vulnerability
CentOS Linux: CVE-2019-6454: Important: systemd security update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:N/I:N/A:C) | Feb 19, 2019 | Feb 22, 2019 | May 25, 2023 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Feb 19, 2019
Added
Feb 22, 2019
Modified
May 25, 2023
Description
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).
Solutions
centos-upgrade-libgudev1centos-upgrade-libgudev1-develcentos-upgrade-systemdcentos-upgrade-systemd-containercentos-upgrade-systemd-container-debuginfocentos-upgrade-systemd-debuginfocentos-upgrade-systemd-debugsourcecentos-upgrade-systemd-develcentos-upgrade-systemd-journal-gatewaycentos-upgrade-systemd-journal-remotecentos-upgrade-systemd-journal-remote-debuginfocentos-upgrade-systemd-libscentos-upgrade-systemd-libs-debuginfocentos-upgrade-systemd-networkdcentos-upgrade-systemd-pamcentos-upgrade-systemd-pam-debuginfocentos-upgrade-systemd-pythoncentos-upgrade-systemd-resolvedcentos-upgrade-systemd-sysvcentos-upgrade-systemd-testscentos-upgrade-systemd-tests-debuginfocentos-upgrade-systemd-udevcentos-upgrade-systemd-udev-debuginfo
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