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APPLE-SA-2020-07-15-1 iOS 13.6 and iPadOS 13.6

iOS 13.6 and iPadOS 13.6 are now available and address the following:

Audio
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Processing a maliciously crafted audio file may lead to
arbitrary code execution
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2020-9888: JunDong Xie and XingWei Li of Ant-financial Light-Year
Security Lab
CVE-2020-9890: JunDong Xie and XingWei Li of Ant-financial Light-Year
Security Lab
CVE-2020-9891: JunDong Xie and XingWei Li of Ant-financial Light-Year
Security Lab

Audio
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Processing a maliciously crafted audio file may lead to
arbitrary code execution
Description: An out-of-bounds write issue was addressed with improved
bounds checking.
CVE-2020-9889: JunDong Xie and XingWei Li of Ant-financial Light-Year
Security Lab

AVEVideoEncoder
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: A memory corruption issue was addressed by removing the
vulnerable code.
CVE-2020-9907: an anonymous researcher

Bluetooth
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A remote attacker may cause an unexpected application
termination
Description: A denial of service issue was addressed with improved
input validation.
CVE-2020-9931: Dennis Heinze (@ttdennis) of TU Darmstadt, Secure
Mobile Networking Lab

CoreFoundation
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A local user may be able to view sensitive user information
Description: An issue existed in the handling of environment
variables. This issue was addressed with improved validation.
CVE-2020-9934: an anonymous researcher

Crash Reporter
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A malicious application may be able to break out of its
sandbox
Description: A memory corruption issue was addressed by removing the
vulnerable code.
CVE-2020-9865: Zhuo Liang of Qihoo 360 Vulcan Team working with 360
BugCloud

GeoServices
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A malicious application may be able to read sensitive
location information
Description: An authorization issue was addressed with improved state
management.
CVE-2020-9933: Min (Spark) Zheng and Xiaolong Bai of Alibaba Inc.

iAP
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: An attacker in a privileged network position may be able to
execute arbitrary code
Description: An input validation issue existed in Bluetooth. This
issue was addressed with improved input validation.
CVE-2020-9914: Andy Davis of NCC Group

ImageIO
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Processing a maliciously crafted image may lead to arbitrary
code execution
Description: An out-of-bounds write issue was addressed with improved
bounds checking.
CVE-2020-9936: Mickey Jin of Trend Micro

Kernel
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A malicious application may be able to execute arbitrary code
with system privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2020-9923: Proteas

Kernel
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: An attacker in a privileged network position may be able to
inject into active connections within a VPN tunnel
Description: A routing issue was addressed with improved
restrictions.
CVE-2019-14899: William J. Tolley, Beau Kujath, and Jedidiah R.
Crandall

Kernel
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: An attacker that has already achieved kernel code execution
may be able to bypass kernel memory mitigations
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2020-9909: Brandon Azad of Google Project Zero

Mail
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A remote  attacker can cause a limited out-of-bounds write,
resulting in a denial of service
Description: An input validation issue was addressed.
CVE-2019-19906

Messages
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A user that is removed from an iMessage group could rejoin
the group
Description: An issue existed in the handling of iMessage tapbacks.
The issue was resolved with additional verification.
CVE-2020-9885: an anonymous researcher, Suryansh Mansharamani, of WWP
High School North (medium.com/@suryanshmansha)

Model I/O
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Processing a maliciously crafted USD file may lead to
unexpected application termination or arbitrary code execution
Description: A buffer overflow issue was addressed with improved
memory handling.
CVE-2020-9878: Holger Fuhrmannek of Deutsche Telekom Security

Safari Login AutoFill
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A malicious attacker may cause Safari to suggest a password
for the wrong domain
Description: A logic issue was addressed with improved restrictions.
CVE-2020-9903: Nikhil Mittal (@c0d3G33k) of Payatu Labs (payatu.com)

Safari Reader
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: An issue in Safari Reader mode may allow a remote attacker to
bypass the Same Origin Policy
Description: A logic issue was addressed with improved restrictions.
CVE-2020-9911: Nikhil Mittal (@c0d3G33k) of Payatu Labs (payatu.com)

WebKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A remote attacker may be able to cause unexpected application
termination or arbitrary code execution
Description: An out-of-bounds read was addressed with improved input
validation.
CVE-2020-9894: 0011 working with Trend Micro Zero Day Initiative

WebKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Processing maliciously crafted web content may prevent
Content Security Policy from being enforced
Description: An access issue existed in Content Security Policy.
This issue was addressed with improved access restrictions.
CVE-2020-9915: an anonymous researcher

WebKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A remote attacker may be able to cause unexpected application
termination or arbitrary code execution
Description: A use after free issue was addressed with improved
memory management.
CVE-2020-9893: 0011 working with Trend Micro Zero Day Initiative
CVE-2020-9895: Wen Xu of SSLab, Georgia Tech

WebKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Processing maliciously crafted web content may lead to
universal cross site scripting
Description: A logic issue was addressed with improved state
management.
CVE-2020-9925: an anonymous researcher

WebKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A malicious attacker with arbitrary read and write capability
may be able to bypass Pointer Authentication
Description: Multiple issues were addressed with improved logic.
CVE-2020-9910: Samuel Groß of Google Project Zero

WebKit Page Loading
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A malicious attacker may be able to conceal the destination
of a URL
Description: A URL Unicode encoding issue was addressed with improved
state management.
CVE-2020-9916: Rakesh Mane (@RakeshMane10)

WebKit Web Inspector
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Copying a URL from Web Inspector may lead to command
injection
Description: A command injection issue existed in Web Inspector. This
issue was addressed with improved escaping.
CVE-2020-9862: Ophir Lojkine (@lovasoa)

Wi-Fi
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A remote attacker may be able to cause unexpected system
termination or corrupt kernel memory
Description: An out-of-bounds read was addressed with improved input
validation.
CVE-2020-9918: Jianjun Dai of 360 Alpha Lab working with 360 BugCloud
(bugcloud.360.cn)

WiFi
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A remote attacker may be able to cause a denial of service
Description: This issue was addressed with improved checks.
CVE-2020-9917: an anonymous researcher, Pradeep Deokate of Harman

Additional recognition

Bluetooth
We would like to acknowledge Andy Davis of NCC Group for their
assistance.

Kernel
We would like to acknowledge Brandon Azad of Google Project Zero for
their assistance.

USB Audio
We would like to acknowledge Andy Davis of NCC Group for their
assistance.

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 https://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.

To check that the iPhone, iPod touch, or iPad has been updated:

* Navigate to Settings
* Select General
* Select About. The version after applying this update
will be "iOS 13.6 and iPadOS 13.6".
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