Libcap: libcap: privilege escalation via toctou race condition in cap_set_file()

A flaw was found in libcap. A local unprivileged user can exploit a Time-of-check-to-time-of-use (TOCTOU) race condition in the `cap_set_file()` function. This allows an attacker with write access to a parent directory to redirect file capability updates to an attacker-controlled file. By doing so, capabilities can be injected into or stripped from unintended executables, leading to privilege escalation.

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

检查时间与使用时间(TOCTOU)的竞争条件

libcap 安全漏洞

libcap是Michael Kerrisk个人开发者的一个网络数据包捕获函数包。 libcap存在安全漏洞，该漏洞源于cap_set_file函数存在竞争条件，可能导致权限提升。

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