CVE-2022-24764

Name	CVE-2022-24764
Description	PJSIP is a free and open source multimedia communication library written in C. Versions 2.12 and prior contain a stack buffer overflow vulnerability that affects PJSUA2 users or users that call the API `pjmedia_sdp_print(), pjmedia_sdp_media_print()`. Applications that do not use PJSUA2 and do not directly call `pjmedia_sdp_print()` or `pjmedia_sdp_media_print()` should not be affected. A patch is available on the `master` branch of the `pjsip/pjproject` GitHub repository. There are currently no known workarounds.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-2962-1
Debian Bugs	1014976, 1014998

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
asterisk (PTS)	buster	1:16.2.1~dfsg-1+deb10u2	vulnerable
	bullseye (security), bullseye	1:16.16.1~dfsg-1+deb11u1	vulnerable
	bookworm, sid	1:18.14.0~~rc1~dfsg+~cs6.12.40431414-1	fixed
ring (PTS)	buster	20190215.1.f152c98~ds1-1+deb10u1	vulnerable
	sid, bullseye	20210112.2.b757bac~ds1-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
asterisk	source	stretch	(not affected)
asterisk	source	(unstable)	1:18.14.0~~rc1~dfsg+~cs6.12.40431414-1		1014976
pjproject	source	stretch	2.5.5~dfsg-6+deb9u3	DLA-2962-1
pjproject	source	(unstable)	(unfixed)
ring	source	(unstable)	(unfixed)		1014998

Notes

[stretch] - asterisk <not-affected> (Vulnerable code not present)
https://github.com/pjsip/pjproject/security/advisories/GHSA-f5qg-pqcg-765m
https://github.com/pjsip/pjproject/commit/560a1346f87aabe126509bb24930106dea292b00