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openSUSE 16 Security Update : systemd (openSUSE-SU-2026:20471-1)

medium Nessus Plugin ID 305859

Synopsis

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

Description

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20471-1 advisory.

 Update to systemd v257.13:

 Security issues:

 - CVE-2026-4105: privilege escalation due to improper access control in RegisterMachine D-Bus method (bsc#1259650).
 - CVE-2026-29111: local unprivileged user can trigger an assert in systemd (bsc#1259418).
 - udev: local root execution via malicious hardware devices and unsanitized kernel output (bsc#1259697).

 Non security issues:

 - Avoid shipping (empty) directories and ghost files in /var (jsc#PED-14853).
 - Sign systemd-boot EFI binary on aarch64 (bsc#1258344)
 - terminal-util: stop doing 0/upper bound check in tty_is_vc() (bsc#1255326)

 Changelog:

 - 6941d92dc2 machined: reject invalid class types when registering machines (bsc#1259650 CVE-2026-4105)
 - 03bb697b8d udev: check for invalid chars in various fields received from the kernel (bsc#1259697)
 - 54588d2ded core: validate input cgroup path more prudently (bsc#1259418 CVE-2026-29111)
 - fb9d92682b terminal-util: stop doing 0/upper bound check in tty_is_vc() (bsc#1255326)

 For a complete list of changes, visit:
 https://github.com/openSUSE/systemd/compare/3c53ef3ea20bd43ef587cbdfa7107aeb1ef55654...d349fc5cd4f9ee2b78 84c2610647e92806d14b28

Tenable has extracted the preceding description block directly from the SUSE 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://bugzilla.suse.com/1255326

https://bugzilla.suse.com/1258344

https://bugzilla.suse.com/1259418

https://bugzilla.suse.com/1259650

https://bugzilla.suse.com/1259697

https://www.suse.com/security/cve/CVE-2026-29111

https://www.suse.com/security/cve/CVE-2026-4105

Plugin Details

Severity: Medium

ID: 305859

File Name: openSUSE-2026-20471-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/10/2026

Updated: 4/10/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2026-4105

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

CVSS Score Source: CVE-2026-29111

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:libsystemd0, p-cpe:/a:novell:opensuse:systemd-homed, p-cpe:/a:novell:opensuse:systemd-testsuite, cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:systemd-container, p-cpe:/a:novell:opensuse:systemd, p-cpe:/a:novell:opensuse:systemd-boot, p-cpe:/a:novell:opensuse:systemd-journal-remote, p-cpe:/a:novell:opensuse:systemd-resolved, p-cpe:/a:novell:opensuse:systemd-experimental, p-cpe:/a:novell:opensuse:udev, p-cpe:/a:novell:opensuse:libudev1, p-cpe:/a:novell:opensuse:systemd-networkd, p-cpe:/a:novell:opensuse:systemd-portable, p-cpe:/a:novell:opensuse:systemd-lang, p-cpe:/a:novell:opensuse:systemd-devel

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 4/7/2026

Vulnerability Publication Date: 3/13/2026

Reference Information

CVE: CVE-2026-29111, CVE-2026-4105