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Red Hat Security Advisory
Synopsis: Important: thunderbird security update
Advisory ID: RHSA-2020:2615-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2615
Issue date: 2020-06-22
CVE Names: CVE-2020-12398 CVE-2020-12405 CVE-2020-12406
CVE-2020-12410
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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 68.9.0.
Security Fix(es):
* Mozilla: Security downgrade with IMAP STARTTLS leads to information
leakage (CVE-2020-12398)
* Mozilla: Use-after-free in SharedWorkerService (CVE-2020-12405)
* Mozilla: JavaScript Type confusion with NativeTypes (CVE-2020-12406)
* Mozilla: Memory safety bugs fixed in Firefox 77 and Firefox ESR 68.9
(CVE-2020-12410)
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/):
1843030 – CVE-2020-12410 Mozilla: Memory safety bugs fixed in Firefox 77 and Firefox ESR 68.9
1843312 – CVE-2020-12406 Mozilla: JavaScript Type confusion with NativeTypes
1843313 – CVE-2020-12405 Mozilla: Use-after-free in SharedWorkerService
1846556 – CVE-2020-12398 Mozilla: Security downgrade with IMAP STARTTLS leads to information leakage
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
thunderbird-68.9.0-1.el7_8.src.rpm
x86_64:
thunderbird-68.9.0-1.el7_8.x86_64.rpm
thunderbird-debuginfo-68.9.0-1.el7_8.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
Source:
thunderbird-68.9.0-1.el7_8.src.rpm
ppc64le:
thunderbird-68.9.0-1.el7_8.ppc64le.rpm
thunderbird-debuginfo-68.9.0-1.el7_8.ppc64le.rpm
x86_64:
thunderbird-68.9.0-1.el7_8.x86_64.rpm
thunderbird-debuginfo-68.9.0-1.el7_8.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
thunderbird-68.9.0-1.el7_8.src.rpm
x86_64:
thunderbird-68.9.0-1.el7_8.x86_64.rpm
thunderbird-debuginfo-68.9.0-1.el7_8.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-2020-12398
https://access.redhat.com/security/cve/CVE-2020-12405
https://access.redhat.com/security/cve/CVE-2020-12406
https://access.redhat.com/security/cve/CVE-2020-12410
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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