Multiple buffer overflows in the Internet Agent (aka GWIA) component in Novell GroupWise 7.x before 7.03 HP3 and 8.x before 8.0 HP2 allow remote attackers to execute arbitrary code via (1) a crafted e-mail address in an SMTP session or (2) an SMTP command.
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.