Technical Information

Brief overview of the risk:
An information disclosure vulnerability exists when the Windows kernel-mode driver improperly handles buffer elements under certain conditions, allowing an attacker to request the contents of specific memory addresses. An attacker who successfully exploited this vulnerability could then potentially read data that is not intended to be disclosed. This vulnerability would not allow an attacker to execute code or to elevate their user rights directly.

Detailed Information on the risk:

To exploit this vulnerability an attacker would first have to log on to the system or convince a logged-on user to execute a specially crafted application. Workstations and terminal servers are primarily at risk. The update addresses the vulnerability by changing how certain objects are handled in memory.

Further information on this exploit is available at : MS15-061

Windows Server 2003 Service Pack 2 
Windows Server 2003 x64 Edition Service Pack 2 
Windows Server 2003 with SP2 for Itanium-based Systems 
Windows Server 2003 R2 Service Pack 2 
Windows Server 2003 R2 x64 Edition Service Pack 2 
Windows Vista Service Pack 2 
Windows Vista x64 Edition Service Pack 2 
Windows Server 2008 for 32-bit Systems Service Pack 2 
Windows Server 2008 for x64-based Systems Service Pack 2 
Windows Server 2008 for Itanium-based Systems Service Pack 2 
Windows 7 for 32-bit Systems Service Pack 1 
Windows 7 for x64-based Systems Service Pack 1 
Windows Server 2008 R2 for x64-based Systems Service Pack 1 
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 
Windows 8 for 32-bit Systems 
Windows 8 for x64-based Systems 
Windows 8.1 for 32-bit Systems 
Windows 8.1 for x64-based Systems 
Windows Server 2012 
Windows Server 2012 R2 
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 
Windows Server 2012 (Server Core installation) 
Windows Server 2012 R2 (Server Core installation)