{"id":"CVE-2018-19966","details":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595.","modified":"2026-03-12T22:48:52.074451Z","published":"2018-12-08T04:29:00.467Z","related":["SUSE-SU-2018:4070-1","SUSE-SU-2018:4300-1","SUSE-SU-2019:0003-1","SUSE-SU-2019:0020-1","SUSE-SU-2019:0825-1","SUSE-SU-2019:0827-1","SUSE-SU-2019:13921-1","SUSE-SU-2019:14011-1","openSUSE-SU-2024:11520-1"],"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/106182"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4369"},{"type":"FIX","url":"https://xenbits.xen.org/xsa/advisory-280.html"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-19966.json","unresolved_ranges":[{"events":[{"introduced":"4.11.0"},{"last_affected":"4.11.1"}]},{"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:H/I:H/A:H"}]}