- Fix command injection vulnerability in RDoc.
- Fix FTP PASV command response can cause Net::FTP to connect to arbitrary host.
- Fix StartTLS stripping vulnerability in Net::IMAP
- Fix dependencies of gems with explicit source installed from a
different source.
Resolves: CVE-2021-31810
Resolves: CVE-2021-32066
Resolves: CVE-2021-31799
Resolves: CVE-2020-36327