CVE-2022-20803

Name	CVE-2022-20803
Description	A vulnerability in the OLE2 file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device.The vulnerability is due to incorrect use of the realloc function that may result in a double-free. An attacker could exploit this vulnerability by submitting a crafted OLE2 file to be scanned by ClamAV on the affected device. An exploit could allow the attacker to cause the ClamAV scanning process to crash, resulting in a denial of service condition.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

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	Urgency	Origin	Debian Bugs
clamav	source	(unstable)	(not affected)

- clamav <not-affected> (Only affects 0.104.x)
https://blog.clamav.net/2022/05/clamav-01050-01043-01036-released.html