Debian DLA-2436-1 : sddm security update

medium Nessus Plugin ID 142633

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Synopsis

The remote Debian host is missing a security update.

Description

It was discovered that there was an issue in the sddm display manager where local unprivileged users could create a connection to the X server.

For Debian 9 'Stretch', this problem has been fixed in version 0.14.0-4+deb9u2.

We recommend that you upgrade your sddm packages.

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

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

Plugin Details

Severity: Medium

ID: 142633

File Name: debian_DLA-2436.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 11/9/2020

Updated: 2/9/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.6

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

CVSS Score Source: CVE-2020-28049

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:sddm, p-cpe:/a:debian:debian_linux:sddm-theme-debian-maui, p-cpe:/a:debian:debian_linux:sddm-theme-maldives, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:sddm-theme-debian-elarun, p-cpe:/a:debian:debian_linux:sddm-theme-maui, p-cpe:/a:debian:debian_linux:sddm-theme-elarun

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: 11/6/2020

Vulnerability Publication Date: 11/4/2020

Reference Information

CVE: CVE-2020-28049

Detections

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