The DNS proxy (DNSd) for multiple Symantec Gateway Security products allows remote attackers to poison the DNS cache via a malicious DNS server query response that contains authoritative or additional records.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2004-1748
http://www.securityfocus.com/bid/10557
http://securityresponse.symantec.com/avcenter/security/Content/2004.06.21.html