Provide references for CVE-2017-2404.
Where can I find more information about CVE-2017-2404?
References are available at: https://www.engadget.com/2017/03/31/apple-fixes-ios-loophole-911-overload/, http://www.securitytracker.com/id/1038139, http://www.securityfocus.com/bid/97138, https://support.apple.com/HT207617.