Bug ID 759724: TMM can crash when handling MRF SIP traffic.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Fixed In:
11.6.5.2, 11.6.5.1

Opened: Feb 26, 2019

Severity: 2-Critical

Symptoms

TMM crashes with a SIGSEGV signal and produces a core file.

Impact

Traffic disrupted while TMM restarts.

Conditions

This issue is known to occur when a BIG-IP system is configured with a MRF SIP virtual server that makes use of a complex iRule to manipulate traffic.

Workaround

None.

Fix Information

Changes to TMM in regards to how entries progress through the SIP state machine have resolved the crash condition.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips