Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP ASM
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
Fixed In:
11.6.0, 11.5.3
Opened: Jun 23, 2014 Severity: 2-Critical
A bd restart, and failover if redundant configuration exists, may occur. The core file will show tm_untimeout () as the coring frame.
Traffic will reset while the bd restart or while the failover is happening.
-- Load on the system. -- Heavy usage of the sessiondb infrastructure.
Disable session tracking from the ASM policy.
This release fixes an Enforcer crash related to a specific error condition in the session db.