Provide references for CVE-2021-30685.
Where can I find more information about CVE-2021-30685?
References are available at: https://support.apple.com/en-us/HT212528, https://support.apple.com/en-us/HT212529, https://support.apple.com/en-us/HT212532, https://support.apple.com/en-us/HT212533, https://support.apple.com/en-us/HT212530.