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Vulnerability Change Records for CVE-2022-45873

Change History

CVE Modified by MITRE 11/25/2022 1:15:10 AM

Action Type Old Value New Value
Changed 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.
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. NOTE: there is some debate about the security relevance of this report because there are zero subscribers by default.
Added Reference

								
							
							
						
https://github.com/systemd/systemd/pull/24853#issuecomment-1326561497 [No Types Assigned]