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util-linux CVE-2021-3995

Moderate
webern published GHSA-8qx4-6xgm-wjhq Mar 30, 2022

Package

util-linux (bottlerocket)

Affected versions

< 1.7.0

Patched versions

1.7.0

Description

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.

This is an unintentionally published duplicate of GHSA-f6fp-9j83-vqxq

Severity

Moderate

CVE ID

CVE-2021-3995

Weaknesses

No CWEs