CVE-2021-20312

Name	CVE-2021-20312
Description	A flaw was found in ImageMagick in versions 7.0.11, where an integer overflow in WriteTHUMBNAILImage of coders/thumbnail.c may trigger undefined behavior via a crafted image file that is submitted by an attacker and processed by an application using ImageMagick. The highest threat from this vulnerability is to system availability.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-2672-1
Debian Bugs	1013282

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
imagemagick (PTS)	buster, buster (security)	8:6.9.10.23+dfsg-2.1+deb10u1	vulnerable
	bookworm, sid, bullseye	8:6.9.11.60+dfsg-1.3	vulnerable

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
imagemagick	source	experimental	8:6.9.12.20+dfsg1-1
imagemagick	source	stretch	8:6.9.7.4+dfsg-11+deb9u13	DLA-2672-1
imagemagick	source	(unstable)	(unfixed)		1013282

Notes

[bullseye] - imagemagick <ignored> (Minor issue)
[buster] - imagemagick <ignored> (Minor issue)
https://github.com/ImageMagick/ImageMagick/commit/70aa86f5d5d8aa605a918ed51f7574f433a18482
https://github.com/ImageMagick/ImageMagick6/commit/e53e24b078f7fa586f9cc910491b8910f5bdad2e