vulnerability
Alma Linux: CVE-2022-45873: Moderate: systemd security update (ALSA-2023-0954)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Nov 23, 2022 | Mar 1, 2023 | Aug 11, 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
Aug 11, 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.
Solutions
alma-upgrade-systemdalma-upgrade-systemd-containeralma-upgrade-systemd-develalma-upgrade-systemd-journal-remotealma-upgrade-systemd-libsalma-upgrade-systemd-oomdalma-upgrade-systemd-pamalma-upgrade-systemd-resolvedalma-upgrade-systemd-rpm-macrosalma-upgrade-systemd-udev
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