SUSE-SU-2026:0990-1: important: Security update for systemd
SLE-SECURITY-UPDATES
null at suse.de
Tue Mar 24 12:32:31 UTC 2026
# Security update for systemd
Announcement ID: SUSE-SU-2026:0990-1
Release Date: 2026-03-24T07:22:54Z
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:
* openSUSE Leap 15.3
* SUSE Linux Enterprise Micro 5.2
* SUSE Linux Enterprise Micro for Rancher 5.2
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:
* 566517ffcb machined: reject invalid class types when registering machines
* abbdd89d78 udev: fix review mixup
* c9cedd26be udev-builtin-net-id: print cescaped bad attributes
* c0f4ec3db9 udev: ensure tag parsing stays within bounds
* 38afcb73cc udev: ensure there is space for trailing NUL before calling
sprintf
* a64247de62 udev: check for invalid chars in various fields received from the
kernel
* ecce32966e core/cgroup: avoid one unnecessary strjoina()
* 6abd2b5bd2 core: validate input cgroup path more prudently
* 2d7d93d6c1 alloc-util: add strdupa_safe() + strndupa_safe() and use it
everywhere
## 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 15.3
zypper in -t patch SUSE-2026-990=1
* SUSE Linux Enterprise Micro 5.2
zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-990=1
* SUSE Linux Enterprise Micro for Rancher 5.2
zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-990=1
## Package List:
* openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
* udev-mini-246.16-150300.7.65.1
* systemd-mini-sysvinit-246.16-150300.7.65.1
* libudev-mini1-246.16-150300.7.65.1
* libsystemd0-mini-246.16-150300.7.65.1
* systemd-doc-246.16-150300.7.65.1
* systemd-debuginfo-246.16-150300.7.65.1
* libsystemd0-mini-debuginfo-246.16-150300.7.65.1
* libudev1-debuginfo-246.16-150300.7.65.1
* nss-myhostname-debuginfo-246.16-150300.7.65.1
* libsystemd0-debuginfo-246.16-150300.7.65.1
* systemd-journal-remote-246.16-150300.7.65.1
* systemd-journal-remote-debuginfo-246.16-150300.7.65.1
* systemd-mini-debugsource-246.16-150300.7.65.1
* nss-myhostname-246.16-150300.7.65.1
* nss-resolve-debuginfo-246.16-150300.7.65.1
* systemd-network-debuginfo-246.16-150300.7.65.1
* systemd-sysvinit-246.16-150300.7.65.1
* libudev-mini1-debuginfo-246.16-150300.7.65.1
* systemd-debugsource-246.16-150300.7.65.1
* udev-246.16-150300.7.65.1
* libudev-devel-246.16-150300.7.65.1
* libsystemd0-246.16-150300.7.65.1
* systemd-container-debuginfo-246.16-150300.7.65.1
* systemd-coredump-246.16-150300.7.65.1
* udev-debuginfo-246.16-150300.7.65.1
* systemd-mini-debuginfo-246.16-150300.7.65.1
* systemd-portable-246.16-150300.7.65.1
* nss-resolve-246.16-150300.7.65.1
* systemd-mini-devel-246.16-150300.7.65.1
* systemd-portable-debuginfo-246.16-150300.7.65.1
* systemd-246.16-150300.7.65.1
* libudev1-246.16-150300.7.65.1
* nss-mymachines-debuginfo-246.16-150300.7.65.1
* nss-mymachines-246.16-150300.7.65.1
* systemd-mini-container-246.16-150300.7.65.1
* systemd-mini-246.16-150300.7.65.1
* nss-systemd-246.16-150300.7.65.1
* udev-mini-debuginfo-246.16-150300.7.65.1
* systemd-coredump-debuginfo-246.16-150300.7.65.1
* systemd-devel-246.16-150300.7.65.1
* systemd-mini-container-debuginfo-246.16-150300.7.65.1
* systemd-logger-246.16-150300.7.65.1
* systemd-network-246.16-150300.7.65.1
* libudev-mini-devel-246.16-150300.7.65.1
* systemd-container-246.16-150300.7.65.1
* nss-systemd-debuginfo-246.16-150300.7.65.1
* openSUSE Leap 15.3 (x86_64)
* libudev1-32bit-debuginfo-246.16-150300.7.65.1
* nss-mymachines-32bit-246.16-150300.7.65.1
* systemd-32bit-246.16-150300.7.65.1
* nss-mymachines-32bit-debuginfo-246.16-150300.7.65.1
* libsystemd0-32bit-debuginfo-246.16-150300.7.65.1
* systemd-32bit-debuginfo-246.16-150300.7.65.1
* nss-myhostname-32bit-246.16-150300.7.65.1
* libudev-devel-32bit-246.16-150300.7.65.1
* libudev1-32bit-246.16-150300.7.65.1
* nss-myhostname-32bit-debuginfo-246.16-150300.7.65.1
* libsystemd0-32bit-246.16-150300.7.65.1
* openSUSE Leap 15.3 (noarch)
* systemd-lang-246.16-150300.7.65.1
* openSUSE Leap 15.3 (aarch64_ilp32)
* nss-myhostname-64bit-debuginfo-246.16-150300.7.65.1
* nss-mymachines-64bit-debuginfo-246.16-150300.7.65.1
* nss-mymachines-64bit-246.16-150300.7.65.1
* libudev1-64bit-debuginfo-246.16-150300.7.65.1
* libsystemd0-64bit-debuginfo-246.16-150300.7.65.1
* systemd-64bit-246.16-150300.7.65.1
* nss-myhostname-64bit-246.16-150300.7.65.1
* libsystemd0-64bit-246.16-150300.7.65.1
* libudev-devel-64bit-246.16-150300.7.65.1
* libudev1-64bit-246.16-150300.7.65.1
* systemd-64bit-debuginfo-246.16-150300.7.65.1
* SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
* udev-debuginfo-246.16-150300.7.65.1
* systemd-sysvinit-246.16-150300.7.65.1
* systemd-debuginfo-246.16-150300.7.65.1
* systemd-246.16-150300.7.65.1
* libudev1-246.16-150300.7.65.1
* libudev1-debuginfo-246.16-150300.7.65.1
* libsystemd0-debuginfo-246.16-150300.7.65.1
* systemd-debugsource-246.16-150300.7.65.1
* systemd-journal-remote-246.16-150300.7.65.1
* systemd-journal-remote-debuginfo-246.16-150300.7.65.1
* udev-246.16-150300.7.65.1
* systemd-container-246.16-150300.7.65.1
* libsystemd0-246.16-150300.7.65.1
* systemd-container-debuginfo-246.16-150300.7.65.1
* SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
* udev-debuginfo-246.16-150300.7.65.1
* systemd-sysvinit-246.16-150300.7.65.1
* systemd-debuginfo-246.16-150300.7.65.1
* systemd-246.16-150300.7.65.1
* libudev1-246.16-150300.7.65.1
* libudev1-debuginfo-246.16-150300.7.65.1
* libsystemd0-debuginfo-246.16-150300.7.65.1
* systemd-debugsource-246.16-150300.7.65.1
* systemd-journal-remote-246.16-150300.7.65.1
* systemd-journal-remote-debuginfo-246.16-150300.7.65.1
* udev-246.16-150300.7.65.1
* systemd-container-246.16-150300.7.65.1
* libsystemd0-246.16-150300.7.65.1
* systemd-container-debuginfo-246.16-150300.7.65.1
## 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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