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.
https://github.com/pjsip/pjproject/commit/450baca94f475345542c6953832650c390889202
https://github.com/pjsip/pjproject/security/advisories/GHSA-26j7-ww69-c4qj
https://security.gentoo.org/glsa/202210-37
https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html
Source: MITRE
Published: 2022-06-09
Updated: 2023-02-24
Type: CWE-120
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL