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Ubuntu Security Notice USN-4739-1

Ubuntu Security Notice USN-4739-1
Posted Feb 18, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4739-1 - 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.

tags | advisory, remote, web, denial of service, arbitrary, javascript, code execution, xss
systems | linux, ubuntu
advisories | CVE-2020-13558
MD5 | a5feb8fa066d0c3a1865f6e0f2147384

Ubuntu Security Notice USN-4739-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4739-1
February 18, 2021

webkit2gtk vulnerability
==========================================================================

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

- Ubuntu 20.10
- Ubuntu 20.04 LTS
- 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 20.10:
libjavascriptcoregtk-4.0-18 2.30.5-0ubuntu0.20.10.1
libwebkit2gtk-4.0-37 2.30.5-0ubuntu0.20.10.1

Ubuntu 20.04 LTS:
libjavascriptcoregtk-4.0-18 2.30.5-0ubuntu0.20.04.1
libwebkit2gtk-4.0-37 2.30.5-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
libjavascriptcoregtk-4.0-18 2.30.5-0ubuntu0.18.04.1
libwebkit2gtk-4.0-37 2.30.5-0ubuntu0.18.04.1

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/4739-1
CVE-2020-13558

Package Information:
https://launchpad.net/ubuntu/+source/webkit2gtk/2.30.5-0ubuntu0.20.10.1
https://launchpad.net/ubuntu/+source/webkit2gtk/2.30.5-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/webkit2gtk/2.30.5-0ubuntu0.18.04.1
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