ImageMagick is free and open-source software used for editing and manipulating digital images. In versions prior to 7.1.2-0 and 6.9.13-26, in ImageMagicks magick mogrify command, specifying multiple consecutive %d format specifiers in a filename template causes internal pointer arithmetic to generate an address below the beginning of the stack buffer, resulting in a stack overflow through vsnprintf(). Versions 7.1.2-0 and 6.9.13-26 fix the issue.
Weakness
The product writes to a buffer using an index or pointer that references a memory location prior to the beginning of the buffer.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Imagemagick | Imagemagick | * | 6.9.13-26 (excluding) |
| Imagemagick | Imagemagick | 7.0.0-0 (including) | 7.1.2-0 (excluding) |
| Imagemagick | Ubuntu | esm-apps/focal | * |
| Imagemagick | Ubuntu | esm-apps/jammy | * |
| Imagemagick | Ubuntu | esm-apps/noble | * |
| Imagemagick | Ubuntu | esm-infra-legacy/trusty | * |
| Imagemagick | Ubuntu | esm-infra/bionic | * |
| Imagemagick | Ubuntu | esm-infra/xenial | * |
| Imagemagick | Ubuntu | jammy | * |
| Imagemagick | Ubuntu | noble | * |
| Imagemagick | Ubuntu | plucky | * |
| Imagemagick | Ubuntu | upstream | * |
Potential Mitigations
References
- https://github.com/ImageMagick/ImageMagick/commit/66dc8f51c11b0ae1f1cdeacd381c3e9a4de69774
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qh3h-j545-h8c9
- https://lists.debian.org/debian-lts-announce/2025/09/msg00012.html
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qh3h-j545-h8c9