CVE-2022-45873: Fedoraproject Fedora

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Fedoraproject Fedora: version 36 only
• Systemd Project Systemd: from 250, up to and including 251; version 252 only

Published 2022-11-23. Last modified 2026-06-17.