CVE-2026-50643 : 詳細

CVE-2026-50643

2026-06-18
13h25 +00:00
Overflow
2026-10-26
11h10 +00:00
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CVE の説明

8cc is vulnerable to an Out‑of‑Bounds Read due to improper handling of #line directives and GNU linemarkers. The compiler accepts attacker-controlled filename and line number metadata and later uses it without validation when accessing source line arrays. By supplying invalid or oversized line numbers, an attacker can trigger out-of-bounds memory access and a crash. Maintainer of this project was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Version corresponding to the commit b480958 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.

CVE の情報

関連する弱点

CWE-ID 弱点名 出典
CWE-125 Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.

参考資料