CVE-2021-3996

CVE-2021-3996

Vendor N/A
Product util-linux
Weakness CWE-552 · Files accessible externally
Published August 23, 2022
Last update October 15, 2024

CVSS base score

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 23, 2022 CVE published
October 15, 2024 Record updated