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Red Hat Security Advisory
Synopsis: Important: thunderbird security update
Advisory ID: RHSA-2020:0565-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0565
Issue date: 2020-02-20
CVE Names: CVE-2020-6792 CVE-2020-6793 CVE-2020-6794
CVE-2020-6795 CVE-2020-6798 CVE-2020-6800
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1. Summary:
An update for thunderbird is now available for Red Hat Enterprise Linux 8.0
Update Services for SAP Solutions.
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 E4S (v. 8.0) – ppc64le, x86_64
3. Description:
Mozilla Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 68.5.0.
Security Fix(es):
* Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5
(CVE-2020-6800)
* Mozilla: Out-of-bounds read when processing certain email messages
(CVE-2020-6793)
* Mozilla: Setting a master password post-Thunderbird 52 does not delete
unencrypted previously stored passwords (CVE-2020-6794)
* Mozilla: Crash processing S/MIME messages with multiple signatures
(CVE-2020-6795)
* Mozilla: Incorrect parsing of template tag could result in JavaScript
injection (CVE-2020-6798)
* Mozilla: Message ID calculation was based on uninitialized data
(CVE-2020-6792)
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/):
1801918 – CVE-2020-6798 Mozilla: Incorrect parsing of template tag could result in JavaScript injection
1801920 – CVE-2020-6800 Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5
1801955 – CVE-2020-6793 Mozilla: Out-of-bounds read when processing certain email messages
1801956 – CVE-2020-6794 Mozilla: Setting a master password post-Thunderbird 52 does not delete unencrypted previously stored passwords
1801957 – CVE-2020-6795 Mozilla: Crash processing S/MIME messages with multiple signatures
1801958 – CVE-2020-6792 Mozilla: Message ID calculation was based on uninitialized data
6. Package List:
Red Hat Enterprise Linux AppStream E4S (v. 8.0):
Source:
thunderbird-68.5.0-1.el8_0.src.rpm
ppc64le:
thunderbird-68.5.0-1.el8_0.ppc64le.rpm
thunderbird-debuginfo-68.5.0-1.el8_0.ppc64le.rpm
thunderbird-debugsource-68.5.0-1.el8_0.ppc64le.rpm
x86_64:
thunderbird-68.5.0-1.el8_0.x86_64.rpm
thunderbird-debuginfo-68.5.0-1.el8_0.x86_64.rpm
thunderbird-debugsource-68.5.0-1.el8_0.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-2020-6792
https://access.redhat.com/security/cve/CVE-2020-6793
https://access.redhat.com/security/cve/CVE-2020-6794
https://access.redhat.com/security/cve/CVE-2020-6795
https://access.redhat.com/security/cve/CVE-2020-6798
https://access.redhat.com/security/cve/CVE-2020-6800
https://access.redhat.com/security/updates/classification/#important
https://www.mozilla.org/en-US/security/advisories/mfsa2020-07/
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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