About the security content of iOS 14.6 and iPadOS 14.6

This document describes the security content of iOS 14.6 and iPadOS 14.6.

About Apple security updates

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iOS 14.6 and iPadOS 14.6

Released May 24, 2021

Audio

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 lead to arbitrary code execution

Description: This issue was addressed with improved checks.

CVE-2021-30707: hjy79425575 working with Trend Micro Zero Day Initiative

Audio

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: Parsing a maliciously crafted audio file may lead to disclosure of user information

Description: This issue was addressed with improved checks.

CVE-2021-30685: Mickey Jin (@patch1t) of Trend Micro

AVEVideoEncoder

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 cause unexpected system termination or write kernel memory

Description: A race condition was addressed with improved state handling.

CVE-2021-30714: @08Tc3wBB of ZecOps, and George Nosenko

CommCenter

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 accept invalid activation results

Description: A logic issue was addressed with improved restrictions.

CVE-2021-30729: CHRISTIAN MINA

Core Services

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 gain root privileges

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

CVE-2021-30681: Zhongcheng Li (CK01)

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 maliciously crafted audio file may disclose restricted memory

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

CVE-2021-30686: Mickey Jin of Trend Micro

Crash Reporter

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: A logic issue was addressed with improved state management.

CVE-2021-30727: Cees Elzinga

CVMS

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 elevate  their privileges

Description: This issue was addressed with improved checks.

CVE-2021-30724: Mickey Jin (@patch1t) of Trend Micro

Heimdal

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 user may be able to leak sensitive user information

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

CVE-2021-30697: Gabe Kirkpatrick (@gabe_k)

Heimdal

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 cause a denial of service or potentially disclose memory contents

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

CVE-2021-30710: Gabe Kirkpatrick (@gabe_k)

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 disclosure of user information

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

CVE-2021-30687: Hou JingYi (@hjy79425575) of Qihoo 360

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 disclosure of user information

Description: This issue was addressed with improved checks.

CVE-2021-30700: Ye Zhang(@co0py_Cat) of Baidu Security

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-2021-30701: Mickey Jin (@patch1t) of Trend Micro and Ye Zhang of Baidu Security

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 ASTC file may disclose memory contents

Description: This issue was addressed with improved checks.

CVE-2021-30705: Ye Zhang of Baidu Security

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 logic issue was addressed with improved validation.

CVE-2021-30740: Linus Henze (pinauten.de)

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 disclose restricted memory

Description: This issue was addressed with improved checks.

CVE-2021-30674: Siddharth Aeri (@b1n4r1b01)

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: An application may be able to execute arbitrary code with kernel privileges

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

CVE-2021-30704: an anonymous researcher

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: Processing a maliciously crafted message may lead to a denial of service

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

CVE-2021-30715: The UK's National Cyber Security Centre (NCSC)

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: An application may be able to execute arbitrary code with kernel privileges

Description: A buffer overflow was addressed with improved size validation.

CVE-2021-30736: Ian Beer of Google Project Zero

LaunchServices

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 break out of its sandbox

Description: This issue was addressed with improved environment sanitization.

CVE-2021-30677: Ron Waisberg (@epsilan)

Mail

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 mail message may lead to unexpected memory modification or application termination

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

CVE-2021-30741: SYMaster of ZecOps Mobile EDR Team

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 information disclosure issue was addressed with improved state management.

CVE-2021-30723: Mickey Jin (@patch1t) of Trend Micro

CVE-2021-30691: Mickey Jin (@patch1t) of Trend Micro

CVE-2021-30692: Mickey Jin (@patch1t) of Trend Micro

CVE-2021-30694: Mickey Jin (@patch1t) of Trend Micro

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 lead to unexpected application termination or arbitrary code execution

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

CVE-2021-30725: Mickey Jin (@patch1t) of Trend Micro

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-2021-30746: Mickey Jin (@patch1t) of Trend Micro

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 image may lead to arbitrary code execution

Description: A validation issue was addressed with improved logic.

CVE-2021-30693: Mickey Jin (@patch1t) & Junzhi Lu (@pwn0rz) of Trend Micro

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 bounds checking.

CVE-2021-30695: Mickey Jin (@patch1t) & Junzhi Lu (@pwn0rz) of Trend Micro

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 lead to unexpected application termination or arbitrary code execution

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

CVE-2021-30708: Mickey Jin (@patch1t) & Junzhi Lu (@pwn0rz) of Trend Micro

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: This issue was addressed with improved checks.

CVE-2021-30709: Mickey Jin (@patch1t) of Trend Micro

Notes

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 user may be able to view restricted content from the lockscreen

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

CVE-2021-30699: videosdebarraquito

Security

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 certificate may lead to arbitrary code execution

Description: A memory corruption issue in the ASN.1 decoder was addressed by removing the vulnerable code.

CVE-2021-30737: xerub

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 universal cross site scripting

Description: A cross-origin issue with iframe elements was addressed with improved tracking of security origins.

CVE-2021-30744: Dan Hite of jsontop

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-2021-21779: Marcin Towalski of Cisco Talos

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 application may be able to leak sensitive user information

Description: A logic issue was addressed with improved restrictions.

CVE-2021-30682: an anonymous researcher and 1lastBr3ath

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 universal cross site scripting

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

CVE-2021-30689: an anonymous researcher

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-2021-30749: an anonymous researcher and mipu94 of SEFCOM lab, ASU. working with Trend Micro Zero Day Initiative

CVE-2021-30734: Jack Dates of RET2 Systems, Inc. (@ret2systems) working with Trend Micro Zero Day Initiative

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 be able to access restricted ports on arbitrary servers

Description: A logic issue was addressed with improved restrictions.

CVE-2021-30720: David Schütz (@xdavidhu)

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: A remote attacker may be able to cause a denial of service

Description: A null pointer dereference was addressed with improved input validation.

CVE-2021-23841: Tavis Ormandy of Google

CVE-2021-30698: Tavis Ormandy of Google

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 WiFi range may be able to force a client to use a less secure authentication mechanism

Description: A logic issue was addressed with improved validation.

CVE-2021-30667: Raul Siles of DinoSec (@dinosec)

Additional recognition

AVEVideoEncoder

We would like to acknowledge @08Tc3wBB for their assistance.

CommCenter

We would like to acknowledge CHRISTIAN MINA and Stefan Sterz (@0x7374) of Secure Mobile Networking Lab at TU Darmstadt and Industrial Software at TU Wien for their assistance.

CoreCapture

We would like to acknowledge Zuozhi Fan (@pattern_F_) of Ant-financial TianQiong Security Lab for their assistance.

ImageIO

We would like to acknowledge Jzhu working with Trend Micro Zero Day Initiative and an anonymous researcher for their assistance.

Kernel

We would like to acknowledge Saar Amar (@AmarSaar) for their assistance.

Mail Drafts

We would like to acknowledge Lauritz Holtmann (@_lauritz_) for their assistance.

NetworkExtension

We would like to acknowledge Matthias Ortmann of Secure Mobile Networking Lab for their assistance.

WebKit

We would like to acknowledge Chris Salls (@salls) of Makai Security for their assistance.

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