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CVE-2020-27761

Published: 03 December 2020

WritePALMImage() in /coders/palm.c used size_t casts in several areas of a calculation which could lead to values outside the range of representable type `unsigned long` undefined behavior when a crafted input file was processed by ImageMagick. The patch casts to `ssize_t` instead to avoid this issue. Red Hat Product Security marked the Severity 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 ImageMagick 7.0.9-0.

Priority

Low

CVSS 3 base score: 3.3

Status

Package Release Status
imagemagick
Launchpad, Ubuntu, Debian
Upstream
Released (8:6.9.11.24+dfsg-1)
Ubuntu 21.10 (Impish Indri) Not vulnerable
(8:6.9.11.60+dfsg-1ubuntu1)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(8:6.9.11.60+dfsg-1ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (8:6.9.10.23+dfsg-2.1ubuntu11.4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (8:6.9.7.4+dfsg-16ubuntu6.11)
Ubuntu 16.04 ESM (Xenial Xerus) Needs triage

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://github.com/ImageMagick/ImageMagick6/commit/14c90fb315eb3666a4cf6d784cbde74c69c934ec