RHSA-2020:0565 — Security Advisory

Red Hat Security Advisory: thunderbird security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · February 21, 2020

Updated · November 22, 2025

Topic

An update for thunderbird is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions.

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.

Description

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 68.5.0.

Security Fix(es):

  • Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800)

  • Mozilla: Out-of-bounds read when processing certain email messages (CVE-2020-6793)

  • Mozilla: Setting a master password post-Thunderbird 52 does not delete unencrypted previously stored passwords (CVE-2020-6794)

  • Mozilla: Crash processing S/MIME messages with multiple signatures (CVE-2020-6795)

  • Mozilla: Incorrect parsing of template tag could result in JavaScript injection (CVE-2020-6798)

  • Mozilla: Message ID calculation was based on uninitialized data (CVE-2020-6792)

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.

Related CVEs

RHSA-2020:0565 — Red Hat Security Advisory: thunderbird security update | PulseLinux