PJSIP is a free and open source multimedia communication library written in the C language. Versions 2.12 and prior contain a denial-of-service vulnerability that affects PJSIP users that consume PJSIP's XML parsing in their apps. Users are advised to update. There are no known workarounds.
https://www.debian.org/security/2022/dsa-5285
https://security.gentoo.org/glsa/202210-37
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
https://lists.debian.org/debian-lts-announce/2022/05/msg00047.html
https://github.com/pjsip/pjproject/security/advisories/GHSA-5x45-qp78-g4p4
https://github.com/pjsip/pjproject/commit/856f87c2e97a27b256482dbe0d748b1194355a21