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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2016-3158 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html CVE, MITRE Third Party Advisory 
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html CVE, MITRE Third Party Advisory 
http://support.citrix.com/article/CTX209443 CVE, MITRE
http://www.debian.org/security/2016/dsa-3554 CVE, MITRE
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html CVE, MITRE Vendor Advisory 
http://www.securityfocus.com/bid/85714 CVE, MITRE Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1035435 CVE, MITRE Third Party Advisory  VDB Entry 
http://xenbits.xen.org/xsa/advisory-172.html CVE, MITRE Vendor Advisory 
http://xenbits.xen.org/xsa/xsa172-4.3.patch CVE, MITRE Patch 
http://xenbits.xen.org/xsa/xsa172.patch CVE, MITRE Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-284 Improper Access Control cwe source acceptance level NIST  
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-3158
NVD Published Date:
04/13/2016
NVD Last Modified:
04/12/2025
Source:
MITRE