Last Modified: Jul 18, 2026
Affected Product(s):
BIG-IP ASM
Known Affected Versions:
11.5.3, 11.5.3 hf1, 11.5.3 hf2, 11.5.4, 11.5.4 hf1, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10
Fixed In:
12.0.0
Opened: May 19, 2015 Severity: 3-Major
Adding multiple ASM signatures concurrently in REST actions causes deadlock.
Some signature REST add actions will fail due to deadlock.
Multiple ASM signatures are added concurrently using REST.
Wait until signature add action has completed in REST before issuing the next add.
Multiple signatures can be added concurrently using REST.