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Ubuntu 20.04 LTS : Linux kernel vulnerability (USN-5135-1)

medium Nessus Plugin ID 154974

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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-5135-1 advisory.

 It was discovered that the Linux kernel did not properly account for the memory usage of certain IPC objects. A local attacker could use this to cause a denial of service (memory exhaustion).

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-5135-1

Plugin Details

Severity: Medium

ID: 154974

File Name: ubuntu_USN-5135-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 11/9/2021

Updated: 8/28/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2021-3759

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-40-generic-64k, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-40-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1021-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-1022-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-40-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-1019-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.11.0-40-generic-lpae

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: 11/9/2021

Vulnerability Publication Date: 2/11/2022

Reference Information

CVE: CVE-2021-3759

USN: 5135-1