Security researcher Mariusz Mlynski reported that when a user examines the profiler output on a malicious website containing specially crafted code, it is possible for arbitrary code execution to occur. This occurs because the profiler user interface runs in a special iframe that parses data from the profiler to render the UI, leaving it susceptible to manipulation.


External Reference:

http://www.mozilla.org/security/announce/2013/mfsa2013-52.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Mariusz Mlynski as the original reporter.

Statement:

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5 and 6