| 标题 | LibreDWG Project LibreDWG <= 0.14, main branch up to commit 6d6a339 (2026-04-10) NULL Pointer Dereference (CWE-476) |
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| 描述 | A NULL pointer dereference vulnerability exists in the LibreDWG library, affecting versions up to and including 0.14, and the main branch up to commit 6d6a339 released on 2026-04-10. The vulnerability occurs in the match_BLOCK_HEADER function when processing maliciously crafted DWG files. Due to insufficient NULL pointer validation during BLOCK_HEADER object matching processing, the code performs an invalid read access to a NULL address. An attacker can exploit this issue by supplying a specially crafted DWG file to the dwggrep utility linked against the vulnerable library, resulting in a program crash and denial of service. |
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| 来源 | ⚠️ https://github.com/LibreDWG/libredwg/issues/1247 |
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| 用户 | pwn3rd (UID 97480) |
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| 提交 | 2026-04-27 17時43分 (1 月前) |
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| 管理 | 2026-05-25 21時39分 (28 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 365548 [GNU LibreDWG 直到 0.14 Dwggrep Utility dwggrep.c match_BLOCK_HEADER 拒绝服务] |
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| 积分 | 20 |
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