source: http://www.securityfocus.com/bid/9316/info
  
Jordan Windows Telnet Server has been reported prone to a remote buffer overrun vulnerability. The issue has been reported to present itself when a username of excessive length is supplied to the Telnet server. Due to a lack of bounds checking, when this username is copied into an insufficient reserved buffer in stack-based memory, data that exceeds the size of the buffer will overrun its bounds and corrupt adjacent memory. An attacker may exploit this condition to corrupt a saved instruction pointer for the vulnerable function. 

https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/bin-sploits/23493.zip