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AUSCERT External Security Bulletin Redistribution
ESB-2020.0567
USN-4281-1: WebKitGTK+ vulnerabilities
19 February 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: WebKitGTK+
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
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3868 CVE-2020-3867 CVE-2020-3865
CVE-2020-3864 CVE-2020-3862
Reference: ESB-2020.0555
ESB-2020.0538
ESB-2020.0355
ESB-2020.0346
Original Bulletin:
https://usn.ubuntu.com/4281-1/
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USN-4281-1: WebKitGTK+ vulnerabilities
18 February 2020
webkit2gtk vulnerabilities
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 - 2.26.4-0ubuntu0.19.10.1
libwebkit2gtk-4.0-37 - 2.26.4-0ubuntu0.19.10.1
Ubuntu 18.04 LTS
libjavascriptcoregtk-4.0-18 - 2.26.4-0ubuntu0.18.04.1
libwebkit2gtk-4.0-37 - 2.26.4-0ubuntu0.18.04.1
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-2020-3862
o CVE-2020-3864
o CVE-2020-3865
o CVE-2020-3867
o CVE-2020-3868
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