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Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-6868-1)

high Nessus Plugin ID 201871

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6868-1 advisory.

 Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida discovered that the Linux kernel mitigations for the initial Branch History Injection vulnerability (CVE-2022-0001) were insufficient for Intel processors. A local attacker could potentially use this to expose sensitive information. (CVE-2024-2201)

 Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

 - Netfilter; (CVE-2024-26925, CVE-2024-26643)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues 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-6868-1

Plugin Details

Severity: High

ID: 201871

File Name: ubuntu_USN-6868-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 7/4/2024

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: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2024-26925

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

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

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

CVSS Score Source: CVE-2024-2201

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1115-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1039-iot, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1046-xilinx-zynqmp, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1131-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-187-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1087-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1132-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1126-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1111-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-187-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-187-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1074-ibm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1127-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1094-gkeop

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 7/3/2024

Vulnerability Publication Date: 3/21/2024

Reference Information

CVE: CVE-2024-2201, CVE-2024-26643, CVE-2024-26925

USN: 6868-1