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Date: Tue, 10 Dec 2019 15:54:49 -0800
From: Apple Product Security via Fulldisclosure <fulldisclosure@...lists.org>
To: security-announce@...ts.apple.com
Subject: [FD] APPLE-SA-2019-12-10-1 iOS 13.3 and iPadOS 13.3

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

APPLE-SA-2019-12-10-1 iOS 13.3 and iPadOS 13.3

iOS 13.3 and iPadOS 13.3 is now available and addresses the
following:

CallKit
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Calls made using Siri may be initiated using the wrong
cellular plan on devices with two active plans
Description: An API issue existed in the handling of outgoing phone
calls initiated with Siri. This issue was addressed with improved
state handling.
CVE-2019-8856: Fabrice TERRANCLE of TERRANCLE SARL

CFNetwork Proxies
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 gain elevated privileges
Description: This issue was addressed with improved checks.
CVE-2019-8848: Zhuo Liang of Qihoo 360 Vulcan Team

FaceTime
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Processing malicious video via FaceTime may lead to arbitrary
code execution
Description: An out-of-bounds read was addressed with improved input
validation.
CVE-2019-8830: Natalie Silvanovich of Google Project Zero

IOSurfaceAccelerator
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: An information disclosure issue was addressed by
removing the vulnerable code.
CVE-2019-8841: Corellium

IOUSBDeviceFamily
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 with improved
memory handling.
CVE-2019-8836: Xiaolong Bai and Min (Spark) Zheng of Alibaba Inc. and
Luyi Xing of Indiana University Bloomington

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 issue was addressed by removing the
vulnerable code.
CVE-2019-8833: Ian Beer of Google Project Zero

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 issue was addressed with improved
memory handling.
CVE-2019-8828: Cim Stordal of Cognite
CVE-2019-8838: Dr Silvio Cesare of InfoSect

libexpat
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 XML file may lead to disclosure
of user information
Description: This issue was addressed by updating to expat version
2.2.8.
CVE-2019-15903: Joonun Jang

Photos
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Live Photo audio and video data may be shared via iCloud
links even if Live Photo is disabled in the Share Sheet carousel
Description: The issue was addressed with improved validation when an
iCloud Link is created.
CVE-2019-8857: Tor Bruce

Security
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
system privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2019-8832: Insu Yun of SSLab at 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
arbitrary code execution
Description: Multiple memory corruption issues were addressed with
improved memory handling.
CVE-2019-8835: Anonymous working with Trend Micro's Zero Day
Initiative, Mike Zhang of Pangu Team
CVE-2019-8844: William Bowling (@wcbowling)

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: A use after free issue was addressed with improved
memory management.
CVE-2019-8846: Marcin Towalski of Cisco Talos

Additional recognition

Accounts
We would like to acknowledge Kishan Bagaria (KishanBagaria.com <http://kishanbagaria.com/>) and
Tom Snelling of Loughborough University for their assistance.

Core Data
We would like to acknowledge Natalie Silvanovich of Google Project
Zero for their assistance.

Settings
We would like to acknowledge an anonymous researcher 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/ <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 13.3 and iPadOS 13.3".

Information will also be posted to the Apple Security Updates
web site: https://support.apple.com/kb/HT201222 <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/ <https://www.apple.com/support/security/pgp/>
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