-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

APPLE-SA-2018-1-23-1 iOS 11.2.5

iOS 11.2.5 is now available and addresses the following:

Audio
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: Processing a maliciously crafted audio file may lead to
arbitrary code execution
Description: A memory corruption issue was addressed through improved
input validation.
CVE-2018-4094: Mingi Cho, MinSik Shin, Seoyoung Kim, Yeongho Lee and
Taekyoung Kwon of the Information Security Lab, Yonsei University

Core Bluetooth
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
system privileges
Description: A memory corruption issue was addressed with improved
memory handling.
CVE-2018-4087: Rani Idan (@raniXCH) of Zimperium zLabs Team
CVE-2018-4095: Rani Idan (@raniXCH) of Zimperium zLabs Team

Kernel
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: An application may be able to read restricted memory
Description: A memory initialization issue was addressed through
improved memory handling.
CVE-2018-4090: Jann Horn of Google Project Zero

Kernel
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: An application may be able to read restricted memory
Description: A race condition was addressed through improved locking.
CVE-2018-4092: an anonymous researcher

Kernel
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 kernel privileges
Description: A memory corruption issue was addressed through improved
input validation.
CVE-2018-4082: Russ Cox of Google

Kernel
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: An application may be able to read restricted memory
Description: A validation issue was addressed with improved input
sanitization.
CVE-2018-4093: Jann Horn 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 text message may lead to
application denial of service
Description: A resource exhaustion issue was addressed through
improved input validation.
CVE-2018-4100: Abraham Masri (@cheesecakeufo)

QuartzCore
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 existed in the processing of
web content. This issue was addressed through improved input
validation.
CVE-2018-4085: Ret2 Systems Inc. working with Trend Micro's Zero Day
Initiative

Security
Available for: iPhone 5s and later, iPad Air and later, and iPod
touch 6th generation
Impact: A certificate may have name constraints applied incorrectly
Description: A certificate evaluation issue existed in the handling
of name constraints. This issue was addressed through improved trust
evaluation of certificates.
CVE-2018-4086: Ian Haken of Netflix

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-2018-4088: Jeonghoon Shin of Theori
CVE-2018-4089: Ivan Fratric of Google Project Zero
CVE-2018-4096: found by OSS-Fuzz

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 "11.2.5".

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/
-----BEGIN PGP SIGNATURE-----
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=F6+9
-----END PGP SIGNATURE-----