| 제목 | LibreDWG Project LibreDWG <= 0.14, main branch up to commit 6d6a339 (released 2026-04-10) Heap-based Buffer Overflow (CWE-122) |
|---|
| 설명 | A heap-based buffer overflow vulnerability exists in the LibreDWG library, in versions up to and including 0.14, and the main branch up to commit 6d6a339 (2026-04-10). The vulnerability resides in the read_2004_compressed_section function within src/decode.c at line 2181. This flaw is caused by insufficient length validation on maliciously crafted DWG R2004 compressed section input data. When processing a malformed DWG file, the length of the decoded data exceeds the capacity of the pre-allocated heap buffer, resulting in an out-of-bounds heap write operation during a memcpy call. This issue can be triggered by an attacker providing a specially crafted DWG file to the dwgread utility, leading to a segmentation fault (SEGV) crash and denial of service. Additionally, this issue is suspected to be an incomplete fix for the previously reported vulnerabilities addressed in GitHub issue #126. |
|---|
| 원천 | ⚠️ https://github.com/LibreDWG/libredwg/issues/1241 |
|---|
| 사용자 | pwn3rd (UID 97480) |
|---|
| 제출 | 2026. 04. 27. PM 05:21 (1 월 ago) |
|---|
| 모더레이션 | 2026. 05. 25. PM 12:04 (28 days later) |
|---|
| 상태 | 수락 |
|---|
| VulDB 항목 | 365482 [GNU LibreDWG 까지 0.14 Dwgread Utility src/decode.c read_2004_compressed_section 메모리 손상] |
|---|
| 포인트들 | 20 |
|---|