OSV-2022-624 Heap-buffer-overflow in Assimp::MD5::MD5Parser::ParseHeader

Not scored Published

A heap-buffer-overflow in the Assimp library's MD5 parser allows attackers to cause a crash or potentially execute code via malicious files.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is OSV-2022-624?

OSV-2022-624 is a memory corruption vulnerability in assimp, published on 25 Jul 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=49422

Crash type: Heap-buffer-overflow READ 1
Crash state:
Assimp::MD5::MD5Parser::ParseHeader
Assimp::MD5::MD5Parser::MD5Parser
Assimp::MD5Importer::LoadMD5MeshFile

Which versions are affected by OSV-2022-624?

1 open source package ship an affected version, including assimp.

PackageAffectedFixed in
assimp OSS-FuzzAll versionsNone

How do I fix OSV-2022-624?

No fix has been published for OSV-2022-624 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is OSV-2022-624 being exploited?

There is no known exploitation of OSV-2022-624 in the wild and no public exploit code.

Sources

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