This update for curl fixes the following issues: - CVE-2021-22898: TELNET stack contents disclosure - CVE-2021-22876: The automatic referer leaks credentials - CVE-2020-8286: Inferior OCSP verification - CVE-2020-8285: FTP wildcard stack overflow - CVE-2020-8284: Trusting FTP PASV responses - CVE-2020-8231: libcurl will pick and use the wrong connection with multiple requests with libcurl"s multi API and the "CURLOPT_CONNECT_ONLY" option - Fix: SFTP uploads result in empty uploaded files