Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-28 and 7.1.2-2, passing a geometry string containing only a colon (":") to montage -geometry leads GetGeometry() to set width/height to 0. Later, ThumbnailImage() divides by these zero dimensions, triggering a crash (SIGFPE/abort), resulting in a denial of service. This issue has been patched in versions 6.9.13-28 and 7.1.2-2.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
ImageMagick ImageMagick
< 7.1.2-2affected< 6.9.13-28affected
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-fh55-q5pj-pxgw ↗
- https://github.com/ImageMagick/ImageMagick/commit/5f0bcf986b8b5e90567750d31a37af502b73f2af ↗
- https://github.com/ImageMagick/ImageMagick/blob/0ba1b587be17543b664f7ad538e9e51e0da59d17/MagickCore/geometry.c#L355 ↗
- https://github.com/ImageMagick/ImageMagick/blob/0ba1b587be17543b664f7ad538e9e51e0da59d17/MagickCore/resize.c#L4625-L4629 ↗
- https://github.com/dlemstra/Magick.NET/releases/tag/14.8.1 ↗
- https://lists.debian.org/debian-lts-announce/2025/09/msg00012.html ↗