[USN-4261-1] WebKitGTK+ vulnerabilities

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-4261-1
January 29, 2020

webkit2gtk vulnerabilities
==========================================================================

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

- Ubuntu 19.10
- Ubuntu 18.04 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 versions:

Ubuntu 19.10:
  libjavascriptcoregtk-4.0-18     2.26.3-0ubuntu0.19.10.1
  libwebkit2gtk-4.0-37            2.26.3-0ubuntu0.19.10.1

Ubuntu 18.04 LTS:
  libjavascriptcoregtk-4.0-18     2.26.3-0ubuntu0.18.04.1
  libwebkit2gtk-4.0-37            2.26.3-0ubuntu0.18.04.1

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:
  https://usn.ubuntu.com/4261-1
  CVE-2019-8835, CVE-2019-8844, CVE-2019-8846

Package Information:
  https://launchpad.net/ubuntu/+source/webkit2gtk/2.26.3-0ubuntu0.19.10.1
  https://launchpad.net/ubuntu/+source/webkit2gtk/2.26.3-0ubuntu0.18.04.1

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20200129/b83d41b9/attachment.sig>