Provide references for CVE-2021-30852.
Where can I find more information about CVE-2021-30852?
References are available at: https://support.apple.com/en-us/HT212807, https://support.apple.com/en-us/HT212814, https://support.apple.com/en-us/HT212819, https://support.apple.com/en-us/HT212815, https://support.apple.com/kb/HT212869, https://support.apple.com/kb/HT212953.