SUSE-SU-2021:2003-1 Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues: Mozilla Thunderbird 78.11 bsc1186696 Security issues fixed: - CVE-2021-29964: Out of bounds-read when parsing a WMCOPYDATA message - CVE-2021-29967: Memory safety bugs fixed in Thunderbird 78.11 General improvements: - OpenPGP could n...