The Java Management Extensions (JMX) implementation in Sun Java SE 6 before Update 15, and OpenJDK, does not properly enforce OpenType checks, which allows context-dependent attackers to bypass intended access restrictions by leveraging finalizer resurrection to obtain a reference to a privileged object.

References

• https://nvd.nist.gov/vuln/detail/CVE-2009-2476
• https://bugzilla.redhat.com/show_bug.cgi?id=513220
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10381
• https://rhn.redhat.com/errata/RHSA-2009-1200.html
• https://rhn.redhat.com/errata/RHSA-2009-1201.html
• https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00310.html
• https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00325.html
• http://java.sun.com/javase/6/webnotes/6u15.html
• http://lists.apple.com/archives/security-announce/2009/Sep/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
• http://secunia.com/advisories/36162
• http://secunia.com/advisories/36176
• http://secunia.com/advisories/36180
• http://secunia.com/advisories/37386
• http://security.gentoo.org/glsa/glsa-200911-02.xml
• http://sunsolve.sun.com/search/document.do?assetkey=1-21-125139-16-1
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:209
• http://www.vupen.com/english/advisories/2009/2543