CVE-2022-45873

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.

Score
CVSS 3.1 5.5 Medium
Status
Modified - cve@mitre.org
Published
2022-11-23
Last modified
2026-10-14
Weaknesses
CWE-400

Affected products

References

 
 
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