CVE-2025-5166

NameCVE-2025-5166
DescriptionA vulnerability was found in Open Asset Import Library Assimp 5.4.3. It has been classified as problematic. Affected is the function MDCImporter::InternReadFile of the file assimp/code/AssetLib/MDC/MDCLoader.cpp of the component MDC File Parser. The manipulation of the argument pcVerts leads to out-of-bounds read. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The project decided to collect all Fuzzer bugs in a main-issue to address them in the future.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1106592

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
assimp (PTS)bullseye5.0.1~ds0-2vulnerable
bookworm5.2.5~ds0-1vulnerable
trixie, sid5.4.3+ds-2vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
assimpsource(unstable)(unfixed)1106592

Notes

[trixie] - assimp <postponed> (Minor issue, revisit when/if fixed upstream)
[bookworm] - assimp <postponed> (Minor issue, revisit when/if fixed upstream)
[bullseye] - assimp <postponed> (Minor issue, revisit when/if fixed upstream)
https://github.com/assimp/assimp/issues/6168
https://github.com/assimp/assimp/issues/6128

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