About the security content of tvOS 10.2.1

This document describes the security content of tvOS 10.2.1.

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tvOS 10.2.1

Released May 15, 2017

AVEVideoEncoder

Available for: Apple TV (4th generation)

Impact: An application may be able to gain kernel privileges

Description: Multiple memory corruption issues were addressed with improved memory handling.

CVE-2017-6989: Adam Donenfeld (@doadam) of the Zimperium zLabs Team

CVE-2017-6994: Adam Donenfeld (@doadam) of the Zimperium zLabs Team

CVE-2017-6995: Adam Donenfeld (@doadam) of the Zimperium zLabs Team

CVE-2017-6996: Adam Donenfeld (@doadam) of the Zimperium zLabs Team

CVE-2017-6997: Adam Donenfeld (@doadam) of the Zimperium zLabs Team

CVE-2017-6998: Adam Donenfeld (@doadam) of the Zimperium zLabs Team

CVE-2017-6999: Adam Donenfeld (@doadam) of the Zimperium zLabs Team

Entry updated May 17, 2017

CoreAudio

Available for: Apple TV (4th generation)

Impact: An application may be able to read restricted memory

Description: A validation issue was addressed with improved input sanitization.

CVE-2017-2502: Yangkang (@dnpushme) of Qihoo360 Qex Team

CoreFoundation

Available for: Apple TV (4th generation)

Impact: Parsing maliciously crafted data may lead to arbitrary code execution

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2017-2522: Ian Beer of Google Project Zero

Entry added May 19, 2017

CoreText

Available for: Apple TV (4th generation)

Impact: Processing a maliciously crafted file may lead to application termination

Description: A denial of service issue was addressed through improved validation.

CVE-2017-7003: Jake Davis of SPYSCAPE (@DoubleJake), João Henrique Neves and Stephen Goldberg of Salesforce

Entry updated June 7, 2017

Foundation

Available for: Apple TV (4th generation)

Impact: Parsing maliciously crafted data may lead to arbitrary code execution

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2017-2523: Ian Beer of Google Project Zero

Entry added May 19, 2017

IOSurface

Available for: Apple TV (4th generation)

Impact: An application may be able to gain kernel privileges

Description: A race condition was addressed through improved locking.

CVE-2017-6979: Adam Donenfeld (@doadam) of the Zimperium zLabs Team

Entry updated May 17, 2017

JavaScriptCore

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may lead to unexpected application termination or arbitrary code execution

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-2017-7005: lokihardt of Google Project Zero

Entry added June 9, 2017

Kernel

Available for: Apple TV (4th generation)

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A race condition was addressed through improved locking.

CVE-2017-2501: Ian Beer of Google Project Zero

Kernel

Available for: Apple TV (4th generation)

Impact: An application may be able to read restricted memory

Description: A validation issue was addressed with improved input sanitization.

CVE-2017-2507: Ian Beer of Google Project Zero

CVE-2017-6987: Patrick Wardle of Synack

SQLite

Available for: Apple TV (4th generation)

Impact: A maliciously crafted SQL query may lead to arbitrary code execution

Description: A use after free issue was addressed through improved memory management.

CVE-2017-2513: found by OSS-Fuzz

SQLite

Available for: Apple TV (4th generation)

Impact: A maliciously crafted SQL query may lead to arbitrary code execution

Description: A buffer overflow issue was addressed through improved memory handling.

CVE-2017-2518: found by OSS-Fuzz

CVE-2017-2520: found by OSS-Fuzz

SQLite

Available for: Apple TV (4th generation)

Impact: A maliciously crafted SQL query may lead to arbitrary code execution

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2017-2519: found by OSS-Fuzz

TextInput

Available for: Apple TV (4th generation)

Impact: Parsing maliciously crafted data may lead to arbitrary code execution

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2017-2524: Ian Beer of Google Project Zero

WebKit

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may lead to universal cross site scripting

Description: A logic issue existed in the handling of WebKit Editor commands. This issue was addressed with improved state management.

CVE-2017-2504: lokihardt of Google Project Zero

WebKit

Available for: 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-2017-2505: lokihardt of Google Project Zero

CVE-2017-2515: lokihardt of Google Project Zero

CVE-2017-2521: lokihardt of Google Project Zero

CVE-2017-2525: Kai Kang (4B5F5F4B) of Tencent’s Xuanwu Lab (tencent.com) working with Trend Micro’s Zero Day Initiative

CVE-2017-2530: Wei Yuan of Baidu Security Lab, Zheng Huang of the Baidu Security Lab working with Trend Micro’s Zero Day Initiative

CVE-2017-2531: lokihardt of Google Project Zero

CVE-2017-6980: lokihardt of Google Project Zero

CVE-2017-6984: lokihardt of Google Project Zero

Entry updated June 20, 2017

WebKit

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: Multiple memory corruption issues with addressed through improved memory handling.

CVE-2017-2536: Samuel Groß and Niklas Baumstark working with Trend Micro's Zero Day Initiative

WebKit

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may lead to universal cross site scripting

Description: A logic issue existed in frame loading. This issue was addressed with improved state management.

CVE-2017-2549: lokihardt of Google Project Zero

WebKit Web Inspector

Available for: Apple TV (4th generation)

Impact: An application may be able to execute unsigned code

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2017-2499: George Dan (@theninjaprawn)

Additional recognition

Kernel

We would like to acknowledge Orr A. of Aleph Research, HCL Technologies for their assistance.

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