SUSE-SU-2026:1040-1: important: Security update for systemd

SLE-SECURITY-UPDATES null at suse.de
Thu Mar 26 08:30:49 UTC 2026 


# Security update for systemd

Announcement ID: SUSE-SU-2026:1040-1  
Release Date: 2026-03-25T12:43:25Z  
Rating: important  
References:

  * bsc#1259418
  * bsc#1259650
  * bsc#1259697

  
Cross-References:

  * CVE-2026-29111
  * CVE-2026-4105

  
CVSS scores:

  * CVE-2026-29111 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-29111 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-29111 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-4105 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-4105 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-4105 ( NVD ):  6.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

  
Affected Products:

  * Basesystem Module 15-SP7
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7
  * SUSE Package Hub 15 15-SP7

  
  
An update that solves two vulnerabilities and has one security fix can now be
installed.

## Description:

This update for systemd fixes the following 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: 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

## Special Instructions and Notes:

  * Please reboot the system after installing this update.

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-1040=1 openSUSE-SLE-15.6-2026-1040=1

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1040=1

  * SUSE Package Hub 15 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-1040=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1040=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1040=1

## Package List:

  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
    * systemd-container-debuginfo-254.27-150600.4.62.1
    * systemd-homed-debuginfo-254.27-150600.4.62.1
    * systemd-debuginfo-254.27-150600.4.62.1
    * libudev1-debuginfo-254.27-150600.4.62.1
    * systemd-sysvcompat-254.27-150600.4.62.1
    * systemd-resolved-254.27-150600.4.62.1
    * systemd-coredump-254.27-150600.4.62.1
    * systemd-portable-debuginfo-254.27-150600.4.62.1
    * systemd-coredump-debuginfo-254.27-150600.4.62.1
    * systemd-resolved-debuginfo-254.27-150600.4.62.1
    * systemd-devel-254.27-150600.4.62.1
    * systemd-homed-254.27-150600.4.62.1
    * systemd-mini-devel-254.27-150600.4.62.1
    * systemd-mini-container-254.27-150600.4.62.1
    * libsystemd0-254.27-150600.4.62.1
    * systemd-experimental-254.27-150600.4.62.1
    * systemd-journal-remote-debuginfo-254.27-150600.4.62.1
    * systemd-sysvcompat-debuginfo-254.27-150600.4.62.1
    * systemd-container-254.27-150600.4.62.1
    * udev-254.27-150600.4.62.1
    * systemd-mini-debuginfo-254.27-150600.4.62.1
    * systemd-journal-remote-254.27-150600.4.62.1
    * systemd-portable-254.27-150600.4.62.1
    * systemd-doc-254.27-150600.4.62.1
    * libsystemd0-mini-debuginfo-254.27-150600.4.62.1
    * systemd-debugsource-254.27-150600.4.62.1
    * systemd-mini-container-debuginfo-254.27-150600.4.62.1
    * systemd-mini-254.27-150600.4.62.1
    * systemd-networkd-254.27-150600.4.62.1
    * systemd-network-254.27-150600.4.62.1
    * systemd-mini-debugsource-254.27-150600.4.62.1
    * udev-mini-254.27-150600.4.62.1
    * libudev-mini1-254.27-150600.4.62.1
    * systemd-254.27-150600.4.62.1
    * systemd-experimental-debuginfo-254.27-150600.4.62.1
    * systemd-testsuite-debuginfo-254.27-150600.4.62.1
    * systemd-networkd-debuginfo-254.27-150600.4.62.1
    * systemd-testsuite-254.27-150600.4.62.1
    * libsystemd0-mini-254.27-150600.4.62.1
    * udev-mini-debuginfo-254.27-150600.4.62.1
    * udev-debuginfo-254.27-150600.4.62.1
    * libudev-mini1-debuginfo-254.27-150600.4.62.1
    * libudev1-254.27-150600.4.62.1
    * libsystemd0-debuginfo-254.27-150600.4.62.1
  * openSUSE Leap 15.6 (x86_64)
    * libudev1-32bit-debuginfo-254.27-150600.4.62.1
    * systemd-32bit-debuginfo-254.27-150600.4.62.1
    * systemd-devel-32bit-254.27-150600.4.62.1
    * systemd-32bit-254.27-150600.4.62.1
    * libsystemd0-32bit-254.27-150600.4.62.1
    * libudev1-32bit-254.27-150600.4.62.1
    * libsystemd0-32bit-debuginfo-254.27-150600.4.62.1
  * openSUSE Leap 15.6 (aarch64 x86_64 i586)
    * systemd-boot-debuginfo-254.27-150600.4.62.1
    * systemd-boot-254.27-150600.4.62.1
  * openSUSE Leap 15.6 (noarch)
    * systemd-lang-254.27-150600.4.62.1
  * openSUSE Leap 15.6 (aarch64_ilp32)
    * libsystemd0-64bit-254.27-150600.4.62.1
    * systemd-devel-64bit-254.27-150600.4.62.1
    * systemd-64bit-debuginfo-254.27-150600.4.62.1
    * libudev1-64bit-254.27-150600.4.62.1
    * libudev1-64bit-debuginfo-254.27-150600.4.62.1
    * libsystemd0-64bit-debuginfo-254.27-150600.4.62.1
    * systemd-64bit-254.27-150600.4.62.1
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * systemd-container-debuginfo-254.27-150600.4.62.1
    * systemd-debuginfo-254.27-150600.4.62.1
    * libudev1-debuginfo-254.27-150600.4.62.1
    * systemd-sysvcompat-254.27-150600.4.62.1
    * systemd-resolved-254.27-150600.4.62.1
    * systemd-coredump-254.27-150600.4.62.1
    * systemd-coredump-debuginfo-254.27-150600.4.62.1
    * systemd-resolved-debuginfo-254.27-150600.4.62.1
    * systemd-devel-254.27-150600.4.62.1
    * libsystemd0-254.27-150600.4.62.1
    * systemd-journal-remote-debuginfo-254.27-150600.4.62.1
    * systemd-sysvcompat-debuginfo-254.27-150600.4.62.1
    * systemd-container-254.27-150600.4.62.1
    * udev-254.27-150600.4.62.1
    * systemd-journal-remote-254.27-150600.4.62.1
    * systemd-doc-254.27-150600.4.62.1
    * systemd-debugsource-254.27-150600.4.62.1
    * systemd-254.27-150600.4.62.1
    * udev-debuginfo-254.27-150600.4.62.1
    * libudev1-254.27-150600.4.62.1
    * libsystemd0-debuginfo-254.27-150600.4.62.1
  * Basesystem Module 15-SP7 (noarch)
    * systemd-lang-254.27-150600.4.62.1
  * Basesystem Module 15-SP7 (x86_64)
    * libudev1-32bit-debuginfo-254.27-150600.4.62.1
    * systemd-32bit-debuginfo-254.27-150600.4.62.1
    * systemd-32bit-254.27-150600.4.62.1
    * libsystemd0-32bit-254.27-150600.4.62.1
    * libudev1-32bit-254.27-150600.4.62.1
    * libsystemd0-32bit-debuginfo-254.27-150600.4.62.1
  * SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x x86_64)
    * systemd-networkd-debuginfo-254.27-150600.4.62.1
    * systemd-debuginfo-254.27-150600.4.62.1
    * systemd-debugsource-254.27-150600.4.62.1
    * systemd-network-254.27-150600.4.62.1
    * systemd-networkd-254.27-150600.4.62.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * systemd-resolved-254.27-150600.4.62.1
    * udev-254.27-150600.4.62.1
    * systemd-coredump-debuginfo-254.27-150600.4.62.1
    * systemd-254.27-150600.4.62.1
    * systemd-devel-254.27-150600.4.62.1
    * systemd-resolved-debuginfo-254.27-150600.4.62.1
    * systemd-journal-remote-254.27-150600.4.62.1
    * systemd-container-debuginfo-254.27-150600.4.62.1
    * systemd-doc-254.27-150600.4.62.1
    * libsystemd0-254.27-150600.4.62.1
    * systemd-debuginfo-254.27-150600.4.62.1
    * systemd-debugsource-254.27-150600.4.62.1
    * udev-debuginfo-254.27-150600.4.62.1
    * libudev1-debuginfo-254.27-150600.4.62.1
    * systemd-sysvcompat-254.27-150600.4.62.1
    * libudev1-254.27-150600.4.62.1
    * libsystemd0-debuginfo-254.27-150600.4.62.1
    * systemd-sysvcompat-debuginfo-254.27-150600.4.62.1
    * systemd-coredump-254.27-150600.4.62.1
    * systemd-container-254.27-150600.4.62.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
    * systemd-lang-254.27-150600.4.62.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (x86_64)
    * libudev1-32bit-debuginfo-254.27-150600.4.62.1
    * systemd-32bit-debuginfo-254.27-150600.4.62.1
    * systemd-32bit-254.27-150600.4.62.1
    * libsystemd0-32bit-254.27-150600.4.62.1
    * libudev1-32bit-254.27-150600.4.62.1
    * libsystemd0-32bit-debuginfo-254.27-150600.4.62.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * systemd-resolved-254.27-150600.4.62.1
    * udev-254.27-150600.4.62.1
    * systemd-coredump-debuginfo-254.27-150600.4.62.1
    * systemd-254.27-150600.4.62.1
    * systemd-devel-254.27-150600.4.62.1
    * systemd-resolved-debuginfo-254.27-150600.4.62.1
    * systemd-journal-remote-254.27-150600.4.62.1
    * systemd-container-debuginfo-254.27-150600.4.62.1
    * systemd-doc-254.27-150600.4.62.1
    * libsystemd0-254.27-150600.4.62.1
    * systemd-debuginfo-254.27-150600.4.62.1
    * systemd-debugsource-254.27-150600.4.62.1
    * udev-debuginfo-254.27-150600.4.62.1
    * libudev1-debuginfo-254.27-150600.4.62.1
    * systemd-sysvcompat-254.27-150600.4.62.1
    * libudev1-254.27-150600.4.62.1
    * libsystemd0-debuginfo-254.27-150600.4.62.1
    * systemd-sysvcompat-debuginfo-254.27-150600.4.62.1
    * systemd-coredump-254.27-150600.4.62.1
    * systemd-container-254.27-150600.4.62.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
    * systemd-lang-254.27-150600.4.62.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (x86_64)
    * libudev1-32bit-debuginfo-254.27-150600.4.62.1
    * systemd-32bit-debuginfo-254.27-150600.4.62.1
    * systemd-32bit-254.27-150600.4.62.1
    * libsystemd0-32bit-254.27-150600.4.62.1
    * libudev1-32bit-254.27-150600.4.62.1
    * libsystemd0-32bit-debuginfo-254.27-150600.4.62.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-29111.html
  * https://www.suse.com/security/cve/CVE-2026-4105.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1259418
  * https://bugzilla.suse.com/show_bug.cgi?id=1259650
  * https://bugzilla.suse.com/show_bug.cgi?id=1259697

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