IcedTea 1.7.x before 1.7.6, 1.8.x before 1.8.3, and 1.9.x before 1.9.2, as based on OpenJDK 6, declares multiple sensitive variables as public, which allows remote attackers to obtain sensitive information including (1) user.name, (2) user.home, and (3) java.home system properties, and other sensitive information such as installation directories.
https://bugzilla.redhat.com/show_bug.cgi?id=645843
http://www.vupen.com/english/advisories/2011/0215
http://www.vupen.com/english/advisories/2010/3108
http://www.vupen.com/english/advisories/2010/3090
http://www.ubuntu.com/usn/USN-1024-1
http://www.securityfocus.com/bid/45114
http://www.redhat.com/support/errata/RHSA-2011-0176.html
http://security.gentoo.org/glsa/glsa-201406-32.xml
http://secunia.com/advisories/43085
http://secunia.com/advisories/42417
http://secunia.com/advisories/42412
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051711.html
http://icedtea.classpath.org/hg/release/icedtea6-1.9/rev/9aa0018d8c28
http://blog.fuseyism.com/index.php/2010/11/24/icedtea6-176-183-and-192-released/