USN-3166-1: WebKitGTK+ vulnerabilities

Ubuntu Security Notice USN-3166-1

10th January, 2017

webkit2gtk vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 16.04 LTS

Summary

Several security issues were fixed in WebKitGTK+.

Software description

• webkit2gtk - JavaScript engine library from WebKitGTK+ - GObject introspection

Details

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 version:

Ubuntu 16.04 LTS:

libwebkit2gtk-4.0-37 2.14.2-0ubuntu0.16.04.1

libjavascriptcoregtk-4.0-18 2.14.2-0ubuntu0.16.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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.

References

CVE-2016-4613, CVE-2016-4657, CVE-2016-4666, CVE-2016-4707, CVE-2016-4728, CVE-2016-4733, CVE-2016-4734, CVE-2016-4735, CVE-2016-4759, CVE-2016-4760, CVE-2016-4761, CVE-2016-4762, CVE-2016-4764, CVE-2016-4765, CVE-2016-4767, CVE-2016-4768, CVE-2016-4769, CVE-2016-7578