Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2
Fixed In:
12.1.0
Opened: Jan 12, 2016 Severity: 2-Critical
When HTTP goes into fallback mode, and multiple iRule events are running it is possible that HTTP aborts due to unexpected state transitions. If more than one abort occurs for the same flow, it is possible that the TMM may crash.
Traffic disrupted while tmm restarts.
HTTP Fallback is triggered and outstanding iRules or other Profiles cause unexpected conditions to happen to the HTTP filter. The unexpected events happen more than once for a given flow.
None
In complex situations involving HTTP Fallback, the TMM is more robust to unexpected events occurring.