CVE ID:	CVE-2013-2076
Description:	Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one domain to determine portions of the state of floating point instructions of other domains, which can be leveraged to obtain sensitive information such as cryptographic keys, a similar vulnerability to CVE-2006-1056. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processors in a security-relevant fashion that was not addressed by the kernels.
Test IDs:	1.3.6.1.4.1.25623.1.1.10.2017.0012
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2013-2076 55082 http://secunia.com/advisories/55082 DSA-3006 http://www.debian.org/security/2014/dsa-3006 GLSA-201309-24 http://security.gentoo.org/glsa/glsa-201309-24.xml SUSE-SU-2014:0446 http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html [oss-security] 20130603 Xen Security Advisory 52 (CVE-2013-2076) - Information leak on XSAVE/XRSTOR capable AMD CPUs http://www.openwall.com/lists/oss-security/2013/06/03/1