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security advisorySuSEprivilege escalation

SUSE Linux 15 systemd Important Access Control Issues 2026-1040-1

An update that solves two vulnerabilities and has one security fix can now be installed.. # 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 thecurrent 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 . Two critical issues addressed in SUSE systemd update enhance access control and system integrity, recommended for immediate action.. systemd SUSE update important access control patch. . Severity: Important. LinuxSecurity.com Team

Mar 26, 2026 •Important SuSE