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APPLE-SA-2016-09-20-3 iOS 10

The iOS 10 advisory has been updated to include additional entries as
noted below.

AppleMobileFileIntegrity
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: A local application may be able to execute arbitrary code
with system privileges
Description: A validation issue existed in the task port inheritance
policy. This issue was addressed through improved validation of the
process entitlement and Team ID.
CVE-2016-4698: Pedro VilaASSa
Entry added September 20, 2016

Assets
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: An attacker in a privileged network position may be able to
block a device from receiving software updates
Description: An issue existed in iOS updates, which did not properly
secure user communications. This issue was addressed by using HTTPS
for software updates.
CVE-2016-4741: Raul Siles of DinoSec

Audio
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

Certificate Trust Policy
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: Update to the certificate trust policy
Description: The certificate trust policy was updated. The complete
list of certificates may be viewed at
https://support.apple.com/kb/HT204132.
Entry added September 20, 2016

CFNetwork
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: A local user may be able to discover websites a user has
visited
Description: An issue existed in Local Storage deletion. This issue
was addressed through improved Local Storage cleanup.
CVE-2016-4707: an anonymous researcher
Entry added September 20, 2016

CFNetwork
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

CommonCrypto
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: An application using CCrypt may disclose sensitive plaintext
if the output and input buffer are the same
Description: An input validation issue existed in corecrypto. This
issue was addressed through improved input validation.
CVE-2016-4711: Max Lohrmann
Entry added September 20, 2016

CoreCrypto
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

FontParser
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

GeoServices
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: An application may be able to read sensitive location
information
Description: A permissions issue existed in PlaceData. This issue was
addressed through improved permission validation.
CVE-2016-4719: Razvan Deaconescu, Mihai Chiroiu (University
POLITEHNICA of Bucharest); Luke Deshotels, William Enck (North
Carolina State University); Lucas Vincenzo Davi, Ahmad-Reza Sadeghi
(TU Darmstadt)

IDS - Connectivity
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: An attacker in a privileged network position may be able to
cause a denial of service
Description: A spoofing issue existed in the handling of Call Relay.
This issue was addressed through improved input validation.
CVE-2016-4722: Martin Vigo (@martin_vigo) of salesforce.com
Entry added September 20, 2016

IOAcceleratorFamily
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: A null pointer dereference was addressed through
improved input validation.
CVE-2016-4724: Cererdlong, Eakerqiu of Team OverSky
Entry added September 20, 2016

IOAcceleratorFamily
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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.
Entry added September 20, 2016

IOAcceleratorFamily
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

Kernel
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: A local application may be able to access restricted files
Description: A parsing issue in the handling of directory paths was
addressed through improved path validation.
CVE-2016-4771: Balazs Bucsay, Research Director of MRG Effitas
Entry added September 20, 2016

Kernel
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

Kernel
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

Kernel
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

Kernel
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

Keyboards
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: Keyboard auto correct suggestions may reveal sensitive
information
Description: The iOS keyboard was inadvertently caching sensitive
information. This issue was addressed through improved heuristics.
CVE-2016-4746: Antoine M of France

libxml2
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

libxslt
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

Mail
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: An attacker with a privileged network position may be able to
intercept mail credentials
Description: An issue existed when handling untrusted certificates.
This was addressed by terminating untrusted connections.
CVE-2016-4747: Dave Aitel

Messages
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: Messages may be visible on a device that has not signed in to
Messages
Description: An issue existed when using Handoff for Messages. This
issue was resolved via better state management.
CVE-2016-4740: Step Wallace

Printing UIKit
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: An unencrypted document may be written to a temporary file
when using AirPrint preview
Description: An issue existed in AirPrint preview. This was addressed
through improved environment sanitization.
CVE-2016-4749: an anonymous researcher

S2 Camera
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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-2016-4750: Jack Tang (@jacktang310) and Moony Li of Trend Micro
working with Trend Microas Zero Day Initiative
Entry added September 20, 2016

Safari Reader
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: Enabling the Safari Reader feature on a maliciously crafted
webpage may lead to universal cross site scripting
Description: Multiple validation issues were addressed through
improved input sanitization.
CVE-2016-4618: an anonymous researcher
Entry added September 20, 2016

Sandbox Profiles
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: A malicious application may be able to determine whom a user
is texting
Description: An access control issue existed in SMS draft
directories. This issue was addressed by preventing apps from
stat'ing the affected directories.
CVE-2016-4620: Razvan Deaconescu, Mihai Chiroiu (University
POLITEHNICA of Bucharest); Luke Deshotels, William Enck (North
Carolina State University); Lucas Vincenzo Davi, Ahmad-Reza Sadeghi
(TU Darmstadt)

Security
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: A malicious application may be able to execute arbitrary code
with system privileges
Description: A validation issue existed in signed disk images. This
issue was addressed through improved size validation.
CVE-2016-4753: Mark Mentovai of Google Inc.
Entry added September 20, 2016

WebKit
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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
Entry added September 20, 2016

WebKit
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: Visiting a maliciously crafted website may leak sensitive
data
Description: A permissions issue existed in the handling of the
location variable. This was addressed though additional ownership
checks.
CVE-2016-4758: Masato Kinugawa of Cure53
Entry added September 20, 2016

WebKit
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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-2016-4729: Apple
CVE-2016-4730: Apple
CVE-2016-4731: Apple
CVE-2016-4734: Natalie Silvanovich of Google Project Zero
CVE-2016-4735: AndrA(c) Bargull
CVE-2016-4737: Apple
CVE-2016-4759: Tongbo Luo of Palo Alto Networks
CVE-2016-4762: Zheng Huang of Baidu Security Lab
CVE-2016-4766: Apple
CVE-2016-4767: Apple
CVE-2016-4768: Anonymous working with Trend Micro's Zero Day
Initiative
Entry added September 20, 2016

WebKit
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: A malicious website may be able to access non-HTTP services
Description: Safari's support of HTTP/0.9 allowed cross-protocol
exploitation of non-HTTP services using DNS rebinding. The issue was
addressed by restricting HTTP/0.9 responses to default ports and
canceling resource loads if the document was loaded with a different
HTTP protocol version.
CVE-2016-4760: Jordan Milne
Entry added September 20, 2016

WebKit
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
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: Natalie Silvanovich of Google Project Zero
CVE-2016-4765: Apple
Entry added September 20, 2016

WebKit
Available for: iPhone 5 and later, iPad 4th generation and later,
iPod touch 6th generation and later
Impact: An attacker in a privileged network position may be able to
intercept and alter network traffic to applications using WKWebView
with HTTPS
Description: A certificate validation issue existed in the handling
of WKWebView. This issue was addressed through improved validation.
CVE-2016-4763: an anonymous researcher
Entry added September 20, 2016

Installation note:

This update is available through iTunes and Software Update on your
iOS device, and will not appear in your computer's Software Update
application, or in the Apple Downloads site. Make sure you have an
Internet connection and have installed the latest version of iTunes
from www.apple.com/itunes/

iTunes and Software Update on the device will automatically check
Apple's update server on its weekly schedule. When an update is
detected, it is downloaded and the option to be installed is
presented to the user when the iOS device is docked. We recommend
applying the update immediately if possible. Selecting Don't Install
will present the option the next time you connect your iOS device.

The automatic update process may take up to a week depending on the
day that iTunes or the device checks for updates. You may manually
obtain the update via the Check for Updates button within iTunes, or
the Software Update on your device.

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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