Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.5, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2
Fixed In:
13.0.0, 12.1.2 HF1, 11.6.2, 11.5.6
Opened: Jun 23, 2016 Severity: 2-Critical
When SSL is configured, the TMM might rarely crash, logging the following error in /var/log/ltm: notice panic: ../modules/hudfilter/ssl/ssl_session.c:538: Assertion "cached" failed.
Traffic disrupted while TMM restarts, and failover occurs if high availability is configured. Mirroring and LB may be lost with renegotiation for certain types of traffic.
No conditions to be set, however this is a very rare occurrence in which a random number generator can technically generate the number Zero ( 0 ) which would trigger this.
None.
When SSL is configured, the TMM no longer intermittently crashes with the message: Assertion "cached" failed.