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Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-7506-1)

high Nessus Plugin ID 235726

Synopsis

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

Description

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7506-1 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-2022-23041)

 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:

 - Hardware crypto device drivers;

 - GPU drivers;

 - IIO subsystem;

 - Media drivers;

 - Network drivers;

 - SCSI subsystem;

 - SPI subsystem;

 - USB Gadget drivers;

 - Ceph distributed file system;

 - File systems infrastructure;

 - JFS file system;

 - Network file system (NFS) client;

 - Network file system (NFS) server daemon;

 - NILFS2 file system;

 - SMB network file system;

 - CAN network layer;

 - IPv6 networking;

 - MAC80211 subsystem;

 - Netfilter;

 - Netlink;

 - Network traffic control;

 - SCTP protocol;

 - TIPC protocol; (CVE-2024-46780, CVE-2021-47163, CVE-2024-46771, CVE-2021-47506, CVE-2024-36934, CVE-2024-35864, CVE-2024-26915, CVE-2021-47150, CVE-2024-50256, CVE-2024-53173, CVE-2024-53066, CVE-2024-53063, CVE-2021-47245, CVE-2024-26996, CVE-2024-56642, CVE-2021-47219, CVE-2024-56631, CVE-2021-47587, CVE-2021-47191, CVE-2023-52741, CVE-2021-46959, CVE-2024-26689, CVE-2024-26974, CVE-2024-56770, CVE-2024-56598, CVE-2024-49944, CVE-2024-50237, CVE-2024-53140, CVE-2024-56650, CVE-2021-47500, CVE-2025-21971)

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-7506-1

Plugin Details

Severity: High

ID: 235726

File Name: ubuntu_USN-7506-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 5/12/2025

Updated: 5/12/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2022-23041

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-2024-56642

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1144-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-268-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1181-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-268-generic

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/12/2025

Vulnerability Publication Date: 7/21/2021

Reference Information

CVE: CVE-2021-46959, CVE-2021-47150, CVE-2021-47163, CVE-2021-47191, CVE-2021-47219, CVE-2021-47245, CVE-2021-47500, CVE-2021-47506, CVE-2021-47587, CVE-2022-23041, CVE-2023-52741, CVE-2024-26689, CVE-2024-26915, CVE-2024-26974, CVE-2024-26996, CVE-2024-35864, CVE-2024-36934, CVE-2024-46771, CVE-2024-46780, CVE-2024-49944, CVE-2024-50237, CVE-2024-50256, CVE-2024-53063, CVE-2024-53066, CVE-2024-53140, CVE-2024-53173, CVE-2024-56598, CVE-2024-56631, CVE-2024-56642, CVE-2024-56650, CVE-2024-56770, CVE-2025-21971

USN: 7506-1