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Gentoo Linux Security Advisory                           GLSA 202006-18
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Bubblewrap: Arbitrary code execution
     Date: June 15, 2020
     Bugs: #686114
       ID: 202006-18

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Synopsis
========

Bubblewrap misuses temporary directories allowing local code execution.

Background
==========

Bubblewrap is an unprivileged sandboxing tool namespaces-powered
chroot-like solution.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-apps/bubblewrap          < 0.4.1                    >= 0.4.1 

Description
===========

Bubblewrap misuses temporary directories in /tmp as a mount point.

Impact
======

This flaw may allow possible execution of code or prevention of running
Bubblewrap.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Bubblewrap users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-apps/bubblewrap-0.4.1"

References
==========

[ 1 ] CVE-2019-12439
      https://nvd.nist.gov/vuln/detail/CVE-2019-12439

Availability
============

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

 https://security.gentoo.org/glsa/202006-18

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

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