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CVE ID: | CVE-2022-45873 |
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. |
Test IDs: | None available |
Cross References: |
Common Vulnerability Exposure (CVE) ID: CVE-2022-45873 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MS5N5SLYAHKENLAJWYBDKU55ICU3SVZF/ https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437 https://github.com/systemd/systemd/pull/24853#issuecomment-1326561497 https://github.com/systemd/systemd/pull/25055#issuecomment-1313733553 |