Pragma Systems TelnetServer 2000 4.0 - Denial of Service via Long Null Character Sequence to Rexec Port
Buffer overflow in Pragma Systems TelnetServer 2000 version 4.0 allows remote attackers to cause a denial of service via a long series of null characters to the rexec port.
POP3 daemon in Stalker CommuniGate Pro 3.3.2 generates different error messages for invalid usernames versus invalid passwords, which allows remote attackers to determine valid email addresses on the server for SPAM attacks.