Ubuntu Security Notice 3257-1 - A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.
cf093dbe9d28c2da54857b225f129940736f62bb4316b79000fc51f6f1eef93f
WebKit suffers from a negative-size memmove in HTMLFormElement.
2ba8dbddde7bedc8e91c573e2570d0bc5f48f080c2fbfa313694d30245d3d20b
Apple Security Advisory 2017-03-27-2 - Safari 10.1 is now available and addresses multiple vulnerabilities.
d26e9aff6bf7e7434e91a8b6c96617fdf3c0d54254c77601ccf9e657673e1334