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Gentoo Linux Security Advisory                           GLSA 202004-04
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Qt WebEngine: Arbitrary code execution
     Date: April 01, 2020
     Bugs: #699328
       ID: 202004-04

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Synopsis
=======
A heap use-after-free flaw in Qt WebEngine at worst might allow an
attacker to execute arbitrary code.

Background
=========
Library for rendering dynamic web content in Qt5 C++ and QML
applications.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-qt/qtwebengine           < 5.14.1                  >= 5.14.1

Description
==========
A use-after-free vulnerability has been found in the audio component of
Qt WebEngine.

Impact
=====
A remote attacker could entice a user to open a specially crafted media
file in an application linked against Qt WebEngine, possibly resulting
in execution of arbitrary code with the privileges of the process or a
Denial of Service condition.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All Qt WebEngine users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-qt/qtwebengine-5.14.1"

References
=========
[ 1 ] CVE-2019-13720
      https://nvd.nist.gov/vuln/detail/CVE-2019-13720

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202004-04

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
======
Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5/