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About the security content of tvOS 12 - Apple Support

Description

## About Apple security updates For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the [Apple security updates](<https://support.apple.com/kb/HT201222>) page. For more information about security, see the [Apple Product Security](<https://support.apple.com/kb/HT201220>) page. You can encrypt communications with Apple using the [Apple Product Security PGP Key](<https://support.apple.com/kb/HT201601>). Apple security documents reference vulnerabilities by [CVE-ID](<http://cve.mitre.org/about/>) when possible. ![](/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png) ## tvOS 12 Released September 17, 2018 **Auto Unlock** Available for: Apple TV 4K and Apple TV (4th generation) Impact: A malicious application may be able to access local users AppleIDs Description: A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. CVE-2018-4321: Min (Spark) Zheng, Xiaolong Bai of Alibaba Inc. Entry added September 24, 2018 **Bluetooth** Available for: Apple TV (4th generation) 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 **CFNetwork** Available for: Apple TV 4K and Apple TV (4th generation) Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4126: Bruno Keith (@bkth_) working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 **CoreFoundation** Available for: Apple TV 4K and Apple TV (4th generation) Impact: A malicious application may be able to elevate privileges Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4412: The UK's National Cyber Security Centre (NCSC) Entry added October 30, 2018 **CoreFoundation** 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 input validation. CVE-2018-4414: The UK's National Cyber Security Centre (NCSC) Entry added October 30, 2018 **CoreText** Available for: Apple TV 4K and Apple TV (4th generation) Impact: Processing a maliciously crafted text file may lead to arbitrary code execution Description: A use after free issue was addressed with improved memory management. CVE-2018-4347: Vasyl Tkachuk of Readdle Entry added October 30, 2018, updated December 18, 2018 **dyld** Available for: Apple TV 4K and Apple TV (4th generation) Impact: A malicious application may be able to modify protected parts of the file system Description: A configuration issue was addressed with additional restrictions. CVE-2018-4433: Vitaly Cheptsov Entry added January 22, 2019 **Grand Central Dispatch** Available for: Apple TV 4K and Apple TV (4th generation) Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4426: Brandon Azad Entry added October 30, 2018 **Heimdal** Available for: Apple TV 4K and Apple TV (4th generation) Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4331: Brandon Azad CVE-2018-4332: Brandon Azad CVE-2018-4343: Brandon Azad Entry added October 30, 2018 **IOHIDFamily** Available for: Apple TV 4K and Apple TV (4th generation) Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4408: Ian Beer of Google Project Zero Entry added October 30, 2018, updated August 1, 2019 **IOKit** Available for: Apple TV 4K and Apple TV (4th generation) Impact: A malicious application may be able to break out of its sandbox Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4341: Ian Beer of Google Project Zero CVE-2018-4354: Ian Beer of Google Project Zero Entry added October 30, 2018 **IOKit** 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 memory corruption issue was addressed with improved state management. CVE-2018-4383: Apple Entry added October 24, 2018 **IOUserEthernet** 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 memory corruption issue was addressed with improved memory handling. CVE-2018-4401: Apple Entry added October 30, 2018 **iTunes Store** Available for: Apple TV 4K and Apple TV (4th generation) Impact: An attacker in a privileged network position may be able to spoof password prompts in the iTunes Store Description: An input validation issue was addressed with improved input validation. CVE-2018-4305: Jerry Decime **Kernel** Available for: Apple TV 4K and Apple TV (4th generation) Impact: A malicious application may be able to leak sensitive user information Description: An access issue existed with privileged API calls. This issue was addressed with additional restrictions. CVE-2018-4399: Fabiano Anemone (@anoane) Entry added October 30, 2018 **Kernel** Available for: Apple TV 4K and Apple TV (4th generation) Impact: An attacker in a privileged network position may be able to execute arbitrary code Description: A memory corruption issue was addressed with improved validation. CVE-2018-4407: Kevin Backhouse of Semmle Ltd. Entry added October 30, 2018 **Kernel** Available for: Apple TV 4K and Apple TV (4th generation) Impact: An application may be able to read restricted memory Description: An input validation issue existed in the kernel. This issue was addressed with improved input validation. CVE-2018-4363: Ian Beer of Google Project Zero **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 memory corruption issue was addressed with improved memory handling. CVE-2018-4336: Brandon Azad CVE-2018-4337: Ian Beer of Google Project Zero CVE-2018-4340: Mohamed Ghannam (@_simo36) CVE-2018-4344: The UK's National Cyber Security Centre (NCSC) CVE-2018-4425: cc working with Trend Micro's Zero Day Initiative, Juwei Lin (@panicaII) of Trend Micro working with Trend Micro's Zero Day Initiative Entry added September 24, 2018, updated October 30, 2018 **Safari** Available for: Apple TV 4K and Apple TV (4th generation) Impact: A local user may be able to discover websites a user has visited Description: A consistency issue existed in the handling of application snapshots. The issue was addressed with improved handling of application snapshots. CVE-2018-4313: an anonymous researcher, an anonymous researcher, an anonymous researcher, an anonymous researcher, an anonymous researcher, an anonymous researcher, an anonymous researcher, an anonymous researcher, an anonymous researcher, an anonymous researcher, an anonymous researcher, David Scott, Enes Mert Ulu of Abdullah Mürşide Özünenek Anadolu Lisesi - Ankara/Türkiye, Mehmet Ferit Daştan of Van Yüzüncü Yıl University, Metin Altug Karakaya of Kaliptus Medical Organization, Vinodh Swami of Western Governor's University (WGU) **Security** Available for: Apple TV 4K and Apple TV (4th generation) Impact: An attacker may be able to exploit weaknesses in the RC4 cryptographic algorithm Description: This issue was addressed by removing RC4. CVE-2016-1777: Pepi Zawodsky **Security** Available for: Apple TV 4K and Apple TV (4th generation) Impact: A local user may be able to cause a denial of service Description: This issue was addressed with improved checks. CVE-2018-4395: Patrick Wardle of Digita Security Entry added October 30, 2018 **Symptom Framework** Available for: Apple TV 4K and Apple TV (4th generation) Impact: An application may be able to read restricted memory Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2018-4203: Bruno Keith (@bkth_) working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 **Text** 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 denial of service issue was addressed with improved validation. CVE-2018-4304: jianan.huang (@Sevck) Entry added October 30, 2018 **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-2018-4316: crixer, Hanming Zhang (@4shitak4) of Qihoo 360 Vulcan Team Entry added September 24, 2018 **WebKit** Available for: Apple TV 4K and Apple TV (4th generation) Impact: A malicious website may exfiltrate image data cross-origin Description: A cross-site scripting issue existed in Safari. This issue was addressed with improved URL validation. CVE-2018-4345: Jun Kokatsu (@shhnjk) Entry added September 24, 2018, updated December 18, 2018 **WebKit** Available for: Apple TV 4K and Apple TV (4th generation) Impact: Unexpected interaction causes an ASSERT failure Description: A memory corruption issue was addressed with improved validation. CVE-2018-4191: found by OSS-Fuzz Entry added September 24, 2018 **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-2018-4299: Samuel Groβ (saelo) working with Trend Micro's Zero Day Initiative CVE-2018-4359: Samuel Groß (@5aelo) CVE-2018-4323: Ivan Fratric of Google Project Zero CVE-2018-4358: @phoenhex team (@bkth_ @5aelo @_niklasb) working with Trend Micro's Zero Day Initiative CVE-2018-4328: Ivan Fratric of Google Project Zero Entry added September 24, 2018 **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 use after free issue was addressed with improved memory management. CVE-2018-4197: Ivan Fratric of Google Project Zero CVE-2018-4318: Ivan Fratric of Google Project Zero CVE-2018-4306: Ivan Fratric of Google Project Zero CVE-2018-4312: Ivan Fratric of Google Project Zero CVE-2018-4314: Ivan Fratric of Google Project Zero CVE-2018-4315: Ivan Fratric of Google Project Zero CVE-2018-4317: Ivan Fratric of Google Project Zero Entry added September 24, 2018 **WebKit** Available for: Apple TV 4K and Apple TV (4th generation) Impact: A malicious website may be able to execute scripts in the context of another website Description: A cross-site scripting issue existed in Safari. This issue was addressed with improved URL validation. CVE-2018-4309: an anonymous researcher working with Trend Micro's Zero Day Initiative Entry added September 24, 2018 **WebKit** Available for: Apple TV 4K and Apple TV (4th generation) Impact: Unexpected interaction causes an ASSERT failure Description: A memory consumption issue was addressed with improved memory handling. CVE-2018-4361: found by OSS-Fuzz CVE-2018-4474: found by OSS-Fuzz Entry added September 24, 2018, updated January 22, 2019 **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-2018-4299: Samuel Groβ (saelo) working with Trend Micro's Zero Day Initiative CVE-2018-4323: Ivan Fratric of Google Project Zero CVE-2018-4328: Ivan Fratric of Google Project Zero CVE-2018-4358: @phoenhex team (@bkth_ @5aelo @_niklasb) working with Trend Micro's Zero Day Initiative CVE-2018-4359: Samuel Groß (@5aelo) CVE-2018-4360: William Bowling (@wcbowling) Entry added October 24, 2018 ![](/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png) ## Additional recognition **Assets** We would like to acknowledge Brandon Azad for their assistance. **Core Data** We would like to acknowledge Andreas Kurtz (@aykay) of NESO Security Labs GmbH for their assistance. **Sandbox Profiles** We would like to acknowledge Tencent Keen Security Lab working with Trend Micro's Zero Day Initiative for their assistance. **SQLite** We would like to acknowledge Andreas Kurtz (@aykay) of NESO Security Labs GmbH for their assistance. **WebKit** We would like to acknowledge Cary Hartline, Hanming Zhang from 360 Vuclan team, and Zach Malone of CA Technologies for their assistance.


Affected Software


CPE Name Name Version
tvos 12

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