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Ubuntu 23.10 : Linux kernel (Azure) vulnerabilities (USN-6573-1)

high Nessus Plugin ID 187807

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Synopsis

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

Description

The remote Ubuntu 23.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6573-1 advisory.

 Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-39189)

 Kyle Zeng discovered that the IPv4 implementation in the Linux kernel did not properly handle socket buffers (skb) when performing IP routing in certain circumstances, leading to a null pointer dereference vulnerability. A privileged attacker could use this to cause a denial of service (system crash).
 (CVE-2023-42754)

 Yikebaer Aizezi discovered that the ext4 file system implementation in the Linux kernel contained a use- after-free vulnerability when handling inode extent metadata. An attacker could use this to construct a malicious ext4 file system image that, when mounted, could cause a denial of service (system crash).
 (CVE-2023-45898)

 Jason Wang discovered that the virtio ring implementation in the Linux kernel did not properly handle iov buffers in some situations. A local attacker in a guest VM could use this to cause a denial of service (host system crash). (CVE-2023-5158)

 Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel did not properly handle queue initialization failures in certain situations, leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
 (CVE-2023-5178)

 Budimir Markovic discovered that the perf subsystem in the Linux kernel did not properly handle event groups, leading to an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5717)

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-6573-1

Plugin Details

Severity: High

ID: 187807

File Name: ubuntu_USN-6573-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 1/9/2024

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: 6.7

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

CVSS Score Source: CVE-2023-5178

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:23.10, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.5.0-1010-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-6.5.0-1010-azure-fde

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: 1/9/2024

Vulnerability Publication Date: 9/25/2023

Reference Information

CVE: CVE-2023-39189, CVE-2023-42754, CVE-2023-45898, CVE-2023-5158, CVE-2023-5178, CVE-2023-5717

USN: 6573-1