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AUSCERT External Security Bulletin Redistribution
ESB-2017.2942
WebKitGTK+ vulnerabilities
17 November 2017
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AusCERT Security Bulletin Summary
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Product: WebKitGTK+
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-2017-13803 CVE-2017-13802 CVE-2017-13798
CVE-2017-13796 CVE-2017-13795 CVE-2017-13794
CVE-2017-13793 CVE-2017-13792 CVE-2017-13791
CVE-2017-13788 CVE-2017-13785 CVE-2017-13784
CVE-2017-13783
Reference: ESB-2017.2941
ESB-2017.2770
ESB-2017.2768
Original Bulletin:
http://www.ubuntu.com/usn/usn-3481-1
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Ubuntu Security Notice USN-3481-1
16th November, 2017
webkit2gtk vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
* Ubuntu 17.10
* Ubuntu 17.04
* Ubuntu 16.04 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
version:
Ubuntu 17.10:
libwebkit2gtk-4.0-37 2.18.3-0ubuntu0.17.10.1
libjavascriptcoregtk-4.0-18 2.18.3-0ubuntu0.17.10.1
Ubuntu 17.04:
libwebkit2gtk-4.0-37 2.18.3-0ubuntu0.17.04.1
libjavascriptcoregtk-4.0-18 2.18.3-0ubuntu0.17.04.1
Ubuntu 16.04 LTS:
libwebkit2gtk-4.0-37 2.18.3-0ubuntu0.16.04.1
libjavascriptcoregtk-4.0-18 2.18.3-0ubuntu0.16.04.1
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-2017-13783, CVE-2017-13784, CVE-2017-13785, CVE-2017-13788, CVE-2017-13791,
CVE-2017-13792, CVE-2017-13793, CVE-2017-13794, CVE-2017-13795, CVE-2017-13796,
CVE-2017-13798, CVE-2017-13802, CVE-2017-13803
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