About the security content of tvOS 11.3

This document describes the security content of tvOS 11.3.

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

tvOS 11.3

Released March 29, 2018

CoreFoundation

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: An application may be able to gain elevated privileges

Description: A race condition was addressed with additional validation.

CVE-2018-4155: Samuel Groß (@5aelo)

CoreText

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: Processing a maliciously crafted string may lead to a denial of service

Description: A denial of service issue was addressed with improved memory handling.

CVE-2018-4142: Robin Leroy of Google Switzerland GmbH

Entry updated November 16, 2018

File System Events

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: An application may be able to gain elevated privileges

Description: A race condition was addressed with additional validation.

CVE-2018-4167: Samuel Groß (@5aelo)

Kernel

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

CVE-2018-4150: an anonymous researcher

Kernel

Available for: Apple TV 4K and 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-2018-4104: The UK's National Cyber Security Centre (NCSC)

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-2018-4143: derrek (@derrekr6)

Kernel

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: A malicious application may be able to determine kernel memory layout

Description: An information disclosure issue existed in the transition of program state. This issue was addressed with improved state handling.

CVE-2018-4185: Brandon Azad

Entry added July 19, 2018

libxml2

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 use after free issue was addressed with improved memory management.

CVE-2017-15412: Nick Wellnhofer

Entry added October 18, 2018

NSURLSession

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: An application may be able to gain elevated privileges

Description: A race condition was addressed with additional validation.

CVE-2018-4166: Samuel Groß (@5aelo)

Quick Look

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: An application may be able to gain elevated privileges

Description: A race condition was addressed with additional validation.

CVE-2018-4157: Samuel Groß (@5aelo)

Security

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: A malicious application may be able to elevate privileges

Description: A buffer overflow was addressed with improved size validation.

CVE-2018-4144: Abraham Masri (@cheesecakeufo)

System Preferences

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: A configuration profile may incorrectly remain in effect after removal

Description: An issue existed in CFPreferences. This issue was addressed with improved preferences cleanup.

CVE-2018-4115: Johann Thalakada, Vladimir Zubkov, and Matt Vlasach of Wandera

Entry updated November 16, 2018

WebKit

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: Unexpected interaction with indexing types causing an ASSERT failure

Description: An array indexing issue existed in the handling of a function in javascript core. This issue was addressed through improved checks.

CVE-2018-4113: found by OSS-Fuzz

WebKit

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: Processing maliciously crafted web content may lead to a denial of service

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

CVE-2018-4146: 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: Multiple memory corruption issues were addressed with improved memory handling.

CVE-2018-4101: Yuan Deng of Ant-financial Light-Year Security Lab

CVE-2018-4114: found by OSS-Fuzz

CVE-2018-4118: Jun Kokatsu (@shhnjk)

CVE-2018-4119: an anonymous researcher working with Trend Micro's Zero Day Initiative

CVE-2018-4120: Hanming Zhang (@4shitak4) of Qihoo 360 Vulcan Team

CVE-2018-4121: natashenka of Google Project Zero

CVE-2018-4122: WanderingGlitch of Trend Micro’s Zero Day Initiative

CVE-2018-4125: WanderingGlitch of Trend Micro's Zero Day Initiative

CVE-2018-4127: an anonymous researcher working with Trend Micro's Zero Day Initiative

CVE-2018-4128: Zach Markley

CVE-2018-4129: likemeng of Baidu Security Lab working with Trend Micro's Zero Day Initiative

CVE-2018-4130: Omair working with Trend Micro's Zero Day Initiative

CVE-2018-4161: WanderingGlitch of Trend Micro's Zero Day Initiative

CVE-2018-4162: WanderingGlitch of Trend Micro's Zero Day Initiative

CVE-2018-4163: WanderingGlitch of Trend Micro's Zero Day Initiative

CVE-2018-4165: Hanming Zhang (@4shitak4) of Qihoo 360 Vulcan Team

WebKit

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: Unexpected interaction causes an ASSERT failure

Description: This issue was addressed with improved checks.

CVE-2018-4207: found by OSS-Fuzz

Entry added May 2, 2018

WebKit

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: Unexpected interaction causes an ASSERT failure

Description: This issue was addressed with improved checks.

CVE-2018-4208: found by OSS-Fuzz

Entry added May 2, 2018

WebKit

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: Unexpected interaction causes an ASSERT failure

Description: This issue was addressed with improved checks.

CVE-2018-4209: found by OSS-Fuzz

Entry added May 2, 2018

WebKit

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: Unexpected interaction with indexing types caused a failure

Description: An array indexing issue existed in the handling of a function in javascript core. This issue was addressed with improved checks.

CVE-2018-4210: found by OSS-Fuzz

Entry added May 2, 2018

WebKit

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: Unexpected interaction causes an ASSERT failure

Description: This issue was addressed with improved checks.

CVE-2018-4212: found by OSS-Fuzz

Entry added May 2, 2018

WebKit

Available for: Apple TV 4K and Apple TV (4th generation)

Impact: Unexpected interaction causes an ASSERT failure

Description: This issue was addressed with improved checks.

CVE-2018-4213: found by OSS-Fuzz

Entry added May 2, 2018

WebKit

Available for: Apple TV 4K and Apple TV (4th generation)

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

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

CVE-2018-4145: found by OSS-Fuzz

Entry added October 18, 2018

Additional recognition

Security

We would like to acknowledge Abraham Masri (@cheesecakeufo) for their assistance.

Entry added April 13, 2018

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