The JNLPClassLoader class in IcedTea-Web before 1.0.1, as used in OpenJDK Runtime Environment 1.6.0, allows remote attackers to gain privileges via unknown vectors related to multiple signers and the assignment of "an inappropriate security descriptor."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14117
https://exchange.xforce.ibmcloud.com/vulnerabilities/65534
https://bugzilla.redhat.com/show_bug.cgi?id=677332
http://www.securityfocus.com/bid/46439
http://www.mandriva.com/security/advisories?name=MDVSA-2011:054
http://www.debian.org/security/2011/dsa-2224
http://security.gentoo.org/glsa/glsa-201406-32.xml
http://secunia.com/advisories/43350
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/054134.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/054115.html
http://dbhole.wordpress.com/2011/02/15/icedtea-web-1-0-1-released/