CVE-2016-3159
N/A
Published: April 13, 2016 at 04:00 PM UTC
Updated: June 17, 2026 at 12:45 AM UTC
4 products affected across 4 vendorsDebian LinuxFedoraXen
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Severity
N/A
Exploit prediction
EPSS 0.4%
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (9)
Vendor Advisoryx_refsource_FEDORAMailing ListThird Party Advisory
Source: [email protected]
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.htmlVendor Advisoryx_refsource_FEDORAMailing ListThird Party Advisory
Source: [email protected]
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.htmlx_refsource_CONFIRMThird Party Advisory
Source: [email protected]
http://support.citrix.com/article/CTX209443Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
http://www.debian.org/security/2016/dsa-3554x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlVDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/85716VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1035435x_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
http://xenbits.xen.org/xsa/advisory-172.htmlQuick Info
StatusMODIFIED
CWE
CWE-200CWE-284
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