ipnat in IP Filter in Sun Solaris 10 and OpenSolaris before snv_96, when running on a DNS server with Network Address Translation (NAT) configured, improperly changes the source port of a packet when the destination port is the DNS port, which allows remote attackers to bypass an intended CVE-2008-1447 protection mechanism and spoof the responses to DNS queries sent by named.
https://exchange.xforce.ibmcloud.com/vulnerabilities/46721
http://www.vupen.com/english/advisories/2008/3129
http://sunsolve.sun.com/search/document.do?assetkey=1-26-245206-1