USN-5306-1: WebKitGTK vulnerabilities
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.
Source: USN-5306-1: WebKitGTK vulnerabilities