PT-2025-40880 · Sanm+1 · Sanm+1

Published

2025-08-21

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Updated

2025-11-15

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CVE-2025-59734

CVSS v4.0

8.7

High

VectorAV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions versions prior to 8.0
Description A crafted animation can trigger a use-after-free write during SANM decoding. This occurs when a STOR chunk is followed by an FOBJ chunk, and the frame has an invalid size. The code attempts to decode a frame object again, potentially reallocating a buffer while a GetByteContext object still holds a reference to the old buffer. This can lead to a use-after-free read when codecs use the GetByteContext object, and potentially corrupt allocator metadata by writing to freed data. The issue can be triggered by simply probing a file for the SANM format.
Recommendations Upgrade to version 8.0 or beyond.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2025-12719
CVE-2025-59734

Affected Products

Debian
Sanm