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Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-6867-1)

high Nessus Plugin ID 201865

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Synopsis

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

Description

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6867-1 advisory.

 It was discovered that the HugeTLB file system component of the Linux Kernel contained a NULL pointer dereference vulnerability. A privileged attacker could possibly use this to to cause a denial of service.
 (CVE-2024-0841)

 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:

 - ARM32 architecture;

 - PowerPC architecture;

 - x86 architecture;

 - DMA engine subsystem;

 - EFI core;

 - GPU drivers;

 - InfiniBand drivers;

 - Multiple devices driver;

 - Network drivers;

 - Power supply drivers;

 - TCM subsystem;

 - Userspace I/O drivers;

 - USB subsystem;

 - Framebuffer layer;

 - AFS file system;

 - File systems infrastructure;

 - BTRFS file system;

 - Ext4 file system;

 - Bluetooth subsystem;

 - Networking core;

 - IPv4 networking;

 - IPv6 networking;

 - L2TP protocol;

 - MAC80211 subsystem;

 - Netfilter;

 - Netlink;

 - Wireless networking; (CVE-2021-47063, CVE-2024-26751, CVE-2024-26848, CVE-2024-26748, CVE-2024-26733, CVE-2024-26735, CVE-2024-26805, CVE-2024-26804, CVE-2024-26793, CVE-2023-52504, CVE-2024-27417, CVE-2024-27405, CVE-2024-26778, CVE-2024-27414, CVE-2024-26801, CVE-2024-26835, CVE-2024-27413, CVE-2024-26766, CVE-2024-27410, CVE-2024-27412, CVE-2024-26773, CVE-2024-26777, CVE-2024-26839, CVE-2024-26764, CVE-2024-26712, CVE-2024-26788, CVE-2024-26688, CVE-2024-26754, CVE-2021-47070, CVE-2024-26752, CVE-2024-26845, CVE-2024-26791, CVE-2024-26763, CVE-2024-27416, CVE-2024-26779, CVE-2024-26749, CVE-2024-26736, CVE-2024-26840, CVE-2024-26772, CVE-2024-26790)

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-6867-1

Plugin Details

Severity: High

ID: 201865

File Name: ubuntu_USN-6867-1.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: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2024-0841

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1086-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1038-iot

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: 1/28/2024

Reference Information

CVE: CVE-2021-47063, CVE-2021-47070, CVE-2023-52504, CVE-2024-0841, CVE-2024-26688, CVE-2024-26712, CVE-2024-26733, CVE-2024-26735, CVE-2024-26736, CVE-2024-26748, CVE-2024-26749, CVE-2024-26751, CVE-2024-26752, CVE-2024-26754, CVE-2024-26763, CVE-2024-26764, CVE-2024-26766, CVE-2024-26772, CVE-2024-26773, CVE-2024-26777, CVE-2024-26778, CVE-2024-26779, CVE-2024-26788, CVE-2024-26790, CVE-2024-26791, CVE-2024-26793, CVE-2024-26801, CVE-2024-26804, CVE-2024-26805, CVE-2024-26835, CVE-2024-26839, CVE-2024-26840, CVE-2024-26845, CVE-2024-26848, CVE-2024-27405, CVE-2024-27410, CVE-2024-27412, CVE-2024-27413, CVE-2024-27414, CVE-2024-27416, CVE-2024-27417

USN: 6867-1