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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-08-23T00:00:00

Updated: 2024-08-03T17:16:03.736Z

Reserved: 2021-11-22T00:00:00

Link: CVE-2021-3995

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-08-23T20:15:08.493

Modified: 2024-11-21T06:23:20.203

Link: CVE-2021-3995

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-01-24T11:00:00Z

Links: CVE-2021-3995 - Bugzilla