{"id":"CVE-2014-7155","details":"The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.","modified":"2026-01-27T04:13:19.660528Z","published":"2014-10-02T14:55:05Z","withdrawn":"2026-01-27T04:13:19.660528Z","related":["SUSE-SU-2015:0940-1","openSUSE-SU-2024:10196-1"],"references":[{"type":"ADVISORY","url":"http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html"},{"type":"ADVISORY","url":"http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html"},{"type":"ADVISORY","url":"http://secunia.com/advisories/61858"},{"type":"ADVISORY","url":"http://secunia.com/advisories/61890"},{"type":"ADVISORY","url":"http://security.gentoo.org/glsa/glsa-201412-42.xml"},{"type":"ADVISORY","url":"http://support.citrix.com/article/CTX200218"},{"type":"ADVISORY","url":"http://www.debian.org/security/2014/dsa-3041"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/70057"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1030888"},{"type":"FIX","url":"http://xenbits.xen.org/xsa/advisory-105.html"}],"schema_version":"1.7.3"}