CVE 2009-1106
The Java Plug-in in Java SE Development Kit (JDK) and Java Runtime Environment (JRE) 6 Update 12, 11, and 10 does not properly parse crossdomain.xml files, which allows remote attackers to bypass intended access restrictions and connect to arbitrary sites via unknown vectors, aka CR 6798948.
See the 
CVE page on Mitre.org
for more details.
