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[USN-3303-1] WebKitGTK+ vulnerabilities

Posted on 30 May 2017
Ubuntu Security

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Ubuntu Security Notice USN-3303-1
May 30, 2017

webkit2gtk vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 17.04
- 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 a=
nd
JavaScript engines. If a user were tricked into viewing a malicious
website, a remote attacker could exploit a variety of issues related to w=
eb
browser security, including cross-site scripting attacks, denial of servi=
ce
attacks, and arbitrary code execution.

Update instructions:

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

Ubuntu 17.04:
libjavascriptcoregtk-4.0-18 2.16.3-0ubuntu0.17.04.1
libwebkit2gtk-4.0-37 2.16.3-0ubuntu0.17.04.1

Ubuntu 16.10:
libjavascriptcoregtk-4.0-18 2.16.3-0ubuntu0.16.10.1
libwebkit2gtk-4.0-37 2.16.3-0ubuntu0.16.10.1

Ubuntu 16.04 LTS:
libjavascriptcoregtk-4.0-18 2.16.3-0ubuntu0.16.04.1
libwebkit2gtk-4.0-37 2.16.3-0ubuntu0.16.04.1

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any application=
s
that use WebKitGTK+, such as Epiphany, to make all the necessary changes.=


References:
https://www.ubuntu.com/usn/usn-3303-1
CVE-2017-2496, CVE-2017-2510, CVE-2017-2539

Package Information:
https://launchpad.net/ubuntu/+source/webkit2gtk/2.16.3-0ubuntu0.17.04.1=

https://launchpad.net/ubuntu/+source/webkit2gtk/2.16.3-0ubuntu0.16.10.1=

https://launchpad.net/ubuntu/+source/webkit2gtk/2.16.3-0ubuntu0.16.04.1=




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