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APPLE-SA-2019-10-29-11 Additional information
for APPLE-SA-2019-9-26-8 iOS 13.1 and iPadOS 13.1

iOS 13.1 and iPadOS 13.1 address the following:

AppleFirmwareUpdateKext
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 vulnerability was addressed with
improved locking.
CVE-2019-8747: Mohamed Ghannam (@_simo36)
Entry added October 29, 2019

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: A memory corruption issue was addressed with improved
state management.
CVE-2019-8706: Yu Zhou of Ant-financial Light-Year Security Lab
Entry added October 29, 2019

Books
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Parsing a maliciously crafted iBooks file may lead to a
persistent denial-of-service
Description: A resource exhaustion issue was addressed with improved
input validation.
CVE-2019-8774: Gertjan Franken imec-DistriNet of KU Leuven
Entry added October 29, 2019

Kernel
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 vulnerability was addressed with
improved locking.
CVE-2019-8740: Mohamed Ghannam (@_simo36)
Entry added October 29, 2019

Kernel
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A local app may be able to read a persistent account
identifier
Description: A validation issue was addressed with improved logic.
CVE-2019-8809: Apple
Entry added October 29, 2019

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 determine kernel
memory layout
Description: The issue was addressed with improved permissions logic.
CVE-2019-8780: Siguza

libxslt
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Multiple issues in libxslt
Description: Multiple memory corruption issues were addressed with
improved input validation.
CVE-2019-8750: found by OSS-Fuzz
Entry added October 29, 2019

mDNSResponder
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 physical proximity may be able to passively
observe device names in AWDL communications
Description: This issue was resolved by replacing device names with a
random identifier.
CVE-2019-8799: David Kreitschmann and Milan Stute of Secure Mobile
Networking Lab at Technische Universität Darmstadt
Entry added October 29, 2019

VoiceOver
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A person with physical access to an iOS device may be able to
access contacts from the lock screen
Description: The issue was addressed by restricting options offered
on a locked device.
CVE-2019-8775: videosdebarraquito

WebKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Visiting a maliciously crafted website may reveal browsing
history
Description: An issue existed in the drawing of web page elements.
The issue was addressed with improved logic.
CVE-2019-8769: Piérre Reimertz (@reimertz)

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
arbitrary code execution
Description: Multiple memory corruption issues were addressed with
improved memory handling.
CVE-2019-8710: found by OSS-Fuzz
CVE-2019-8743: zhunki from Codesafe Team of Legendsec at Qi'anxin
Group
CVE-2019-8751: Dongzhuo Zhao working with ADLab of Venustech
CVE-2019-8752: Dongzhuo Zhao working with ADLab of Venustech
CVE-2019-8763: Sergei Glazunov of Google Project Zero
CVE-2019-8765: Samuel Groß of Google Project Zero
CVE-2019-8766: found by OSS-Fuzz
CVE-2019-8773: found by OSS-Fuzz

Additional recognition

boringssl
We would like to acknowledge Nimrod Aviram of Tel Aviv University,
Robert Merget of Ruhr University Bochum, Juraj Somorovsky of Ruhr
University Bochum for their assistance.
Entry added October 29, 2019

Find My iPhone
We would like to acknowledge an anonymous researcher for their
assistance.

Identity Service
We would like to acknowledge Yiğit Can YILMAZ (@yilmazcanyigit) for
their assistance.

Notes
We would like to acknowledge an anonymous researcher for their
assistance.

Share Sheet
We would like to acknowledge Milan Stute of Secure Mobile Networking
Lab at Technische Universität Darmstadt for their assistance.

Status Bar
We would like to acknowledge Isaiah Kahler, Mohammed Adham, and an
anonymous researcher for their assistance.

Telephony
We would like to acknowledge Yiğit Can YILMAZ (@yilmazcanyigit) 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 13.1 and iPadOS 13.1".

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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