Severity: : High
  CVE Kennungen: : CVE-2010-3960
  Advisory Date: 10 de февраля de 2011

  DESCRIPTION

This update resolves a vulnerability in Windows Server 2008 Hyper-V and Windows Server 2008 R2 Hyper-V. An attacker with valid logon credentials could exploit the vulnerability and allow denial of service. The exploit occurs when an attacker sends a specially crafted packet to the VMBus in one of the guest virtual machines hosted by the Hyper-V server. More specifically, the security update addresses the vulnerability by correcting the way by which the Hyper-V server validates malformed packets sent to the VMBus inside its guest virtual machines.

  INFORMATION EXPOSURE

For more information about this vulnerability, please refer to this Microsoft Web page.

Note for affected software:

* Server Core installation affected. This update applies, with the same severity rating, to supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, whether or not installed using the Server Core installation option. For more information on this installation option.

  SOLUTION

  AFFECTED SOFTWARE AND VERSION:

  • Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2*
  • Windows Server 2008 R2 for x64-based Systems*