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RedHat 8.1: RHSA-2020-4157-01 Important: Thunderbird Memory Safety Issues

red hat
Calendar Grey October 1, 2020
Dist Redhat Esm H88
Crucial security patch from Red Hat for Thunderbird addresses critical vulnerabilities, ensuring better protection.
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 78.3.1.
Security Fix(es):
* Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3 (CVE-2020-15673)
* Mozilla: XSS when pasting attacker-controlled data into a contenteditable element (CVE-2020-15676)
* Mozilla: Download origin spoofing via redirect (CVE-2020-15677)
* Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario (CVE-2020-15678)
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 important web security thunderbird memory safety

References

https://access.redhat.com/security/cve/CVE-2020-15673 https://access.redhat.com/security/cve/CVE-2020-15676 https://access.redhat.com/security/cve/CVE-2020-15677 https://access.redhat.com/security/cve/CVE-2020-15678 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream EUS (v. 8.1):
Source: thunderbird-78.3.1-1.el8_1.src.rpm
ppc64le: thunderbird-78.3.1-1.el8_1.ppc64le.rpm thunderbird-debuginfo-78.3.1-1.el8_1.ppc64le.rpm thunderbird-debugsource-78.3.1-1.el8_1.ppc64le.rpm
x86_64: thunderbird-78.3.1-1.el8_1.x86_64.rpm thunderbird-debuginfo-78.3.1-1.el8_1.x86_64.rpm thunderbird-debugsource-78.3.1-1.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-2020:4157-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4157
Issue date: 2020-10-01

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 important web security thunderbird memory safety

Relevant Releases Architectures

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

Bugs Fixed

1881664 - CVE-2020-15677 Mozilla: Download origin spoofing via redirect

1881665 - CVE-2020-15676 Mozilla: XSS when pasting attacker-controlled data into a contenteditable element

1881666 - CVE-2020-15678 Mozilla: When recursing through layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free scenario

1881667 - CVE-2020-15673 Mozilla: Memory safety bugs fixed in Firefox 81 and Firefox ESR 78.3

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