CVE-2022-24793

NameCVE-2022-24793
DescriptionPJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that uses PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.
SourceCVE (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 PackageReleaseVersionStatus
asterisk (PTS)stretch1:13.14.1~dfsg-2+deb9u4vulnerable
stretch (security)1:13.14.1~dfsg-2+deb9u6vulnerable
buster1:16.2.1~dfsg-1+deb10u2vulnerable
bullseye1:16.16.1~dfsg-1vulnerable
bullseye (security)1:16.16.1~dfsg-1+deb11u1vulnerable
bookworm, sid1:18.12.0~dfsg+~cs6.12.40431413-1vulnerable
pjproject (PTS)stretch2.5.5~dfsg-6+deb9u1vulnerable
stretch (security)2.5.5~dfsg-6+deb9u4vulnerable
ring (PTS)stretch20161221.2.7bd7d91~dfsg1-1vulnerable
stretch (security)20161221.2.7bd7d91~dfsg1-1+deb9u1vulnerable
buster20190215.1.f152c98~ds1-1+deb10u1vulnerable
sid, bullseye20210112.2.b757bac~ds1-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
asterisksource(unstable)(unfixed)
pjprojectsource(unstable)(unfixed)
ringsource(unstable)(unfixed)

Notes

https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4
https://github.com/pjsip/pjproject/commit/9fae8f43accef8ea65d4a8ae9cdf297c46cfe29a

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