Bug 2401801 (CVE-2025-59731)

Summary:	CVE-2025-59731 FFmpeg: Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	gtanzill, jbuscemi
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2401825, 2401832, 2401843, 2401848, 2401852, 2417676, 2417677, 2401855, 2417675
Bug Blocks:

Description OSIDB Bzimport 2025-10-06 09:01:45 UTC

When decoding an OpenEXR file that uses DWAA or DWAB compression, the specified raw length of run-length-encoded data is not checked when using it to calculate the output data.

We read rle_raw_size from the input file at [0], we decompress and decode into the buffer td->rle_raw_data of size rle_raw_size at [1], and then at [2] we will access entries in this buffer up to (td->xsize - 1) * (td->ysize - 1) + rle_raw_size / 2, which may exceed rle_raw_size.




We recommend upgrading to version 8.0 or beyond.