An issue was discovered in certain Apple products. iOS before 11 is affected. tvOS before 11 is affected. The issue involves the "Wi-Fi" component. It might allow remote attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via crafted Wi-Fi traffic that leverages a race condition.
https://www.exploit-db.com/exploits/42996/
https://support.apple.com/HT208113
https://support.apple.com/HT208112
https://bugs.chromium.org/p/project-zero/issues/detail?id=1317