Heap-based buffer overflow in QuickTime in Apple Mac OS X before 10.6.3 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted movie file with RLE encoding, which triggers memory corruption when the length of decompressed data exceeds that of the allocated heap chunk.
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.