SUSE SLED15 / SLES15 / openSUSE 15 Security Update : systemd (SUSE-SU-2026:1040-1)

medium Nessus Plugin ID 303939

Synopsis

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

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1040-1 advisory.

- 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: check for invalid chars in various fields received from the kernel (bsc#1259697).

Changelog:

- a943e3ce2f machined: reject invalid class types when registering machines
- 71593f77db udev: fix review mixup
- 73a89810b4 udev-builtin-net-id: print cescaped bad attributes
- 0f360bfdc0 udev-builtin-net_id: do not assume the current interface name is ethX
- 40905232e2 udev: ensure tag parsing stays within bounds
- 7bce9026e3 udev: ensure there is space for trailing NUL before calling sprintf
- d018ac1ea3 udev: check for invalid chars in various fields received from the kernel
- aef6e11921 core/cgroup: avoid one unnecessary strjoina()
- cc7426f38a sd-json: fix off-by-one issue when updating parent for array elements
- 26a748f727 core: validate input cgroup path more prudently
- 99d8308fde core/dbus-manager: propagate meaningful dbus errors from EnqueueMarkedJobs

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.

Plugin Details

Severity: Medium

ID: 303939

File Name: suse_SU-2026-1040-1.nasl

Version: 1.1

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 3/27/2026

Updated: 3/27/2026

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: 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:suse_linux:systemd-journal-remote, p-cpe:/a:novell:suse_linux:systemd-sysvcompat, p-cpe:/a:novell:suse_linux:systemd-networkd, p-cpe:/a:novell:suse_linux:systemd-resolved, p-cpe:/a:novell:suse_linux:libudev1, p-cpe:/a:novell:suse_linux:libudev1-32bit, p-cpe:/a:novell:suse_linux:udev, p-cpe:/a:novell:suse_linux:systemd-container, p-cpe:/a:novell:suse_linux:systemd, p-cpe:/a:novell:suse_linux:systemd-lang, p-cpe:/a:novell:suse_linux:systemd-devel, p-cpe:/a:novell:suse_linux:libsystemd0, p-cpe:/a:novell:suse_linux:libsystemd0-32bit, p-cpe:/a:novell:suse_linux:systemd-network, cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:systemd-32bit, p-cpe:/a:novell:suse_linux:systemd-coredump, p-cpe:/a:novell:suse_linux:systemd-doc

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: 3/25/2026

Vulnerability Publication Date: 3/13/2026

Reference Information

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

SuSE: SUSE-SU-2026:1040-1

Detections

Analytics