About the security content of tvOS 10

This document describes the security content of tvOS 10.

About Apple security updates

For our customers' protection, Apple doesn't disclose, discuss or confirm security issues until an investigation has taken place and patches or releases are available. Recent releases are listed on the Apple security updates page.

For more information about security, see the Apple Product Security page. You can encrypt communications with Apple using the Apple Product Security PGP Key.

Apple security documents reference vulnerabilities by CVE-ID when possible.

tvOS 10

Audio

Available for: Apple TV (4th generation)

Impact: A remote attacker may be able to execute arbitrary code

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

CVE-2016-4702: YoungJin Yoon, MinSik Shin, HoJae Han, Sunghyun Park and Taekyoung Kwon of Information Security Lab, Yonsei University

CFNetwork

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may compromise user information

Description: An input validation issue existed in the parsing of the set-cookie header. This issue was addressed through improved validation checking.

CVE-2016-4708: Dawid Czagan of Silesia Security Lab

CoreCrypto

Available for: Apple TV (4th generation)

Impact: An application may be able to execute arbitrary code

Description: An out-of-bounds write issue was addressed by removing the vulnerable code.

CVE-2016-4712: Gergo Koteles

FontParser

Available for: Apple TV (4th generation)

Impact: Processing a maliciously crafted font may result in the disclosure of process memory

Description: A buffer overflow existed in the handling of font files. This issue was addressed through improved bounds checking.

CVE-2016-4718: Apple

IOAcceleratorFamily

Available for: Apple TV (4th generation)

Impact: Processing maliciously crafted web content may result in the disclosure of process memory

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-4725: Rodger Combs of Plex, Inc.

IOAcceleratorFamily

Available for: Apple TV (4th generation)

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

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

CVE-2016-4726: an anonymous researcher

Kernel

Available for: Apple TV (4th generation)

Impact: a remote attacker may be able to cause a denial of service

Description: A lock handling issue was addressed through improved lock handling.

CVE-2016-4772: Marc Heuse of mh-sec

Kernel

Available for: Apple TV (4th generation)

Impact: An application may be able to determine kernel memory layout

Description: Multiple out-of-bounds read issues existed that led to the disclosure of kernel memory. These were addressed through improved input validation.

CVE-2016-4773: Brandon Azad

CVE-2016-4774: Brandon Azad

CVE-2016-4776: Brandon Azad

Kernel

Available for: Apple TV (4th generation)

Impact: A local user may be able to execute arbitrary code with kernel privileges

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

CVE-2016-4775: Brandon Azad

Kernel

Available for: Apple TV (4th generation)

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

Description: An untrusted pointer dereference was addressed by removing the affected code.

CVE-2016-4777: Lufeng Li of Qihoo 360 Vulcan Team

Kernel

Available for: Apple TV (4th generation)

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

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

CVE-2016-4778: CESG

libxml2

Available for: Apple TV (4th generation)

Impact: Multiple issues in libxml2, the most significant of which may lead to unexpected application termination or arbitrary code execution

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

CVE-2016-4658: Nick Wellnhofer

CVE-2016-5131: Nick Wellnhofer

libxslt

Available for: Apple TV (4th generation)

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

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

CVE-2016-4738: Nick Wellnhofer

Security

Available for: Apple TV (4th generation)

Impact: A malicious application may be able to execute arbitrary code with system privileges

Description: A validation issue existed in signed disc images. This issue was addressed through improved size validation.

CVE-2016-4753: Mark Mentovai of Google Inc.

WebKit

Available for: Apple TV (4th generation)

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

Description: A parsing issue existed in the handling of error prototypes. This was addressed through improved validation.

CVE-2016-4728: Daniel Divricean

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 through improved memory handling.

CVE-2016-4611: Apple

CVE-2016-4730: Apple

CVE-2016-4734: natashenka of Google Project Zero

CVE-2016-4735: André Bargull

CVE-2016-4737: Apple

CVE-2016-4759: Tongbo Luo of Palo Alto Networks

CVE-2016-4766: Apple

CVE-2016-4767: Apple

CVE-2016-4768: Anonymous working with Trend Micro's Zero Day Initiative

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 through improved state management.

CVE-2016-4733: natashenka of Google Project Zero

CVE-2016-4765: Apple

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 through improved state management.

CVE-2016-4764: Apple