National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-7093 Detail

Description

Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation.

Source:  MITRE
Description Last Modified:  09/21/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.2 HIGH
Vector: AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H (V3 legend)
Impact Score: 6.0
Exploitability Score: 1.5

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

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
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://support.citrix.com/article/CTX216071 Third Party Advisory
http://www.securityfocus.com/bid/92865
http://www.securitytracker.com/id/1036752 Third Party Advisory VDB Entry
http://xenbits.xen.org/xsa/advisory-186.html Patch Vendor Advisory
http://xenbits.xen.org/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patch Patch Vendor Advisory
https://security.gentoo.org/glsa/201611-09

Technical Details

Vulnerability Type (View All)

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

Change History

5 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-7093
NVD Published Date:
09/21/2016
NVD Last Modified:
06/30/2017