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USN-3257-1: WebKitGTK+ vulnerabilities

10 April 2017

Several security issues were fixed in WebKitGTK+.



  • webkit2gtk - Web content engine library for GTK+


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.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.10
Ubuntu 16.04

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use WebKitGTK+, such as Epiphany, to make all the necessary changes.

Related notices

  • USN-3200-1: libjavascriptcoregtk-4.0-dev, webkit2gtk, libwebkit2gtk-4.0-37, libjavascriptcoregtk-4.0-bin, gir1.2-javascriptcoregtk-4.0, gir1.2-webkit2-4.0, libwebkit2gtk-4.0-37-gtk2, libwebkit2gtk-4.0-dev, libjavascriptcoregtk-4.0-18, libwebkit2gtk-4.0-doc