Provide references for CVE-2021-1754.
Where can I find more information about CVE-2021-1754?
References are available at: https://support.apple.com/en-us/HT212147, https://support.apple.com/en-us/HT212146, https://support.apple.com/en-us/HT212148, https://support.apple.com/en-us/HT212149.