-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2018-06-01-6 tvOS 11.4 tvOS 11.4 addresses the following: Crash Reporter Available for: Apple TV 4K and Apple TV (4th generation) Impact: An application may be able to gain elevated privileges Description: A memory corruption issue was addressed with improved error handling. CVE-2018-4206: Ian Beer of Google Project Zero FontParser Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing a maliciously crafted font file may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved validation. CVE-2018-4211: Proteas of Qihoo 360 Nirvan Team Kernel Available for: Apple TV 4K and Apple TV (4th generation) Impact: An application may be able to execute arbitrary code with kernel privileges Description: A buffer overflow was addressed with improved bounds checking. CVE-2018-4241: Ian Beer of Google Project Zero CVE-2018-4243: Ian Beer of Google Project Zero Kernel Available for: Apple TV 4K and Apple TV (4th generation) Impact: An attacker in a privileged position may be able to perform a denial of service attack Description: A denial of service issue was addressed with improved validation. CVE-2018-4249: Kevin Backhouse of Semmle Ltd. libxpc Available for: Apple TV 4K and Apple TV (4th generation) Impact: An application may be able to gain elevated privileges Description: A logic issue was addressed with improved validation. CVE-2018-4237: Samuel Groß (@5aelo) working with Trend Micro's Zero Day Initiative Messages Available for: Apple TV 4K and Apple TV (4th generation) Impact: A local user may be able to conduct impersonation attacks Description: An injection issue was addressed with improved input validation. CVE-2018-4235: Anurodh Pokharel of Salesforce.com Messages Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing a maliciously crafted message may lead to a denial of service Description: This issue was addressed with improved message validation. CVE-2018-4240: Sriram (@Sri_Hxor) of PrimeFort Pvt. Ltd Security Available for: Apple TV 4K and Apple TV (4th generation) Impact: A local user may be able to read a persistent device identifier Description: An authorization issue was addressed with improved state management. CVE-2018-4224: Abraham Masri (@cheesecakeufo) Security Available for: Apple TV 4K and Apple TV (4th generation) Impact: A local user may be able to read a persistent account identifier Description: An authorization issue was addressed with improved state management. CVE-2018-4223: Abraham Masri (@cheesecakeufo) UIKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing a maliciously crafted text file may lead to a denial of service Description: A validation issue existed in the handling of text. This issue was addressed with improved validation of text. CVE-2018-4198: Hunter Byrnes WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Visiting a maliciously crafted website may lead to cookies being overwritten Description: A permissions issue existed in the handling of web browser cookies. This issue was addressed with improved restrictions. CVE-2018-4232: an anonymous researcher, Aymeric Chaib WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A race condition was addressed with improved locking. CVE-2018-4192: Markus Gaasedelen, Nick Burnett, and Patrick Biernat of Ret2 Systems, Inc working with Trend Micro's Zero Day Initiative WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing maliciously crafted web content may lead to an unexpected Safari crash Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4214: found by OSS-Fuzz WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4204: found by OSS-Fuzz, Richard Zhu (fluorescence) working with Trend Micro's Zero Day Initiative WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A type confusion issue was addressed with improved memory handling. CVE-2018-4246: found by OSS-Fuzz WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved state management. CVE-2018-4200: Ivan Fratric of Google Project Zero WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Visiting a malicious website may lead to address bar spoofing Description: An inconsistent user interface issue was addressed with improved state management. CVE-2018-4188: YoKo Kho (@YoKoAcc) of Mitra Integrasi Informatika, PT WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: Multiple memory corruption issues were addressed with improved memory handling. CVE-2018-4201: an anonymous researcher CVE-2018-4218: Natalie Silvanovich of Google Project Zero CVE-2018-4233: Samuel Groß (@5aelo) working with Trend Micro's Zero Day Initiative WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A buffer overflow issue was addressed with improved memory handling. CVE-2018-4199: Alex Plaskett, Georgi Geshev, Fabi Beterke, and Nils of MWR Labs working with Trend Micro's Zero Day Initiative WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Visiting a maliciously crafted website may leak sensitive data Description: Credentials were unexpectedly sent when fetching CSS mask images. This was addressed by using a CORS-enabled fetch method. CVE-2018-4190: Jun Kokatsu (@shhnjk) WebKit Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2018-4222: Natalie Silvanovich of Google Project Zero Installation note: Apple TV will periodically check for software updates. Alternatively, you may manually check for software updates by selecting "Settings -> System -> Software Update -> Update Software." To check the current version of software, select "Settings -> General -> About." Information will also be posted to the Apple Security Updates web site: https://support.apple.com/kb/HT201222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- iQJdBAEBCABHFiEEWpnGpHhyhjM9LuGIyxcaHpDFUHMFAlsRa1EpHHByb2R1Y3Qt c2VjdXJpdHktbm9yZXBseUBsaXN0cy5hcHBsZS5jb20ACgkQyxcaHpDFUHO+jA// Q97zxMxR0YABgnvVJxya7HtjaNYTemO6GYoZd3Pdow6K4LtUcVY1pchgriZoRwOw B/SmfN6Leij3XIjuL7PzHE92hLQdJMVmSwlD3vsSffnMRTEpE5jFobSCOf6mBnUm o1TZX3NwzjbA76LO6DoPmxrehNlDCpOXggL/7A1YsYT645P7hJQTGlQjA9HrIKOI txMQTWmLaUTUDFxDf6fgKbyE5jhpUsqfKjLbEUr17gRhX9x6r4MvBUdOS6BXFJ+V BD8br3BQWOOrMSzmQFSmUlzoxu68lu+wZ0QuGkQ14F3yE4dI2jkAsA8A6w5X6hx4 20nD7ETW13dLPfZUq8gka5wyvaP5ruaPf3Rgu/F5TAHO9x2NdAbffJve05cD2L+w qLjdihlxoFycOySGqk3xWIJxVp097qPjlL36UV18nCif0SeoCTxYsHxTcDoCjH8j 8SJvtzUG270mvA4keaFNh9ICLWiSmaq7b7ax4Jske13vl269PEiR0l25PyICdvL6 CcnAycpvJDsaWwkL8Pqo/BuIJAWufHU+zxU/dgMgbJ6bWTyIGN002+9jGFtWLqbu FWLXjBmDAvwHYd/x95va5Eg2yehbGLC1f0PwuH9UTXo4PXjc9HE7WaMAz8KnaZAn Z8Df+JmAqG9NSsTRqhibKdUMWU1RnFh4bVLcL0fbGwI= =tT3X -----END PGP SIGNATURE-----
