CVE-2022-4904

Name	CVE-2022-4904
Description	A flaw was found in the c-ares package. The ares_set_sortlist is missing checks about the validity of the input string, which allows a possible arbitrary length stack overflow. This issue may cause a denial of service or a limited impact on confidentiality and integrity.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3323-1
Debian Bugs	1031525

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
c-ares (PTS)	bullseye (security), bullseye	1.17.1-1+deb11u3	fixed
	bookworm	1.18.1-3	fixed
	sid, trixie	1.34.2-1	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
c-ares	source	buster	1.14.0-1+deb10u2	DLA-3323-1
c-ares	source	bullseye	1.17.1-1+deb11u2
c-ares	source	(unstable)	1.18.1-2		1031525

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2168631
https://github.com/c-ares/c-ares/pull/497
https://github.com/c-ares/c-ares/commit/9903253c347f9e0bffd285ae3829aef251cc852d (cares-1_19_0)