cvedb.io
CVE-2021-3995
MEDIUM · CVSS 5.5
EPSS exploitation probability: 0%
Published 2022-08-23T20:15:08.493 · Last modified 2026-06-17T04:06:21.637

Summary

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.

Affected products

kernel — util-linux

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.