USN-3551-1: WebKitGTK+ vulnerabilities

30 January 2018

webkit2gtk vulnerabilities

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

  • Ubuntu 17.10
  • Ubuntu 16.04 LTS

Summary

Several security issues were fixed in WebKitGTK+.

Software Description

  • webkit2gtk - Web content engine library for GTK+

Details

Multiple security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, spoof the user interface, or execute arbitrary code. (CVE-2018-4088, CVE-2018-4096, CVE-2017-7153, CVE-2017-7160, CVE-2017-7161, CVE-2017-7165, CVE-2017-13884, CVE-2017-13885)

Update instructions

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

Ubuntu 17.10
libjavascriptcoregtk-4.0-18 - 2.18.6-0ubuntu0.17.10.1
libwebkit2gtk-4.0-37 - 2.18.6-0ubuntu0.17.10.1
Ubuntu 16.04 LTS
libjavascriptcoregtk-4.0-18 - 2.18.6-0ubuntu0.16.04.1
libwebkit2gtk-4.0-37 - 2.18.6-0ubuntu0.16.04.1

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