999901-1 : Certain LTM policies may not execute correctly after a system reboot or TMM restart.

Links to More Info: K68816502, BT999901

Component: Local Traffic Manager

Symptoms:
After a system reboot or TMM restart, LTM policies referencing an external data-group may not execute correctly, regardless of a successful matching condition.

This can cause a wide range of issues, including misrouted traffic, unshaped traffic, the bypassing of ASM, or complete traffic failure (based on the policy actions).

Note that if a virtual server references multiple LTM policies, and only some of those policies reference an external data-group, all LTM policies attached to the virtual server will be affected.

Conditions:
-- LTM policy with an external data-group configured on a virtual server.
-- System reboot or TMM restart.

Impact:
LTM policies may be unable to execute the appropriate action on a successful matching condition, leading to a wide range of traffic-impacting consequences.

Workaround:
Remove and re-add the affected policy to the desired virtual-server. Alternatively, to fix a wider number of affected virtual servers in one go, reload the system configuration by executing 'tmsh load sys config'.

Fix:
TMM now loads LTM policies with external data-groups as expected.

Fixed Versions:
17.0.0, 16.1.2.2, 15.1.5.1, 14.1.4.6

999881-6 : Tcl command 'string first' not working if payload contains Unicode characters.

Links to More Info: BT999881

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

Fixed Versions:
17.0.0, 16.1.3.1, 15.1.7

999125-1 : After changing management IP addresses, devices can be stuck indefinitely in improper Active/Active or Standby/Standby states.

Links to More Info: BT999125

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.

Fix:
Redundant devices remain in the correct failover state following a management IP address change.

Fixed Versions:
17.0.0, 16.1.2.2, 15.1.5.1, 14.1.4.6, 13.1.5

999097-1 : SSL::profile may select profile with outdated configuration

Links to More Info: BT999097

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 virtual server, 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.

Fix:
The system now makes sure that SSL profiles are properly reloaded after changes are made.

Fixed Versions:
17.0.0, 16.1.2.1, 15.1.5, 14.1.4.5

998221-1 : Accessing pool members from configuration utility is slow with large config

Links to More Info: BT998221

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.

Fixed Versions:
17.0.0, 16.1.2, 16.0.1.2, 15.1.4, 14.1.4.3

997313-2 : Unable to create APM policies in a sync-only folder★

Links to More Info: BT997313

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

Fixed Versions:
17.0.0, 16.1.2, 15.1.4.1

996381-1 : ASM attack signature may not match as expected

Links to More Info: K41503304, BT996381

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.

Fixed Versions:
17.0.0, 16.1.1, 16.0.1.2, 15.1.4, 14.1.4.4, 13.1.4.1

996233-1 : Tomcat may crash while processing TMUI requests

Links to More Info: K38893457, BT996233

996113-2 : SIP messages with unbalanced escaped quotes in headers are dropped

Links to More Info: BT996113

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

Fixed Versions:
17.0.0, 16.1.1, 15.1.4, 14.1.4.4, 13.1.5

996001-5 : AVR Inspection Dashboard 'Last Month' does not show all data points

Links to More Info: BT996001

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

Fix:
Viewing a 'Last Month' graph now reports ~30 days worth of data, rather than a variable amount of data based on actual calendar periods.

Fixed Versions:
17.0.0, 16.1.2.1, 15.1.5, 14.1.4.5

995405-1 : After upgrade, the copied SSL vhf/vht profile prevents traffic from passing★

Links to More Info: BT995405

Component: Local Traffic Manager

Symptoms:
After an RPM upgrade, SSL Orchestrator traffic does not pass

Conditions:
Upgrading SSL Orchestrator via RPM

Impact:
Traffic will not pass.

Workaround:
Bigstart restart tmm

Fix:
Fixed an issue that was preventing from passing after an RPM upgrade.

Fixed Versions:
17.0.0, 16.1.3, 16.1.1

994305-3 : The version of open-vm-tools included with BIG-IP Virtual Edition is 10.1.5

Links to More Info: BT994305

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.

Fix:
The version of open-vm-tools has been updated to 11.1.5.

Fixed Versions:
17.0.0, 16.1.2.1, 15.1.5.1

993981-3 : TMM may crash when ePVA is enabled

Links to More Info: K52340447, BT993981

993913-4 : TMM SIGSEGV core in Message Routing Framework

Links to More Info: BT993913

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

Fixed Versions:
17.0.0, 16.1.1, 15.1.4, 14.1.4.4

993613-7 : Device fails to request full sync

Links to More Info: BT993613

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.

Fixed Versions:
17.0.0, 16.1.2.1, 15.1.5, 14.1.4.5, 13.1.5

993517-1 : Loading an upgraded config can result in a file object error in some cases

Links to More Info: BT993517

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.

Fixed Versions:
17.0.0, 16.1.2.2, 15.1.6.1, 14.1.5

993489-1 : GTM daemon leaks memory when reading GTM link objects

Links to More Info: BT993489

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

Fixed Versions:
17.0.0, 16.1.1, 16.0.1.2, 15.1.4, 14.1.4.4, 13.1.5

993457-1 : TMM core with ACCESS::policy evaluate iRule

Links to More Info: BT993457

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

Fix:
TMM no longer crashes and generates a core file during the ACCESS::policy evaluate iRule under these conditions.

Fixed Versions:
17.0.0, 16.1.2, 15.1.4.1, 14.1.4.5

992865-3 : Virtual server may not enter hardware SYN cookie mode on BIG-IP i11000 and i15000 series appliances

Links to More Info: BT992865

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.

Fixed Versions:
17.1.0, 16.1.2.2, 15.1.4

992213-3 : Protocol Any displayed as HOPTOPT in AFM policy view

Links to More Info: BT992213

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.

Fixed Versions:
17.0.0, 16.1.1, 15.1.4, 14.1.4.2

992121-4 : REST "/mgmt/tm/services" endpoint is not accessible

Links to More Info: BT992121

Component: TMOS

Symptoms:
Accessing "/mgmt/tm/services" failed with a null exception and returned 400 response.

Conditions:
When accessing /mgmt/tm/services through REST API

Impact:
Unable to get services through REST API, BIG-IQ needs that call for monitoring.

Fix:
/mgmt/tm/services through REST API is accessible and return the services successfully.

Fixed Versions:
17.0.0, 16.1.3.1, 15.1.6.1, 14.1.5.1

992073-2 : APM NTLM Front End Authentication errors ECA_ERR_INPROGRESS

Links to More Info: K93543114, BT992073

991421-2 : TMM may crash while processing TLS traffic

Links to More Info: K91013510, BT991421

990461-5 : Per virtual server SYN cookie threshold is not preserved or converted during a software upgrade★

Links to More Info: BT990461

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.

Fixed Versions:
17.1.0, 16.1.3, 15.1.6.1, 14.1.4.4

989701-8 : CVE-2020-25212 Kernel: A flaw was found in the NFSv4 implementation where when mounting a remote attacker controlled server it could return specially crafted response

Links to More Info: K42355373, BT989701

989517-3 : Acceleration section of virtual server page not available in DHD

Links to More Info: BT989517

Component: TMOS

Symptoms:
Cannot use Advanced Menu to create a virtual server for HTTP/2 on systems with DHD licenses. This occurs because the Acceleration section is not available.

You can via TMSH then it works, but at as soon as you use the GUI to modify the virtual server, it loses the HTTP/2 configuration.

Conditions:
The Acceleration section is not visible in case 'DoS' is provisioned (available with the DHD license).

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. However, do not edit that virtual server in the GUI, or the Acceleration parameters will be lost.

Fix:
The Acceleration table is now visible, and there is no loss of configuration items if making changes via the GUI.

Fixed Versions:
17.1.0, 17.0.0.1, 16.1.3.1, 15.1.6.1

988549-10 : CVE-2020-29573: glibc vulnerability

Links to More Info: K27238230, BT988549

988165-3 : VMware CPU reservation is now enforced.

Links to More Info: BT988165

Component: TMOS

Symptoms:
CPU reservation is not enabled which can result in insufficient CPU resource for virtual edition guest.

Conditions:
BIG-IP Virtual Edition running in VMware.

Impact:
Performance may be lower than expected particularly if ESXi is over subscribed and traffic volume is high.

Workaround:
Manually enforce the 2GHz per core rule when provisioning VMware instances to ensure that your VMware hosts are not oversubscribed.

Fix:
The VMware CPU reservation of 2GHz per core is now automatically enabled in the OVF file. The CPU reservation can be up to 100 percent of the defined virtual machine hardware. For example, if the hypervisor has 2.0 GHz cores, and the VE is set to 4 cores, you will see 4 x 2.0 GHz reserved for 8GHz (or 8000 MHz).

Fixed Versions:
17.0.0, 16.1.2.2, 15.1.5.1

987885-6 : Half-open unclean SSL termination might not close the connection properly

Links to More Info: BT987885

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.

Fixed Versions:
17.0.0, 16.1.3.1, 15.1.6.1, 14.1.5.1

987341-1 : BIG-IP OpenID Connect Discovery process does not support strong TLS ciphers.

Links to More Info: BT987341

Component: Access Policy Manager

Symptoms:
BIG-IP discovers and updates JSON Web Keys (JWK) in OpenID Connect (OIDC) deployments using a Java Runtime Environment (JRE). The JRE in BIG-IP does not support strong TLS ciphers, so the discovery/update process can fail against OIDC providers that enforce strong encryption requirements.

Conditions:
Using an OpenID Connect provider that allows only strong TLS ciphers. and using an APM configuration that validates incoming JWTs against a dynamic JWK list in Internal Validation Mode.

Impact:
This might cause discovery to fail against certain OpenID Connect auth providers that enforce strong cipher requirements. It could lead to JWT validation failure as the JWK expire and cannot be updated by BIG-IP.

Workaround:
N/A

Fix:
N/A

Fixed Versions:
17.0.0, 16.1.3.1, 15.1.6.1, 14.1.5

987077-3 : TLS1.3 with client authentication handshake failure

Links to More Info: BT987077

Component: Local Traffic Manager

Symptoms:
SSL handshakes fail, and TLS clients send 'Bad Record MAC' errors.

Conditions:
-- LTM authentication profile using OCSP and TLS1.3.
-- Client application data arrives during LTM client authentication iRule.

Impact:
-- A handshake failure occurs.
-- Client certificate authentication may pass without checking its validity via OCSP.

Workaround:
Use TLS1.2 or use TLS1.3 without the LTM authentication profile.

Fix:
Handshake completes if using TLS1.3 with client authentication and LTM auth profile.

Fixed Versions:
17.0.0, 16.1.3, 15.1.5.1, 14.1.4.6

986937-3 : Cannot create child policy when the signature staging setting is not equal in template and parent policy

Links to More Info: BT986937

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.

Fixed Versions:
17.0.0, 16.1.1, 16.0.1.2, 15.1.4

985953-6 : GRE Transparent Ethernet Bridging inner MAC overwrite

Links to More Info: BT985953

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

Fix:
Added a new DB key 'iptunnel.mac_overwrite'. This DB key defaults to 'disable'.

Set the DB key to 'enable' to cause the BIG-IP system to overwrite the destination MAC of the encapsulated traffic:

tmsh modify sys db iptunnel.mac_overwrite value enable
tmsh save sys config

This allows virtual servers on the BIG-IP system to process traffic.

Behavior Change:
Added a new DB key 'iptunnel.mac_overwrite'. This DB key defaults to 'disable'.

To cause the BIG-IP system to overwrite the destination MAC of the encapsulated traffic, set the DB key to 'enable' and save the config:

tmsh modify sys db iptunnel.mac_overwrite value enable
tmsh save sys config

This allows virtual servers on the BIG-IP system to process traffic.

Fixed Versions:
17.0.0, 16.1.2, 15.1.4.1, 14.1.4.5, 13.1.5