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Red Hat 8.1: RHSA-2020-2611-01 Important: Thunderbird Security Fixes

red hat
Calendar Grey June 18, 2020
Dist Redhat Esm H88
A new security patch for Thunderbird on Red Hat 8.1 tackles significant vulnerabilities posing serious risks.
An update for thunderbird is now available for Red Hat Enterprise Linux 8.1 Extended Update Support

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 68.9.0.
Security Fix(es):
* Mozilla: Security downgrade with IMAP STARTTLS leads to information leakage (CVE-2020-12398)
* Mozilla: Use-after-free in SharedWorkerService (CVE-2020-12405)
* Mozilla: JavaScript Type confusion with NativeTypes (CVE-2020-12406)
* Mozilla: Memory safety bugs fixed in Firefox 77 and Firefox ESR 68.9 (CVE-2020-12410)
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 Red Hat DoS thunderbird memory safety important update information leakage

References

https://access.redhat.com/security/cve/CVE-2020-12398 https://access.redhat.com/security/cve/CVE-2020-12405 https://access.redhat.com/security/cve/CVE-2020-12406 https://access.redhat.com/security/cve/CVE-2020-12410 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream EUS (v. 8.1):
Source: thunderbird-68.9.0-1.el8_1.src.rpm
ppc64le: thunderbird-68.9.0-1.el8_1.ppc64le.rpm thunderbird-debuginfo-68.9.0-1.el8_1.ppc64le.rpm thunderbird-debugsource-68.9.0-1.el8_1.ppc64le.rpm
x86_64: thunderbird-68.9.0-1.el8_1.x86_64.rpm thunderbird-debuginfo-68.9.0-1.el8_1.x86_64.rpm thunderbird-debugsource-68.9.0-1.el8_1.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
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2611-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2611
Issue date: 2020-06-18

Topic

An update for thunderbird is now available for Red Hat Enterprise Linux 8.1Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat DoS thunderbird memory safety important update information leakage

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream EUS (v. 8.1) - ppc64le, x86_64

Bugs Fixed

1843030 - CVE-2020-12410 Mozilla: Memory safety bugs fixed in Firefox 77 and Firefox ESR 68.9

1843312 - CVE-2020-12406 Mozilla: JavaScript Type confusion with NativeTypes

1843313 - CVE-2020-12405 Mozilla: Use-after-free in SharedWorkerService

1846556 - CVE-2020-12398 Mozilla: Security downgrade with IMAP STARTTLS leads to information leakage

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