CVE-2016-6259

NVD - CVE-2016-6259

CVE-2016-6259 Detail

Current Description

Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  6.2 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://support.citrix.com/article/CTX214954 Vendor Advisory 
http://www.securityfocus.com/bid/92130 Third Party Advisory 
http://www.securitytracker.com/id/1036447 Third Party Advisory 
http://xenbits.xen.org/xsa/advisory-183.html Mailing List  Patch 
http://xenbits.xen.org/xsa/xsa183-4.6.patch Mitigation  Patch 
http://xenbits.xen.org/xsa/xsa183-unstable.patch Mitigation  Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-6259
NVD Published Date:
08/02/2016
NVD Last Modified:
08/03/2016
Source:
MITRE