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AUSCERT External Security Bulletin Redistribution
ESB-2020.2652
USN-4444-1: WebKitGTK vulnerabilities
4 August 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: WebKitGTK
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Cross-site Scripting -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-9925 CVE-2020-9915 CVE-2020-9895
CVE-2020-9894 CVE-2020-9893 CVE-2020-9862
Reference: ESB-2020.2434
Original Bulletin:
https://usn.ubuntu.com/4444-1/
https://webkitgtk.org/security/WSA-2020-0007.html
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USN-4444-1: WebKitGTK vulnerabilities
03 August 2020
Several security issues were fixed in WebKitGTK.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
Packages
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 20.04
o libjavascriptcoregtk-4.0-18 - 2.28.4-0ubuntu0.20.04.1
o libwebkit2gtk-4.0-37 - 2.28.4-0ubuntu0.20.04.1
Ubuntu 18.04
o libjavascriptcoregtk-4.0-18 - 2.28.4-0ubuntu0.18.04.1
o libwebkit2gtk-4.0-37 - 2.28.4-0ubuntu0.18.04.1
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
o CVE-2020-9862
o CVE-2020-9893
o CVE-2020-9894
o CVE-2020-9895
o CVE-2020-9915
o CVE-2020-9925
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