VDB
DEBIAN-CVE-2021-3995
DEBIAN-CVE-2021-3995
PUBLISHED
CVSS 5.5 MEDIUM
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 an unprivileged local attacker to unmount FUSE filesystems that belong to certain other users who have a UID that is a prefix of the UID of the attacker in its string form. An attacker may use this flaw to cause a denial of service to applications that use the affected filesystems.
Risk Scores
CVSS v3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | util-linux | 0, 0, 2.36.1-8 |
| Debian:13 | util-linux | 0, 0, 0 |
| Debian:14 | util-linux | 0, 0, 0 |
| Debian:12 | util-linux | 0, 0, 0 |
Timeline
- Aug 23, 2022 CVE Published
- Apr 28, 2026 CVE Updated