Heap-based Buffer Overflow Affecting imagemagick package, versions <8:6.9.11.60+dfsg-1.3+deb11u6


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.06% (18th percentile)

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  • Snyk IDSNYK-DEBIAN11-IMAGEMAGICK-12202814
  • published27 Aug 2025
  • disclosed26 Aug 2025

Introduced: 26 Aug 2025

NewCVE-2025-57803  (opens in a new tab)
CWE-122  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Debian:11 imagemagick to version 8:6.9.11.60+dfsg-1.3+deb11u6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream imagemagick package and not the imagemagick package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1