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Debian: Security Advisory for util-linux (DSA-5055-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'util-linux' package(s) announced via the DSA-5055-1 advisory.
Insight
Insight
The Qualys Research Labs discovered two vulnerabilities in util-linux's libmount. These flaws allow an unprivileged user to unmount other users' filesystems that are either world-writable themselves or mounted in a world-writable directory (CVE-2021-3996), or to unmount FUSE filesystems that belong to certain other users (CVE-2021-3995).
Affected Software
Affected Software
'util-linux' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the stable distribution (bullseye), these problems have been fixed in version 2.36.1-8+deb11u1. We recommend that you upgrade your util-linux packages.