Provide references for CVE-2018-4394.
Where can I find more information about CVE-2018-4394?
References are available at: https://support.apple.com/kb/HT209193, https://support.apple.com/kb/HT209192, https://support.apple.com/kb/HT209195, https://support.apple.com/kb/HT209194, https://support.apple.com/kb/HT209197.