Application crash via malformed MD5 model file
Published Sep 26, 2024 · Updated Sep 26, 2024
Heap-based buffer overflow in Assimp 5.4.3 allows attackers to crash a consuming application with a malformed MD5 model file. MD5Importer::LoadMD5MeshFile passes the file into ParseSection, whose string construction copies two bytes beyond the heap allocation. The consuming application must import the file; the demonstrated consequence is an out-of-bounds read and process abort, not data modification or code execution.
Summary
What happened
Heap-based buffer overflow in Assimp 5.4.3 allows attackers to crash a consuming application with a malformed MD5 model file. MD5Importer::LoadMD5MeshFile passes the file into ParseSection, whose string construction copies two bytes beyond the heap allocation. The consuming application must import the file; the demonstrated consequence is an out-of-bounds read and process abort, not data modification or code execution.
The record
- CVE
- CVE-2024-46632
- Published
- Sep 26, 2024
- Updated
- Sep 26, 2024
- Vendor
- Open Asset Import Library
- Product
- Assimp
- Classifications
- CWE-122, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 26, 2024CVE publishedPublication date reported by the CVE source.
- Sep 26, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=5.4.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Malformed MD5 model file proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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