Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress_CVE-2025-59731

6.9 / 10

MEDIUM

CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

Description

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.

Basic Information

ID CVE-2025-59731

Source Google

Published Oct 6, 2025 at 08:09

Affected Product

Vendor FFmpeg

Product FFmpeg

Version 9a32b863074ed4140141e0d3613905c6f1fe61c5

Affected Versions FFmpeg FFmpeg 9a32b863074ed4140141e0d3613905c6f1fe61c5
FFmpeg FFmpeg 7.1.1

CWE Classification

CWE-787

References

b.corp.google.com /issues/436510153

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    "published": "2025-10-06T08:09:23.410Z",
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