Bugzilla – Bug 1205713
VUL-0: CVE-2022-45873: systemd: systemd-coredump deadlock via crash with a long backtrace
Last modified: 2022-11-28 15:56:50 UTC
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. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-45873 https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437 https://github.com/systemd/systemd/pull/25055#issuecomment-1313733553 https://www.cve.org/CVERecord?id=CVE-2022-45873
This should only affect openSUSE:Factory/systemd
Given the fact that Factory switched to v252 recently, no supported distros should be affected by this, right ?
(In reply to Franck Bui from comment #2) > Given the fact that Factory switched to v252 recently, no supported distros > should be affected by this, right ? Correct. Closing the bug.