Buffer overflow in BitchX IRC client allows remote attackers to cause a denial of service and possibly execute arbitrary commands via an IP address that resolves to a long DNS hostname or domain name.
https://exchange.xforce.ibmcloud.com/vulnerabilities/5701
http://www.redhat.com/support/errata/RHSA-2000-126.html
http://www.linux-mandrake.com/en/security/2000/MDKSA-2000-079.php3
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000364