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Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6465-1)

medium Nessus Plugin ID 184098

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Synopsis

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

Description

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6465-1 advisory.

 Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-31083)

 Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a null pointer dereference vulnerability in some situations. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-3772)

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-6465-1

Plugin Details

Severity: Medium

ID: 184098

File Name: ubuntu_USN-6465-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 10/31/2023

Updated: 8/28/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2023-3772

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.2

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

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

CVSS Score Source: CVE-2023-31083

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-88-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1040-nvidia-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1042-ibm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1049-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1040-nvidia, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1046-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1051-azure-fde, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-88-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-88-lowlatency, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-88-generic-64k, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1032-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1047-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-88-lowlatency-64k

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/31/2023

Vulnerability Publication Date: 4/24/2023

Reference Information

CVE: CVE-2023-31083, CVE-2023-3772

USN: 6465-1