vulnerability
Red Hat: CVE-2019-6454: CVE-2019-6454 systemd: Insufficient input validation in bus_process_object() resulting in PID 1 crash (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:N/I:N/A:C) | Feb 19, 2019 | Feb 20, 2019 | Nov 27, 2024 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Feb 19, 2019
Added
Feb 20, 2019
Modified
Nov 27, 2024
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).
Solution(s)
redhat-upgrade-libgudev1redhat-upgrade-libgudev1-develredhat-upgrade-systemdredhat-upgrade-systemd-containerredhat-upgrade-systemd-container-debuginforedhat-upgrade-systemd-debuginforedhat-upgrade-systemd-debugsourceredhat-upgrade-systemd-develredhat-upgrade-systemd-journal-gatewayredhat-upgrade-systemd-journal-remoteredhat-upgrade-systemd-journal-remote-debuginforedhat-upgrade-systemd-libsredhat-upgrade-systemd-libs-debuginforedhat-upgrade-systemd-networkdredhat-upgrade-systemd-pamredhat-upgrade-systemd-pam-debuginforedhat-upgrade-systemd-pythonredhat-upgrade-systemd-resolvedredhat-upgrade-systemd-sysvredhat-upgrade-systemd-testsredhat-upgrade-systemd-tests-debuginforedhat-upgrade-systemd-udevredhat-upgrade-systemd-udev-debuginfo
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