| タイトル | Assimp commit 17c12da NULL Pointer Dereference |
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| 説明 | A NULL pointer dereference vulnerability exists in Assimp commit 17c12da, located in the `glTF2Importer::ImportEmbeddedTextures` function in `code/AssetLib/glTF2/glTF2Importer.cpp` at line 1725. The flaw is triggered by processing maliciously crafted glTF files containing malformed `mimeType` values that lack the '/' character. The application fails to validate the return value of the `strchr` function; when `strchr` returns NULL due to the missing delimiter, unsafe pointer arithmetic (+1) generates an invalid memory address (0x1), which is then dereferenced in a `strncmp` operation. This causes an invalid memory read and immediate application crash (segmentation fault). Remote attackers can exploit this vulnerability by supplying a malicious glTF file to execute a denial-of-service (DoS) attack against affected Assimp-based applications without requiring any privileges or user interaction. |
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| ソース | ⚠️ https://github.com/assimp/assimp/issues/6608 |
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| ユーザー | TYGLS (UID 94774) |
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| 送信 | 2026年05月07日 04:23 (1 月 ago) |
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| モデレーション | 2026年05月31日 08:13 (24 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 367477 [Assimp 迄 6.0.4 TF File glTF2Importer.cpp ImportEmbeddedTextures サービス拒否] |
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| ポイント | 20 |
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