CVE-2025-55212: ImageMagick affected by divide-by-zero in ThumbnailImage via montage -geometry ":" leads to crash
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.
References
- github.com/ImageMagick/ImageMagick
- github.com/ImageMagick/ImageMagick/blob/0ba1b587be17543b664f7ad538e9e51e0da59d17/MagickCore/geometry.c
- github.com/ImageMagick/ImageMagick/blob/0ba1b587be17543b664f7ad538e9e51e0da59d17/MagickCore/resize.c
- github.com/ImageMagick/ImageMagick/commit/5f0bcf986b8b5e90567750d31a37af502b73f2af
- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-fh55-q5pj-pxgw
- github.com/advisories/GHSA-fh55-q5pj-pxgw
- github.com/dlemstra/Magick.NET/releases/tag/14.8.1
- nvd.nist.gov/vuln/detail/CVE-2025-55212
Code Behaviors & Features
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