Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress
Résumé
Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress
Description d'origine
La description telle que publiée par la source (souvent en anglais).
When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption that the height and width are divisible by 8.
If the height or width of the image is not divisible by 8, the copy loops at [0] and [1] will continue to write until the next multiple of 8.
The buffer td->uncompressed_data is allocated in decode_block based on the precise height and width of the image, so the "rounded-up" multiple of 8 in the copy loop can exceed the buffer bounds, and the write block starting at [2] can corrupt following heap memory.
We recommend upgrading to version 8.0 or beyond.
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Debian DEBIAN-CVE-2025-59732 ffmpeg Corrigé dans: 7:5.1.7-0+deb12u1
Références
- advisory github.com
- advisory nvd.nist.gov
- package git.ffmpeg.org
- web issuetracker.google.com