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APPLE-SA-2019-3-25-1 iOS 12.2

iOS 12.2 is now available and addresses the following:

CFString
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing a maliciously crafted string may lead to a denial
of service
Description: A validation issue was addressed with improved logic.
CVE-2019-8516: SWIPS Team of Frifee Inc.

configd
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to elevate privileges
Description: A memory initialization issue was addressed with
improved memory handling.
CVE-2019-8552: Mohamed Ghannam (@_simo36)

Contacts
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to elevate privileges
Description: A buffer overflow issue was addressed with improved
memory handling.
CVE-2019-8511: an anonymous researcher

CoreCrypto
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to elevate privileges
Description: A buffer overflow was addressed with improved bounds
checking.
CVE-2019-8542: an anonymous researcher

Exchange ActiveSync
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A user may authorize an enterprise administrator to remotely
wipe their device without appropriate disclosure
Description: This issue was addressed with improved transparency.
CVE-2019-8512: an anonymous researcher, an anonymous researcher

FaceTime
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A user's video may not be paused in a FaceTime call if they
exit the FaceTime app while the call is ringing
Description: An issue existed in the pausing of FaceTime video. The
issue was resolved with improved logic.
CVE-2019-8550: Lauren Guzniczak of Keystone Academy

Feedback Assistant
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to gain root privileges
Description: A race condition was addressed with additional
validation.
CVE-2019-8565: CodeColorist of Ant-Financial LightYear Labs

Feedback Assistant
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to overwrite arbitrary
files
Description: This issue was addressed with improved checks.
CVE-2019-8521: CodeColorist of Ant-Financial LightYear Labs

file
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing a maliciously crafted file might disclose user
information
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2019-6237: an anonymous researcher

GeoServices
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Clicking a malicious SMS link may lead to arbitrary code
execution
Description: A memory corruption issue was addressed with improved
validation.
CVE-2019-8553: an anonymous researcher

iAP
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to elevate privileges
Description: A buffer overflow was addressed with improved bounds
checking.
CVE-2019-8542: an anonymous researcher

IOHIDFamily
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A local user may be able to cause unexpected system
termination or read kernel memory
Description: A memory corruption issue was addressed with improved
state management.
CVE-2019-8545: Adam Donenfeld (@doadam) of the Zimperium zLabs Team

IOKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A local user may be able to read kernel memory
Description: A memory initialization issue was addressed with
improved memory handling.
CVE-2019-8504: an anonymous researcher

IOKit SCSI
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: A memory corruption issue was addressed with improved
input validation.
CVE-2019-8529: Juwei Lin (@panicaII) of Trend Micro

Kernel
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A remote attacker may be able to cause unexpected system
termination or corrupt kernel memory
Description: A buffer overflow was addressed with improved size
validation.
CVE-2019-8527: Ned Williamson of Google and derrek (@derrekr6)

Kernel
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: An application may be able to gain elevated privileges
Description: A logic issue was addressed with improved state
management.
CVE-2019-8514: Samuel Groß of Google Project Zero

Kernel
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to determine kernel
memory layout
Description: A memory initialization issue was addressed with
improved memory handling.
CVE-2019-8540: Weibo Wang (@ma1fan) of Qihoo 360  Nirvan Team

Kernel
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A local user may be able to read kernel memory
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2019-7293: Ned Williamson of Google

Kernel
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to determine kernel
memory layout
Description: An out-of-bounds read issue existed that led to the
disclosure of kernel memory. This was addressed with improved input
validation.
CVE-2019-6207: Weibo Wang of Qihoo 360 Nirvan Team (@ma1fan)
CVE-2019-8510: Stefan Esser of Antid0te UG

Mail
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing a maliciously crafted mail message may lead to
S/MIME signature spoofing
Description: This issue was addressed with improved checks.
CVE-2019-7284: Damian Poddebniak of Münster University of Applied
Sciences

Messages
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A local user may be able to view sensitive user information
Description: An access issue was addressed with additional sandbox
restrictions.
CVE-2019-8546: ChiYuan Chang

Power Management
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to execute arbitrary code
with system privileges
Description: Multiple input validation issues existed in MIG
generated code. These issues were addressed with improved validation.
CVE-2019-8549: Mohamed Ghannam (@_simo36) of SSD Secure Disclosure
(ssd-disclosure.com)

Privacy
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious app may be able to track users between installs
Description: A privacy issue existed in motion sensor calibration.
This issue was addressed with improved motion sensor processing.
CVE-2019-8541: Stan (Jiexin) Zhang and Alastair R. Beresford of the
University of Cambridge, Ian Sheret of Polymath Insight Limited

ReplayKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to access the microphone
without indication to the user
Description: An API issue existed in the handling of microphone data.
This issue was addressed with improved validation.
CVE-2019-8566: an anonymous researcher

Safari
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A website may be able to access sensor information without
user consent
Description: A permissions issue existed in the handling of motion
and orientation data. This issue was addressed with improved
restrictions.
CVE-2019-8554: an anonymous researcher

Safari Reader
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Enabling the Safari Reader feature on a maliciously crafted
webpage may lead to universal cross site scripting
Description: A logic issue was addressed with improved validation.
CVE-2019-6204: Ryan Pickren (ryanpickren.com)
CVE-2019-8505: Ryan Pickren (ryanpickren.com)

Siri
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to initiate a Dictation
request without user authorization
Description: An API issue existed in the handling of dictation
requests. This issue was addressed with improved validation.
CVE-2019-8502: Luke Deshotels of North Carolina State University,
Jordan Beichler of North Carolina State University, William Enck of
North Carolina State University, Costin Carabaș of University
POLITEHNICA of Bucharest, and Răzvan Deaconescu of University
POLITEHNICA of Bucharest

TrueTypeScaler
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing a maliciously crafted font may result in the
disclosure of process memory
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2019-8517: riusksk of VulWar Corp working with Trend Micro Zero
Day Initiative

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing maliciously crafted web content may lead to
universal cross site scripting
Description: A logic issue was addressed with improved validation.
CVE-2019-8551: Ryan Pickren (ryanpickren.com)

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A memory corruption issue was addressed with improved
state management.
CVE-2019-8535: Zhiyang Zeng (@Wester) of Tencent Blade Team

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th 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-2019-6201: dwfault working with ADLab of Venustech
CVE-2019-8518: Samuel Groß of Google Project Zero
CVE-2019-8523: Apple
CVE-2019-8524: G. Geshev working with Trend Micro Zero Day Initiative
CVE-2019-8558: Samuel Groß of Google Project Zero
CVE-2019-8559: Apple
CVE-2019-8563: Apple

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A sandboxed process may be able to circumvent sandbox
restrictions
Description: A memory corruption issue was addressed with improved
validation.
CVE-2019-8562: Wen Xu of SSLab at Georgia Tech and Hanqing Zhao of
Chaitin Security Research Lab

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A website may be able to access the microphone without the
microphone use indicator being shown
Description: A consistency issue was addressed with improved state
handling.
CVE-2019-6222: Denis Markov of Resonance Software

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2019-8536: Apple
CVE-2019-8544: an anonymous researcher

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing maliciously crafted web content may disclose
sensitive user information
Description: A cross-origin issue existed with the fetch API. This
was addressed with improved input validation.
CVE-2019-8515: James Lee (@Windowsrcer)

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th 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-2019-7285: dwfault working at ADLab of Venustech
CVE-2019-8556: Apple

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A type confusion issue was addressed with improved
memory handling.
CVE-2019-8506: Samuel Groß of Google Project Zero

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious website may be able to execute scripts in the
context of another website
Description: A logic issue was addressed with improved validation.
CVE-2019-8503: Linus Särud of Detectify

WebKit
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing maliciously crafted web content may result in the
disclosure of process memory
Description: A validation issue was addressed with improved logic.
CVE-2019-7292: Zhunki and Zhiyi Zhang of 360 ESG Codesafe Team

Wi-Fi
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A device may be passively tracked by its WiFi MAC address
Description: A user privacy issue was addressed by removing the
broadcast MAC address.
CVE-2019-8567: David Kreitschmann and Milan Stute of Secure Mobile
Networking Lab at Technische Universität Darmstadt

XPC
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to overwrite arbitrary
files
Description: This issue was addressed with improved checks.
CVE-2019-8530: CodeColorist of Ant-Financial LightYear Labs

Additional recognition

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

Calendar
We would like to acknowledge Peter Hempsall of 104days.com, Sascha
Mogler of mogler.com, and an anonymous researcher for their
assistance.

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

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

Safari
We would like to acknowledge Nikhil Mittal (@c0d3G33k) of Payatu Labs
(payatu.com) for their assistance.

Screen Time
We would like to acknowledge Brandon Moore (@Brandonsecurity) for
their assistance.

WebKit
We would like to acknowledge Andrey Kovalev of Yandex Security Team
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 12.2".

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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