This update for ruby2.5 fixes the following issues:
- CVE-2022-28739: Fixed a buffer overrun in String-to-Float conversion (bsc#1198441).
- CVE-2021-41817: Fixed a regular expression denial of service in Date Parsing Methods (bsc#1193035).
- CVE-2021-32066: Fixed a StartTLS stripping vulnerability in Net:IMAP (bsc#1188160).
- CVE-2021-31810: Fixed a trusting FTP PASV responses vulnerability in Net:FTP (bsc#1188161).
- CVE-2021-31799: Fixed a command injection vulnerability in RDoc (bsc#1190375).