The Google V8 engine, as used in Google Chrome before 44.0.2403.89 and QtWebEngineCore in Qt before 5.5.1, allows remote attackers to cause a denial of service (memory corruption) or execute arbitrary code via a crafted web site.
http://googlechromereleases.blogspot.com/2015/07/stable-channel-update_21.html
http://lists.opensuse.org/opensuse-updates/2015-12/msg00116.html
https://bugs.chromium.org/p/chromium/issues/detail?id=505374