WebKitGTK+ is a full-featured port of the WebKit rendering engine.
Multiple vulnerabilities have been discovered in WebkitGTK+. Please review the referenced CVE Identifiers for details.
An attacker, by enticing a user to visit maliciously crafted web content, may be able to execute arbitrary code or cause memory corruption.
There are no known workarounds at this time.
All WebkitGTK+ users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/webkit-gtk-2.18.4:4"