CVE-2021-1405

Name	CVE-2021-1405
Description	A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper variable initialization that may result in an NULL pointer read. An attacker could exploit this vulnerability by sending a crafted email to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process 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)
References	DLA-2626-1, ELA-404-1
Debian Bugs	986622, 986790

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	Debian Bugs
clamav	source	jessie	0.102.4+dfsg-0+deb8u2	ELA-404-1
clamav	source	stretch	0.102.4+dfsg-0+deb9u2	DLA-2626-1
clamav	source	buster	0.103.2+dfsg-0+deb10u1
clamav	source	(unstable)	0.103.2+dfsg-1		986622, 986790

https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html