vulnerability
CentOS Linux: CVE-2022-45873: Moderate: systemd security update (CESA-2023:0954)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | 2022-11-23 | 2023-03-01 | 2025-01-28 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
2022-11-23
Added
2023-03-01
Modified
2025-01-28
Description
systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file.
Solution(s)
centos-upgrade-systemdcentos-upgrade-systemd-containercentos-upgrade-systemd-container-debuginfocentos-upgrade-systemd-debuginfocentos-upgrade-systemd-debugsourcecentos-upgrade-systemd-develcentos-upgrade-systemd-devel-debuginfocentos-upgrade-systemd-journal-remotecentos-upgrade-systemd-journal-remote-debuginfocentos-upgrade-systemd-libscentos-upgrade-systemd-libs-debuginfocentos-upgrade-systemd-oomdcentos-upgrade-systemd-oomd-debuginfocentos-upgrade-systemd-pamcentos-upgrade-systemd-pam-debuginfocentos-upgrade-systemd-resolvedcentos-upgrade-systemd-resolved-debuginfocentos-upgrade-systemd-rpm-macroscentos-upgrade-systemd-standalone-sysusers-debuginfocentos-upgrade-systemd-standalone-tmpfiles-debuginfocentos-upgrade-systemd-udevcentos-upgrade-systemd-udev-debuginfo
References
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