Description
The ReadWPGImage function in coders/wpg.c in GraphicsMagick 1.3.26 does not properly validate colormapped images, which allows remote attackers to cause a denial of service (ImportIndexQuantumType invalid write and application crash) or possibly have unspecified other impact via a malformed WPG image.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://hg.code.sf.net/p/graphicsmagick/code/rev/e8086faa52d0 ↗
- https://www.debian.org/security/2018/dsa-4321 ↗
- https://lists.debian.org/debian-lts-announce/2018/08/msg00002.html ↗
- https://sourceforge.net/p/graphicsmagick/bugs/519/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PF62B5PJA2JDUOCKJGUQO3SPL74BEYSV/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WHIKB4TP6KBJWT2UIPWL5MWMG5QXKGEJ/ ↗
- https://usn.ubuntu.com/4248-1/ ↗