National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-7094 Detail

Description

Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update.

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

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.1 MEDIUM
Vector: AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 0.5

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

CVSS v2.0 Severity and Metrics:

Base Score: 1.5 LOW
Vector: (AV:L/AC:M/Au:S/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 2.7

Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): Single
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
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.debian.org/security/2016/dsa-3663
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/92864 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036753 Third Party Advisory VDB Entry
http://xenbits.xen.org/xsa/advisory-187.html Patch Vendor Advisory
http://xenbits.xen.org/xsa/xsa187-0001-x86-shadow-Avoid-overflowing-sh_ctxt-seg_reg.patch Patch Vendor Advisory
https://security.gentoo.org/glsa/201611-09

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*    versions up to (including) 4.7.0

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

Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-7094
NVD Published Date:
09/21/2016
NVD Last Modified:
06/30/2017