CVE ID:	CVE-2016-3158
Description:	The xrstor function in arch/x86/xstate.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
Test IDs:	1.3.6.1.4.1.25623.1.1.1.2.2016.571
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2016-3158 BugTraq ID: 85714 http://www.securityfocus.com/bid/85714 Debian Security Information: DSA-3554 (Google Search) http://www.debian.org/security/2016/dsa-3554 http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html http://www.securitytracker.com/id/1035435