USN-3781-2: WebKitGTK+ regression

  • USN-3781-2: WebKitGTK+ regression

    Ubuntu Security Notices wrote:

    webkit2gtk regression

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

    • Ubuntu 18.04 LTS


    USN-3781-1 introduced a regression in WebKitGTK+.

    Software Description

    • webkit2gtk - Web content engine library for GTK+


    USN-3781-1 fixed vulnerabilities in WebKitGTK+. The updated package was missing some header files, preventing certain applications from building. This update fixes the problem.

    We apologize for the inconvenience.

    Original advisory 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 18.04 LTS
    libjavascriptcoregtk-4.0-18 - 2.22.2-0ubuntu0.18.04.2
    libwebkit2gtk-4.0-37 - 2.22.2-0ubuntu0.18.04.2

    To update your system, please follow these instructions:

    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.