USN-3257-1: WebKitGTK+ vulnerabilities

Ubuntu Security Notice USN-3257-1

10th April, 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 2.16.1-0ubuntu0.16.10.1
libjavascriptcoregtk-4.0-18 2.16.1-0ubuntu0.16.10.1
Ubuntu 16.04 LTS:
libwebkit2gtk-4.0-37 2.16.1-0ubuntu0.16.04.1
libjavascriptcoregtk-4.0-18 2.16.1-0ubuntu0.16.04.1

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-2016-9642, CVE-2016-9643, CVE-2017-2364, CVE-2017-2367, CVE-2017-2376, CVE-2017-2377, CVE-2017-2386, CVE-2017-2392, CVE-2017-2394, CVE-2017-2395, CVE-2017-2396, CVE-2017-2405, CVE-2017-2415, CVE-2017-2419, CVE-2017-2433, CVE-2017-2442, CVE-2017-2445, CVE-2017-2446, CVE-2017-2447, CVE-2017-2454, CVE-2017-2455, CVE-2017-2457, CVE-2017-2459, CVE-2017-2460, CVE-2017-2464, CVE-2017-2465, CVE-2017-2466, CVE-2017-2468, CVE-2017-2469, CVE-2017-2470, CVE-2017-2471, CVE-2017-2475, CVE-2017-2476, CVE-2017-2481