Unspecified vulnerability in the Sun Java System Communications Express component in Oracle Sun Product Suite 6 2005Q4 (6.2) and and 6.3 allows remote authenticated users to affect confidentiality via unknown vectors related to Address Book.
http://www.us-cert.gov/cas/techalerts/TA10-103B.html
http://www.oracle.com/technetwork/topics/security/cpuapr2010-099504.html
http://sunsolve.sun.com/search/document.do?assetkey=1-77-1022024.1-1