Microsoft Office XP SP3, Office 2004 and 2008 for Mac, Office for Mac 2011, and Open XML File Format Converter for Mac allow remote attackers to execute arbitrary code via a crafted Office document that triggers memory corruption, aka "MSO Large SPID Read AV Vulnerability."
Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.