CVE-2026-35355

MEDIUM6.3EPSS 0.01%

uutils coreutils has a Time-of-Check to Time-of-Use (TOCTOU) race condition

發布日:2026/4/22修改日:2026/5/5
也稱為:GHSA-v24v-f45g-w7jfDEBIAN-CVE-2026-35355

描述

The install utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file installation. The implementation unlinks an existing destination file and then recreates it using a path-based operation without the O_EXCL flag. A local attacker can exploit the window between the unlink and the subsequent creation to swap the path with a symbolic link, allowing them to redirect privileged writes to overwrite arbitrary system files.

受影響套件(2)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1MEDIUM6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

參考連結(6)