in use):

01030010:3: eXtremeDB - search operation failed

Unable to complete request

Conditions:
This issue occurs when you attempt to use the BIG-IP GUI to:

-- Reset the statistics of one or more IPv6 pool members you have selected individually.

-- Reset the statistics of all pools by using the 'Select All' checkbox (provided the system contains IPv6 pool members).

Impact:
Inability to reset the statistics using the GUI.

Workaround:
You can use the tmsh utility to reset the pool member's statistics from the CLI. Example command:

tmsh reset-stats ltm pool my-pool members { 2001:DB8::1.80 }

1003397-1 : DoS TCP SYN-ACK vector with 'suspicious' set to true impacts MD5 AUTH (BGP) functionality

Component: Advanced Firewall Manager

Symptoms:
Using device DoS with TCP SYN ACK Flood vector enabled and 'Only Count Suspicious Events' option enabled breaks connections using TCP MD5 AUTH, including BGP.

Conditions:
Device DoS with TCP SYN ACK Flood vector enabled and 'Only Count Suspicious Events' option enabled

Impact:
BGP peering is not established/connections failing.

Workaround:
Disable the 'Only Count Suspicious Events' option.

1003377-1 : Disabling DoS TCP SYN-ACK does not clear suspicious event count option

Component: Advanced Firewall Manager

Symptoms:
When the 'Only Count Suspicious Events' option is turned on for the TCP SYN ACK Flood vector and the vector gets disabled, TMM continues operating as if 'Only Count Suspicious Events' is still configured.

Conditions:
Disabling TCP SYN ACK Flood vector with 'Only Count Suspicious Events' enabled.

Impact:
BIG-IP system might continue altering TCP initial sequence numbers for SYN-ACK cookie validations.

Workaround:
Disable the 'Only Count Suspicious Events' option first, and then disable TCP SYN ACK Flood vector.

1003257-4 : ZebOS 'set ipv6 next-hop' and 'set ipv6 next-hop local' do not work as expected

Component: TMOS

Symptoms:
ZebOS 'set ipv6 next-hop' and 'set ipv6 next-hop local' commands are not working properly. The address is always set to interface-configured global/local addresses respectively.

Conditions:
Using BGPv4 with IPv6 capability extension and a route-map with 'set ipv6 next-hop' and/or 'set ipv6 next-hop local' configuration.

Impact:
Wrong next-hop is advertised.

Workaround:
None.

1003081-2 : GRE/TB-encapsulated fragments are not forwarded.

Component: TMOS

Symptoms:
IP fragments that arrive over a GRE/TB tunnel are not reassembled, and are not forwarded through the BIG-IP system.

Conditions:
This occurs if all of the following conditions are true:

-- BIG-IP system with more than one TMM instance running.
-- Running a version or Engineering Hotfix that contains a fix for ID997541 (https://cdn.f5.com/product/bugtracker/ID997541.html).
-- GRE Round Robin DAG (the DB variable dag.roundrobin.gre) is enabled.
-- IP fragments arrive over GRE tunnel.

Impact:
BIG-IP system fails to process fragmented IP datagrams.

Workaround:
None

1002945-2 : Some connections are dropped on chained IPv6 to IPv4 virtual servers.

Component: Local Traffic Manager

Symptoms:
IPv6 virtual servers targeting IPv4 virtual servers (for example, using the 'virtual' iRule command) might drop traffic coming from some clients unexpectedly.

Conditions:
- IPv6 to IPv4 virtual server chaining.

Impact:
Traffic is dropped.

Workaround:
None

1002809-1 : OSPF vertex-threshold should be at least 100

Component: TMOS

Symptoms:
OSPF vertex-threshold should be at least 100, but you are able to set it to any number between 0 and 10000000.

Conditions:
-- Using OSPFv2/OSPFv3
-- Configuring the vertex-threshold setting

Impact:
When the setting is less than the default of 100, routes may not be installed properly.

Workaround:
Ensure that vertex-threshold is set to 100 (default) or above.

1002557-2 : Tcl free object list growth

Component: Access Policy Manager

Symptoms:
Apmd memory usage grows over time when a single agent with a Tcl object is shared across multiple threads.

Conditions:
This is encountered in APM environments when passing traffic.

Impact:
Tcl free object list grows and apmd memory usage increases over time.

Workaround:
None

1002417-1 : Switch L2 forwarding entries learnt on multi-blade trunk in one blade needs to be synchronized to other blades of that trunk

Component: TMOS

Symptoms:
In a chassis, when the switch needs to forward a packet where the destination MAC address does not exist in the L2 forwarding table (DLF, destination lookup failure), the packet is forwarded to blade one and flooded there. This can lead to interfaces on blade one being more heavily used.

Conditions:
Altering of trunk vlan memberships after failovers will lead to traffic imbalance on egress ports.

Impact:
It may lead to an out of bandwidth condition on interfaces.

1002413-1 : Websso puts quotation marks around non-string claim type 'custom' values

Component: Access Policy Manager

Symptoms:
When you define a claim to use with OAuth bearer SSO, and the claim-type setting is set to custom, the claim value is treated as a string and encapsulated in quotation marks.

Conditions:
-- OAuth bearer SSO is configured.
-- The OAuth claim value being used is of type 'custom'.

Impact:
The claim value is encapsulated in quotation marks and processed as a string and OAuth does not work properly.

Workaround:
None

1002345-2 : Transparent DNS monitor does not work after upgrade★

Component: In-tmm monitors

Symptoms:
DNS Pool state changes from up to down following an upgrade.

Conditions:
A transparent DNS monitor is configured to use the loopback address.

Impact:
The DNS pool is marked down.

Workaround:
None

1001337-1 : Cannot read single sign-on configuration from GUI when logged in as guest

Component: Access Policy Manager

Symptoms:
When logging in to the BIG-IP GUI and attempting to read an existing single sign-on configuration from Access :: Single Sign-On, you see the following error from GUI.

General database error retrieving information.

Conditions:
-- The logged in BIG-IP user account is configured with the guest role.
-- Go to Access :: Single Sign-On to read existing SSO configurations.

Impact:
Cannot read SSO configurations from the GUI when logged on as guest.

Workaround:
Use tmsh commands to read SSO configuration.

1001129-3 : Maximum Login Failures lockout for root and admin

Component: TMOS

Symptoms:
The root/admin account does not lock out when multiple login failures occur.

Conditions:
Local accounts such as root and admin occur multiple login failures.

Impact:
The root or admin account is not locked out. Other accounts are locked out after multiple login failures.

Workaround:
None

1001101-3 : Cannot update/display GTM/DNS listener route advertisement correctly

Component: Global Traffic Manager (DNS)

Symptoms:
Not able to update/display GTM/DNS listener route advertisement correctly.

Conditions:
Operating from the GUI GTM/DNS listener page.

Impact:
Not able to manage route advertisement from GUI GTM listener page.

Workaround:
Instead of GTM/DNS GUI, use LTM virtual address operations to manage GTM/DNS listener route advertisement.

1001069-3 : VE CPU higher after upgrade, given same throughput

Component: TMOS

Symptoms:
Significant increase in CPU usage post-upgrade.

Conditions:
-- Upgrading from v13.x to a later version.
-- Configured BIG-IP Virtual Edition (VE) that uses the sock driver.

Impact:
Significant increase in CPU usage, leading to potential degradation or disruption of traffic.

Workaround:
Create the following overrides:
-- In '/config/tmm_init.tcl' add or append the following:
ndal mtu 1500 1137:0043
device driver vendor_dev 1137:0043 xnet

-- In '/config/xnet_init.tcl' add or append the following
device driver vendor_dev 1137:0043 dpdk

Note: These overrides must be re-applied every time an upgrade is done.

1000561-3 : Chunk size incorrectly passed to client-side

Component: Local Traffic Manager

Symptoms:
HTTP/2 Virtual Servers pass the chunk size bytes from the server-side (HTTP/1.1) to the client-side (HTTP/2) when OneConnect and request-logging profiles are applied.

Conditions:
-- BIG-IP hardware platform
-- BIG-IP configured with a HTTP/2 virtual server - context client-side with OneConnect and request-logging profile
-- The server sends a chunked response

Impact:
The server-side response is chunked but the chunk size header is passed to the client-side when it should not be.

Workaround:
Change HTTP response-chunking to 'unchunk'.

1000325-2 : UCS load with 'reset-trust' may not work properly if base configuration fails to load★

Component: TMOS

Symptoms:
When loading a UCS archive using the 'reset-trust' option, if the system fails to load the base configuration from the UCS archive, the system may fail to regenerate new device trust certificates and keys.

This can result in subsequent issues, including configuration load failures after an upgrade, such as:

01070712:3: Values (/Common/dtca.key) specified for trust domain (/Common/Root): foreign key index (key_fk) do not point at an item that exists in the database.
Unexpected Error: Loading configuration process failed.

Conditions:
-- Loading a UCS file using the 'reset-trust' option.
-- The system fails to load the base configuration (bigip_base.conf) in the UCS archive for any reason.
-- The base configuration is corrected, and subsequently loaded (e.g., with 'tmsh load sys config').

Impact:
-- The system does not regenerate critical device trust keys and certificates.
-- After a subsequent upgrade, the BIG-IP system goes to INOPERATIVE state, and reports this error:

01070712:3: Values (/Common/dtca.key) specified for trust domain (/Common/Root): foreign key index (key_fk) do not point at an item that exists in the database.
Unexpected Error: Loading configuration process failed.

Workaround:
Remove trust-domain from the bigip_base.conf file and reload the configuration.

1000069-1 : Virtual server does not create the listener

Component: Local Traffic Manager

Symptoms:
A virtual-address is in an offline state.

Conditions:
An address-list is used on a virtual server in a non-default route domain.

Impact:
The virtual IP address remains in an offline state.

Workaround:
Using tmsh, create the traffic-matching-criteria. Specify the route domain, and attach it to the virtual server.

★ This issue may cause the configuration to fail to load or may significantly impact system performance after upgrade

*********************** NOTICE ***********************

For additional support resources and technical documentation, see:

The F5 Networks Technical Support web site: http://www.f5.com/support/
The AskF5 web site: https://support.f5.com/csp/#/home
The F5 DevCentral web site: http://devcentral.f5.com/

******************************************************

Subscriptions

Product Usage

Trials

Registration Keys

Downloads

Applies To:

BIG-IP AAM

BIG-IP APM

BIG-IP Link Controller

BIG-IP Analytics

BIG-IP LTM

BIG-IP AFM

BIG-IP PEM

BIG-IP DNS

BIG-IP FPS

BIG-IP ASM

Cumulative fix details for BIG-IP v15.1.4 that are included in this release

999317-8 : Running Diagnostics report for Edge Client on Windows does not follow best practice

998221-3 : Accessing pool members from configuration utility is slow with large config

998085-1 : BIG-IP DataSafe GUI does not save changes

997929-3 : Changing a Traffic Matching Criteria port from 'any' to another value can prevent a virtual server from processing traffic

997641 : APM policy ending with redirection results in policy execution failure

996753-2 : ASM BD process may crash while processing HTML traffic

996593-2 : Password change through REST or GUI not allowed if the password is expired

996381-3 : ASM attack signature may not match as expected

996113-1 : SIP messages with unbalanced escaped quotes in headers are dropped

995853-2 : Mixing IPv4 and IPv6 device IPs on GSLB server object results in nullGeneral database error.

995629-3 : Loading UCS files may hang if ASM is provisioned★

995029-3 : Configuration is not updated during auto-discovery

994985-2 : CGNAT GUI shows blank page when applying SIP profile

994801-3 : SCP file transfer system

993913-2 : TMM SIGSEGV core in Message Routing Framework

993489-3 : GTM daemon leaks memory when reading GTM link objects

992865 : Virtual server may not enter hardware SYN cookie mode on BIG-IP i11000 and i15000 series appliances

992213-2 : Protocol Any displayed as HOPTOPT in AFM policy view

990849-2 : Loading UCS with platform-migrate option hangs and requires exiting from the command★

990333-5 : APM may return unexpected content when processing HTTP requests

989753-2 : In HA setup, standby fails to establish connection to server

989317-12 : Windows Edge Client does not follow best practice

989009-3 : BD daemon may crash while processing WebSocket traffic

988793 : SecureVault on BIG-IP tenant does not store unit key securely

988761-1 : Cannot create Protected Object in GUI

988645 : Traffic may be affected after tmm is aborted and restarted

988005-1 : Zero active rules counters in GUI

987637-2 : DDoS: Single endpoint flood vectors and Bad destination not supported properly on Neuron hardware

987605-2 : DDoS: ICMP attacks are not hardware-mitigated

987113-1 : CMP state degraded while under heavy traffic

986937-1 : Cannot create child policy when the signature staging setting is not equal in template and parent policy

985537-1 : Upgrade Microsoft Hyper-V driver★

984765-1 : APM NTLM auth fails every week with RPC return code 0xC0000022(STATUS_ACCESS_DENIED)★

984613-11 : CVE-2020-5896 - Edge Client Installer Vulnerability

982869-1 : With auto-init enabled for Message Routing peers, tmm crashes with floating point exception when tmm_total_active_npus value is 0

981785-3 : Incorrect incident severity in Event Correlation statistics

981461-4 : Unspecified DNS responses cause TMM crash

981385-3 : AVRD does not send HTTP events to BIG-IQ DCD

981273-2 : APM webtop hardening

981169-2 : F5 TMUI XSS vulnerability CVE-2021-22994

981069-1 : Reset cause: "Internal error ( requested abort (payload release error))"

980821-2 : Traffic is processed by All Port Virtual Server instead of Specific Virtual Server that is configured.

980809-2 : ASM REST Signature Rule Keywords Tool Hardening

980325-5 : Chmand core due to memory leak from dossier requests.

980125-3 : BD Daemon may crash while processing WebSocket traffic

977053-2 : TMM crash on standby due to invalid MR router instance

977005-1 : Network Firewall Policy rules-list showing incorrect 'Any' for source column

976925-2 : BIG-IP APM VPN vulnerability CVE-2021-23002

976505-2 : Rotated restnoded logs will fail logintegrity verification.

976501-2 : Failed to establish VPN connection

976365 : Traffic Classification hardening★

975809-1 : Rotated restjavad logs fail logintegrity verification.

975465-2 : TMM may consume excessive resources while processing DNS iRules

975233-2 : Advanced WAF/ASM buffer-overflow vulnerability CVE-2021-22992

974881-2 : Tmm crash with SNAT iRule configured with few supported/unsupported events with diameter traffic

974501-1 : Excessive memory usage by mirroring subsystem when remirroring

974241-1 : Creation of access policy with modern customization may lead to failover in a VIPRION or vCMP guest with multiple blades

974205-3 : Unconstrained wr_urldbd size causing box to OOM

973333-5 : TMM buffer-overflow vulnerability CVE-2021-22991

973261-2 : GTM HTTPS monitor w/ SSL cert fails to open connections to monitored objects

973201-2 : F5OS BIG-IP tenants allow OS upgrade to unsupported TMOS versions★

971297-2 : DNSKEYS Type changed from external to internal and Keys are not stored in HSM after upgrade★

970829-5 : iSeries LCD incorrectly displays secure mode