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Red Hat Security Advisory
Synopsis: Important: thunderbird security update
Advisory ID: RHSA-2020:2966-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2966
Issue date: 2020-07-16
CVE Names: CVE-2020-12418 CVE-2020-12419 CVE-2020-12420
CVE-2020-12421
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1. Summary:
An update for thunderbird is now available for Red Hat Enterprise Linux 6.
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 Desktop (v. 6) – i386, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) – i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) – i386, 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: 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/):
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 Desktop (v. 6):
Source:
thunderbird-68.10.0-1.el6_10.src.rpm
i386:
thunderbird-68.10.0-1.el6_10.i686.rpm
thunderbird-debuginfo-68.10.0-1.el6_10.i686.rpm
x86_64:
thunderbird-68.10.0-1.el6_10.x86_64.rpm
thunderbird-debuginfo-68.10.0-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
Source:
thunderbird-68.10.0-1.el6_10.src.rpm
i386:
thunderbird-68.10.0-1.el6_10.i686.rpm
thunderbird-debuginfo-68.10.0-1.el6_10.i686.rpm
ppc64:
thunderbird-68.10.0-1.el6_10.ppc64.rpm
thunderbird-debuginfo-68.10.0-1.el6_10.ppc64.rpm
s390x:
thunderbird-68.10.0-1.el6_10.s390x.rpm
thunderbird-debuginfo-68.10.0-1.el6_10.s390x.rpm
x86_64:
thunderbird-68.10.0-1.el6_10.x86_64.rpm
thunderbird-debuginfo-68.10.0-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
thunderbird-68.10.0-1.el6_10.src.rpm
i386:
thunderbird-68.10.0-1.el6_10.i686.rpm
thunderbird-debuginfo-68.10.0-1.el6_10.i686.rpm
x86_64:
thunderbird-68.10.0-1.el6_10.x86_64.rpm
thunderbird-debuginfo-68.10.0-1.el6_10.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-2020-12418
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
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.
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