USN-4261-1: WebKitGTK+ vulnerabilities

USN-4261-1: WebKitGTK+ vulnerabilities

webkit2gtk vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 19.10
• 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 19.10

libjavascriptcoregtk-4.0-18 – 2.26.3-0ubuntu0.19.10.1

libwebkit2gtk-4.0-37 – 2.26.3-0ubuntu0.19.10.1

Ubuntu 18.04 LTS

libjavascriptcoregtk-4.0-18 – 2.26.3-0ubuntu0.18.04.1

libwebkit2gtk-4.0-37 – 2.26.3-0ubuntu0.18.04.1

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

• CVE-2019-8835
• CVE-2019-8844
• CVE-2019-8846

Source: USN-4261-1: WebKitGTK+ vulnerabilities