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.
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2022-08-23T00:00:00
Updated: 2024-08-03T17:16:02.913Z
Reserved: 2021-11-22T00:00:00
Link: CVE-2021-3996
Vulnrichment
No data.
NVD
Status : Modified
Published: 2022-08-23T20:15:08.560
Modified: 2024-01-07T09:15:08.600
Link: CVE-2021-3996
Redhat