Provide references for CVE-2021-30783.
Where can I find more information about CVE-2021-30783?
References are available at: https://support.apple.com/en-us/HT212602, https://support.apple.com/en-us/HT212600, https://support.apple.com/en-us/HT212603, https://support.apple.com/kb/HT212805, http://seclists.org/fulldisclosure/2021/Sep/40.