RedHat: RHSA-2021-4954:04 Critical: thunderbird security update

Advisories

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

Synopsis:          Critical: thunderbird security update
Advisory ID:       RHSA-2021:4954-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:4954
Issue date:        2021-12-06
CVE Names:         CVE-2021-43527 
=====================================================================

1. Summary:

An update for thunderbird is now available for Red Hat Enterprise Linux 8.2
Extended Update Support.

Red Hat Product Security has rated this update as having a security impact
of Critical. 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. 8.2) - aarch64, ppc64le, x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

* nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and
RSA-PSS) (CVE-2021-43527)

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/):

2024370 - CVE-2021-43527 nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and RSA-PSS)

6. Package List:

Red Hat Enterprise Linux AppStream EUS (v. 8.2):

Source:
thunderbird-91.3.0-3.el8_2.src.rpm

aarch64:
thunderbird-91.3.0-3.el8_2.aarch64.rpm
thunderbird-debuginfo-91.3.0-3.el8_2.aarch64.rpm
thunderbird-debugsource-91.3.0-3.el8_2.aarch64.rpm

ppc64le:
thunderbird-91.3.0-3.el8_2.ppc64le.rpm
thunderbird-debuginfo-91.3.0-3.el8_2.ppc64le.rpm
thunderbird-debugsource-91.3.0-3.el8_2.ppc64le.rpm

x86_64:
thunderbird-91.3.0-3.el8_2.x86_64.rpm
thunderbird-debuginfo-91.3.0-3.el8_2.x86_64.rpm
thunderbird-debugsource-91.3.0-3.el8_2.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-2021-43527
https://access.redhat.com/security/updates/classification/#critical
https://access.redhat.com/security/vulnerabilities/RHSB-2021-008

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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RedHat: RHSA-2021-4954:04 Critical: thunderbird security update

An update for thunderbird is now available for Red Hat Enterprise Linux 8.2 Extended Update Support

Summary

Mozilla Thunderbird is a standalone mail and newsgroup client.
Security Fix(es):
* nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and RSA-PSS) (CVE-2021-43527)
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.

Solution

For details on how to apply this update, which includes the changesdescribed in this advisory, refer to:https://access.redhat.com/articles/11258All running instances of Thunderbird must be restarted for the update totake effect.

References

https://access.redhat.com/security/cve/CVE-2021-43527 https://access.redhat.com/security/updates/classification/#critical https://access.redhat.com/security/vulnerabilities/RHSB-2021-008

Package List

Red Hat Enterprise Linux AppStream EUS (v. 8.2):
Source: thunderbird-91.3.0-3.el8_2.src.rpm
aarch64: thunderbird-91.3.0-3.el8_2.aarch64.rpm thunderbird-debuginfo-91.3.0-3.el8_2.aarch64.rpm thunderbird-debugsource-91.3.0-3.el8_2.aarch64.rpm
ppc64le: thunderbird-91.3.0-3.el8_2.ppc64le.rpm thunderbird-debuginfo-91.3.0-3.el8_2.ppc64le.rpm thunderbird-debugsource-91.3.0-3.el8_2.ppc64le.rpm
x86_64: thunderbird-91.3.0-3.el8_2.x86_64.rpm thunderbird-debuginfo-91.3.0-3.el8_2.x86_64.rpm thunderbird-debugsource-91.3.0-3.el8_2.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/

Severity
Advisory ID: RHSA-2021:4954-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4954
Issued Date: : 2021-12-06
CVE Names: CVE-2021-43527

Topic

An update for thunderbird is now available for Red Hat Enterprise Linux 8.2Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Critical. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream EUS (v. 8.2) - aarch64, ppc64le, x86_64

Bugs Fixed

2024370 - CVE-2021-43527 nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and RSA-PSS)

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