Mimekit has vulnerable dependency that can lead to denial of service

Summary

Denial of service vulnerability.

Details

See: https://github.com/advisories/GHSA-447r-wph3-92pm and https://github.com/dotnet/announcements/issues/312

PoC

Update System.Security.Cryptography.Pkcs to 8.0.1 so that the transitive dependency with the issue gets updated

Impact

Denial of service vulnerability. Affects MimeKit (>= v3.0.0 and <= v4.7.0) when used to decrypt or verify incoming S/MIME messages as well as importing 3rd-party X.509 certificates for use with encrypting outgoing S/MIME messages.