CVE-2020-27758

NameCVE-2020-27758
DescriptionA flaw was found in ImageMagick in coders/txt.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type `unsigned long long`. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to 7.0.8-68.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
imagemagick (PTS)stretch8:6.9.7.4+dfsg-11+deb9u8vulnerable
stretch (security)8:6.9.7.4+dfsg-11+deb9u11vulnerable
buster, buster (security)8:6.9.10.23+dfsg-2.1+deb10u1vulnerable
bullseye, sid8:6.9.11.60+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
imagemagicksource(unstable)8:6.9.11.24+dfsg-1

Notes

[buster] - imagemagick <ignored> (Minor issue)
[stretch] - imagemagick <ignored> (Minor issue, UBSAN outside range warning)
https://github.com/ImageMagick/ImageMagick/issues/1719
ImageMagick: https://github.com/ImageMagick/ImageMagick/commit/f0a8d407b2801174fd8923941a9e7822f7f9a506
ImageMagick6: https://github.com/ImageMagick/ImageMagick6/commit/e5e15b4456c825f78554e2ef1cc6344fa1218448

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