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AUSCERT External Security Bulletin Redistribution
ESB-2019.4627
iOS 13.3 and iPadOS 13.3
11 December 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: Apple iOS & iPadOS
Publisher: Apple
Operating System: Mobile Device
Impact/Access: Root Compromise -- Remote with User Interaction
Execute Arbitrary Code/Commands -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-15903 CVE-2019-8857 CVE-2019-8856
CVE-2019-8848 CVE-2019-8846 CVE-2019-8844
CVE-2019-8841 CVE-2019-8838 CVE-2019-8836
CVE-2019-8835 CVE-2019-8833 CVE-2019-8832
CVE-2019-8830 CVE-2019-8828
Original Bulletin:
https://support.apple.com/kb/HT201222
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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
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APPLE-SA-2019-12-10-2 iOS 12.4.4
iOS 12.4.4 is now available and addresses the following:
FaceTime
Available for: iPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad
mini 2, iPad mini 3, and iPod touch 6th 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
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 12.4.4".
Information will also be posted to the Apple Security Updates
web site: https://support.apple.com/kb/HT201222
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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
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which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
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from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
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information, please contact them directly.
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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