CVE-2016-10025 : VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualizat

VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.

Published 2017-01-26 15:59:00

Updated 2017-01-27 14:22:49

Source MITRE

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2016-10025

Citrix » Xenserver » Version: 6.2.0
cpe:2.3:a:citrix:xenserver:6.2.0:*:*:*:*:*:*:*
Matching versions
Citrix » Xenserver » Version: 6.0.2
cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*
Matching versions
Citrix » Xenserver » Version: 7.0
cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*
Matching versions
Citrix » Xenserver » Version: 6.5
cpe:2.3:a:citrix:xenserver:6.5:*:*:*:*:*:*:*
Matching versions
XEN » XEN » Version: 4.6.0
cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*
Matching versions
XEN » XEN » Version: 4.6.1
cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:*
Matching versions
XEN » XEN » Version: 4.6.3
cpe:2.3:o:xen:xen:4.6.3:*:*:*:*:*:*:*
Matching versions
XEN » XEN » Version: 4.6.4
cpe:2.3:o:xen:xen:4.6.4:*:*:*:*:*:*:*
Matching versions
XEN » XEN » Version: 4.8.0
cpe:2.3:o:xen:xen:4.8.0:*:*:*:*:*:*:*
Matching versions
XEN » XEN » Version: 4.7.0
cpe:2.3:o:xen:xen:4.7.0:*:*:*:*:*:*:*
Matching versions
XEN » XEN » Version: 4.7.1
cpe:2.3:o:xen:xen:4.7.1:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2016-10025

EPSS FAQ

0.06%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 23 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-10025

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.1	LOW	AV:L/AC:L/Au:N/C:N/I:N/A:P	3.9	2.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
5.5	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2016-10025

CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-10025

http://www.securityfocus.com/bid/95026

Xen CVE-2016-10025 Denial of Service Vulnerability
Third Party Advisory;VDB Entry
https://support.citrix.com/article/CTX219378

Citrix XenServer Multiple Security Updates
Patch;Third Party Advisory

CVEs referencing this url
http://xenbits.xen.org/xsa/advisory-203.html

XSA-203 - Xen Security Advisories
Patch;Vendor Advisory
http://www.securitytracker.com/id/1037518

Xen VMFUNC Emulation Bug Lets Local Users on a Guest System Cause Denial of Service Conditions on the Host System - SecurityTracker
Third Party Advisory;VDB Entry

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Vulnerability Details : CVE-2016-10025

Products affected by CVE-2016-10025

Exploit prediction scoring system (EPSS) score for CVE-2016-10025

CVSS scores for CVE-2016-10025

CWE ids for CVE-2016-10025

References for CVE-2016-10025