The regular-expression implementation in Google V8, as used in Google Chrome before 44.0.2403.89, mishandles interrupts, which allows remote attackers to cause a denial of service (application crash) via crafted JavaScript code, as demonstrated by an error in garbage collection during allocation of a stack-overflow exception message.
https://code.google.com/p/chromium/issues/detail?id=512110
https://code.google.com/p/chromium/issues/detail?id=469480
https://chromium.googlesource.com/v8/v8.git/+/c67cb287a901ddf03d4ae4dafcf431d09fd3e22c
http://www.securitytracker.com/id/1033031
http://www.securityfocus.com/bid/76007
http://rhn.redhat.com/errata/RHSA-2015-1499.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00038.html
http://googlechromereleases.blogspot.com/2015/07/stable-channel-update_21.html