CVE-2016-9637

Severity CVSS v4.0:

Pending analysis

Type:

CWE-264 Permissions, Privileges, and Access Control

Publication date:

17/02/2017

Last modified:

20/04/2025

Description

The (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access.

Impact

Vector 3.x

CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

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

Base Score 3.x

7.50

Severity 3.x

HIGH

Vector 2.0

AV:L/AC:H/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 3.70 LOW
Vector: AV:L/AC:H/Au:N/C:P/I:P/A:P

Attack Vector (AV): Local
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

3.70

Severity 2.0

LOW

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:citrix:xenserver:6.0.2:::::::*
cpe:2.3:a:citrix:xenserver:6.2.0:sp1::::::
cpe:2.3:a:citrix:xenserver:6.5:sp1::::::
cpe:2.3:a:citrix:xenserver:7.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:citrix:xenserver:6.0.2:::::::*
cpe:2.3:a:citrix:xenserver:6.2.0:sp1::::::
cpe:2.3:a:citrix:xenserver:6.5:sp1::::::
cpe:2.3:a:citrix:xenserver:7.0:::::::*

CVE-2016-9637

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools