{"id":"CVE-2016-6259","details":"Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check.","modified":"2026-04-16T06:18:06.728160646Z","published":"2016-08-02T16:59:09.133Z","related":["SUSE-SU-2016:2093-1","SUSE-SU-2016:2473-1","openSUSE-SU-2024:10196-1"],"references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/92130"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1036447"},{"type":"ADVISORY","url":"http://support.citrix.com/article/CTX214954"},{"type":"FIX","url":"http://xenbits.xen.org/xsa/advisory-183.html"},{"type":"FIX","url":"http://xenbits.xen.org/xsa/xsa183-4.6.patch"},{"type":"FIX","url":"http://xenbits.xen.org/xsa/xsa183-unstable.patch"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.5.0"}]},{"events":[{"introduced":"0"},{"last_affected":"4.5.1"}]},{"events":[{"introduced":"0"},{"last_affected":"4.5.2"}]},{"events":[{"introduced":"0"},{"last_affected":"4.5.3"}]},{"events":[{"introduced":"0"},{"last_affected":"4.6.0"}]},{"events":[{"introduced":"0"},{"last_affected":"4.6.1"}]},{"events":[{"introduced":"0"},{"last_affected":"4.6.3"}]},{"events":[{"introduced":"0"},{"last_affected":"4.7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"6.0"}]},{"events":[{"introduced":"0"},{"last_affected":"6.0.2"}]},{"events":[{"introduced":"0"},{"last_affected":"6.1"}]},{"events":[{"introduced":"0"},{"last_affected":"6.2.0-sp1"}]},{"events":[{"introduced":"0"},{"last_affected":"6.5.0-sp1"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6259.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}