Array index vulnerability in Microsoft Office Excel 2000 SP3 2002 SP3 and 2003 SP3; Excel Viewer 2003 Gold and SP3; Office 2004 and 2008 for Mac; and Open XML File Format Converter for Mac allow remote attackers to execute arbitrary code via an Excel spreadsheet with a NAME record that contains an invalid index value which triggers stack corruption aka \Excel Global Array Memory Corruption Vulnerability.\