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Red Hat Enterprise Linux 8 RHSA-2021-0089-01 Critical Thunder-bird Threat

red hat
Calendar Grey January 13, 2021
Dist Redhat Esm H88
Essential Thunderbird security patch for Red Hat Enterprise Linux 8 tackles a major vulnerability impacting its user base.
An update for thunderbird is now available for Red Hat Enterprise Linux 8

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.

Summary

Mozilla Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 78.6.1.
Security Fix(es):
* Mozilla: Use-after-free write when handling a malicious COOKIE-ECHO SCTP chunk (CVE-2020-16044)
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.

Topics%20covered

Topics Covered

security advisory security issue update red hat critical red hat enterprise linux thunderbird mail client

References

https://access.redhat.com/security/cve/CVE-2020-16044 https://access.redhat.com/security/updates/classification#critical

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: thunderbird-78.6.1-1.el8_3.src.rpm
aarch64: thunderbird-78.6.1-1.el8_3.aarch64.rpm thunderbird-debuginfo-78.6.1-1.el8_3.aarch64.rpm thunderbird-debugsource-78.6.1-1.el8_3.aarch64.rpm
ppc64le: thunderbird-78.6.1-1.el8_3.ppc64le.rpm thunderbird-debuginfo-78.6.1-1.el8_3.ppc64le.rpm thunderbird-debugsource-78.6.1-1.el8_3.ppc64le.rpm
x86_64: thunderbird-78.6.1-1.el8_3.x86_64.rpm thunderbird-debuginfo-78.6.1-1.el8_3.x86_64.rpm thunderbird-debugsource-78.6.1-1.el8_3.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
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:0089-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0089
Issue date: 2021-01-13

Topic

An update for thunderbird is now available for Red Hat Enterprise Linux 8.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.

Topics%20covered

Topics Covered

security advisory security issue update red hat critical red hat enterprise linux thunderbird mail client

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, x86_64

Bugs Fixed

1913503 - CVE-2020-16044 Mozilla: Use-after-free write when handling a malicious COOKIE-ECHO SCTP chunk

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