USN-3191-1: WebKitGTK+ vulnerabilities

Ubuntu Security Notice USN-3191-1

6th February, 2017

webkit2gtk vulnerabilities

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

  • Ubuntu 16.10
  • Ubuntu 16.04 LTS

Summary

Several security issues were fixed in WebKitGTK+.

Software description

  • webkit2gtk - Web content engine library for GTK+

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 16.10:
libwebkit2gtk-4.0-37 2.14.3-0ubuntu0.16.10.1
libjavascriptcoregtk-4.0-18 2.14.3-0ubuntu0.16.10.1
Ubuntu 16.04 LTS:
libwebkit2gtk-4.0-37 2.14.3-0ubuntu0.16.04.1
libjavascriptcoregtk-4.0-18 2.14.3-0ubuntu0.16.04.1

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-2016-7586, CVE-2016-7589, CVE-2016-7592, CVE-2016-7599, CVE-2016-7623, CVE-2016-7632, CVE-2016-7635, CVE-2016-7639, CVE-2016-7641, CVE-2016-7645, CVE-2016-7652, CVE-2016-7654, CVE-2016-7656