A WebKitGTK security update has been released for Ubuntu Linux 18.04 LTS, 20.04 LTS, and 20.10.
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Ubuntu Security Notice USN-4894-1
March 29, 2021
webkit2gtk vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10
- Ubuntu 20.04 LTS
- 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 20.10:
libjavascriptcoregtk-4.0-18 2.30.6-0ubuntu0.20.10.1
libwebkit2gtk-4.0-37 2.30.6-0ubuntu0.20.10.1
Ubuntu 20.04 LTS:
libjavascriptcoregtk-4.0-18 2.30.6-0ubuntu0.20.04.1
libwebkit2gtk-4.0-37 2.30.6-0ubuntu0.20.04.1
Ubuntu 18.04 LTS:
libjavascriptcoregtk-4.0-18 2.30.6-0ubuntu0.18.04.1
libwebkit2gtk-4.0-37 2.30.6-0ubuntu0.18.04.1
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://ubuntu.com/security/notices/USN-4894-1
CVE-2020-27918, CVE-2020-29623, CVE-2021-1765, CVE-2021-1789,
CVE-2021-1799, CVE-2021-1801, CVE-2021-1870
Package Information:
https://launchpad.net/ubuntu/+source/webkit2gtk/2.30.6-0ubuntu0.20.10.1
https://launchpad.net/ubuntu/+source/webkit2gtk/2.30.6-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/webkit2gtk/2.30.6-0ubuntu0.18.04.1
