Advisory Published

USN-3530-1: WebKitGTK+ vulnerabilities

First published: Thu Jan 11 2018(Updated: )

It was discovered that speculative execution performed by modern CPUs could leak information through a timing side-channel attack, and that this could be exploited in web browser JavaScript engines. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information from other domains, bypassing same-origin restrictions. (CVE-2017-5753, CVE-2017-5715)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/libjavascriptcoregtk-4.0-18<2.18.5-0ubuntu0.17.10.1
2.18.5-0ubuntu0.17.10.1
=17.10
All of
ubuntu/libwebkit2gtk-4.0-37<2.18.5-0ubuntu0.17.10.1
2.18.5-0ubuntu0.17.10.1
=17.10
All of
ubuntu/libjavascriptcoregtk-4.0-18<2.18.5-0ubuntu0.17.04.1
2.18.5-0ubuntu0.17.04.1
=17.04
All of
ubuntu/libwebkit2gtk-4.0-37<2.18.5-0ubuntu0.17.04.1
2.18.5-0ubuntu0.17.04.1
=17.04
All of
ubuntu/libjavascriptcoregtk-4.0-18<2.18.5-0ubuntu0.16.04.1
2.18.5-0ubuntu0.16.04.1
=16.04
All of
ubuntu/libwebkit2gtk-4.0-37<2.18.5-0ubuntu0.16.04.1
2.18.5-0ubuntu0.16.04.1
=16.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for these WebKitGTK+ vulnerabilities?

    The vulnerability ID for these WebKitGTK+ vulnerabilities is USN-3530-1.

  • What is the impact of these vulnerabilities?

    These vulnerabilities could potentially leak information through a timing side-channel attack and be exploited in web browser JavaScript engines.

  • Which software versions are affected by these vulnerabilities?

    The affected software versions include libjavascriptcoregtk-4.0-18 version 2.18.5-0ubuntu0.17.10.1 for Ubuntu 17.10, libwebkit2gtk-4.0-37 version 2.18.5-0ubuntu0.17.10.1 for Ubuntu 17.10, libjavascriptcoregtk-4.0-18 version 2.18.5-0ubuntu0.17.04.1 for Ubuntu 17.04, libwebkit2gtk-4.0-37 version 2.18.5-0ubuntu0.17.04.1 for Ubuntu 17.04, libjavascriptcoregtk-4.0-18 version 2.18.5-0ubuntu0.16.04.1 for Ubuntu 16.04, and libwebkit2gtk-4.0-37 version 2.18.5-0ubuntu0.16.04.1 for Ubuntu 16.04.

  • How do I fix these vulnerabilities?

    To fix these vulnerabilities, you should update the affected software packages to libjavascriptcoregtk-4.0-18 version 2.18.5-0ubuntu0.17.10.1 for Ubuntu 17.10, libwebkit2gtk-4.0-37 version 2.18.5-0ubuntu0.17.10.1 for Ubuntu 17.10, libjavascriptcoregtk-4.0-18 version 2.18.5-0ubuntu0.17.04.1 for Ubuntu 17.04, libwebkit2gtk-4.0-37 version 2.18.5-0ubuntu0.17.04.1 for Ubuntu 17.04, libjavascriptcoregtk-4.0-18 version 2.18.5-0ubuntu0.16.04.1 for Ubuntu 16.04, and libwebkit2gtk-4.0-37 version 2.18.5-0ubuntu0.16.04.1 for Ubuntu 16.04.

  • Are there any additional resources for these vulnerabilities?

    Yes, you can find more information about these vulnerabilities at the following references: [1](https://ubuntu.com/security/CVE-2017-5715), [2](https://ubuntu.com/security/CVE-2017-5753), and [3](https://ubuntu.com/security/notices/USN-3594-1).

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