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Red Hat Security Advisory 2021-2261-01

Red Hat Security Advisory 2021-2261-01
Posted Jun 7, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2261-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.11.0.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-29956, CVE-2021-29957, CVE-2021-29967
MD5 | ab08db1474a4090c066915139ba6b34f

Red Hat Security Advisory 2021-2261-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Important: thunderbird security update
Advisory ID: RHSA-2021:2261-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2261
Issue date: 2021-06-07
CVE Names: CVE-2021-29956 CVE-2021-29957 CVE-2021-29967
=====================================================================

1. Summary:

An update for thunderbird is now available for Red Hat Enterprise Linux 8.2
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. 8.2) - aarch64, ppc64le, x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 78.11.0.

Security Fix(es):

* Mozilla: Memory safety bugs fixed in Firefox 89 and Firefox ESR 78.11
(CVE-2021-29967)

* Mozilla: Thunderbird stored OpenPGP secret keys without master password
protection (CVE-2021-29956)

* Mozilla: Partial protection of inline OpenPGP message not indicated
(CVE-2021-29957)

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/):

1961503 - CVE-2021-29957 Mozilla: Partial protection of inline OpenPGP message not indicated
1961504 - CVE-2021-29956 Mozilla: Thunderbird stored OpenPGP secret keys without master password protection
1966831 - CVE-2021-29967 Mozilla: Memory safety bugs fixed in Firefox 89 and Firefox ESR 78.11

6. Package List:

Red Hat Enterprise Linux AppStream EUS (v. 8.2):

Source:
thunderbird-78.11.0-1.el8_2.src.rpm

aarch64:
thunderbird-78.11.0-1.el8_2.aarch64.rpm
thunderbird-debuginfo-78.11.0-1.el8_2.aarch64.rpm
thunderbird-debugsource-78.11.0-1.el8_2.aarch64.rpm

ppc64le:
thunderbird-78.11.0-1.el8_2.ppc64le.rpm
thunderbird-debuginfo-78.11.0-1.el8_2.ppc64le.rpm
thunderbird-debugsource-78.11.0-1.el8_2.ppc64le.rpm

x86_64:
thunderbird-78.11.0-1.el8_2.x86_64.rpm
thunderbird-debuginfo-78.11.0-1.el8_2.x86_64.rpm
thunderbird-debugsource-78.11.0-1.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-2021-29956
https://access.redhat.com/security/cve/CVE-2021-29957
https://access.redhat.com/security/cve/CVE-2021-29967
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 2021 Red Hat, Inc.
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