uutils coreutils cp Information Disclosure via Permission Handling Race

The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions (e.g., 0644) before being restricted to their final mode (e.g., 0600) later in the process. A local attacker can race to open the file during this window; once obtained, the file descriptor remains valid and readable even after the permissions are tightened, exposing sensitive or private file contents.

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

检查时间与使用时间(TOCTOU)的竞争条件

uutils coreutils 安全漏洞

uutils coreutils是Uutils开源的一个跨平台核心命令行工具集。 uutils coreutils存在安全漏洞，该漏洞源于信息泄露竞争条件，可能导致本地攻击者在权限收紧前打开文件，从而泄露敏感或私有文件内容。

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