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

Synopsis:          Important: thunderbird security update
Advisory ID:       RHSA-2023:4953-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:4953
Issue date:        2023-09-04
=====================================================================

1. Summary:

An update for thunderbird is now available for Red Hat Enterprise Linux 8.6
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.8.6) - aarch64, ppc64le, s390x, x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 102.15.0.

Security Fix(es):

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/):

2236071 - CVE-2023-4573 Mozilla: Memory corruption in IPC CanvasTranslator
2236072 - CVE-2023-4574 Mozilla: Memory corruption in IPC ColorPickerShownCallback
2236073 - CVE-2023-4575 Mozilla: Memory corruption in IPC FilePickerShownCallback
2236075 - CVE-2023-4577 Mozilla: Memory corruption in JIT UpdateRegExpStatics
2236076 - CVE-2023-4051 Mozilla: Full screen notification obscured by file open dialog
2236077 - CVE-2023-4578 Mozilla: Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception
2236078 - CVE-2023-4053 Mozilla: Full screen notification obscured by external program
2236079 - CVE-2023-4580 Mozilla: Push notifications saved to disk unencrypted
2236080 - CVE-2023-4581 Mozilla: XLL file extensions were downloadable without warnings
2236082 - CVE-2023-4583 Mozilla: Browsing Context potentially not cleared when closing Private Window
2236084 - CVE-2023-4584 Mozilla: Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird 102.15, and Thunderbird 115.2
2236086 - CVE-2023-4585 Mozilla: Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2

6. Package List:

Red Hat Enterprise Linux AppStream EUS (v.8.6):

Source:
thunderbird-102.15.0-1.el8_6.src.rpm

aarch64:
thunderbird-102.15.0-1.el8_6.aarch64.rpm
thunderbird-debuginfo-102.15.0-1.el8_6.aarch64.rpm
thunderbird-debugsource-102.15.0-1.el8_6.aarch64.rpm

ppc64le:
thunderbird-102.15.0-1.el8_6.ppc64le.rpm
thunderbird-debuginfo-102.15.0-1.el8_6.ppc64le.rpm
thunderbird-debugsource-102.15.0-1.el8_6.ppc64le.rpm

s390x:
thunderbird-102.15.0-1.el8_6.s390x.rpm
thunderbird-debuginfo-102.15.0-1.el8_6.s390x.rpm
thunderbird-debugsource-102.15.0-1.el8_6.s390x.rpm

x86_64:
thunderbird-102.15.0-1.el8_6.x86_64.rpm
thunderbird-debuginfo-102.15.0-1.el8_6.x86_64.rpm
thunderbird-debugsource-102.15.0-1.el8_6.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/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 2023 Red Hat, Inc.
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