ImageMagick vulnerable to denial of service via integer overflow in BMP decoder on 32-bit systems
Summary
ImageMagick vulnerable to denial of service via integer overflow in BMP decoder on 32-bit systems
Original description
The description as published by the source.
ImageMagick is an open source software suite for displaying, converting, and editing raster image files. In ImageMagick versions prior to 7.1.2-7 and 6.9.13-32, an integer overflow vulnerability exists in the BMP decoder on 32-bit systems. The vulnerability occurs in coders/bmp.c when calculating the extent value by multiplying image columns by bits per pixel. On 32-bit systems with size_t of 4 bytes, a malicious BMP file with specific dimensions can cause this multiplication to overflow and wrap to zero. The overflow check added to address CVE-2025-57803 is placed after the overflow occurs, making it ineffective. A specially crafted 58-byte BMP file with width set to 536,870,912 and 32 bits per pixel can trigger this overflow, causing the bytes_per_line calculation to become zero. This vulnerability only affects 32-bit builds of ImageMagick where default resource limits for width, height, and area have been manually increased beyond their defaults. 64-bit systems with size_t of 8 bytes are not vulnerable, and systems using default ImageMagick resource limits are not vulnerable. The vulnerability is fixed in versions 7.1.2-7 and 6.9.13-32.
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-2025-62171 imagemagick Fixed in: 8:6.9.11.60+dfsg-1.3+deb11u7
- Ubuntu UBUNTU-CVE-2025-62171 imagemagick Fixed in: 8:6.7.7.10-6ubuntu3.13+esm16
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web lists.debian.org