CVE-2016-6258

Debian Security Advisory 3633-1

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.

El código de tabla de página PV en arch/x86/mm.c en Xen 4.7.x y versiones anteriores permite a administradores 32-bit PV locales del SO invitado obtener privilegios de administrador del SO mediante el aprovechamiento de fast_paths para la actualización de las entradas de la tabla de página.

Multiple vulnerabilities have been found in Xen, the worst of which allows gaining of privileges on the host system. Versions less than 4.6.3-r3 are affected.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-07-20 CVE Reserved
2016-07-28 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (10)

URL	Tag	Source
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html	Release Notes
http://www.securityfocus.com/bid/92131	Third Party Advisory
http://www.securitytracker.com/id/1036446	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://xenbits.xen.org/xsa/advisory-182.html	2017-07-01
http://xenbits.xen.org/xsa/xsa182-4.5.patch	2017-07-01
http://xenbits.xen.org/xsa/xsa182-4.6.patch	2017-07-01
http://xenbits.xen.org/xsa/xsa182-unstable.patch	2017-07-01

URL	Date	SRC
http://support.citrix.com/article/CTX214954	2017-07-01
http://www.debian.org/security/2016/dsa-3633	2017-07-01
https://security.gentoo.org/glsa/201611-09	2017-07-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.4.0 Search vendor "Xen" for product "Xen" and version "3.4.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.4.2 Search vendor "Xen" for product "Xen" and version "3.4.2"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.4.3 Search vendor "Xen" for product "Xen" and version "3.4.3"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				3.4.4 Search vendor "Xen" for product "Xen" and version "3.4.4"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.0.0 Search vendor "Xen" for product "Xen" and version "4.0.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.0.1 Search vendor "Xen" for product "Xen" and version "4.0.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.0.3 Search vendor "Xen" for product "Xen" and version "4.0.3"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.0.4 Search vendor "Xen" for product "Xen" and version "4.0.4"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.0 Search vendor "Xen" for product "Xen" and version "4.1.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.1 Search vendor "Xen" for product "Xen" and version "4.1.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.2 Search vendor "Xen" for product "Xen" and version "4.1.2"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.3 Search vendor "Xen" for product "Xen" and version "4.1.3"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.4 Search vendor "Xen" for product "Xen" and version "4.1.4"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.1.5 Search vendor "Xen" for product "Xen" and version "4.1.5"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.2.0 Search vendor "Xen" for product "Xen" and version "4.2.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.2.1 Search vendor "Xen" for product "Xen" and version "4.2.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.2.2 Search vendor "Xen" for product "Xen" and version "4.2.2"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.2.3 Search vendor "Xen" for product "Xen" and version "4.2.3"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.3.0 Search vendor "Xen" for product "Xen" and version "4.3.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.3.1 Search vendor "Xen" for product "Xen" and version "4.3.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.4.0 Search vendor "Xen" for product "Xen" and version "4.4.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.4.1 Search vendor "Xen" for product "Xen" and version "4.4.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.5.0 Search vendor "Xen" for product "Xen" and version "4.5.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.6.0 Search vendor "Xen" for product "Xen" and version "4.6.0"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.6.1 Search vendor "Xen" for product "Xen" and version "4.6.1"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.6.3 Search vendor "Xen" for product "Xen" and version "4.6.3"		-		Affected
Xen Search vendor "Xen"		Xen Search vendor "Xen" for product "Xen"				4.7.0 Search vendor "Xen" for product "Xen" and version "4.7.0"		-		Affected
Citrix Search vendor "Citrix"		Xenserver Search vendor "Citrix" for product "Xenserver"				6.0 Search vendor "Citrix" for product "Xenserver" and version "6.0"		-		Affected
Citrix Search vendor "Citrix"		Xenserver Search vendor "Citrix" for product "Xenserver"				6.0.2 Search vendor "Citrix" for product "Xenserver" and version "6.0.2"		-		Affected
Citrix Search vendor "Citrix"		Xenserver Search vendor "Citrix" for product "Xenserver"				6.1 Search vendor "Citrix" for product "Xenserver" and version "6.1"		-		Affected
Citrix Search vendor "Citrix"		Xenserver Search vendor "Citrix" for product "Xenserver"				6.2.0 Search vendor "Citrix" for product "Xenserver" and version "6.2.0"		sp1		Affected
Citrix Search vendor "Citrix"		Xenserver Search vendor "Citrix" for product "Xenserver"				6.5.0 Search vendor "Citrix" for product "Xenserver" and version "6.5.0"		sp1		Affected
Citrix Search vendor "Citrix"		Xenserver Search vendor "Citrix" for product "Xenserver"				7.0 Search vendor "Citrix" for product "Xenserver" and version "7.0"		-		Affected