vulnerability
Red Hat: CVE-2022-45873: deadlock in systemd-coredump via a crash with a long backtrace (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Nov 23, 2022 | Mar 1, 2023 | Jul 9, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Nov 23, 2022
Added
Mar 1, 2023
Modified
Jul 9, 2025
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)
no-fix-redhat-rpm-packageredhat-upgrade-systemdredhat-upgrade-systemd-containerredhat-upgrade-systemd-container-debuginforedhat-upgrade-systemd-debuginforedhat-upgrade-systemd-debugsourceredhat-upgrade-systemd-develredhat-upgrade-systemd-devel-debuginforedhat-upgrade-systemd-journal-remoteredhat-upgrade-systemd-journal-remote-debuginforedhat-upgrade-systemd-libsredhat-upgrade-systemd-libs-debuginforedhat-upgrade-systemd-oomdredhat-upgrade-systemd-oomd-debuginforedhat-upgrade-systemd-pamredhat-upgrade-systemd-pam-debuginforedhat-upgrade-systemd-resolvedredhat-upgrade-systemd-resolved-debuginforedhat-upgrade-systemd-rpm-macrosredhat-upgrade-systemd-standalone-sysusers-debuginforedhat-upgrade-systemd-standalone-tmpfiles-debuginforedhat-upgrade-systemd-udevredhat-upgrade-systemd-udev-debuginfo
References
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