Xen CVE-2017-8903 Arbitrary Code Execution Vulnerability

Bugtraq ID:	98426
Class:	Input Validation Error
CVE:	CVE-2017-8903
Remote:	Yes
Local:	No
Published:	May 11 2017 12:00AM
Updated:	May 26 2017 02:00PM
Credit:	the Xen project
Vulnerable:	Xen Xen 4.8 Xen Xen 4.7 Xen Xen 4.6 Xen Xen 4.5.0 Redhat Enterprise Linux 5 Gentoo Linux
Not Vulnerable:

Xen CVE-2017-8903 Arbitrary Code Execution Vulnerability

Xen is prone to an arbitrary code execution vulnerability.

Successful exploits allow attackers to execute arbitrary code in the context of the host operating system. Failed exploit attempts will result in a denial of service condition.

Xen CVE-2017-8903 Arbitrary Code Execution Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Xen CVE-2017-8903 Arbitrary Code Execution Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Xen CVE-2017-8903 Arbitrary Code Execution Vulnerability

References:

• Updates on XSA-213, XSA-214 and XSA-215 (Xen)
  
• Bug 1443222 - (CVE-2017-8903, xsa213) CVE-2017-8903 xsa213 xen: x86: 64bit PV g (bugzilla)
  
• XSA-213: x86: 64bit PV guest breakout via pagetable use-after-mode-change (Xen)