CVE-2022-45873
published 2022-11-23CVE-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…
medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
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
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | systemd | < systemd 252-1 (bookworm) | systemd 252-1 (bookworm) |
| fedoraproject | fedora | — | — |
| msrc | azl3_systemd-bootstrap_250.3-17_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| systemd_project | systemd | — | — |
| systemd_project | systemd | >= 0 < 252-1 | 252-1 |
| systemd_project | systemd | >= 0 < 252-1 | 252-1 |
| systemd_project | systemd | >= 0 < 252-1 | 252-1 |
| systemd_project | systemd | >= 0 < 237-3ubuntu10.57 | 237-3ubuntu10.57 |
| systemd_project | systemd | >= 0 < 245.4-4ubuntu3.20 | 245.4-4ubuntu3.20 |
| systemd_project | systemd | >= 0 < 249.11-0ubuntu3.7 | 249.11-0ubuntu3.7 |
| systemd_project | systemd | >= 0 < 204-5ubuntu20.31+esm2 | 204-5ubuntu20.31+esm2 |
| systemd_project | systemd | >= 0 < 229-4ubuntu21.31+esm3 | 229-4ubuntu21.31+esm3 |
| systemd_project | systemd | 250 – 251 | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM