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Gentoo Linux Security Advisory 202101-14

Gentoo Linux Security Advisory 202101-14
Posted Jan 25, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202101-14 - Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. Versions less than 78.6.1 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2020-16044
MD5 | 32029e1ae788429d5cd89c9817b818e9

Gentoo Linux Security Advisory 202101-14

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 202101-14
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https://security.gentoo.org/
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Severity: Normal
Title: Mozilla Thunderbird: Remote code execution
Date: January 22, 2021
Bugs: #765088
ID: 202101-14

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Synopsis
========

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

Background
==========

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

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 mail-client/thunderbird < 78.6.1 >= 78.6.1
2 mail-client/thunderbird-bin
< 78.6.1 >= 78.6.1
-------------------------------------------------------------------
2 affected packages

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

A use-after-free bug was discovered in Mozilla Thunderbird handling of
SCTP.

Impact
======

A remote attacker could possibly execute arbitrary code with the
privileges of the process or cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Mozilla Thunderbird users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/thunderbird-78.6.1"

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

# emerge --sync
# emerge --ask --oneshot -v ">=mail-client/thunderbird-bin-78.6.1"

References
==========

[ 1 ] CVE-2020-16044
https://nvd.nist.gov/vuln/detail/CVE-2020-16044
[ 2 ] MFSA-2021-02
https://www.mozilla.org/en-US/security/advisories/mfsa2021-02/

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

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

https://security.gentoo.org/glsa/202101-14

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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