Bug ID 978833: Use of CRL-based Certificate Monitoring Causes Memory Leak

Last Modified: Sep 13, 2023

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

Known Affected Versions:
14.0.1, 14.0.1.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2

Fixed In:
16.1.0, 15.1.4.1, 14.1.4.4

Opened: Jan 05, 2021

Severity: 3-Major

Symptoms

TMM memory use increases and the aggressive mode sweeper activates.

Impact

TMM ssl and ssl_compat memory usage grows over time, eventually causing memory pressure, and potentially a traffic outage due to TMM restart.

Conditions

CRL certificate validator is configured.

Workaround

None.

Fix Information

Use of CRL-based certificate monitoring no longer causes memory leak.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips