Bug ID 489451: TMM might panic due to OpenSSL failure during handshake generation

Last Modified: Aug 19, 2026

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

Known Affected Versions:
11.5.1, 11.5.1 hf1, 11.5.1 hf2, 11.5.1 hf3, 11.5.1 hf4, 11.5.1 hf5, 11.5.1 hf6, 11.5.1 hf7, 11.5.1 hf8, 11.5.1 hf9, 11.5.1 hf10, 11.5.1 hf11, 11.5.2, 11.5.2 hf1, 11.5.3, 11.5.3 hf1, 11.5.3 hf2, 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

Fixed In:
12.0.0, 11.6.1, 11.5.4

Opened: Nov 07, 2014

Severity: 2-Critical

Related Article: K17278

Symptoms

TMM might panic due to OpenSSL failure during handshake generation.

Impact

TMM outage.

Conditions

Low memory. Software-based SSL handshake generation.

Workaround

None

Fix Information

The system now checks for OpenSSL failures during SSL handshake generation, so TMM no longer panics.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips