CVE-2022-20792

Name	CVE-2022-20792
Description	A vulnerability in the regex module used by the signature database load module of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an authenticated, local attacker to crash ClamAV at database load time, and possibly gain code execution. The vulnerability is due to improper bounds checking that may result in a multi-byte heap buffer overwflow write. An attacker could exploit this vulnerability by placing a crafted CDB ClamAV signature database file in the ClamAV database directory. An exploit could allow the attacker to run code as the clamav user.
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-3042-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
clamav (PTS)	buster	0.103.6+dfsg-0+deb10u1	fixed
	buster (security)	0.103.9+dfsg-0+deb10u1	fixed
	bullseye	0.103.10+dfsg-0+deb11u1	fixed
	bookworm	1.0.3+dfsg-1~deb12u1	fixed
	trixie	1.0.5+dfsg-1	fixed
	sid	1.0.5+dfsg-1.1	fixed

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

Package	Type	Release	Fixed Version	Origin
clamav	source	stretch	0.103.6+dfsg-0+deb9u1	DLA-3042-1
clamav	source	buster	0.103.6+dfsg-0+deb10u1
clamav	source	bullseye	0.103.6+dfsg-0+deb11u1
clamav	source	(unstable)	0.103.6+dfsg-1

https://blog.clamav.net/2022/05/clamav-01050-01043-01036-released.html