Mozilla Thunderbird is a standalone mail and newsgroup client.
This update upgrades Thunderbird to version 68.5.0.
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: 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.