Red Hat Security Advisory 2021-0661-01 ≈ Packet Storm – Digitalmunition




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Published on February 26th, 2021 📆 | 6557 Views ⚑

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Red Hat Security Advisory 2021-0661-01 ≈ Packet Storm

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Red Hat Security Advisory

Synopsis: Important: thunderbird security update
Advisory ID: RHSA-2021:0661-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0661
Issue date: 2021-02-24
CVE Names: CVE-2021-23968 CVE-2021-23969 CVE-2021-23973
CVE-2021-23978
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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 78.8.0.

Security Fix(es):

* Mozilla: Content Security Policy violation report could have contained
the destination of a redirect (CVE-2021-23968)

* Mozilla: Content Security Policy violation report could have contained
the destination of a redirect (CVE-2021-23969)

* Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8
(CVE-2021-23978)

* Mozilla: MediaError message property could have leaked information about
cross-origin resources (CVE-2021-23973)

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/):

1932109 – CVE-2021-23969 Mozilla: Content Security Policy violation report could have contained the destination of a redirect
1932110 – CVE-2021-23968 Mozilla: Content Security Policy violation report could have contained the destination of a redirect
1932111 – CVE-2021-23973 Mozilla: MediaError message property could have leaked information about cross-origin resources
1932112 – CVE-2021-23978 Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
thunderbird-78.8.0-1.el7_9.src.rpm

x86_64:
thunderbird-78.8.0-1.el7_9.x86_64.rpm
thunderbird-debuginfo-78.8.0-1.el7_9.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

Source:
thunderbird-78.8.0-1.el7_9.src.rpm

ppc64le:
thunderbird-78.8.0-1.el7_9.ppc64le.rpm
thunderbird-debuginfo-78.8.0-1.el7_9.ppc64le.rpm

x86_64:
thunderbird-78.8.0-1.el7_9.x86_64.rpm
thunderbird-debuginfo-78.8.0-1.el7_9.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
thunderbird-78.8.0-1.el7_9.src.rpm

x86_64:
thunderbird-78.8.0-1.el7_9.x86_64.rpm
thunderbird-debuginfo-78.8.0-1.el7_9.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-2021-23968
https://access.redhat.com/security/cve/CVE-2021-23969
https://access.redhat.com/security/cve/CVE-2021-23973
https://access.redhat.com/security/cve/CVE-2021-23978
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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