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A vulnerability was found in Open Asset Import Library Assimp 5.4.3 and classified as problematic. This issue affects the function MDCImporter::ValidateSurfaceHeader of the file assimp/code/AssetLib/MDC/MDCLoader.cpp. The manipulation of the argument pcSurface2 leads to out-of-bounds read. Attacking locally is a requirement. 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.

Eine problematische Schwachstelle wurde in Open Asset Import Library Assimp 5.4.3 gefunden. Betroffen davon ist die Funktion MDCImporter::ValidateSurfaceHeader der Datei assimp/code/AssetLib/MDC/MDCLoader.cpp. Durch das Beeinflussen des Arguments pcSurface2 mit unbekannten Daten kann eine out-of-bounds read-Schwachstelle ausgenutzt werden. Umgesetzt werden muss der Angriff lokal. Der Exploit steht zur öffentlichen Verfügung.

PUBLISHED Reserved 2025-05-25 | Published 2025-05-26 | Updated 2025-05-28 | Assigner VulDB




MEDIUM: 4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
1.7AV:L/AC:L/Au:S/C:N/I:N/A:P

Problem types

Out-of-Bounds Read

Memory Corruption

Product status

5.4.3
affected

Timeline

2025-05-25:Advisory disclosed
2025-05-25:VulDB entry created
2025-05-25:VulDB entry last update

References

github.com/assimp/assimp/issues/6167 exploit

vuldb.com/?id.310253 (VDB-310253 | Open Asset Import Library Assimp MDCLoader.cpp ValidateSurfaceHeader out-of-bounds) vdb-entry technical-description

vuldb.com/?ctiid.310253 (VDB-310253 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.578000 (Submit #578000 | Open Asset Import Library Assimp 5.4.3 Heap Out of Bounds Read) third-party-advisory

github.com/assimp/assimp/issues/6167 issue-tracking

github.com/assimp/assimp/issues/6128 issue-tracking

github.com/user-attachments/files/20204942/reproducer.zip exploit

cve.org (CVE-2025-5165)

nvd.nist.gov (CVE-2025-5165)

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