CVE-2020-27757

Name	CVE-2020-27757
Description	A floating point math calculation in ScaleAnyToQuantum() of /MagickCore/quantum-private.h could lead to undefined behavior in the form of a value outside the range of type unsigned long long. The flaw could be triggered by a crafted input file under certain conditions when it is processed by ImageMagick. Red Hat Product Security marked this as Low because although it could potentially lead to an impact to application availability, no specific impact was shown in this case. This flaw affects ImageMagick versions prior to 7.0.8-68.
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-2602-1, DLA-3357-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
imagemagick (PTS)	bullseye	8:6.9.11.60+dfsg-1.3+deb11u4	fixed
	bullseye (security)	8:6.9.11.60+dfsg-1.3+deb11u3	fixed
	bookworm	8:6.9.11.60+dfsg-1.6+deb12u2	fixed
	bookworm (security)	8:6.9.11.60+dfsg-1.6+deb12u1	fixed
	trixie	8:6.9.13.12+dfsg1-1	fixed
	sid	8:7.1.1.39+dfsg1-2	fixed

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

Package	Type	Release	Fixed Version	Origin
imagemagick	source	stretch	8:6.9.7.4+dfsg-11+deb9u12	DLA-2602-1
imagemagick	source	buster	8:6.9.10.23+dfsg-2.1+deb10u2	DLA-3357-1
imagemagick	source	(unstable)	8:6.9.11.24+dfsg-1

Notes

https://github.com/ImageMagick/ImageMagick/issues/1712
ImageMagick: https://github.com/ImageMagick/ImageMagick/commit/e88532bd4418e95b70cbc415fe911d22ab27a5fd
ImageMagick6: https://github.com/ImageMagick/ImageMagick6/commit/ded073520c133421f842160d3a9e207788f55a90