CVE-2022-20770

Name	CVE-2022-20770
Description	On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in CHM file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. This advisory will be updated as additional information becomes available.
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, ELA-622-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
clamav (PTS)	jessie, jessie (lts)	0.103.9+dfsg-0+deb8u1	fixed
	stretch (security)	0.103.6+dfsg-0+deb9u1	fixed
	stretch (lts), stretch	0.103.9+dfsg-0+deb9u1	fixed
	buster (security), buster, buster (lts)	0.103.9+dfsg-0+deb10u1	fixed
	bullseye	0.103.10+dfsg-0+deb11u1	fixed
	bookworm	1.0.7+dfsg-1~deb12u1	fixed
	sid, trixie	1.4.1+dfsg-1	fixed

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

Package	Type	Release	Fixed Version	Origin
clamav	source	jessie	0.103.6+dfsg-0+deb8u1	ELA-622-1
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