Mozilla community member Vytautas Staraitis reported an issue with the interaction of Java applets and JavaScript. The Java plugin can deallocate a JavaScript wrapper when it is still in use, which leads to a JavaScript garbage collection crash. This crash is potentially exploitable. This issue only affects systems where Java is installed and enabled as a browser plugin. Other systems are unaffected. External Reference: https://www.mozilla.org/security/announce/2015/mfsa2015-130.html Acknowledgements: Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Vytautas Staraitis as the original reporter.
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 5 Via RHSA-2015:1982 https://rhn.redhat.com/errata/RHSA-2015-1982.html