Detections
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Ubuntu 20.04 LTS : GNOME Shell vulnerability (USN-4464-1)
medium Nessus Plugin ID 139692
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Synopsis
The remote Ubuntu host is missing a security update.Description
The remote Ubuntu 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4464-1 advisory.It was discovered that GNOME Shell incorrectly handled the login screen password dialog. Sensitive information could possibly be exposed during user logout.
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected gnome-shell, gnome-shell-common and / or gnome-shell-extension-prefs packages.See Also
Plugin Details
Severity: Medium
ID: 139692
File Name: ubuntu_USN-4464-1.nasl
Version: 1.8
Type: local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 8/19/2020
Updated: 8/27/2024
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, 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:canonical:ubuntu_linux:gnome-shell, p-cpe:/a:canonical:ubuntu_linux:gnome-shell-extension-prefs, p-cpe:/a:canonical:ubuntu_linux:gnome-shell-common, cpe:/o:canonical:ubuntu_linux:20.04:-:lts
Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/18/2020
Vulnerability Publication Date: 8/11/2020
Reference Information
CVE: CVE-2020-17489
USN: 4464-1