title: F5 AFM Signature Matching Vulnerability
description:
For unspecified traffic patterns, BIG-IP AFM IPS engine may spend an excessive amount of time matching the traffic against signatures, resulting in Traffic Management Microkernel (TMM) restarting and traffic disruption.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
problem types: CWE-770 Allocation of Resources Without Limits or Throttling
affected:
{
defaultStatus: unknown
modules: [AFM, IPS]
product: BIG-IP
vendor: F5
versions:
lessThan: 17.1.1, status: affected, version: 17.1.0, versionType: custom
lessThan: 16.1.4, status: affected, version: 16.1.0, versionType: custom
lessThan: 15.1.9, status: affected, version: 15.1.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL