OleAut32.dll in OLE in Microsoft Windows Server 2003 SP2 Windows Vista SP2 Windows Server 2008 SP2 and R2 SP1 Windows 7 SP1 Windows 8 Windows 8.1 Windows Server 2012 Gold and R2 and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code via a crafted web site as demonstrated by an array-redimensioning attempt that triggers improper handling of a size value in the SafeArrayDimen function aka \Windows OLE Automation Array Remote Code Execution Vulnerability.\