ImageMagick SIXEL Decoder Has Signed Integer Overflow, Leading to Memory Corruption
Summary
ImageMagick SIXEL Decoder Has Signed Integer Overflow, Leading to Memory Corruption
Original description
The description as published by the source.
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a signed integer overflow vulnerability in ImageMagick's SIXEL decoder allows an attacker to trigger memory corruption and denial of service when processing a maliciously crafted SIXEL image file. The vulnerability occurs during buffer reallocation operations where pointer arithmetic using signed 32-bit integers overflows. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-25970 imagemagick Fixed in: 8:6.9.11.60+dfsg-1.3+deb11u10
- Ubuntu UBUNTU-CVE-2026-25970 imagemagick Fixed in: 8:6.8.9.9-7ubuntu5.16+esm19
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov