A Use-after-free was found in AppCache component of Chromium browser. Upstream bug: https://code.google.com/p/chromium/issues/detail?id=558589 External References: http://googlechromereleases.blogspot.com/2015/12/stable-channel-update.html
This issue has been addressed in the following products: Supplementary for Red Hat Enterprise Linux 6 Via RHSA-2015:2545 https://rhn.redhat.com/errata/RHSA-2015-2545.html