Xen 'xc_vcpu_setaffinity()' Function Buffer Overflow Vulnerability

Bugtraq ID:	59982
Class:	Boundary Condition Error
CVE:	CVE-2013-2072
Remote:	No
Local:	Yes
Published:	May 17 2013 12:00AM
Updated:	Apr 13 2015 09:54PM
Credit:	Xen
Vulnerable:	Xen Xen 4.2 Xen Xen 4.1 Xen Xen 4.0 SuSE SUSE Linux Enterprise Server for VMware 11 SP2 + Linux kernel 2.6.5 SuSE SUSE Linux Enterprise Server 11 SP2 + 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 SDK 11 SP2 SuSE Suse Linux Enterprise Desktop 11 SP2 + Linux kernel 2.6.5 S.u.S.E. openSUSE 12.3 S.u.S.E. openSUSE 12.2
Not Vulnerable:

Xen 'xc_vcpu_setaffinity()' Function Buffer Overflow Vulnerability

Xen is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary checks on the user-supplied data.

An attacker with access to a guest operating system can exploit this issue to crash the host operating system, effectively denying service to legitimate users. Due to the nature of this issue, arbitrary code-execution with elevated privileges is also possible.

Xen 'xc_vcpu_setaffinity()' Function Buffer Overflow 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 'xc_vcpu_setaffinity()' Function Buffer Overflow Vulnerability

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

Xen 'xc_vcpu_setaffinity()' Function Buffer Overflow Vulnerability

References:

• Xen Homepage (XenSource )
  
• Xen Security Advisory 56 (CVE-2013-2072) - Buffer overflow in xencontrol Python (oss-sec)