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Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerability (USN-5240-1)

high Nessus Plugin ID 156879

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-5240-1 advisory.

 William Liu and Jamie Hill-Daniel discovered that the file system context functionality in the Linux kernel contained an integer underflow vulnerability, leading to an out-of-bounds write. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.

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

https://ubuntu.com/security/notices/USN-5240-1

Plugin Details

Severity: High

ID: 156879

File Name: ubuntu_USN-5240-1.nasl

Version: 1.12

Type: local

Agent: unix

Published: 1/20/2022

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: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6

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

CVSS Score Source: CVE-2022-0185

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.8

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1027-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-96-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.14.0-1020-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1067-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-1028-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1027-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1061-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1053-kvm, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1031-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1063-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.10.0-1057-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-96-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1050-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1025-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1012-ibm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1062-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1027-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-96-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1059-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1028-gcp

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: 1/19/2022

Vulnerability Publication Date: 1/19/2022

CISA Known Exploited Vulnerability Due Dates: 9/11/2024

Exploitable With

Core Impact

Reference Information

CVE: CVE-2022-0185

USN: 5240-1