ImageMagick: Out-of-bounds memory read when processing certain image files

Summary

A bug in ImageMagick's handling of a specific type of image file could allow an attacker to access unauthorized data. This could potentially lead to security issues if an attacker can trick a system into processing a malicious image file. To fix this, upgrade to version 7.1.2-16 or 6.9.13-41 or later.

What to do

Update debian imagemagick to version 8:7.1.1.43+dfsg1-1+deb13u6.
Update debian imagemagick to version 8:7.1.2.15+dfsg1-1.

Affected software

Vendor	Product	Affected versions	Fix available
debian	imagemagick	All versions	–
debian	imagemagick	All versions	–
debian	imagemagick	<= 8:7.1.1.43+dfsg1-1+deb13u6	8:7.1.1.43+dfsg1-1+deb13u6
debian	imagemagick	<= 8:7.1.2.15+dfsg1-1	8:7.1.2.15+dfsg1-1

Original title

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 heap buffer over-read vulnerability exists in the DJVU ima...

Original description

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 heap buffer over-read vulnerability exists in the DJVU image format handler. The vulnerability occurs due to integer truncation when calculating the stride (row size) for pixel buffer allocation. The stride calculation overflows a 32-bit signed integer, resulting in an out-of-bounds memory reads. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

osv CVSS3.1 4.4

https://security-tracker.debian.org/tracker/CVE-2026-27799 Vendor Advisory