Security Vulnerabilities fixed in thunderbird RHSA-2021:1193

Description

Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.9.1. Security Fix(es): Mozilla: An attacker may use Thunderbird's OpenPGP key refresh mechanism to poison an existing key (CVE-2021-23991) Mozilla: A crafted OpenPGP key with an invalid user ID could be used to confuse the user (CVE-2021-23992) Mozilla: Inability to send encrypted OpenPGP email after importing a crafted OpenPGP key (CVE-2021-23993) Mozilla: An attacker may use Thunderbird's OpenPGP key refresh mechanism to poison an existing key (CVE-2021-23991) Mozilla: A crafted OpenPGP key with an invalid user ID could be used to confuse the user (CVE-2021-23992) Mozilla: Inability to send encrypted OpenPGP email after importing a crafted OpenPGP key (CVE-2021-23993) 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. SolutionFor 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.

Affected Applications

thunderbird

CVE References

CVE-2021-23991 CVE-2021-23992 CVE-2021-23993

Other References

https://access.redhat.com/errata/RHSA-2021:1193