Detections
Analytics

Debian DSA-5055-1 : util-linux - security update

medium Nessus Plugin ID 157263

Language:

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5055 advisory.

 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). 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. For the detailed security status of util-linux please refer to its security tracker page at: https://security- tracker.debian.org/tracker/util-linux

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the util-linux packages.

For the stable distribution (bullseye), these problems have been fixed in version 2.36.1-8+deb11u1.

See Also

https://security-tracker.debian.org/tracker/source-package/util-linux

https://www.debian.org/security/2022/dsa-5055

https://security-tracker.debian.org/tracker/CVE-2021-3995

https://security-tracker.debian.org/tracker/CVE-2021-3996

https://packages.debian.org/source/bullseye/util-linux

Plugin Details

Severity: Medium

ID: 157263

File Name: debian_DSA-5055.nasl

Version: 1.7

Type: local

Agent: unix

Published: 1/31/2022

Updated: 1/24/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2021-3996

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:uuid-dev, p-cpe:/a:debian:debian_linux:uuid-runtime, p-cpe:/a:debian:debian_linux:libfdisk1-udeb, p-cpe:/a:debian:debian_linux:libsmartcols1-udeb, p-cpe:/a:debian:debian_linux:libfdisk1, p-cpe:/a:debian:debian_linux:bsdutils, p-cpe:/a:debian:debian_linux:util-linux-locales, p-cpe:/a:debian:debian_linux:eject-udeb, p-cpe:/a:debian:debian_linux:libuuid1-udeb, p-cpe:/a:debian:debian_linux:bsdextrautils, p-cpe:/a:debian:debian_linux:libfdisk-dev, p-cpe:/a:debian:debian_linux:eject, p-cpe:/a:debian:debian_linux:libblkid1-udeb, p-cpe:/a:debian:debian_linux:util-linux, p-cpe:/a:debian:debian_linux:libsmartcols1, p-cpe:/a:debian:debian_linux:rfkill, p-cpe:/a:debian:debian_linux:libblkid1, p-cpe:/a:debian:debian_linux:libblkid-dev, p-cpe:/a:debian:debian_linux:fdisk, p-cpe:/a:debian:debian_linux:util-linux-udeb, p-cpe:/a:debian:debian_linux:libmount-dev, p-cpe:/a:debian:debian_linux:libmount1, p-cpe:/a:debian:debian_linux:libsmartcols-dev, p-cpe:/a:debian:debian_linux:libmount1-udeb, p-cpe:/a:debian:debian_linux:libuuid1, p-cpe:/a:debian:debian_linux:mount, p-cpe:/a:debian:debian_linux:fdisk-udeb

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/24/2022

Vulnerability Publication Date: 1/24/2022

Reference Information

CVE: CVE-2021-3995, CVE-2021-3996