NVD - CVE-2016-9382

CVE-2016-9382 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Current Description

Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in VM86 mode.

Source: MITRE
Description Last Modified: 01/23/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.6 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://www.securityfocus.com/bid/94470	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037341	Third Party Advisory VDB Entry
http://xenbits.xen.org/xsa/advisory-192.html	Patch Vendor Advisory
https://security.gentoo.org/glsa/201612-56
https://support.citrix.com/article/CTX218775	Patch Third Party Advisory

Technical Details

Vulnerability Type (View All)

Permissions, Privileges, and Access Control (CWE-264)

Vulnerable software and versions Switch to CPE 2.2

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

4 change records found - show changes

Initial Analysis - 1/25/2017 10:12:21 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR cpe:2.3:a:citrix:xenserver:6.0.2::::::: cpe:2.3:a:citrix:xenserver:6.2.0::::::: cpe:2.3:a:citrix:xenserver:6.5::::::: cpe:2.3:a:citrix:xenserver:7.0:::::::
Added	CPE Configuration		Record truncated, showing 500 of 1720 characters. View Entire Change Record OR cpe:2.3:o:xen:xen:4.0.0::::::: cpe:2.3:o:xen:xen:4.0.1::::::: cpe:2.3:o:xen:xen:4.0.2::::::: cpe:2.3:o:xen:xen:4.0.3::::::: cpe:2.3:o:xen:xen:4.0.4::::::: cpe:2.3:o:xen:xen:4.1.0::::::: cpe:2.3:o:xen:xen:4.1.1::::::: cpe:2.3:o:xen:xen:4.1.2::::::: cpe:2.3:o:xen:xen:4.1.3::::::: cpe:2.3:o:xen:xen:4.1.4::::::: cpe:2.3:o:xen:xen:4.1.5::::::: *cpe:2.3
Added	CVSS V2		(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Added	CVSS V3		AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		CWE-264
Changed	Reference Type	http://www.securitytracker.com/id/1037341 No Types Assigned	http://www.securitytracker.com/id/1037341 Third Party Advisory, VDB Entry
Changed	Reference Type	http://xenbits.xen.org/xsa/advisory-192.html No Types Assigned	http://xenbits.xen.org/xsa/advisory-192.html Vendor Advisory, Patch
Changed	Reference Type	https://support.citrix.com/article/CTX218775 No Types Assigned	https://support.citrix.com/article/CTX218775 Third Party Advisory, Patch

Quick Info

CVE Dictionary Entry:
CVE-2016-9382
NVD Published Date:
01/23/2017
NVD Last Modified:
06/30/2017

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-9382 Detail

Current Description

Analysis Description

Impact

References to Advisories, Solutions, and Tools

Technical Details

Vulnerable software and versions Switch to CPE 2.2

Change History

CVE Modified by MITRE - 6/30/2017 9:30:12 PM

Modified Analysis - 1/26/2017 9:39:23 AM

CVE Modified by MITRE - 1/25/2017 9:59:03 PM

Initial Analysis - 1/25/2017 10:12:21 AM

Quick Info