[Pkg-gmagick-im-team] Bug#1112469: imagemagick: CVE-2025-57803

[Salvatore Bonaccorso]

Source: imagemagick
Version: 8:7.1.2.1+dfsg1-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for imagemagick.

CVE-2025-57803[0]:
| 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
| for ImageMagick's 32-bit build, a 32-bit integer overflow in the BMP
| encoder’s scanline-stride computation collapses bytes_per_line
| (stride) to a tiny value while the per-row writer still emits 3 ×
| width bytes for 24-bpp images. The row base pointer advances using
| the (overflowed) stride, so the first row immediately writes past
| its slot and into adjacent heap memory with attacker-controlled
| bytes. This is a classic, powerful primitive for heap corruption in
| common auto-convert pipelines. This issue has been patched in
| versions 6.9.13-28 and 7.1.2-2.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2025-57803
    https://www.cve.org/CVERecord?id=CVE-2025-57803
[1] https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-mxvv-97wh-cfmm
[2] https://github.com/ImageMagick/ImageMagick/commit/2c55221f4d38193adcb51056c14cf238fbcc35d7

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore