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Ubuntu 14.04 LTS / 16.04 LTS : Linux kernel vulnerabilities (USN-9033-1)

high Nessus Plugin ID 381375

Synopsis

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

Description

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-9033-1 advisory.

 Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access rights of device backends. An attacker could possibly use a malicious Xen backend to gain access to memory pages of a guest VM or cause a denial of service in the guest.
 (CVE-2022-23036, CVE-2022-23037)

 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:

 - GPU drivers;

 - IIO ADC drivers;

 - Multiple devices driver;

 - Ethernet bonding driver;

 - Network drivers;

 - PCI subsystem;

 - VFIO drivers;

 - File systems infrastructure;

 - F2FS file system;

 - JFS file system;

 - Network file system (NFS) server daemon;

 - OCFS2 file system;

 - Overlay file system;

 - Tracing infrastructure;

 - IUCV driver; (CVE-2021-47633, CVE-2022-49058, CVE-2022-49170, CVE-2023-52784, CVE-2024-53194, CVE-2024-53210, CVE-2024-53214, CVE-2024-56570, CVE-2024-56616, CVE-2024-56763, CVE-2024-56779, CVE-2024-57904, CVE-2025-21664, CVE-2025-38604, CVE-2025-39743, CVE-2026-43456, CVE-2026-74350)

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-9033-1

Plugin Details

Severity: High

ID: 381375

File Name: ubuntu_USN-9033-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 11/14/2026

Updated: 11/14/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 99.02

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.3

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

CVSS Score Source: CVE-2022-23037

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

CVSS Score Source: CVE-2025-39743

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1163-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1200-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-291-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-291-lowlatency

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/10/2026

Vulnerability Publication Date: 7/21/2021

Reference Information

CVE: CVE-2021-47633, CVE-2022-23036, CVE-2022-23037, CVE-2022-49058, CVE-2022-49170, CVE-2023-52784, CVE-2024-53194, CVE-2024-53210, CVE-2024-53214, CVE-2024-56570, CVE-2024-56616, CVE-2024-56763, CVE-2024-56779, CVE-2024-57904, CVE-2025-21664, CVE-2025-38604, CVE-2025-39743, CVE-2026-43456, CVE-2026-74350

USN: 9033-1