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Apple Security Advisory 2020-05-26-1

Apple Security Advisory 2020-05-26-1
Posted May 29, 2020
Authored by Apple | Site apple.com

Apple Security Advisory 2020-05-26-1 - iOS 13.5 and iPadOS 13.5 address bypass, code execution, cross site scripting, denial of service, double free, information leakage, integer overflow, out of bounds read, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution, xss
systems | apple, ios
advisories | CVE-2019-20044, CVE-2019-20503, CVE-2020-3878, CVE-2020-6616, CVE-2020-9789, CVE-2020-9790, CVE-2020-9791, CVE-2020-9792, CVE-2020-9793, CVE-2020-9794, CVE-2020-9795, CVE-2020-9797, CVE-2020-9800, CVE-2020-9802, CVE-2020-9803, CVE-2020-9805, CVE-2020-9806, CVE-2020-9807, CVE-2020-9808, CVE-2020-9809, CVE-2020-9811, CVE-2020-9812, CVE-2020-9813, CVE-2020-9814, CVE-2020-9815, CVE-2020-9816, CVE-2020-9818, CVE-2020-9819
MD5 | 3bf84c95f1052ea67704c2a2f7179ba0

Apple Security Advisory 2020-05-26-1

Change Mirror Download
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APPLE-SA-2020-05-26-1 iOS 13.5 and iPadOS 13.5

iOS 13.5 and iPadOS 13.5 address the following:

Accounts
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: A denial of service issue was addressed with improved
input validation.
CVE-2020-9827: Jannik Lorenz of SEEMOO @ TU Darmstadt

AirDrop
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: A denial of service issue was addressed with improved
input validation.
CVE-2020-9826: Dor Hadad of Palo Alto Networks

AppleMobileFileIntegrity
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 use arbitrary entitlements
Description: This issue was addressed with improved checks.
CVE-2020-9842: Linus Henze (pinauten.de)

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-2020-9815: Yu Zhou (@yuzhou6666) working with Trend Micro Zero
Day Initiative

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 input
validation.
CVE-2020-9791: Yu Zhou (@yuzhou6666) working with Trend Micro Zero
Day Initiative

Bluetooth
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
intercept Bluetooth traffic
Description: An issue existed with the use of a PRNG with low
entropy. This issue was addressed with improved state management.
CVE-2020-6616: Jörn Tillmanns (@matedealer) and Jiska Classen
(@naehrdine) of Secure Mobile Networking Lab

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 be able to cause arbitrary code
execution
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2020-9838: Dennis Heinze (@ttdennis) of TU Darmstadt, Secure
Mobile Networking Lab

CoreText
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 text message may lead to
application denial of service
Description: A validation issue was addressed with improved input
sanitization.
CVE-2020-9829: Aaron Perris (@aaronp613), an anonymous researcher, an
anonymous researcher, Carlos S Tech, Sam Menzies of Sam’s Lounge,
Sufiyan Gouri of Lovely Professional University, India, Suleman Hasan
Rathor of Arabic-Classroom.com

FaceTime
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th 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-2020-9835: Olivier Levesque (@olilevesque)

File System
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 modify the file system
Description: A logic issue was addressed with improved restrictions.
CVE-2020-9820: Thijs Alkemade of Computest

FontParser
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Opening a maliciously crafted PDF file may lead to an
unexpected application termination or arbitrary code execution
Description: An out-of-bounds write issue was addressed with improved
bounds checking.
CVE-2020-9816: Peter Nguyen Vu Hoang of STAR Labs working with Trend
Micro Zero Day Initiative

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 read was addressed with improved input
validation.
CVE-2020-3878: Samuel Groß of Google Project Zero

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-2020-9789: Wenchao Li of VARAS@IIE
CVE-2020-9790: Xingwei Lin of Ant-financial Light-Year Security Lab

IPSec
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 leak memory
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2020-9837: Thijs Alkemade of Computest

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 kernel privileges
Description: A memory corruption issue was addressed with improved
state management.
CVE-2020-9821: Xinru Chi and Tielei Wang of Pangu Lab

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 another
application's memory layout
Description: An information disclosure issue was addressed by
removing the vulnerable code.
CVE-2020-9797: an anonymous researcher

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 kernel privileges
Description: An integer overflow was addressed through improved input
validation.
CVE-2020-9852: Tao Huang and Tielei Wang of Pangu Lab

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 use after free issue was addressed with improved
memory management.
CVE-2020-9795: Zhuo Liang of Qihoo 360 Vulcan Team

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 cause unexpected system
termination or write kernel memory
Description: A memory corruption issue was addressed with improved
state management.
CVE-2020-9808: Xinru Chi and Tielei Wang of Pangu Lab

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 user may be able to read kernel memory
Description: An information disclosure issue was addressed with
improved state management.
CVE-2020-9811: Tielei Wang of Pangu Lab
CVE-2020-9812: Derrek (@derrekr6)

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 kernel privileges
Description: A logic issue existed resulting in memory corruption.
This was addressed with improved state management.
CVE-2020-9813: Xinru Chi of Pangu Lab
CVE-2020-9814: Xinru Chi and Tielei Wang of Pangu Lab

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: An information disclosure issue was addressed with
improved state management.
CVE-2020-9809: Benjamin Randazzo (@____benjamin)

Mail
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 mail message may lead to
heap corruption
Description: A memory consumption issue was addressed with improved
memory handling.
CVE-2020-9819: ZecOps.com

Mail
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 mail message may lead to
unexpected memory modification or application termination
Description: An out-of-bounds write issue was addressed with improved
bounds checking.
CVE-2020-9818: ZecOps.com

Messages
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: Users removed from an iMessage conversation may still be able
to alter state
Description: This issue was addressed with improved checks.
CVE-2020-9823: Suryansh Mansharamani, student of Community Middle
School, Plainsboro, New
Jersey

Notifications
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
view notification contents from the lockscreen
Description: An authorization issue was addressed with improved state
management.
CVE-2020-9848: Nima

Python
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 arbitrary code
execution
Description: A memory corruption issue was addressed with improved
input validation.
CVE-2020-9793

Sandbox
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 bypass Privacy
preferences
Description: An access issue was addressed with additional sandbox
restrictions.
CVE-2020-9825: Sreejith Krishnan R (@skr0x1C0)

SQLite
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 cause a denial of service or
potentially disclose memory contents
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2020-9794

System Preferences
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: A race condition was addressed with improved state
handling.
CVE-2020-9839: @jinmo123, @setuid0x0_, and @insu_yun_en of
@SSLab_Gatech working with Trend Micro’s Zero Day Initiative

USB Audio
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A USB device may be able to cause a denial of service
Description: A validation issue was addressed with improved input
sanitization.
CVE-2020-9792: Andy Davis of NCC Group

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 restrictions.
CVE-2020-9805: 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: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A logic issue was addressed with improved restrictions.
CVE-2020-9802: Samuel Groß of Google Project Zero

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 arbitrary code
execution
Description: A logic issue was addressed with improved restrictions.
CVE-2020-9850: @jinmo123, @setuid0x0_, and @insu_yun_en of
@SSLab_Gatech working with Trend Micro’s 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 lead to a
cross site scripting attack
Description: An input validation issue was addressed with improved
input validation.
CVE-2020-9843: Ryan Pickren (ryanpickren.com)

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 memory corruption issue was addressed with improved
validation.
CVE-2020-9803: Wen Xu 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: A memory corruption issue was addressed with improved
state management.
CVE-2020-9806: Wen Xu of SSLab at Georgia Tech
CVE-2020-9807: Wen Xu 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: A type confusion issue was addressed with improved
memory handling.
CVE-2020-9800: Brendan Draper (@6r3nd4n) working with Trend Micro
Zero Day Initiative

WebRTC
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 result in the
disclosure of process memory
Description: An access issue was addressed with improved memory
management.
CVE-2019-20503: Natalie Silvanovich of Google Project Zero

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: A double free issue was addressed with improved memory
management.
CVE-2020-9844: Ian Beer of Google Project Zero

zsh
Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4
and later, and iPod touch 7th generation
Impact: A local attacker may be able to elevate their privileges
Description: An authorization issue was addressed with improved state
management.
CVE-2019-20044: Sam Foxman

Additional recognition

Bluetooth
We would like to acknowledge Maximilian von Tschitschnitz of
Technical University Munich and Ludwig Peuckert of Technical
University Munich for their assistance.

CoreText
We would like to acknowledge Jiska Classen (@naehrdine) and Dennis
Heinze (@ttdennis) of Secure Mobile Networking Lab for their
assistance.

Device Analytics
We would like to acknowledge Mohamed Ghannam (@_simo36) for their
assistance.

ImageIO
We would like to acknowledge Lei Sun for their assistance.

IOHIDFamily
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.

Safari
We would like to acknowledge Jeffball of GRIMM and Luke Walker of
Manchester Metropolitan University for their assistance.

WebKit
We would like to acknowledge Aidan Dunlap of UT Austin 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 13.5 and iPadOS 13.5".
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