Microsoft Office PowerPoint 2000 SP3 2002 SP3 and 2003 SP3 and PowerPoint in Microsoft Office 2004 for Mac allows remote attackers to execute arbitrary code via a PowerPoint file with an OutlineTextRefAtom containing an an invalid index value that triggers memory corruption as exploited in the wild in April 2009 by Exploit:Win32/Apptom.gen aka \Memory Corruption Vulnerability.\