Detections
Analytics

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : LXC vulnerabilities (USN-8826-1)

medium Nessus Plugin ID 350932

Synopsis

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

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8826-1 advisory.

 Maher Azzouzi discovered that LXC did not correctly handle logging certain failure messages. An attacker could possibly use this issue to leak sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2022-47952)

 Sam Sanoop discovered that LXC did not correctly handle certain forms of user authorization. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-39402)

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 packages.

See Also

https://ubuntu.com/security/notices/USN-8826-1

Plugin Details

Severity: Medium

ID: 350932

File Name: ubuntu_USN-8826-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/29/2026

Updated: 9/29/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 51.26

CVSS v2

Risk Factor: Low

Base Score: 1.7

Temporal Score: 1.3

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

CVSS Score Source: CVE-2022-47952

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 3

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

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

CVSS v4

Risk Factor: Medium

Base Score: 4.3

Threat Score: 2

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H

CVSS Score Source: CVE-2026-39402

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:liblxc-common, p-cpe:/a:canonical:ubuntu_linux:liblxc1, p-cpe:/a:canonical:ubuntu_linux:liblxc1t64, p-cpe:/a:canonical:ubuntu_linux:libpam-cgfs, p-cpe:/a:canonical:ubuntu_linux:lua-lxc, p-cpe:/a:canonical:ubuntu_linux:lxc-common, p-cpe:/a:canonical:ubuntu_linux:lxc-templates, p-cpe:/a:canonical:ubuntu_linux:lxc-tests, p-cpe:/a:canonical:ubuntu_linux:lxc-utils, p-cpe:/a:canonical:ubuntu_linux:lxc1, p-cpe:/a:canonical:ubuntu_linux:lxc, p-cpe:/a:canonical:ubuntu_linux:python3-lxc

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: 9/28/2026

Vulnerability Publication Date: 1/1/2023

Reference Information

CVE: CVE-2022-47952, CVE-2026-39402

USN: 8826-1