{"id":"CVE-2021-4147","details":"A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition.","modified":"2026-03-14T11:14:35.591015Z","published":"2022-03-25T19:15:09.643Z","related":["SUSE-SU-2022:0021-1","SUSE-SU-2022:0031-1","SUSE-SU-2022:0032-1","SUSE-SU-2022:0041-1","SUSE-SU-2022:0042-1","SUSE-SU-2022:0045-1","SUSE-SU-2022:0045-2","SUSE-SU-2022:0128-1","openSUSE-SU-2022:0021-1","openSUSE-SU-2024:11758-1"],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20220513-0004/"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2034195"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"2.33.0"}]},{"events":[{"introduced":"0"},{"last_affected":"35"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-4147.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"}]}