BIG-IP 16.1.x/15.1.x TLS 1.3 iRule HTTP::respond TMM Crash
CVE-2022-34651 Published on August 4, 2022
BIG-IP TLS 1.3 iRule vulnerability CVE-2022-34651
In BIG-IP Versions 16.1.x before 16.1.3.1 and 15.1.x before 15.1.6.1, when an LTM Client or Server SSL profile with TLS 1.3 enabled is configured on a virtual server, along with an iRule that calls HTTP::respond, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Vulnerability Analysis
CVE-2022-34651 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
NULL Pointer Dereference
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. NULL pointer dereference issues can occur through a number of flaws, including race conditions, and simple programming omissions.
Products Associated with CVE-2022-34651
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Affected Versions
F5 BIG-IP:- Version 13.1.0 and below 13.1.x* is unaffected.
- Version 14.1.0 and below 14.1.x* is unaffected.
- Version 15.1.x and below 15.1.6.1 is affected.
- Version 16.1.x and below 16.1.3.1 is affected.
- Version 17.0.0 and below 17.0.x* is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.