Bug ID 1605125: TMM might crash when AFM is used on the Virtual Edition of BIG-IP

Last Modified: Nov 12, 2024

Affected Product(s):
BIG-IP AFM(all modules)

Known Affected Versions:
17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4

Opened: Jul 08, 2024

Severity: 2-Critical

Symptoms

TMM might crash when AFM is used on the Virtual Edition of BIG-IP.

Impact

Traffic disrupted while tmm restarts.

Conditions

- BIG-IP virtual edition. - AFM with DoS vectors is enabled.

Workaround

Disable the "tscookie" feature within the tcp-ack-ts vector. This can be accomplished with the commands below: tmsh modify security dos device-config dos-device-config dos-device-vector { tcp-ack-ts { tscookie disabled }}

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips