{"id":"CVE-2018-7540","details":"An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.","modified":"2026-03-12T22:55:53.843632Z","published":"2018-02-27T19:29:00.607Z","related":["SUSE-SU-2018:0678-1","SUSE-SU-2018:0909-1","SUSE-SU-2018:1184-1","openSUSE-SU-2024:11520-1"],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html"},{"type":"WEB","url":"https://support.citrix.com/article/CTX232096"},{"type":"WEB","url":"https://support.citrix.com/article/CTX232655"},{"type":"WEB","url":"http://www.securityfocus.com/bid/103174"},{"type":"WEB","url":"http://www.securitytracker.com/id/1040773"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4131"},{"type":"ADVISORY","url":"https://xenbits.xen.org/xsa/advisory-252.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201810-06"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-7540.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]}]}}],"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"}]}