Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2018.1405
WebKitGTK+ vulnerability
9 May 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: webkit2gtk
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-4200
Reference: ESB-2018.1398
Original Bulletin:
http://www.ubuntu.com/usn/usn-3640-1
- --------------------------BEGIN INCLUDED TEXT--------------------
==========================================================================
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
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=gjaM
-----END PGP SIGNATURE-----