The Websense V10000 appliance before 1.0.1 allows remote attackers to cause a denial of service (memory consumption and process crash) via a large file that is not properly handled during buffering.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.