Zebra and Quagga Remote DoS

Summary
A remote DoS exists in Zebra and/or Quagga when sending a telnet option delimiter with no actual option data. An attacker may exploit this flaw to prevent this host from doing proper routing. This affects all versions from 0.90a to 0.93b.
Solution
Quagga Version 0.96.4. Also see: http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=107140