CVE-2025-3549

Name	CVE-2025-3549
Description	A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. Affected is the function Assimp::MD3Importer::ValidateSurfaceHeaderOffsets of the file code/AssetLib/MD3/MD3Loader.cpp of the component File Handler. The manipulation leads to heap-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1103444

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
assimp (PTS)	bullseye	5.0.1~ds0-2	vulnerable
	bookworm	5.2.5~ds0-1	vulnerable
	sid, trixie	5.4.3+ds-2	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
assimp	source	(unstable)	(unfixed)			1103444

Notes

[trixie] - assimp <no-dsa> (Minor issue)
[bookworm] - assimp <no-dsa> (Minor issue)
[bullseye] - assimp <postponed> (Minor issue)
https://github.com/assimp/assimp/issues/6070