| 标题 | Assimp commit 17c12da Heap-based Buffer Overflow |
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| 描述 | A heap-buffer-overflow vulnerability exists in Assimp's 3DGS MDL7 model output mesh generator within theAssimp::MDLImporter::GenerateOutputMeshes_3DGS_MDL7() function at MDLLoader.cpp:1944. The flaw is caused by insufficient array boundary checking during bone data initialization. The program allocates the`pcMesh->mBones` bone array with a fixed size based on the declared bone count, yet iterates and increments the loop index without validating the maximum accessible array index. Processing a maliciously crafted MDL7 file can make the loop index exceed the actual allocated bone array size, triggering an out-of-bounds 8-byte heap write operation on the bone array buffer. This memory corruption issue can result in program crash and abnormal memory modification, allowing remote attackers to perform denial-of-service (DoS) attacks via a specially constructed MDL model file. |
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| 来源 | ⚠️ https://github.com/assimp/assimp/issues/6631 |
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| 用户 | TYGLS (UID 94774) |
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| 提交 | 2026-06-29 14時46分 (2 月前) |
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| 管理 | 2026-08-16 09時50分 (2 months later) |
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| 状态 | 已接受 |
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| VulDB条目 | 391146 [Open Asset Import Library Assimp 17c12da 3DGS MDL7 Model Output Mesh Generator MDLLoader.cpp GenerateOutputMeshes_3DGS_MDL7 内存损坏] |
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| 积分 | 20 |
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