Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress
Summary
Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress
Original description
The description as published by the source.
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.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2025-59732 ffmpeg Fixed in: 7:5.1.7-0+deb12u1
References
- advisory github.com
- advisory nvd.nist.gov
- package git.ffmpeg.org
- web issuetracker.google.com