Multiple stack-based buffer overflows in gwia.exe in GroupWise Internet Agent (GWIA) in Novell GroupWise before 8.02HP allow remote attackers to execute arbitrary code via a Content-Type header containing (1) multiple items separated by ; (semicolon) characters or (2) crafted string data.
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.