system
Provide references for <CVE-2019-8523>.
user
Where can I find more information about <CVE-2019-8523>?
assistant
References are available at: https://support.apple.com/HT209599, https://support.apple.com/HT209601, https://support.apple.com/HT209603, https://support.apple.com/HT209604, https://support.apple.com/HT209605.