{"id":"CVE-2015-8555","details":"Xen 4.6.x, 4.5.x, 4.4.x, 4.3.x, and earlier do not initialize x86 FPU stack and XMM registers when XSAVE/XRSTOR are not used to manage guest extended register state, which allows local guest domains to obtain sensitive information from other domains via unspecified vectors.","modified":"2026-04-10T03:46:32.402920Z","published":"2016-04-13T15:59:08Z","related":["MGASA-2016-0098","SUSE-SU-2016:0873-1","SUSE-SU-2016:0955-1","SUSE-SU-2016:1154-1","SUSE-SU-2016:1318-1","SUSE-SU-2016:1745-1","openSUSE-SU-2024:10196-1"],"references":[{"type":"ADVISORY","url":"http://www.debian.org/security/2016/dsa-3519"},{"type":"ADVISORY","url":"http://xenbits.xen.org/xsa/advisory-165.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201604-03"},{"type":"FIX","url":"http://xenbits.xen.org/xsa/advisory-165.html"},{"type":"WEB","url":"http://support.citrix.com/article/CTX203879"},{"type":"WEB","url":"http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"},{"type":"WEB","url":"http://www.securityfocus.com/bid/79543"},{"type":"WEB","url":"http://www.securitytracker.com/id/1034477"}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"}]}