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AUSCERT External Security Bulletin Redistribution
ESB-2018.3684
WebKitGTK+ vulnerabilities
28 November 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: webkit2gtk
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Cross-site Scripting -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-4386 CVE-2018-4372 CVE-2018-4345
Reference: ESB-2018.3636
ESB-2018.3353.2
ESB-2018.3048
ESB-2018.2859
Original Bulletin:
http://www.ubuntu.com/usn/usn-3828-1
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Ubuntu Security Notice USN-3828-1
November 27, 2018
webkit2gtk vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 18.10
- - 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 18.10:
libjavascriptcoregtk-4.0-18 2.22.4-0ubuntu0.18.10.1
libwebkit2gtk-4.0-37 2.22.4-0ubuntu0.18.10.1
Ubuntu 18.04 LTS:
libjavascriptcoregtk-4.0-18 2.22.4-0ubuntu0.18.04.1
libwebkit2gtk-4.0-37 2.22.4-0ubuntu0.18.04.1
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/usn/usn-3828-1
CVE-2018-4345, CVE-2018-4372, CVE-2018-4386
Package Information:
https://launchpad.net/ubuntu/+source/webkit2gtk/2.22.4-0ubuntu0.18.10.1
https://launchpad.net/ubuntu/+source/webkit2gtk/2.22.4-0ubuntu0.18.04.1
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