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Gentoo Linux Security Advisory                           GLSA 202010-08
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                                          https://security.gentoo.org/
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Severity: Normal
   Title: Mozilla Firefox, Mozilla Thunderbird: Multiple
          vulnerabilities
    Date: October 28, 2020
    Bugs: #750446
      ID: 202010-08

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Synopsis
========

Multiple vulnerabilities have been found in Mozilla Firefox and Mozilla
Thunderbird, the worst of which could result in the arbitrary execution
of code.

Background
==========

Mozilla Firefox is a popular open-source web browser from the Mozilla
project.

Mozilla Thunderbird is a popular open-source email client from the
Mozilla project.

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

   -------------------------------------------------------------------
    Package              /     Vulnerable     /            Unaffected
   -------------------------------------------------------------------
 1  www-client/firefox            < 82.0           >= 78.4.0:0/esr78
> = 82.0
 2  www-client/firefox-bin        < 82.0           >= 78.4.0:0/esr78
> = 82.0
 3  mail-client/thunderbird      < 78.4.0                  >= 78.4.0
 4  mail-client/thunderbird-bin
                                 < 78.4.0                  >= 78.4.0
   -------------------------------------------------------------------
    4 affected packages

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

Multiple vulnerabilities have been discovered in Mozilla Firefox and
Mozilla Thunderbird. Please review the CVE identifiers referenced below
for details.

Impact
======

Please review the referenced CVE identifiers for details.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Mozilla Firefox users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-client/firefox-82.0"

All Mozilla Firefox (bin) users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-client/firefox-bin-82.0"

All Mozilla Firefox ESR users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot -v ">=www-client/firefox-78.4.0:0/esr78"

All Mozilla Firefox ESR (bin) users should upgrade to the latest
version:

 # emerge --sync
 # emerge --ask --oneshot -v ">=www-client/firefox-bin-78.4.0:0/esr78"

All Mozilla Thunderbird users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=mail-client/thunderbird-.4.0"

All Mozilla Thunderbird (bin) users should upgrade to the latest
version:

 # emerge --sync
 # emerge --ask --oneshot -v ">=mail-client/thunderbird-bin-78.4.0"

References
==========

[ 1 ] CVE-2020-15683
     https://nvd.nist.gov/vuln/detail/CVE-2020-15683
[ 2 ] CVE-2020-15969
     https://nvd.nist.gov/vuln/detail/CVE-2020-15969
[ 3 ] MFSA-2020-45
     https://www.mozilla.org/en-US/security/advisories/mfsa2020-45/
[ 4 ] MFSA-2020-46
     https://www.mozilla.org/en-US/security/advisories/mfsa2020-46/
[ 5 ] MFSA-2020-47
     https://www.mozilla.org/en-US/security/advisories/mfsa2020-47/

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

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

https://security.gentoo.org/glsa/202010-08

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