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APPLE-SA-2018-12-05-1 iOS 12.1.1

iOS 12.1.1 is now available and addresses the following:

Airport
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 type confusion issue was addressed with improved
memory handling.
CVE-2018-4303: Mohamed Ghannam (@_simo36)

Disk Images
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
memory handling.
CVE-2018-4465: Pangu Team

FaceTime
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A local attacker may be able to view contacts
from the lock screen
Description: A lock screen issue allowed access to contacts on a
locked device. This issue was addressed with improved state
management.
CVE-2018-4430: videosdebarraquito

File Provider
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A malicious application may be able to learn information
about the presence of other applications on the device
Description: This issue was addressed with improved entitlements.
CVE-2018-4446: Luke Deshotels, Jordan Beichler, and William Enck of
North Carolina State University; Costin CarabaE and RAzvan
Deaconescu of University POLITEHNICA of Bucharest

Kernel
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: An attacker in a privileged position may be able to perform a
denial of service attack
Description: A denial of service issue was addressed by removing the
vulnerable code.
CVE-2018-4460: Kevin Backhouse of Semmle Security Research 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 initialization issue was addressed with
improved memory handling.
CVE-2018-4431: An independent security researcher has reported this
vulnerability to Beyond Security's SecuriTeam Secure Disclosure
program

Kernel
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 logic issue was addressed with improved restrictions.
CVE-2018-4435: Jann Horn of Google Project Zero, Juwei Lin(@panicaII)
and Junzhi Lu of TrendMicro Mobile Security Team

Kernel
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
state management.
CVE-2018-4447: Juwei Lin(@panicaII) and Zhengyu Dong of TrendMicro
Mobile Security Team

Kernel
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-2018-4461: Ian Beer of Google Project Zero

LinkPresentation
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing a maliciously crafted email may lead to user
interface spoofing
Description: A spoofing issue existed in the handling of URLs. This
issue was addressed with improved input validation.
CVE-2018-4429: Victor Le Pochat of imec-DistriNet, KU Leuven

Profiles
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: An untrusted configuration profile may be incorrectly
displayed as verified
Description: A certificate validation issue existed in configuration
profiles. This was addressed with additional checks.
CVE-2018-4436: James Seeley @Code4iOS, Joseph S. of Wyong High School

Safari
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Visiting a malicious website may lead to user interface
spoofing
Description: A logic issue was addressed with improved validation.
CVE-2018-4439: xisigr of Tencent's Xuanwu Lab (tencent.com)

Safari
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Visiting a malicious website may lead to address bar spoofing
Description: A logic issue was addressed with improved state
management.
CVE-2018-4440: Wenxu Wu of Tencent Security Xuanwu Lab
(xlab.tencent.com)

Safari
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A user may be unable to fully delete browsing history
Description: "Clear History and Website Data" did not clear the
history. The issue was addressed with improved data deletion.
CVE-2018-4445: William Breuer

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-2018-4441: lokihardt of Google Project Zero
CVE-2018-4442: lokihardt of Google Project Zero
CVE-2018-4443: lokihardt of Google Project Zero

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 logic issue existed resulting in memory corruption.
This was addressed with improved state management.
CVE-2018-4438: lokihardt of Google Project Zero

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-2018-4437: HyungSeok Han, DongHyeon Oh, and Sang Kil Cha of
KAIST Softsec Lab, Korea
CVE-2018-4464: HyungSeok Han, DongHyeon Oh, and Sang Kil Cha of
KAIST Softsec Lab, Korea

Additional recognition

Profiles
We would like to acknowledge Luke Deshotels, Jordan Beichler, and
William Enck of North Carolina State University; Costin CarabaE and
RAzvan Deaconescu of University POLITEHNICA of Bucharest for their
assistance.

SafariViewController
We would like to acknowledge YiAit 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 12.1.1".

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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