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AUSCERT External Security Bulletin Redistribution
ESB-2020.1374
USN-4331-1: WebKitGTK+ vulnerability
21 April 2020
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AusCERT Security Bulletin Summary
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Product: WebKitGTK
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Denial of Service -- Remote with User Interaction
Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-11793
Reference: ESB-2020.1358
Original Bulletin:
https://usn.ubuntu.com/4331-1/
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USN-4331-1: WebKitGTK+ vulnerability
20 April 2020
webkit2gtk vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.10
o Ubuntu 18.04 LTS
Summary
Several security issues were fixed in WebKitGTK+.
Software Description
o 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 19.10
libjavascriptcoregtk-4.0-18 - 2.28.1-0ubuntu0.19.10.1
libwebkit2gtk-4.0-37 - 2.28.1-0ubuntu0.19.10.1
Ubuntu 18.04 LTS
libjavascriptcoregtk-4.0-18 - 2.28.1-0ubuntu0.18.04.1
libwebkit2gtk-4.0-37 - 2.28.1-0ubuntu0.18.04.1
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
o CVE-2020-11793
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