webkit2gtk vulnerability

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 - 2.28.0-0ubuntu0.19.10.2
libwebkit2gtk-4.0-37 - 2.28.0-0ubuntu0.19.10.2

Ubuntu 18.04 LTS
libjavascriptcoregtk-4.0-18 - 2.28.0-0ubuntu0.18.04.3
libwebkit2gtk-4.0-37 - 2.28.0-0ubuntu0.18.04.3

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-2020-10018

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