Security researcher Mitchell Harper discovered a read-after-free in WebRTC due to the way tracks are handled. This results in a either a potentially exploitable crash or incorrect WebRTC behavior. External Reference: http://www.mozilla.org/security/announce/2015/mfsa2015-06.html Acknowledgements: Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Mitchell Harper as the original reporter.
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 7 Via RHSA-2015:0046 https://rhn.redhat.com/errata/RHSA-2015-0046.html