About the security content of iOS 12.2

This document describes the security content of iOS 12.2.

About Apple security updates

For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.

Apple security documents reference vulnerabilities by CVE-ID when possible.

For more information about security, see the Apple Product Security page.

iOS 12.2

802.1X

Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation

Impact: An attacker in a privileged network position may be able to intercept network traffic

Description: A logic issue was addressed with improved state management.

CVE-2019-6203: Dominic White of SensePost (@singe)

Accounts

Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation

Impact: Processing a maliciously crafted vcf file may lead to a denial of service

Description: A denial of service issue was addressed with improved validation.

CVE-2019-8538: Trevor Spiniolas (@TrevorSpiniolas)

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, Dennis Munsie of Amazon.com

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-2019-8906: Francisco Alonso

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 Research working with Trend Micro's Zero Day Initiative

Kernel

Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation

Impact: A remote attacker may be able to alter network traffic data

Description: A memory corruption issue existed in the handling of IPv6 packets. This issue was addressed with improved memory management.

CVE-2019-5608: Apple

Kernel

Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation

Impact: A remote attacker may be able to leak memory

Description: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation.

CVE-2019-8547: 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 execute arbitrary code with kernel privileges

Description: A memory corruption issue was addressed with improved state management.

CVE-2019-8525: Zhuo Liang and shrek_wzw of Qihoo 360 Nirvan Team

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 execute arbitrary code with kernel privileges

Description: A use after free issue was addressed with improved memory management.

CVE-2019-8528: Fabiano Anemone (@anoane), Zhao Qixun (@S0rryMybad) of Qihoo 360 Vulcan Team

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

MediaLibrary

Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation

Impact: A malicious application may be able to access restricted files

Description: A permissions issue was addressed by removing vulnerable code and adding additional checks.

CVE-2019-8532: Angel Ramirez, Min (Spark) Zheng and Xiaolong Bai of Alibaba Inc.

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 and 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)

Sandbox

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 logic issue was addressed with improved restrictions.

CVE-2019-8618: Brandon Azad

Security

Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation

Impact: An untrusted radius server certificate may be trusted

Description: A validation issue existed in Trust Anchor Management. This issue was addressed with improved validation.

CVE-2019-8531: an anonymous researcher, QA team of SecureW2

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

CVE-2019-8638: found by OSS-Fuzz

CVE-2019-8639: found by OSS-Fuzz

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 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 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 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 Wi-Fi 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

Accounts

We would like to acknowledge Milan Stute of Secure Mobile Networking Lab at Technische Universität Darmstadt for their assistance.

Books

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

Calendar

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

Kernel

We would like to acknowledge Brandon Azad, Raz Mashat (@RazMashat) of Ilan Ramon High School, 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), Ryan Pickren (ryanpickren.com) for their assistance.

Screen Recording

We would like to acknowledge Brandon Moore (@Brandonsecurity) 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, David House of Kaiser Permanente, Radha Patnayakuni of Salesforce for their assistance.