{"id":"CVE-2018-5244","details":"In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.","modified":"2026-03-12T22:51:54.279197Z","published":"2018-01-05T18:29:00.247Z","related":["openSUSE-SU-2024:11520-1"],"references":[{"type":"WEB","url":"http://www.securitytracker.com/id/1040774"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/102433"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201810-06"},{"type":"REPORT","url":"https://xenbits.xen.org/xsa/advisory-253.html"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-5244.json","unresolved_ranges":[{"events":[{"introduced":"4.10.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"}]}