Xen Page Reference Counting CVE-2013-1432 Denial of Service Vulnerability

Bugtraq ID:	60799
Class:	Design Error
CVE:	CVE-2013-1432
Remote:	No
Local:	Yes
Published:	Jun 26 2013 12:00AM
Updated:	Apr 13 2015 09:48PM
Credit:	Andrew Cooper and the Citrix XenServer team
Vulnerable:	XenSource Xen 4.2.1 XenSource Xen 4.1.2 XenSource Xen 4.1.1 XenSource Xen 4.2 RC XenSource Xen 4.2 XenSource Xen 4.1 XenSource Xen 4.0 SuSE SUSE Linux Enterprise Software Development Kit 11 SP3 + Linux kernel 2.6.5 SuSE SUSE Linux Enterprise Server 11 SP3 + Linux kernel 2.6.5 SuSE SUSE Linux Enterprise Server 11 SP1 LTSS + Linux kernel 2.6.5 + Linux kernel 2.6.5 SuSE Suse Linux Enterprise Desktop 11 SP3 + Linux kernel 2.6.5 S.u.S.E. openSUSE 12.3 S.u.S.E. openSUSE 12.2 Gentoo Linux Debian Linux 6.0 sparc Debian Linux 6.0 s/390 Debian Linux 6.0 powerpc Debian Linux 6.0 mips Debian Linux 6.0 ia-64 Debian Linux 6.0 ia-32 Debian Linux 6.0 arm Debian Linux 6.0 amd64 Citrix XenServer 6.0.2 Citrix XenServer 6.2 Citrix XenServer 6.1 Citrix XenServer 6.0 Citrix XenServer 5.6 Citrix XenServer 5.5 Citrix XenServer 5.0 Citrix XenClient XT 3.1.3 Citrix XenClient XT 2.1.2
Not Vulnerable:	Citrix XenClient XT 3.1.4 Citrix XenClient XT 2.1.3

Xen Page Reference Counting CVE-2013-1432 Denial of Service Vulnerability

Xen is prone to a denial-of-service vulnerability.

Note: This issue affects all Xen versions with 'XSA-45/CVE-2013-1918' fixes.

Local attackers with access to a guest operating system can exploit this issue to crash the host operating system, effectively denying service to legitimate users.

Xen Page Reference Counting CVE-2013-1432 Denial of Service 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 Page Reference Counting CVE-2013-1432 Denial of Service Vulnerability

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

Xen Page Reference Counting CVE-2013-1432 Denial of Service Vulnerability

References:

• Memory Management Vulnerability in Citrix XenServer Could Result in Host Compro (Citrix)
  
• Xen Homepage (XenSource )
  
• Xen Security Advisory 58 (CVE-2013-1432) - Page reference counting error due to (SecLists.Org)
  
• Citrix XenClient XT Multiple Security Updates (Citrix)