Buffer overflow in Microsoft Excel 2000 through 2003 allows user-assisted attackers to execute arbitrary code via a .xls file with certain crafted fields in a SELECTION record, which triggers memory corruption, aka "Malformed SELECTION record 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.