CVE-2021-3996
MEDIUM5.5EPSS 0.17%發布日:2022/8/23修改日:2026/4/28
描述
A logic error was found in the libmount library of util-linux in the function that allows an unprivileged user to unmount a FUSE filesystem. This flaw allows a local user on a vulnerable system to unmount other users' filesystems that are either world-writable themselves (like /tmp) or mounted in a world-writable directory. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.
受影響套件(2)
- Alpine/util-linuxfrom 0, < 2.37.3-r0
- Debian/util-linuxfrom 0, < 2.36.1-8+deb11u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |