Debian DLA-2374-1 : gnome-shell security update

medium Nessus Plugin ID 140606

Synopsis

The remote Debian host is missing a security update.

Description

It was discovered that there was an issue around revealing passwords in the 'gnome-shell' component of the GNOME desktop.

In certain configurations, when logging out of an account the password box from the login dialog could reappear with the password visible in cleartext.

For Debian 9 'Stretch', this problem has been fixed in version 3.22.3-3+deb9u1.

We recommend that you upgrade your gnome-shell packages.

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

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 gnome-shell, and gnome-shell-common packages.

See Also

https://lists.debian.org/debian-lts-announce/2020/09/msg00014.html

https://packages.debian.org/source/stretch/gnome-shell

https://security-tracker.debian.org/tracker/source-package/gnome-shell

Plugin Details

Severity: Medium

ID: 140606

File Name: debian_DLA-2374.nasl

Version: 1.3

Type: local

Agent: unix

Published: 9/16/2020

Updated: 2/20/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 1.9

Temporal Score: 1.5

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

CVSS Score Source: CVE-2020-17489

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.9

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:gnome-shell, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:gnome-shell-common

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: 9/15/2020

Vulnerability Publication Date: 8/11/2020

Reference Information

CVE: CVE-2020-17489