Stack-based buffer overflow in the nim: protocol handler in Novell GroupWise Messenger 2.04 and earlier, and Novell Messenger 2.1.x and 2.2.x before 2.2.2, allows remote attackers to execute arbitrary code via an import command containing a long string in the filename parameter.
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.