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

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

Synopsis:          Important: thunderbird security update
Advisory ID:       RHSA-2020:5400-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:5400
Issue date:        2020-12-14
CVE Names:         CVE-2020-26970 
=====================================================================

1. Summary:

An update for thunderbird is now available for Red Hat Enterprise Linux 7.

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 Client (v. 7) - x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 78.5.1.

Security Fix(es):

* Mozilla: Stack overflow due to incorrect parsing of SMTP server response
codes (CVE-2020-26970)

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/):

1903443 - CVE-2020-26970 Mozilla: Stack overflow due to incorrect parsing of SMTP server response codes

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
thunderbird-78.5.1-1.el7_9.src.rpm

x86_64:
thunderbird-78.5.1-1.el7_9.x86_64.rpm
thunderbird-debuginfo-78.5.1-1.el7_9.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

Source:
thunderbird-78.5.1-1.el7_9.src.rpm

ppc64le:
thunderbird-78.5.1-1.el7_9.ppc64le.rpm
thunderbird-debuginfo-78.5.1-1.el7_9.ppc64le.rpm

x86_64:
thunderbird-78.5.1-1.el7_9.x86_64.rpm
thunderbird-debuginfo-78.5.1-1.el7_9.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
thunderbird-78.5.1-1.el7_9.src.rpm

x86_64:
thunderbird-78.5.1-1.el7_9.x86_64.rpm
thunderbird-debuginfo-78.5.1-1.el7_9.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-2020-26970
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@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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=74/h
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce