Heap-based buffer overflow in Internet Explorer 8 on Microsoft Windows 7 allows remote attackers to discover the base address of a Windows .dll file, and possibly have unspecified other impact, via unknown vectors, as demonstrated by Peter Vreugdenhil during a Pwn2Own competition at CanSecWest 2010.
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.