Bug ID 537072: Fix ssl_session memory corruption when many sessions and heavy traffic.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 11.6.3,, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:

Opened: Aug 01, 2015

Severity: 2-Critical


ssl_session memory corruption might occur when there are many sessions and heavy traffic. The SSL session is freed but not removed from cache. The cache contains the freed SSL session which can cause a crash when the cache entry is removed later.


ssl_session memory corruption.


Many SSL session and heavy traffic.



Fix Information

This memory corruption issue no longer occurs.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips