Bug ID 742627: SSL session mirroring may cause memory leakage if HA channel is down

Last Modified: Jul 12, 2023

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,, 14.0.0,,,,

Fixed In:

Opened: Sep 04, 2018

Severity: 2-Critical


If SSL session mirroring is enabled, but the HA channel is down, attempts to mirror may result in memory leakage.


Memory leakage over time resulting in eventual memory pressure leading to performance degradation and possible TMOS restart.


- SSL session mirroring enabled - HA channel is down


Ensuring that the HA peer is present and connected will avoid the leakage. Otherwise, no reasonable workaround exists short of disabling SSL session mirroring.

Fix Information

SSL session mirroring no longer leaks memory when the HA channel is down.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips