Ubuntu 22.04 LTS USN-6061-1 Critical: WebKitGTK Remote Exploit

ubuntu

May 8, 2023

Several security issues were fixed in WebKitGTK.

Summary

Several security issues were fixed in WebKitGTK.

Software Description:

- webkit2gtk: Web content engine library for GTK+

Details:

Several 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.

Topics Covered

security advisory remote exploit critical web security ubuntu webkitgtk

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.04:
   libjavascriptcoregtk-4.0-18     2.40.1-0ubuntu0.23.04.1
   libjavascriptcoregtk-4.1-0      2.40.1-0ubuntu0.23.04.1
   libjavascriptcoregtk-6.0-1      2.40.1-0ubuntu0.23.04.1
   libwebkit2gtk-4.0-37            2.40.1-0ubuntu0.23.04.1
   libwebkit2gtk-4.1-0             2.40.1-0ubuntu0.23.04.1
   libwebkitgtk-6.0-4              2.40.1-0ubuntu0.23.04.1

Ubuntu 22.10:
   libjavascriptcoregtk-4.0-18     2.38.6-0ubuntu0.22.10.1
   libjavascriptcoregtk-4.1-0      2.38.6-0ubuntu0.22.10.1
   libjavascriptcoregtk-5.0-0      2.38.6-0ubuntu0.22.10.1
   libwebkit2gtk-4.0-37            2.38.6-0ubuntu0.22.10.1
   libwebkit2gtk-4.1-0             2.38.6-0ubuntu0.22.10.1
   libwebkit2gtk-5.0-0             2.38.6-0ubuntu0.22.10.1

Ubuntu 22.04 LTS:
   libjavascriptcoregtk-4.0-18     2.38.6-0ubuntu0.22.04.1
   libjavascriptcoregtk-4.1-0      2.38.6-0ubuntu0.22.04.1
   libwebkit2gtk-4.0-37            2.38.6-0ubuntu0.22.04.1
   libwebkit2gtk-4.1-0             2.38.6-0ubuntu0.22.04.1

Ubuntu 20.04 LTS:
   libjavascriptcoregtk-4.0-18     2.38.6-0ubuntu0.20.04.1
   libwebkit2gtk-4.0-37            2.38.6-0ubuntu0.20.04.1

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.