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Debian: Security Advisory for util-linux (DSA-5055-1)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

6 months ago

Modified

Modified

6 months ago

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.

Common Vulnerabilities and Exposures (CVE)