CVE-2022-31031 Potential stack buffer overflow when parsing message as a STUN client
A stack buffer overflow in PJSIP's STUN client allows attackers to execute arbitrary code or cause denial of service when STUN is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-31031?
CVE-2022-31031 is a critical memory corruption vulnerability in Debian Debian Linux, published on 7 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In versions prior to and including 2.12.1 a stack buffer overflow vulnerability affects PJSIP users that use STUN in their applications, either by: setting a STUN server in their account/media config in PJSUA/PJSUA2 level, or directly using `pjlib-util/stun_simple` API. A patch is available in commit 450baca which should be included in the next release. There are no known workarounds for this issue.
Which versions are affected by CVE-2022-31031?
It affects 2 products.
Products include Debian Debian Linux, Teluu Pjsip.
How do I fix CVE-2022-31031?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-31031 being exploited?
There is no known exploitation of CVE-2022-31031 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2022-31031, DEBIAN-CVE-2022-31031, GHSA-26j7-ww69-c4qj, UBUNTU-CVE-2022-31031.