Detections
Analytics
Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerability (USN-4683-1)
medium Nessus Plugin ID 144786
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Synopsis
The remote Ubuntu host is missing a security update.Description
The remote Ubuntu 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4683-1 advisory.Minh Yuan discovered that the framebuffer console driver in the Linux kernel did not properly handle fonts in some conditions. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory).
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 kernel package.See Also
Plugin Details
Severity: Medium
ID: 144786
File Name: ubuntu_USN-4683-1.nasl
Version: 1.8
Type: local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 1/7/2021
Updated: 8/27/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.5
CVSS v2
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 4.8
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:C
CVSS Score Source: CVE-2020-28974
CVSS v3
Risk Factor: Medium
Base Score: 5
Temporal Score: 4.5
Vector: CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.6.0-1039-oem
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: 1/7/2021
Vulnerability Publication Date: 11/19/2020
Reference Information
CVE: CVE-2020-28974
USN: 4683-1