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CVE-2025-59731 - Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress

CVE ID : CVE-2025-59731
Published : Oct. 6, 2025, 8:15 a.m. | 3 hours, 59 minutes ago
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.
Severity: 6.9 | MEDIUM
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