[RHSA-2020:4945-01] Important: thunderbird security update

[Security announcements for all Red Hat products and services.]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: thunderbird security update
Advisory ID:       RHSA-2020:4945-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:4945
Issue date:        2020-11-05
CVE Names:         CVE-2020-15683 CVE-2020-15969 
=====================================================================

1. Summary:

An update for thunderbird is now available for Red Hat Enterprise Linux 8.1
Extended Update Support.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream EUS (v. 8.1) - ppc64le, x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 78.4.0.

Security Fix(es):

* Mozilla: Memory safety bugs fixed in Firefox 82 and Firefox ESR 78.4
(CVE-2020-15683)

* chromium-browser: Use after free in WebRTC (CVE-2020-15969)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

All running instances of Thunderbird must be restarted for the update to
take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1885885 - CVE-2020-15969 chromium-browser: Use after free in WebRTC
1889932 - CVE-2020-15683 Mozilla: Memory safety bugs fixed in Firefox 82 and Firefox ESR 78.4

6. Package List:

Red Hat Enterprise Linux AppStream EUS (v. 8.1):

Source:
thunderbird-78.4.0-1.el8_1.src.rpm

ppc64le:
thunderbird-78.4.0-1.el8_1.ppc64le.rpm
thunderbird-debuginfo-78.4.0-1.el8_1.ppc64le.rpm
thunderbird-debugsource-78.4.0-1.el8_1.ppc64le.rpm

x86_64:
thunderbird-78.4.0-1.el8_1.x86_64.rpm
thunderbird-debuginfo-78.4.0-1.el8_1.x86_64.rpm
thunderbird-debugsource-78.4.0-1.el8_1.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2020-15683
https://access.redhat.com/security/cve/CVE-2020-15969
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert at redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2020 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=OXaD
-----END PGP SIGNATURE-----