CVE-2021-20243

NameCVE-2021-20243
DescriptionA flaw was found in ImageMagick in MagickCore/resize.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. The highest threat from this vulnerability is to system availability.
SourceCVE (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)
ReferencesDLA-2672-1
Debian Bugs1013282

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
imagemagick (PTS)buster, buster (security)8:6.9.10.23+dfsg-2.1+deb10u1vulnerable
bookworm, sid, bullseye8:6.9.11.60+dfsg-1.3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
imagemagicksourceexperimental8:6.9.12.20+dfsg1-1
imagemagicksourcestretch8:6.9.7.4+dfsg-11+deb9u13DLA-2672-1
imagemagicksource(unstable)(unfixed)1013282

Notes

[bullseye] - imagemagick <ignored> (Minor issue)
[buster] - imagemagick <ignored> (Minor issue)
https://github.com/ImageMagick/ImageMagick/pull/3193
ImageMagick: https://github.com/ImageMagick/ImageMagick/commit/9751bd619872c8e58609fbed56c4827afa083b40
ImageMagick6: https://github.com/ImageMagick/ImageMagick6/commit/53cb91b3e7bf95d0e372cbc745e0055ac6054745 (resize.c hunk)

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