| 标题 | Open Asset Import Library Assimp 6.0.2 / master commit 0581ed5 Uncontrolled Memory Allocation |
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| 描述 | The bug occurs in the Q3DImporter::InternReadFile function, where the importer reads the number of materials (numMats) directly from the input file without validation. This value is then used in a call to materials.reserve(numMats) and later in a loop with materials.emplace_back(). Since numMats is attacker-controlled, a malicious file can specify an extremely large value, leading the program to request an allocation far exceeding addressable memory. This results in an allocation-size-too-big error under ASan and causes the process to terminate. |
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| 来源 | ⚠️ https://github.com/assimp/assimp/issues/6356 |
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| 用户 | sand (UID 90194) |
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| 提交 | 2025-09-18 15時44分 (1 年前) |
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| 管理 | 2025-10-04 08時02分 (16 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 327008 [Open Asset Import Library Assimp 6.0.2 Q3DLoader.cpp InternReadFile 拒绝服务] |
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| 积分 | 20 |
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