The TimeZone.getTimeZone method in Sun Java SE 5.0 before Update 22 and 6 before Update 17, and OpenJDK, allows remote attackers to determine the existence of local files via vectors related to handling of zoneinfo (aka tz) files, aka Bug Id 6824265.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6960
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11686
https://bugzilla.redhat.com/show_bug.cgi?id=530300
http://www.mandriva.com/security/advisories?name=MDVSA-2010:084
http://support.apple.com/kb/HT3970
http://support.apple.com/kb/HT3969
http://security.gentoo.org/glsa/glsa-200911-02.xml
http://secunia.com/advisories/37581
http://secunia.com/advisories/37386
http://lists.apple.com/archives/security-announce/2009/Dec/msg00001.html
http://lists.apple.com/archives/security-announce/2009/Dec/msg00000.html