CVE-2022-29491 Null dereference in BIG-IP LTM, Advanced WAF, ASM, and APM

High 7.5 Published 5 May 2022 Updated 16 Sep 2024

Attackers can cause a denial of service by terminating the TMM process via specific requests on F5 BIG-IP devices with mixed protocol virtual servers.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-29491?

CVE-2022-29491 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager, published on 5 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

On F5 BIG-IP LTM, Advanced WAF, ASM, or APM 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5, 14.1.x versions prior to 14.1.4.6, and all versions of 13.1.x, 12.1.x, and 11.6.x, when a virtual server is configured with HTTP, TCP on one side (client/server), and DTLS on the other (server/client), undisclosed requests can cause the TMM process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Weakness: CWE-476

Which versions are affected by CVE-2022-29491?

It affects 4 products.

Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Application Security Manager, F5 Big-Ip Local Traffic Manager.

How do I fix CVE-2022-29491?

No fix has been published for CVE-2022-29491 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-29491 being exploited?

There is no known exploitation of CVE-2022-29491 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-55jm-h8m6-5gpq.