USN-3460-1: WebKitGTK+ vulnerabilities

Ubuntu Security Notice USN-3460-1

23rd October, 2017

webkit2gtk vulnerabilities

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

  • Ubuntu 17.04
  • 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 17.04:
libwebkit2gtk-4.0-37 2.18.0-0ubuntu0.17.04.2
libjavascriptcoregtk-4.0-18 2.18.0-0ubuntu0.17.04.2
Ubuntu 16.04 LTS:
libwebkit2gtk-4.0-37 2.18.0-0ubuntu0.16.04.2
libjavascriptcoregtk-4.0-18 2.18.0-0ubuntu0.16.04.2

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-2017-7087, CVE-2017-7089, CVE-2017-7090, CVE-2017-7091, CVE-2017-7092, CVE-2017-7093, CVE-2017-7095, CVE-2017-7096, CVE-2017-7098, CVE-2017-7100, CVE-2017-7102, CVE-2017-7104, CVE-2017-7107, CVE-2017-7109, CVE-2017-7111, CVE-2017-7117, CVE-2017-7120