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AUSCERT External Security Bulletin Redistribution
ESB-2020.2412
thunderbird security update
16 July 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: thunderbird
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 8
Red Hat Enterprise Linux WS/Desktop 8
Impact/Access: Denial of Service -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-12421 CVE-2020-12420 CVE-2020-12419
CVE-2020-12418 CVE-2020-12417
Reference: ESB-2020.2292
ESB-2020.2278
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:2907
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Red Hat Security Advisory
Synopsis: Important: thunderbird security update
Advisory ID: RHSA-2020:2907-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2907
Issue date: 2020-07-14
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 8.1
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 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 EUS (v. 8.1):
Source:
thunderbird-68.10.0-1.el8_1.src.rpm
ppc64le:
thunderbird-68.10.0-1.el8_1.ppc64le.rpm
thunderbird-debuginfo-68.10.0-1.el8_1.ppc64le.rpm
thunderbird-debugsource-68.10.0-1.el8_1.ppc64le.rpm
x86_64:
thunderbird-68.10.0-1.el8_1.x86_64.rpm
thunderbird-debuginfo-68.10.0-1.el8_1.x86_64.rpm
thunderbird-debugsource-68.10.0-1.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-2020-12417
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.
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