Mozilla Firefox, Mozilla Thunderbird security updates has been released for Gentoo Linux.

gentoo-announce: GLSA 202010-02 : Mozilla Firefox, Mozilla Thunderbird: Multiple vulnerabilities

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Gentoo Linux Security Advisory GLSA 202010-02
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  https://security.gentoo.org/
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Severity: Normal
Title: Mozilla Firefox, Mozilla Thunderbird: Multiple
vulnerabilities
Date: October 17, 2020
Bugs: #744208, #745432
ID: 202010-02

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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 < 81.0 >= 78.3.0:0/esr78
>= 81.0
2 www-client/firefox-bin < 81.0 >= 78.3.0:0/esr78
>= 81.0
3 mail-client/thunderbird < 78.3.1 >= 78.3.1
4 mail-client/thunderbird-bin
< 78.3.1 >= 78.3.1
-------------------------------------------------------------------
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-81.0"

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/firefox-bin-81.0"

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/firefox-78.3.0"

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/firefox-bin-78.3.0"

All Mozilla Thunderbird users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/thunderbird-78.3.1"

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

# emerge --sync
# emerge --ask --oneshot -v ">=mail-client/thunderbird-bin-78.3.1"

References
=========
[ 1 ] CVE-2020-15673
  https://nvd.nist.gov/vuln/detail/CVE-2020-15673
[ 2 ] CVE-2020-15676
  https://nvd.nist.gov/vuln/detail/CVE-2020-15676
[ 3 ] CVE-2020-15677
  https://nvd.nist.gov/vuln/detail/CVE-2020-15677
[ 4 ] CVE-2020-15678
  https://nvd.nist.gov/vuln/detail/CVE-2020-15678
[ 5 ] Mozilla Foundation Security Advisory 2020-43
  https://www.mozilla.org/en-US/security/advisories/mfsa2020-43/
[ 6 ] Mozilla Foundation Security Advisory 2020-44
  https://www.mozilla.org/en-US/security/advisories/mfsa2020-44/

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

  https://security.gentoo.org/glsa/202010-02

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