SUSE SLES12 Security Update : systemd (SUSE-SU-2026:0991-1)

medium Nessus Plugin ID 303575

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2026:0991-1 advisory.

This update for systemd fixes the following issue:

- CVE-2026-4105: privilege escalation due to improper access control in RegisterMachine D-Bus method (bsc#1259650).
- udev: check for invalid chars in various fields received from the kernel (bsc#1259697).

Changelog:

cbf8ee66ee machined: reject invalid class types when registering machines 1a55ad48da udev: fix review mixup 1eba76668c udev-builtin-net-id: print cescaped bad attributes cbd4b55380 udev: ensure tag parsing stays within bounds 5973d3b1cc udev: ensure there is space for trailing NUL before calling sprintf f038eb6c8b udev: check for invalid chars in various fields received from the kernel

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 303575

File Name: suse_SU-2026-0991-1.nasl

Version: 1.2

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 3/25/2026

Updated: 3/26/2026

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

Risk Information

VPR

Risk Factor: High

Score: 8.4

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: 6.7

Temporal Score: 5.8

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:libudev1, p-cpe:/a:novell:suse_linux:libudev-devel, p-cpe:/a:novell:suse_linux:libudev1-32bit, p-cpe:/a:novell:suse_linux:udev, p-cpe:/a:novell:suse_linux:systemd, p-cpe:/a:novell:suse_linux:systemd-bash-completion, p-cpe:/a:novell:suse_linux:libsystemd0, p-cpe:/a:novell:suse_linux:libsystemd0-32bit, p-cpe:/a:novell:suse_linux:systemd-32bit, p-cpe:/a:novell:suse_linux:systemd-devel, p-cpe:/a:novell:suse_linux:systemd-sysvinit

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: 3/24/2026

Vulnerability Publication Date: 3/13/2026

Reference Information

CVE: CVE-2026-4105

SuSE: SUSE-SU-2026:0991-1

Detections

Analytics