-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

APPLE-SA-2017-10-31-11
Additional information for APPLE-SA-2017-09-20-3 tvOS 11

tvOS 11 addresses the following:

802.1X
Available for: Apple TV (4th generation)
Impact: An attacker may be able to exploit weaknesses in TLS 1.0
Description: A protocol security issue was addressed by enabling TLS
1.1 and TLS 1.2.
CVE-2017-13832: an anonymous researcher
Entry added October 31, 2017

CFNetwork Proxies
Available for:  Apple TV (4th generation)
Impact: An attacker in a privileged network position may be able to
cause a denial of service
Description: Multiple denial of service issues were addressed through
improved memory handling.
CVE-2017-7083: Abhinav Bansal of Zscaler Inc.

CoreAudio
Available for:  Apple TV (4th generation)
Impact: An application may be able to read restricted memory
Description: An out-of-bounds read was addressed by updating to Opus
version 1.1.4.
CVE-2017-0381: V.E.O (@VYSEa) of Mobile Threat Research Team, Trend
Micro

CoreText
Available for: Apple TV (4th generation)
Impact: Processing a maliciously crafted font file may lead to
arbitrary code execution
Description: A memory consumption issue was addressed through
improved memory handling.
CVE-2017-13825: Australian Cyber Security Centre a Australian Signals
Directorate
Entry added October 31, 2017

file
Available for: Apple TV (4th generation)
Impact: Multiple issues in file
Description: Multiple issues were addressed by updating to version
5.31.
CVE-2017-13815
Entry added October 31, 2017

Fonts
Available for: Apple TV (4th generation)
Impact: Rendering untrusted text may lead to spoofing
Description: An inconsistent user interface issue was addressed with
improved state management.
CVE-2017-13828: an anonymous researcher
Entry added October 31, 2017

HFS
Available for: 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-2017-13830: Sergej Schumilo of Ruhr-University Bochum
Entry added October 31, 2017

ImageIO
Available for: Apple TV (4th generation)
Impact: Processing a maliciously crafted image may lead to arbitrary
code execution
Description: A memory corruption issue was addressed through improved
input validation.
CVE-2017-13814: Australian Cyber Security Centre a Australian Signals
Directorate
Entry added October 31, 2017

ImageIO
Available for: Apple TV (4th generation)
Impact: Processing a maliciously crafted image may lead to a denial
of service
Description: An information disclosure issue existed in the
processing of disk images. This issue was addressed through improved
memory management.
CVE-2017-13831: an anonymous researcher
Entry added October 31, 2017

Kernel
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 with improved
memory handling.
CVE-2017-7114: Alex Plaskett of MWR InfoSecurity

Kernel
Available for: Apple TV (4th generation)
Impact: A local user may be able to read kernel memory
Description: An out-of-bounds read issue existed that led to the
disclosure of kernel memory. This was addressed through improved
input validation.
CVE-2017-13817: Maxime Villard (m00nbsd)
Entry added October 31, 2017

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-2017-13818: The UK's National Cyber Security Centre (NCSC)
CVE-2017-13836: an anonymous researcher, an anonymous researcher
CVE-2017-13841: an anonymous researcher
CVE-2017-13840: an anonymous researcher
CVE-2017-13842: an anonymous researcher
CVE-2017-13782: Kevin Backhouse of Semmle Ltd.
Entry added October 31, 2017

Kernel
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 with improved
memory handling.
CVE-2017-13843: an anonymous researcher
Entry added October 31, 2017

Kernel
Available for: Apple TV (4th generation)
Impact: Processing a malformed mach binary may lead to arbitrary code
execution
Description: A memory corruption issue was addressed through improved
validation.
CVE-2017-13834: Maxime Villard (m00nbsd)
Entry added October 31, 2017

libarchive
Available for: Apple TV (4th generation)
Impact: Unpacking a maliciously crafted archive may lead to arbitrary
code execution
Description: A buffer overflow issue was addressed through improved
memory handling.
CVE-2017-13813: found by OSS-Fuzz
CVE-2017-13816: found by OSS-Fuzz
Entry added October 31, 2017

libarchive
Available for: Apple TV (4th generation)
Impact: Unpacking a maliciously crafted archive may lead to arbitrary
code execution
Description: Multiple memory corruption issues existed in libarchive.
These issues were addressed through improved input validation.
CVE-2017-13812: found by OSS-Fuzz
Entry added October 31, 2017

libc
Available for:  Apple TV (4th generation)
Impact: A remote attacker may be able to cause a denial-of-service
Description: A resource exhaustion issue in glob() was addressed
through an improved algorithm.
CVE-2017-7086: Russ Cox of Google

libc
Available for:  Apple TV (4th generation)
Impact: An application may be able to cause a denial of service
Description: A memory consumption issue was addressed through
improved memory handling.
CVE-2017-1000373

libexpat
Available for:  Apple TV (4th generation)
Impact: Multiple issues in expat
Description: Multiple issues were addressed by updating to version
2.2.1
CVE-2016-9063
CVE-2017-9233

Quick Look
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-2017-13822: Australian Cyber Security Centre a Australian Signals
Directorate
Entry added October 31, 2017

Security
Available for:  Apple TV (4th generation)
Impact: A revoked certificate may be trusted
Description: A certificate validation issue existed in the handling
of revocation data. This issue was addressed through improved
validation.
CVE-2017-7080: an anonymous researcher, an anonymous researcher, Sven
Driemecker of adesso mobile solutions gmbh, Rune Darrud
(@theflyingcorpse) of BA|rum kommune

SQLite
Available for:  Apple TV (4th generation)
Impact: Multiple issues in SQLite
Description: Multiple issues were addressed by updating to version
3.19.3.
CVE-2017-10989: found by OSS-Fuzz
CVE-2017-7128: found by OSS-Fuzz
CVE-2017-7129: found by OSS-Fuzz
CVE-2017-7130: found by OSS-Fuzz

SQLite
Available for:  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-2017-7127: an anonymous researcher

WebKit
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
input validation.
CVE-2017-7081: 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 with
improved memory handling.
CVE-2017-7087: Apple
CVE-2017-7091: Wei Yuan of Baidu Security Lab working with Trend
Micro's Zero Day Initiative
CVE-2017-7092: Qixun Zhao (@S0rryMybad) of Qihoo 360 Vulcan Team,
Samuel Gro and Niklas Baumstark working with Trend Micro's Zero Day
Initiative
CVE-2017-7093: Samuel Gro and Niklas Baumstark working with Trend
Micro's Zero Day Initiative
CVE-2017-7094: Tim Michaud (@TimGMichaud) of Leviathan Security Group
CVE-2017-7095: Wang Junjie, Wei Lei, and Liu Yang of Nanyang
Technological University working with Trend Micro's Zero Day
Initiative
CVE-2017-7096: Wei Yuan of Baidu Security Lab
CVE-2017-7098: Felipe Freitas of Instituto TecnolA3gico de AeronA!utica
CVE-2017-7099: Apple
CVE-2017-7100: Masato Kinugawa and Mario Heiderich of Cure53
CVE-2017-7102: Wang Junjie, Wei Lei, and Liu Yang of Nanyang
Technological University
CVE-2017-7104: likemeng of Baidu Secutity Lab
CVE-2017-7107: Wang Junjie, Wei Lei, and Liu Yang of Nanyang
Technological University
CVE-2017-7111: likemeng of Baidu Security Lab (xlab.baidu.com)
working with Trend Micro's Zero Day Initiative
CVE-2017-7117: lokihardt of Google Project Zero
CVE-2017-7120: chenqin (ee|) of Ant-financial Light-Year Security
Lab

WebKit
Available for:  Apple TV (4th generation)
Impact: Cookies belonging to one origin may be sent to another origin
Description: A permissions issue existed in the handling of web
browser cookies. This issue was addressed by no longer returning
cookies for custom URL schemes.
CVE-2017-7090: Apple

WebKit
Available for:  Apple TV (4th generation)
Impact: Processing maliciously crafted web content may lead to a
cross site scripting attack
Description: Application Cache policy may be unexpectedly applied.
CVE-2017-7109: avlidienbrunn

Wi-Fi
Available for:  Apple TV (4th generation)
Impact: An attacker within range may be able to execute arbitrary
code on the Wi-Fi chip
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2017-11120: Gal Beniamini of Google Project Zero
CVE-2017-11121: Gal Beniamini of Google Project Zero

Wi-Fi
Available for:  Apple TV (4th generation)
Impact: Malicious code executing on the Wi-Fi chip may be able to
execute arbitrary code with kernel privileges on the application
processor
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2017-7103: Gal Beniamini of Google Project Zero
CVE-2017-7105: Gal Beniamini of Google Project Zero
CVE-2017-7108: Gal Beniamini of Google Project Zero
CVE-2017-7110: Gal Beniamini of Google Project Zero
CVE-2017-7112: Gal Beniamini of Google Project Zero

Wi-Fi
Available for:  Apple TV (4th generation)
Impact: Malicious code executing on the Wi-Fi chip may be able to
execute arbitrary code with kernel privileges on the application
processor
Description: Multiple race conditions were addressed through improved
validation.
CVE-2017-7115: Gal Beniamini of Google Project Zero

Wi-Fi
Available for:  Apple TV (4th generation)
Impact: Malicious code executing on the Wi-Fi chip may be able to
read restricted kernel memory
Description: A validation issue was addressed with improved input
sanitization.
CVE-2017-7116: Gal Beniamini of Google Project Zero

zlib
Available for:  Apple TV (4th generation)
Impact: Multiple issues in zlib
Description: Multiple issues were addressed by updating to version
1.2.11.
CVE-2016-9840
CVE-2016-9841
CVE-2016-9842
CVE-2016-9843

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-----
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=9X9S
-----END PGP SIGNATURE-----