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Gentoo Linux Security Advisory 202102-01

Gentoo Linux Security Advisory 202102-01
Posted Feb 1, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202102-1 - Multiple vulnerabilities have been found in Mozilla Firefox, the worst of which could result in the arbitrary execution of code. Versions less than 85.0 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2021-23953, CVE-2021-23954, CVE-2021-23955, CVE-2021-23956, CVE-2021-23958, CVE-2021-23960, CVE-2021-23961, CVE-2021-23962, CVE-2021-23963, CVE-2021-23964, CVE-2021-23965, CVE-2021-26976
MD5 | 517955742b3ce4ae0d2c862d8d2b85b0

Gentoo Linux Security Advisory 202102-01

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Gentoo Linux Security Advisory GLSA 202102-01
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https://security.gentoo.org/
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Severity: Normal
Title: Mozilla Firefox: Multiple vulnerabilities
Date: February 01, 2021
Bugs: #767334
ID: 202102-01

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Synopsis
========

Multiple vulnerabilities have been found in Mozilla Firefox, 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.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-client/firefox < 85.0 >= 78.7.0:0/esr78
>= 85.0
2 www-client/firefox-bin < 85.0 >= 78.7.0:0/esr78
>= 85.0
-------------------------------------------------------------------
2 affected packages

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

Multiple vulnerabilities have been discovered in Mozilla Firefox.
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 ESR users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/firefox-78.7.0"

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/firefox-bin-78.7.0"

All Mozilla Firefox users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/firefox-85.0"

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/firefox-bin-85.0"

References
==========

[ 1 ] CVE-2021-23953
https://nvd.nist.gov/vuln/detail/CVE-2021-23953
[ 2 ] CVE-2021-23954
https://nvd.nist.gov/vuln/detail/CVE-2021-23954
[ 3 ] CVE-2021-23955
https://nvd.nist.gov/vuln/detail/CVE-2021-23955
[ 4 ] CVE-2021-23956
https://nvd.nist.gov/vuln/detail/CVE-2021-23956
[ 5 ] CVE-2021-23958
https://nvd.nist.gov/vuln/detail/CVE-2021-23958
[ 6 ] CVE-2021-23960
https://nvd.nist.gov/vuln/detail/CVE-2021-23960
[ 7 ] CVE-2021-23961
https://nvd.nist.gov/vuln/detail/CVE-2021-23961
[ 8 ] CVE-2021-23962
https://nvd.nist.gov/vuln/detail/CVE-2021-23962
[ 9 ] CVE-2021-23963
https://nvd.nist.gov/vuln/detail/CVE-2021-23963
[ 10 ] CVE-2021-23964
https://nvd.nist.gov/vuln/detail/CVE-2021-23964
[ 11 ] CVE-2021-23965
https://nvd.nist.gov/vuln/detail/CVE-2021-23965
[ 12 ] CVE-2021-26976
https://nvd.nist.gov/vuln/detail/CVE-2021-26976
[ 13 ] Upstream advisory (MFSA-2021-03)
https://www.mozilla.org/en-US/security/advisories/mfsa2021-03/
[ 14 ] Upstream advisory (MFSA-2021-04)
https://www.mozilla.org/en-US/security/advisories/mfsa2021-04/

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

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

https://security.gentoo.org/glsa/202102-01

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 2021 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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