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

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

Synopsis:          Important: thunderbird security update
Advisory ID:       RHSA-2020:3038-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:3038
Issue date:        2020-07-21
CVE Names:         CVE-2020-12417 CVE-2020-12418 CVE-2020-12419 
                   CVE-2020-12420 CVE-2020-12421 
=====================================================================

1. Summary:

An update for thunderbird is now available for Red Hat Enterprise Linux 8.

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 (v. 8) - aarch64, ppc64le, x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 68.10.0.

Security Fix(es):

* Mozilla: Memory corruption due to missing sign-extension for ValueTags on
ARM64 (CVE-2020-12417)

* Mozilla: Information disclosure due to manipulated URL object
(CVE-2020-12418)

* Mozilla: Use-after-free in nsGlobalWindowInner (CVE-2020-12419)

* Mozilla: Use-After-Free when trying to connect to a STUN server
(CVE-2020-12420)

* Mozilla: Add-On updates did not respect the same certificate trust rules
as software updates (CVE-2020-12421)

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/):

1853014 - CVE-2020-12417 Mozilla: Memory corruption due to missing
 sign-extension for ValueTags on ARM64
1853015 - CVE-2020-12418 Mozilla: Information disclosure due to manipulated URL
 object
1853016 - CVE-2020-12419 Mozilla: Use-after-free in nsGlobalWindowInner
1853017 - CVE-2020-12420 Mozilla: Use-After-Free when trying to connect to a
 STUN server
1853018 - CVE-2020-12421 Mozilla: Add-On updates did not respect the same
 certificate trust rules as software updates

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
thunderbird-68.10.0-1.el8_2.src.rpm

aarch64:
thunderbird-68.10.0-1.el8_2.aarch64.rpm
thunderbird-debuginfo-68.10.0-1.el8_2.aarch64.rpm
thunderbird-debugsource-68.10.0-1.el8_2.aarch64.rpm

ppc64le:
thunderbird-68.10.0-1.el8_2.ppc64le.rpm
thunderbird-debuginfo-68.10.0-1.el8_2.ppc64le.rpm
thunderbird-debugsource-68.10.0-1.el8_2.ppc64le.rpm

x86_64:
thunderbird-68.10.0-1.el8_2.x86_64.rpm
thunderbird-debuginfo-68.10.0-1.el8_2.x86_64.rpm
thunderbird-debugsource-68.10.0-1.el8_2.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-2020-12417
https://access.redhat.com/security/cve/CVE-2020-12418
https://access.redhat.com/security/cve/CVE-2020-12419
https://access.redhat.com/security/cve/CVE-2020-12420
https://access.redhat.com/security/cve/CVE-2020-12421
https://access.redhat.com/security/updates/classification/#important
https://www.mozilla.org/en-US/security/advisories/mfsa2020-26/

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

iQIVAwUBXxcA/9zjgjWX9erEAQiaew//ftNdmsbrsu/2PmGX6ud4mQOO/CEyDzac
hnuUygDG561wLtpV84BWzmsdly0GAfv8GIpVpj7Hm16v40OtPVcLpZcBdlyLiFuE
ean+ui0SIGQ+qz4+EHnEMZwqWRM/GA7KL/5c7OjgQRo6//LmyMl/6Pio+FqkJpx3
r+GzDo/mH1P/P4tHJr5i23q78hbSUNqgp2hwmsDsfsLK0KK/1aHfr+WTvLx3Uen9
myBeNpkp/3KE2tso08qQDZVcgWQMc6x2X90eVdsuUcYntFRtU+RQ6nS8aikzWv4k
+GOuJXYlOFjYlOZqHtLhek6F/LF4BZiFolP03bUrsobyQ8mtVfbWMGKUIqr6csad
pk0jzWrVxvQA0sZ5VQAGIWdL6jOZxi4RivECF/UDtIgZDETHlYdEKDvWrgaTUfM0
JZUiWgJP4l/XN3hA5xPeLCUkDCYFGmZBCTt1iMk/w/o4n+OhXwfxgaJ9s2Zcrhxf
IAa807ItbfHLwiC6DT5qZes7P3beKYYaOy/fsgbPH4EjQkhRT6HTHE4lXZuT4+Nx
JyYRG/9K6XF4LdKYK47K2/e4B8D3l7NSK9zPEiqdsxNLsXHUe0awIYa9EXRrvK/g
4TBnD8abSVJ13dK6Q++MP6ZPpUV5yJ4PZ8Lcdcuc0pobSKe8BaL4drnE9PwASD5f
D9C2ymA49Pk=
=L4J8
-----END PGP SIGNATURE-----

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