CVE-2016-9381

Severity CVSS v4.0:

Pending analysis

Type:

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Publication date:

23/01/2017

Last modified:

20/04/2025

Description

Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability.

Impact

Vector 3.x

CVSS:3.1/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:3.1/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:M/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.90 MEDIUM
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

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

Base Score 2.0

6.90

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:qemu:qemu::::::::		2.7.1 (including)
cpe:2.3:a:qemu:qemu:2.8.0:rc0::::::
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:::::::*

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

CPE	From	Up to
cpe:2.3:a:qemu:qemu::::::::		2.7.1 (including)
cpe:2.3:a:qemu:qemu:2.8.0:rc0::::::
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:::::::*

CVE-2016-9381

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools