CVE-2021-1404

NameCVE-2021-1404
DescriptionA vulnerability in the PDF parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper buffer size tracking that may result in a heap buffer over-read. An attacker could exploit this vulnerability by sending a crafted PDF file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process to crash, resulting in a denial of service condition.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs986622, 986790

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
clamav (PTS)buster0.103.6+dfsg-0+deb10u1fixed
buster (security)0.103.9+dfsg-0+deb10u1fixed
bullseye0.103.10+dfsg-0+deb11u1fixed
bookworm1.0.3+dfsg-1~deb12u1fixed
trixie1.0.5+dfsg-1fixed
sid1.0.5+dfsg-1.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
clamavsourcestretch(not affected)
clamavsourcebuster(not affected)
clamavsource(unstable)0.103.2+dfsg-1986622, 986790

Notes

[buster] - clamav <not-affected> (Affects only 0.103.0 and 0.103.1)
[stretch] - clamav <not-affected> (Affects only 0.103.0 and 0.103.1)
https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html

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