An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic).
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade libgudev1Upgrade libgudev1-develUpgrade systemd-resolvedUpgrade systemd-libsUpgrade systemd-networkdUpgrade systemd-sysvUpgrade systemdUpgrade systemd-journal-gatewayUpgrade systemd-develUpgrade systemd-debuginfoUpgrade systemd-python | Apr 27, 2020 | Mar 21, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Mar 17, 2019 |
| Centos_linux | — | Upgrade systemd-testsUpgrade systemd-libs-debuginfoUpgrade systemd-container-debuginfoUpgrade systemd-debugsourceUpgrade systemd-containerUpgrade systemd-journal-remoteUpgrade systemd-sysvUpgrade systemd-tests-debuginfoUpgrade systemd-networkdUpgrade systemdUpgrade systemd-journal-remote-debuginfoUpgrade systemd-udevUpgrade systemd-pamUpgrade libgudev1-develUpgrade systemd-udev-debuginfoUpgrade systemd-debuginfoUpgrade systemd-develUpgrade systemd-journal-gatewayUpgrade systemd-pam-debuginfoUpgrade systemd-libsUpgrade systemd-resolvedUpgrade systemd-pythonUpgrade libgudev1 | Feb 22, 2019 | Feb 19, 2019 |
| Debian | — | Upgrade systemd | Feb 20, 2019 | Feb 18, 2019 |
| Gentoo Linux | — | Upgrade sys-apps/systemd. | Mar 11, 2019 | Mar 10, 2019 |
| Huawei Euleros 2_0_sp2 | — | Upgrade systemd-libsUpgrade systemd-develUpgrade systemd-sysvUpgrade systemd-pythonUpgrade libgudev1-develUpgrade libgudev1Upgrade systemd | Apr 2, 2019 | Mar 21, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade libgudev1Upgrade systemdUpgrade systemd-pythonUpgrade systemd-libsUpgrade systemd-sysvUpgrade libgudev1-develUpgrade systemd-devel | Mar 27, 2019 | Mar 21, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade systemd-pythonUpgrade systemdUpgrade systemd-develUpgrade systemd-libsUpgrade systemd-sysvUpgrade libgudev1-develUpgrade libgudev1 | Apr 3, 2019 | Mar 21, 2019 |
| Mcafee Web Gateway | — | Upgrade to the latest version of Web Gateway | Sep 23, 2026 | Mar 21, 2019 |
| Oracle_linux | — | Upgrade systemd-pythonUpgrade systemd-testsUpgrade libgudev1-develUpgrade systemd-journal-remoteUpgrade libgudev1Upgrade systemd-sysvUpgrade systemdUpgrade systemd-udevUpgrade systemd-develUpgrade systemd-libsUpgrade systemd-journal-gatewayUpgrade systemd-resolvedUpgrade systemd-containerUpgrade systemd-pamUpgrade systemd-networkd | Jul 21, 2020 | Feb 18, 2019 |
| Redhat Openshift | — | Upgrade redhat-coreos | Dec 29, 2020 | Mar 21, 2019 |
| Redhat_linux | — | Upgrade systemd-container-debuginfoUpgrade systemd-pam-debuginfoUpgrade systemd-journal-remoteUpgrade systemd-tests-debuginfoUpgrade libgudev1-develUpgrade systemd-udevUpgrade systemd-journal-gatewayUpgrade systemd-pamUpgrade systemd-testsUpgrade systemd-debugsourceUpgrade systemd-sysvUpgrade systemd-debuginfoUpgrade systemd-resolvedUpgrade systemd-libsUpgrade systemd-containerUpgrade systemd-pythonUpgrade systemd-udev-debuginfoUpgrade systemdUpgrade systemd-networkdUpgrade libgudev1Upgrade systemd-develUpgrade systemd-libs-debuginfoUpgrade systemd-journal-remote-debuginfo | Feb 20, 2019 | Feb 19, 2019 |
| Suse | — | Upgrade systemd-langUpgrade libudev-mini-develUpgrade systemd-docUpgrade systemd-containerUpgrade nss-myhostname-32bitUpgrade systemd-mini-coredump-miniUpgrade nss-mymachinesUpgrade systemd-mini-bash-completionUpgrade systemd-mini-develUpgrade systemd-journal-remoteUpgrade systemdUpgrade libudev-devel-32bitUpgrade udev-miniUpgrade systemd-miniUpgrade libgudev-1_0-0Upgrade systemd-mini-sysvinitUpgrade systemd-mini-container-miniUpgrade systemd-bash-completionUpgrade libudev-develUpgrade systemd-coredumpUpgrade libsystemd0Upgrade systemd-32bitUpgrade udevUpgrade systemd-develUpgrade systemd-loggerUpgrade libudev1-32bitUpgrade nss-myhostnameUpgrade libgudev-1_0-develUpgrade libudev-mini1Upgrade libsystemd0-32bitUpgrade libsystemd0-miniUpgrade typelib-1_0-GUdev-1_0Upgrade nss-mymachines-32bitUpgrade systemd-sysvinitUpgrade libgudev-1_0-0-32bitUpgrade nss-systemdUpgrade libudev1 | Feb 19, 2019 | Feb 19, 2019 |
| Ubuntu | — | Upgrade libsystemd0Upgrade systemd | Feb 27, 2019 | Feb 18, 2019 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Mar 17, 2019 |
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