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JLSEC-2026-962 Critical 9.8

ImageMagick has heap buffer overflow in YUV 4:2:2 decoder

JLSEC Published
Modified
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Packages
ImageMagick_jll < 7.1.2023+0

A heap buffer overflow write vulnerability exists in ReadYUVImage() (coders/yuv.c) when processing malicious YUV 4:2:2 (NoInterlace) images. The pixel-pair loop writes one pixel beyond the allocated row buffer.

=================================================================
==204642==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x5170000002e0 at pc 0x562d21a7e8de bp 0x7fffa9ae1270 sp 0x7fffa9ae1260
WRITE of size 8 at 0x5170000002e0 thread T0

References