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Red Hat Security Advisory 2020-4156-01

Red Hat Security Advisory 2020-4156-01
Posted Oct 1, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4156-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.3.1. Issues addressed include cross site scripting, spoofing, and use-after-free vulnerabilities.

tags | advisory, spoof, vulnerability, xss
systems | linux, redhat
advisories | CVE-2020-15673, CVE-2020-15676, CVE-2020-15677, CVE-2020-15678
MD5 | 2f878bb9f01f845d1d0b90021e38dfe5

Red Hat Security Advisory 2020-4156-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: thunderbird security update
Advisory ID: RHSA-2020:4156-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4156
Issue date: 2020-10-01
CVE Names: CVE-2020-15673 CVE-2020-15676 CVE-2020-15677
CVE-2020-15678
=====================================================================

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 78.3.1.

Security Fix(es):

* Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3
(CVE-2020-15673)

* Mozilla: XSS when pasting attacker-controlled data into a contenteditable
element (CVE-2020-15676)

* Mozilla: Download origin spoofing via redirect (CVE-2020-15677)

* Mozilla: When recursing through layers while scrolling, an iterator may
have become invalid, resulting in a potential use-after-free scenario
(CVE-2020-15678)

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/):

1881664 - CVE-2020-15677 Mozilla: Download origin spoofing via redirect
1881665 - CVE-2020-15676 Mozilla: XSS when pasting attacker-controlled data into a contenteditable element
1881666 - CVE-2020-15678 Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario
1881667 - CVE-2020-15673 Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3

6. Package List:

Red Hat Enterprise Linux AppStream E4S (v. 8.0):

Source:
thunderbird-78.3.1-1.el8_0.src.rpm

ppc64le:
thunderbird-78.3.1-1.el8_0.ppc64le.rpm
thunderbird-debuginfo-78.3.1-1.el8_0.ppc64le.rpm
thunderbird-debugsource-78.3.1-1.el8_0.ppc64le.rpm

x86_64:
thunderbird-78.3.1-1.el8_0.x86_64.rpm
thunderbird-debuginfo-78.3.1-1.el8_0.x86_64.rpm
thunderbird-debugsource-78.3.1-1.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-2020-15673
https://access.redhat.com/security/cve/CVE-2020-15676
https://access.redhat.com/security/cve/CVE-2020-15677
https://access.redhat.com/security/cve/CVE-2020-15678
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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