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APPLE-SA-2017-09-25-6
Additional information for APPLE-SA-2017-09-20-3 tvOS 11

tvOS 11 addresses the following:

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.
Entry added September 25, 2017

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
Entry added September 25, 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
Entry added September 25, 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
Entry added September 25, 2017

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
Entry added September 25, 2017

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
Entry added September 25, 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
Entry added September 25, 2017

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
Entry added September 25, 2017

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
Entry added September 25, 2017

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
Entry added September 25, 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 were addressed with
improved memory handling.
CVE-2017-7087: Apple
CVE-2017-7091: Wei Yuan of Baidu Security Lab working with Trend
Microas 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
Microas 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 Microas 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
Entry added September 25, 2017

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
Entry added September 25, 2017

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
Entry added September 25, 2017

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
Entry added September 25, 2017

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
Entry added September 25, 2017

Additional recognition

Security
We would like to acknowledge Abhinav Bansal of Zscaler, Inc.
for their assistance.

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/
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