Detections
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Ubuntu 22.04 LTS / 24.04 LTS / 25.10 : systemd vulnerabilities (USN-8402-1)

medium Nessus Plugin ID 320397

Synopsis

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

Description

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8402-1 advisory.

 It was discovered that systemd-nspawn incorrectly handled certain optional configuration files. A local attacker could possibly use this issue to escape to the host system and execute arbitrary code.
 (CVE-2026-40226)

 It was discovered that systemd-resolved incorrectly validated DNSSEC records for signed domains. An attacker could possibly use this issue to manipulate DNS records. This issue only affected Ubuntu 22.04 LTS. (CVE-2023-7008)

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-8402-1

Plugin Details

Severity: Medium

ID: 320397

File Name: ubuntu_USN-8402-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/11/2026

Updated: 6/11/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2023-7008

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libnss-resolve, p-cpe:/a:canonical:ubuntu_linux:libsystemd0, p-cpe:/a:canonical:ubuntu_linux:libnss-myhostname, p-cpe:/a:canonical:ubuntu_linux:systemd-coredump, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:systemd-dev, p-cpe:/a:canonical:ubuntu_linux:libpam-systemd, p-cpe:/a:canonical:ubuntu_linux:systemd, p-cpe:/a:canonical:ubuntu_linux:systemd-standalone-shutdown, p-cpe:/a:canonical:ubuntu_linux:udev, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:canonical:ubuntu_linux:systemd-ukify, p-cpe:/a:canonical:ubuntu_linux:systemd-boot-efi, p-cpe:/a:canonical:ubuntu_linux:systemd-homed, p-cpe:/a:canonical:ubuntu_linux:systemd-standalone-sysusers, p-cpe:/a:canonical:ubuntu_linux:systemd-timesyncd, p-cpe:/a:canonical:ubuntu_linux:systemd-resolved, p-cpe:/a:canonical:ubuntu_linux:systemd-container, p-cpe:/a:canonical:ubuntu_linux:systemd-repart, p-cpe:/a:canonical:ubuntu_linux:libsystemd-dev, p-cpe:/a:canonical:ubuntu_linux:libudev1, p-cpe:/a:canonical:ubuntu_linux:systemd-journal-remote, p-cpe:/a:canonical:ubuntu_linux:libsystemd-shared, p-cpe:/a:canonical:ubuntu_linux:systemd-oomd, p-cpe:/a:canonical:ubuntu_linux:systemd-boot, p-cpe:/a:canonical:ubuntu_linux:libnss-systemd, p-cpe:/a:canonical:ubuntu_linux:systemd-boot-tools, p-cpe:/a:canonical:ubuntu_linux:systemd-cryptsetup, p-cpe:/a:canonical:ubuntu_linux:systemd-standalone-tmpfiles, p-cpe:/a:canonical:ubuntu_linux:systemd-tests, p-cpe:/a:canonical:ubuntu_linux:systemd-userdbd, p-cpe:/a:canonical:ubuntu_linux:libudev-dev, p-cpe:/a:canonical:ubuntu_linux:systemd-sysv, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libnss-mymachines

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/8/2026

Vulnerability Publication Date: 6/13/2023

Reference Information

CVE: CVE-2023-7008, CVE-2026-40226

USN: 8402-1