Description
If a MIME encoded email contains an OpenPGP inline signed or encrypted message part, but also contains an additional unprotected part, Thunderbird did not indicate that only parts of the message are protected.
Solution(s)
mozilla-thunderbird-upgrade-78_10_2
Referenceshttps://attackerkb.com/topics/cve-2021-29957 CVE - 2021-29957 http://www.mozilla.org/security/announce/2021/mfsa2021-22.html