PJSIP is a free and open source multimedia communication library written in C. A denial-of-service vulnerability affects applications on a 32-bit systems that use PJSIP versions 2.12 and prior to play/read invalid WAV files. The vulnerability occurs when reading WAV file data chunks with length greater than 31-bit integers. The vulnerability does not affect 64-bit apps and should not affect apps that only plays trusted WAV files. A patch is available on the `master` branch of the `pjsip/project` GitHub repository. As a workaround, apps can reject a WAV file received from an unknown source or validate the file first.
https://github.com/pjsip/pjproject/commit/947bc1ee6d05be10204b918df75a503415fd3213
https://github.com/pjsip/pjproject/security/advisories/GHSA-rwgw-vwxg-q799
https://lists.debian.org/debian-lts-announce/2022/05/msg00047.html
https://security.gentoo.org/glsa/202210-37
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
Source: MITRE
Published: 2022-04-25
Updated: 2022-12-06
Type: CWE-835
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH