| 제목 | Assimp commit 17c12da Heap-based Buffer Overflow |
|---|
| 설명 | A heap-buffer-overflow vulnerability exists in Assimp's 3DGS MDL7 bone transformation key parser within the Assimp::MDLImporter::ParseBoneTrafoKeys_3DGS_MDL7() function atMDLLoader.cpp:1691. The flaw is caused by missing buffer boundary validation when iterating over bone transformation data. The function relies on the untrusted `transmatrix_count` value read directly from the MDL7 file to control loop iterations, and increments the `pcBoneTransforms` pointer by a fixed structure size in each cycle without checking whether the pointer stays within the valid bounds of the allocated file buffer. A maliciously crafted or truncated MDL7 file can force the pointer beyond the valid frame data region, triggering an out-of-bounds 2-byte heap memory read. This vulnerability results in memory corruption and application crash, and remote attackers can exploit this issue via a specially crafted MDL model file to conduct denial-of-service (DoS) attacks. |
|---|
| 원천 | ⚠️ https://github.com/assimp/assimp/issues/6633 |
|---|
| 사용자 | TYGLS (UID 94774) |
|---|
| 제출 | 2026. 06. 29. PM 02:49 (2 개월 ago) |
|---|
| 모더레이션 | 2026. 08. 16. PM 08:12 (2 months later) |
|---|
| 상태 | 수락 |
|---|
| VulDB 항목 | 391200 [Open Asset Import Library Assimp 17c12da 3DGS MDL7 Bone Transformation Key Parser MDLLoader.cpp ParseBoneTrafoKeys_3DGS_MDL7 transmatrix_count/pcBoneTransforms 메모리 손상] |
|---|
| 포인트들 | 20 |
|---|