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HistorySep 20, 2021 - 12:00 a.m.

About the security content of iOS 15 and iPadOS 15

2021-09-2000:00:00
support.apple.com
33

8.8 High

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

79.2%

About the security content of iOS 15 and iPadOS 15

This document describes the security content of iOS 15 and iPadOS 15.

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 15 and iPadOS 15

Released September 20, 2021

Accessory Manager

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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 consumption issue was addressed with improved memory handling.

CVE-2021-30837: Siddharth Aeri (@b1n4r1b01)

AppleMobileFileIntegrity

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: A local attacker may be able to read sensitive information

Description: This issue was addressed with improved checks.

CVE-2021-30811: an anonymous researcher working with Compartir

Apple Neural Engine

Available for devices with Apple Neural Engine: iPhone 8 and later, iPad Pro (3rd generation) and later, iPad Air (3rd generation) and later, and iPad mini (5th generation)

Impact: A malicious application may be able to execute arbitrary code with system privileges on devices with an Apple Neural Engine

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2021-30838: proteas wang

bootp

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: A device may be passively tracked by its WiFi MAC address

Description: A user privacy issue was addressed by removing the broadcast MAC address.

CVE-2021-30866: Fabien Duchêne of UCLouvain (Belgium)

Entry added October 25, 2021

CoreAudio

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Processing a malicious audio file may result in unexpected application termination or arbitrary code execution

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

CVE-2021-30834: JunDong Xie of Ant Security Light-Year Lab

Entry added October 25, 2021

CoreGraphics

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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: A memory corruption issue was addressed with improved input validation.

CVE-2021-30928: Mickey Jin (@patch1t) of Trend Micro

Entry added January 19, 2022

CoreML

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: A local attacker may be able to cause unexpected application termination or arbitrary code execution

Description: This issue was addressed with improved checks.

CVE-2021-30825: hjy79425575 working with Trend Micro Zero Day Initiative

Face ID

Available for devices with Face ID: iPhone X, iPhone XR, iPhone XS (all models), iPhone 11 (all models), iPhone 12 (all models), iPad Pro (11-inch), and iPad Pro (3rd generation)

Impact: A 3D model constructed to look like the enrolled user may be able to authenticate via Face ID

Description: This issue was addressed by improving Face ID anti-spoofing models.

CVE-2021-30863: Wish Wu (吴潍浠 @wish_wu) of Ant Group Tianqiong Security Lab

Entry updated January 19, 2022

FaceTime

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: An attacker with physical access to a device may be able to see private contact information

Description: The issue was addressed with improved permissions logic.

CVE-2021-30816: Atharv (@atharv0x0)

Entry added October 25, 2021

FaceTime

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: An application with microphone permission may unexpectedly access microphone input during a FaceTime call

Description: A logic issue was addressed with improved validation.

CVE-2021-30882: Adam Bellard and Spencer Reitman of Airtime

Entry added October 25, 2021

FontParser

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th 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 input validation.

CVE-2021-30831: Xingwei Lin of Ant Security Light-Year Lab

Entry added October 25, 2021

FontParser

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Processing a maliciously crafted dfont file may lead to arbitrary code execution

Description: This issue was addressed with improved checks.

CVE-2021-30840: Xingwei Lin of Ant Security Light-Year Lab

Entry added October 25, 2021

FontParser

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Processing a maliciously crafted dfont file may lead to arbitrary code execution

Description: This issue was addressed with improved checks.

CVE-2021-30841: Xingwei Lin of Ant Security Light-Year Lab

CVE-2021-30842: Xingwei Lin of Ant Security Light-Year Lab

CVE-2021-30843: Xingwei Lin of Ant Security Light-Year Lab

Foundation

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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-2021-30852: Yinyi Wu (@3ndy1) of Ant Security Light-Year Lab

Entry added October 25, 2021

iCloud Photo Library

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: A malicious application may be able to access photo metadata without needing permission to access photos

Description: The issue was addressed with improved authentication.

CVE-2021-30867: Csaba Fitzl (@theevilbit) of Offensive Security

Entry added October 25, 2021

ImageIO

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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: A memory corruption issue was addressed with improved input validation.

CVE-2021-30814: hjy79425575

Entry added October 25, 2021

ImageIO

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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: This issue was addressed with improved checks.

CVE-2021-30835: Ye Zhang of Baidu Security

CVE-2021-30847: Mike Zhang of Pangu Lab

Kernel

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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 race condition was addressed with improved locking.

CVE-2021-30857: Manish Bhatt of Red Team X @Meta, Zweig of Kunlun Lab

Entry updated May 25, 2022

libexpat

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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: This issue was addressed by updating expat to version 2.4.1.

CVE-2013-0340: an anonymous researcher

Model I/O

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Processing a maliciously crafted USD file may disclose memory contents

Description: An out-of-bounds read was addressed with improved input validation.

CVE-2021-30819: Apple

NetworkExtension

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: A VPN configuration may be installed by an app without user permission

Description: An authorization issue was addressed with improved state management.

CVE-2021-30874: Javier Vieira Boccardo (linkedin.com/javier-vieira-boccardo)

Entry added October 25, 2021

Preferences

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: An application may be able to access restricted files

Description: A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks.

CVE-2021-30855: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com)

Preferences

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: A sandboxed process may be able to circumvent sandbox restrictions

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

CVE-2021-30854: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com)

Privacy

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: A malicious application may be able to access some of the user’s Apple ID information, or recent in-app search terms

Description: An access issue was addressed with additional sandbox restrictions on third party applications.

CVE-2021-30898: Steven Troughton-Smith of High Caffeine Content (@stroughtonsmith)

Entry added January 19, 2022

Quick Look

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Previewing an html file attached to a note may unexpectedly contact remote servers

Description: A logic issue existed in the handling of document loads. This issue was addressed with improved state management.

CVE-2021-30870: Saif Hamed Al Hinai Oman CERT

Entry added October 25, 2021

Sandbox

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: A malicious application may be able to bypass Privacy preferences

Description: The issue was addressed with improved permissions logic.

CVE-2021-30925: Csaba Fitzl (@theevilbit) of Offensive Security

Entry added January 19, 2022

Sandbox

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: A malicious application may be able to modify protected parts of the file system

Description: This issue was addressed with improved checks.

CVE-2021-30808: Csaba Fitzl (@theevilbit) of Offensive Security

Entry added October 25, 2021

Siri

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th 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-2021-30815: Anshraj Srivastava (@AnshrajSrivas14) of UKEF

Entry updated January 19, 2022

Telephony

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: An attacker in a privileged network position may be able to leak sensitive user information

Description: An access issue was addressed with improved access restrictions.

CVE-2021-31001: Rajanish Pathak (@h4ckologic) and Hardik Mehta (@hardw00t)

Entry added May 25, 2022

Telephony

Available for: iPhone SE (1st generation), iPad Pro 12.9-inch, iPad Air 2, iPad (5th generation), and iPad mini 4

Impact: In certain situations, the baseband would fail to enable integrity and ciphering protection

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

CVE-2021-30826: CheolJun Park, Sangwook Bae and BeomSeok Oh of KAIST SysSec Lab

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Turning off “Block all remote content” may not apply to all remote content types

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

CVE-2021-31005: Jonathan Austin of Wells Fargo, Attila Soki

Entry added March 31, 2022

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Processing maliciously crafted web content may lead to code execution

Description: A type confusion issue was addressed with improved memory handling.

CVE-2021-31008

Entry added March 31, 2022

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: A malicious website may exfiltrate data cross-origin

Description: An issue existed in the specification for the resource timing API. The specification was updated and the updated specification was implemented.

CVE-2021-30897: an anonymous researcher

Entry added January 19, 2022

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Visiting a maliciously crafted website may reveal a user’s browsing history

Description: The issue was resolved with additional restrictions on CSS compositing.

CVE-2021-30884: an anonymous researcher

Entry added October 25, 2021

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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 state handling.

CVE-2021-30818: Amar Menezes (@amarekano) of Zon8Research

Entry added October 25, 2021

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Processing a maliciously crafted audio file may disclose restricted memory

Description: An out-of-bounds read was addressed with improved input validation.

CVE-2021-30836: Peter Nguyen Vu Hoang of STAR Labs

Entry added October 25, 2021

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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-2021-30809: an anonymous researcher

Entry added October 25, 2021

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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 memory handling.

CVE-2021-30846: Sergei Glazunov of Google Project Zero

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Processing maliciously crafted web content may lead to code execution

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2021-30848: Sergei Glazunov of Google Project Zero

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation 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-2021-30849: Sergei Glazunov of Google Project Zero

WebKit

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Processing maliciously crafted web content may lead to code execution

Description: A memory corruption vulnerability was addressed with improved locking.

CVE-2021-30851: Samuel Groß of Google Project Zero

WebRTC

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: Visiting a maliciously crafted website may lead to the disclosure of sensitive user information

Description: A logic issue was addressed with improved restrictions.

CVE-2021-30930: Oguz Kırat, Matthias Keller (m-keller.com)

Entry added September 16, 2022

Wi-Fi

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)

Impact: An attacker in physical proximity may be able to force a user onto a malicious Wi-Fi network during device setup

Description: An authorization issue was addressed with improved state management.

CVE-2021-30810: Peter Scott

Entry updated January 19, 2022

Additional recognition

Assets

We would like to acknowledge Cees Elzinga for their assistance.

Bluetooth

We would like to acknowledge Dennis Heinze (@ttdennis) of TU Darmstadt, Secure Mobile Networking Lab for their assistance.

Entry updated May 25, 2022

bootp

We would like to acknowledge Alexander Burke of alexburke.ca for their assistance.

Entry added March 31, 2022, updated May 25, 2022

FaceTime

Mohammed Waqqas Kakangarai

Entry added May 25, 2022

File System

We would like to acknowledge Siddharth Aeri (@b1n4r1b01) for their assistance.

Kernel

We would like to acknowledge Joshua Baums of Informatik Baums for their assistance.

Entry added March 31, 2022

Sandbox

We would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive Security for their assistance.

UIKit

We would like to acknowledge Jason Rendel of Diligent for their assistance.

Entry updated March 31, 2022

WebKit

We would like to acknowledge Nikhil Mittal (@c0d3G33k) and an anonymous researcher for their assistance.

Entry added March 31, 2022, updated May 25, 2022

WebRTC

We would like to acknowledge Matthias Keller (m-keller.com) for their assistance.

Entry added March 31, 2022

Wi-Fi

We would like to acknowledge Peter Scott for their assistance.

Entry added May 25, 2022

Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.

Published Date: November 03, 2023

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