Race condition in the MutationObserver implementation in Blink, as used in Google Chrome before 47.0.2526.80, allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact by leveraging unanticipated object deletion.
googlechromereleases.blogspot.com/2015/12/stable-channel-update_8.html
lists.opensuse.org/opensuse-security-announce/2015-12/msg00016.html
lists.opensuse.org/opensuse-security-announce/2015-12/msg00017.html
rhn.redhat.com/errata/RHSA-2015-2618.html
www.debian.org/security/2015/dsa-3418
www.securityfocus.com/bid/78734
www.ubuntu.com/usn/USN-2860-1
code.google.com/p/chromium/issues/detail?id=557981
codereview.chromium.org/1463433002/
security.gentoo.org/glsa/201603-09