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Ubuntu 18.04 LTS & 18.10 USN-3828-1 High: WebKitGTK+ DoS Threats

ubuntu
Calendar Grey November 27, 2018
Dist Ubuntu Esm H88
Several vulnerabilities within WebKitGTK+ necessitate prompt updates to safeguard against potential threats on Ubuntu platforms.
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:

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.

Topics%20covered

Topics Covered

security advisory cross-site scripting DoS Ubuntu high JavaScript WebKitGTK+

Update Instructions

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

Ubuntu 18.10:
  libjavascriptcoregtk-4.0-18     2.22.4-0ubuntu0.18.10.1
  libwebkit2gtk-4.0-37            2.22.4-0ubuntu0.18.10.1

Ubuntu 18.04 LTS:
  libjavascriptcoregtk-4.0-18     2.22.4-0ubuntu0.18.04.1
  libwebkit2gtk-4.0-37            2.22.4-0ubuntu0.18.04.1

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-3828-1

CVE-2018-4345, CVE-2018-4372, CVE-2018-4386

November 27, 2018

Topics%20covered

Topics Covered

security advisory cross-site scripting DoS Ubuntu high JavaScript WebKitGTK+

Package Information

https://launchpad.net/ubuntu/+source/webkit2gtk/2.22.4-0ubuntu0.18.10.1
https://launchpad.net/ubuntu/+source/webkit2gtk/2.22.4-0ubuntu0.18.04.1

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