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Ubuntu Security Notice USN-3640-1

Ubuntu Security Notice USN-3640-1
Posted May 8, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3640-1 - Ivan Fratric discovered that WebKitGTK+ incorrectly handled certain web content. If a user were tricked into viewing a malicious website, a remote attacker could possibly exploit this to execute arbitrary code.

tags | advisory, remote, web, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-4200
SHA-256 | e384ea1bf17c9c323fe2e74280f941572e942bef9fb8f0557a8b495215202560

Ubuntu Security Notice USN-3640-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3640-1
May 08, 2018

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

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

- Ubuntu 18.04 LTS
- Ubuntu 17.10
- Ubuntu 16.04 LTS

Summary:

A security issue was fixed in WebKitGTK+.

Software Description:
- webkit2gtk: Web content engine library for GTK+

Details:

Ivan Fratric discovered that WebKitGTK+ incorrectly handled certain web
content. If a user were tricked into viewing a malicious website, a remote
attacker could possibly exploit this to execute arbitrary code.

Update instructions:

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

Ubuntu 18.04 LTS:
libjavascriptcoregtk-4.0-18 2.20.2-0ubuntu0.18.04.1
libwebkit2gtk-4.0-37 2.20.2-0ubuntu0.18.04.1

Ubuntu 17.10:
libjavascriptcoregtk-4.0-18 2.20.2-0ubuntu0.17.10.1
libwebkit2gtk-4.0-37 2.20.2-0ubuntu0.17.10.1

Ubuntu 16.04 LTS:
libjavascriptcoregtk-4.0-18 2.20.2-0ubuntu0.16.04.1
libwebkit2gtk-4.0-37 2.20.2-0ubuntu0.16.04.1

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

References:
https://usn.ubuntu.com/usn/usn-3640-1
CVE-2018-4200

Package Information:
https://launchpad.net/ubuntu/+source/webkit2gtk/2.20.2-0ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/webkit2gtk/2.20.2-0ubuntu0.17.10.1
https://launchpad.net/ubuntu/+source/webkit2gtk/2.20.2-0ubuntu0.16.04.1

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