CVE - CVE-2016-3159

CVE-ID
CVE-2016-3159	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
The fpu_fxrstor function in arch/x86/i387.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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:http://xenbits.xen.org/xsa/advisory-172.html CONFIRM:http://xenbits.xen.org/xsa/xsa172.patch CONFIRM:http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html CONFIRM:http://support.citrix.com/article/CTX209443 DEBIAN:DSA-3554 URL:http://www.debian.org/security/2016/dsa-3554 FEDORA:FEDORA-2016-5f196e4e4a URL:http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html FEDORA:FEDORA-2016-e5432ca977 URL:http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html BID:85716 URL:http://www.securityfocus.com/bid/85716 SECTRACK:1035435 URL:http://www.securitytracker.com/id/1035435
Assigning CNA
N/A
Date Entry Created
20160315	Disclaimer: The entry creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20160315)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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