-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2018-7-23-4 Additional information for APPLE-SA-2018-06-01-6 tvOS 11.4 tvOS 11.4 addresses the following: Bluetooth Available for: Apple TV 4K Impact: An attacker in a privileged network position may be able to intercept Bluetooth traffic Description: An input validation issue existed in Bluetooth. This issue was addressed with improved input validation. CVE-2018-5383: Lior Neumann and Eli Biham Entry added July 23, 2018 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 GroA (@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 GroA (@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----- iQIzBAEBCAAdFiEEfcwwPWJ3e0Ig26mf8ecVjteJiCYFAltUsiMACgkQ8ecVjteJ iCYcZBAAusSQ6lM5Qebyc48iNEu/DUrOwUVyN6MNjo0699Xm+kbu+0u/JQNf75jw ZeelK31NLRyRx9BuK7u4J20gi+hsWI7N9wtVkeOaPiE/Ha45uEVaJ6lSSJOIZ3rZ oXb4PiL8+bSukiRgBvFhnxDwGCGefg8udRjtONRlCuMvyZAY09LT6cgZOXSEJEbF ecVmvDAEEwH1hcTV7PJbQ4nCkv97DA8dPVTbUUbtPXCOPYjsClz1JSUubOSDw3d4 7tq4pfs6ZJFZCE8JFJFY+CCIWuE1FppTE7FVJVfFdpAri+prTeGZJppzEjJDZR2g 4lCOyx926Mp5tqZx6WZc1Xkz8LJaZbEWPrfGW4wKMFIC7WPwhyi7y2NqVfcjbubW aOsfQFwbCx9KlfOfUMJtbAaha7TBiDJV5u2PMILL3ct2BRX+LqEUrlrR1uwhF5VZ npPX9cEwMbWRCj7QJC9bmRT1mPYKD+sK5HqBc7Ftp3NYv1hjhEz6iVcF7HYY9T2j aYzvsXaMilihEaDRu4H/0wLX4abUrOtUwFowuehUkNF30cgBrtyWcJl6K6/WaW2C IdmF0IB4T4MRWyPKY2r1A+rBerCaoxb0IBucOP9JO4V1uDrCoHdxEL9LfjXlz/tx CiPvy4EaV2aIDjSfkf75IXtHx2ueIFfdTGVH1OEdX9JoCSqNRPQ= =8ofX -----END PGP SIGNATURE-----