Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP ASM
Known Affected Versions:
11.2.1, 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, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8
Fixed In:
12.1.0, 12.0.0 HF1, 11.6.1, 11.5.4, 11.4.1 HF10, 10.2.4 HF13
Opened: Oct 13, 2015 Severity: 2-Critical Related Article:
K61834804
The signature configuration is not building up upon adding new signatures. This can look like a configuration change is not finishing, or if it does, it may result in crashes when the Enforcer starts up resulting in constant startups.
Configuration change doesn't finish or crashes in the ASM startup (which results in constant startups of the system).
Too many signatures are configured with custom signatures. The exact number varies (depending on the signature) but hundreds of signatures may be enough to trigger it.
Workarounds are possible only in a custom signature scenario, only using fewer signatures or by removing unused signatures.
Fixed a limitation in the attack signature engine.