CVE-2022-24786

Name	CVE-2022-24786
Description	PJSIP is a free and open source multimedia communication library written in C. PJSIP versions 2.12 and prior do not parse incoming RTCP feedback RPSI (Reference Picture Selection Indication) packet, but any app that directly uses pjmedia_rtcp_fb_parse_rpsi() will be affected. A patch is available in 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 code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
asterisk (PTS)	stretch	1:13.14.1~dfsg-2+deb9u4	vulnerable
	stretch (security)	1:13.14.1~dfsg-2+deb9u6	vulnerable
	buster	1:16.2.1~dfsg-1+deb10u2	vulnerable
	bullseye	1:16.16.1~dfsg-1	vulnerable
	bullseye (security)	1:16.16.1~dfsg-1+deb11u1	vulnerable
	bookworm, sid	1:18.12.0~dfsg+~cs6.12.40431413-1	vulnerable
pjproject (PTS)	stretch	2.5.5~dfsg-6+deb9u1	vulnerable
	stretch (security)	2.5.5~dfsg-6+deb9u4	vulnerable
ring (PTS)	stretch	20161221.2.7bd7d91~dfsg1-1	vulnerable
	stretch (security)	20161221.2.7bd7d91~dfsg1-1+deb9u1	vulnerable
	buster	20190215.1.f152c98~ds1-1+deb10u1	vulnerable
	bullseye, sid	20210112.2.b757bac~ds1-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency
asterisk	source	(unstable)	(unfixed)
pjproject	source	(unstable)	(unfixed)
ring	source	(unstable)	(unfixed)	unimportant

Notes

code is present in ring but ring only uses the pjsip code, not pjmedia
https://github.com/pjsip/pjproject/security/advisories/GHSA-vhxv-phmx-g52q
https://github.com/pjsip/pjproject/commit/11559e49e65bdf00922ad5ae28913ec6a198d508