About the security content of iOS 10.2

This document describes the security content of iOS 10.2.

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.

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

iOS 10.2

Released December 12, 2016

Accessibility

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A nearby user may be able to overhear spoken passwords

Description: A disclosure issue existed in the handling of passwords. This issue was addressed by disabling the speaking of passwords.

CVE-2016-7634: Davut Hari, Biren V. Soni, Cameron Lee

Entry updated January 10, 2017

Accessibility

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A person with physical access to an iOS device may be able to access photos and contacts from the lock screen

Description: A lock screen issue allowed access to photos and contacts on a locked device. This issue was addressed by restricting options offered on a locked device.

CVE-2016-7664: Miguel Alvarado of iDeviceHelp

Accounts

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: An issue existed which did not reset the authorization settings on app uninstall

Description: This issue was addressed through improved sanitization.

CVE-2016-7651: Ju Zhu and Lilang Wu of Trend Micro

Audio

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7658: Haohao Kong of Keen Lab (@keen_lab) of Tencent

CVE-2016-7659: Haohao Kong of Keen Lab (@keen_lab) of Tencent

Entry added December 13, 2016

Clipboard

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local attacker may be able to access clipboard contents 

Description: The clipboard contents were accessible before device unlock. This issue was addressed through improved state management. 

CVE-2016-7765: CongRong (@Tr3jer)

Entry updated January 17, 2017

CoreFoundation

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Processing malicious strings may lead to an unexpected application termination or arbitrary code execution

Description: A memory corruption issue existed in the processing of strings. This issue was addressed through improved bounds checking.

CVE-2016-7663: an anonymous researcher

Entry added December 13, 2016

CoreGraphics

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Processing a maliciously crafted font file may lead to unexpected application termination

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

CVE-2016-7627: TRAPMINE Inc. & Meysam Firouzi @R00tkitSMM

Entry added December 13, 2016

CoreMedia External Displays

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local application may be able to execute arbitrary code in the context of the mediaserver daemon

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

CVE-2016-7655: Keen Lab working with Trend Micro’s Zero Day Initiative

Entry added December 13, 2016

CoreMedia Playback

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Processing a maliciously crafted .mp4 file may lead to arbitrary code execution

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

CVE-2016-7588: dragonltx of Huawei 2012 Laboratories

Entry added December 13, 2016

CoreText

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

Description: Multiple memory corruption issues existed in the handling of font files. These issues were addressed through improved bounds checking.

CVE-2016-7595: riusksk(泉哥) of Tencent Security Platform Department

Entry added December 13, 2016

CoreText

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

Description: An issue when rendering overlapping ranges was addressed through improved validation.

CVE-2016-7667: Nasser Al-Hadhrami (@fast_hack), Saif Al-Hinai (welcom_there) of Digital Unit (dgunit.com)

Entry added December 15, 2016

Disk Images

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7616: daybreaker@Minionz working with Trend Micro's Zero Day Initiative

Entry added December 13, 2016

Find My iPhone

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: An attacker with an unlocked device may be able to disable Find My iPhone

Description: A state management issue existed in the handling of authentication information.  This issue was addressed through improved storage of account information.

CVE-2016-7638: an anonymous researcher, Sezer Sakiner

FontParser

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

Description: Multiple memory corruption issues existed in the handling of font files. These issues were addressed through improved bounds checking.

CVE-2016-4691: riusksk(泉哥) of Tencent Security Platform Department

Entry added December 13, 2016

Graphics Driver

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Watching a maliciously crafted video may lead to a denial of service

Description: A denial of service issue existed in the handling of video. This issue was addressed through improved input validation.

CVE-2016-7665: Moataz El Gaml of Schlumberger, Daniel Schurter of watson.ch and Marc Ruef of scip AG

Entry updated December 15, 2016

ICU

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

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

CVE-2016-7594: André Bargull

Entry added December 13, 2016

Image Capture

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A malicious HID device may be able to cause arbitrary code execution

Description: A validation issue existed in the handling of USB image devices. This issue was addressed through improved input validation.

CVE-2016-4690: Andy Davis of NCC Group

ImageIO

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A remote attacker may be able to leak memory

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

CVE-2016-7643: Yangkang (@dnpushme) of Qihoo360 Qex Team

Entry added December 13, 2016

IOHIDFamily

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local application with system privileges may be able to execute arbitrary code with kernel privileges

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

CVE-2016-7591: daybreaker of Minionz

Entry added December 13, 2016

IOKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: An application may be able to read kernel memory

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7657: Keen Lab working with Trend Micro’s Zero Day Initiative

Entry added December 13, 2016

IOKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local user may be able to determine kernel memory layout

Description: A shared memory issue was addressed through improved memory handling.

CVE-2016-7714: Qidan He (@flanker_hqd) from KeenLab working with Trend Micro's Zero Day Initiative

Entry added January 25, 2017

Kernel

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

Description: Multiple memory corruption issues were addressed through improved input validation.

CVE-2016-7606: @cocoahuke, Chen Qin of Topsec Alpha Team (topsec.com)

CVE-2016-7612: Ian Beer of Google Project Zero

Entry added December 13, 2016

Kernel

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: An application may be able to read kernel memory

Description: An insufficient initialization issue was addressed by properly initializing memory returned to user space.

CVE-2016-7607: Brandon Azad

Entry added December 13, 2016

Kernel

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local user may be able to cause a system denial of service

Description: A denial of service issue was addressed through improved memory handling.

CVE-2016-7615: The UK's National Cyber Security Centre (NCSC)

Entry added December 13, 2016

Kernel

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local user may be able to cause an unexpected system termination or arbitrary code execution in the kernel

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

CVE-2016-7621: Ian Beer of Google Project Zero

Entry added December 13, 2016

Kernel

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local user may be able to gain root privileges

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-7637: Ian Beer of Google Project Zero

Entry added December 13, 2016

Kernel

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local application with system privileges may be able to execute arbitrary code with kernel privileges

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

CVE-2016-7644: Ian Beer of Google Project Zero

Entry added December 13, 2016

Kernel

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: An application may be able to cause a denial of service

Description: A denial of service issue was addressed through improved memory handling.

CVE-2016-7647: Lufeng Li of Qihoo 360 Vulcan Team

Entry added May 17, 2017

libarchive

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local attacker may be able to overwrite existing files

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

CVE-2016-7619: an anonymous researcher

Entry added December 13, 2016

Local Authentication

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: The device may not lock the screen after the idle timeout

Description: A logic issue existed in the handling of the idle timer when the Touch ID prompt is shown. This issue was addressed through improved handling of the idle timer.

CVE-2016-7601: an anonymous researcher

Mail

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: An email signed with a revoked certificate may appear valid

Description: S/MIME policy failed to check if a certificate was valid.  This issue was addressed by notifying a user if an email was signed with a revoked certificate.

CVE-2016-4689: an anonymous researcher

Media Player

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A user may be able to view photos and contacts from the lockscreen

Description: A validation issue existed in the handling of media selection. This issue was addressed through improved validation.

CVE-2016-7653

Power Management

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local user may be able to gain root privileges

Description: An issue in mach port name references was addressed through improved validation.

CVE-2016-7661: Ian Beer of Google Project Zero

Entry added December 13, 2016

Profiles

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Opening a maliciously crafted certificate may lead to arbitrary code execution

Description: A memory corruption issue existed in the handling of certificate profiles. This issue was addressed through improved input validation.

CVE-2016-7626: Maksymilian Arciemowicz (cxsecurity.com)

Safari Reader

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Enabling the Safari Reader feature on a maliciously crafted webpage may lead to universal cross site scripting

Description: Multiple validation issues were addressed through improved input sanitization.

CVE-2016-7650: Erling Ellingsen

Entry added December 13, 2016

Security

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: An attacker may be able to exploit weaknesses in the 3DES cryptographic algorithm

Description: 3DES was removed as a default cipher.

CVE-2016-4693: Gaëtan Leurent and Karthikeyan Bhargavan from INRIA Paris

Entry added December 13, 2016

Security

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: An attacker in a privileged network position may be able to cause a denial of service

Description: A validation issue existed in the handling of OCSP responder URLs. This issue was addressed by verifying OCSP revocation status after CA validation and limiting the number of OCSP requests per certificate.

CVE-2016-7636: Maksymilian Arciemowicz (cxsecurity.com)

Entry added December 13, 2016

Security

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Certificates may be unexpectedly evaluated as trusted

Description: A certificate evaluation issue existed in certificate validation. This issue was addressed through additional validation of certificates.

CVE-2016-7662: Apple

Entry added December 13, 2016

SpringBoard

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A person with physical access to an iOS device may be able to unlock the device

Description: In some cases, a counter issue existed in the handling of passcode attempts when resetting the passcode. This was addressed through improved state management.

CVE-2016-4781: an anonymous researcher

SpringBoard

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A person with physical access to an iOS device may be able to keep the device unlocked

Description: A cleanup issue existed in the handling of Handoff with Siri.  This was addressed through improved state management.

CVE-2016-7597: an anonymous researcher

syslog

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: A local user may be able to gain root privileges

Description: An issue in mach port name references was addressed through improved validation.

CVE-2016-7660: Ian Beer of Google Project Zero

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

Description: Multiple memory corruption issues were addressed through improved memory handling.

CVE-2016-4692: Apple

CVE-2016-7635: Apple

CVE-2016-7652: Apple

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Processing maliciously crafted web content may result in the disclosure of process memory

Description: A memory corruption issue was addressed through improved input validation.

CVE-2016-4743: Alan Cutter

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Processing maliciously crafted web content may result in the disclosure of user information

Description: A validation issue was addressed through improved state management.

CVE-2016-7586: Boris Zbarsky

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

Description: Multiple memory corruption issues were addressed through improved state management.

CVE-2016-7587: Adam Klein

CVE-2016-7610: Zheng Huang of the Baidu Security Lab working with Trend Micro's Zero Day Initiative

CVE-2016-7611: an anonymous researcher working with Trend Micro's Zero Day Initiative

CVE-2016-7639: Tongbo Luo of Palo Alto Networks

CVE-2016-7640: Kai Kang of Tencent's Xuanwu Lab (tencent.com)

CVE-2016-7641: Kai Kang of Tencent's Xuanwu Lab (tencent.com)

CVE-2016-7642: Tongbo Luo of Palo Alto Networks

CVE-2016-7645: Kai Kang of Tencent's Xuanwu Lab (tencent.com)

CVE-2016-7646: Kai Kang of Tencent's Xuanwu Lab (tencent.com)

CVE-2016-7648: Kai Kang of Tencent's Xuanwu Lab (tencent.com)

CVE-2016-7649: Kai Kang of Tencent's Xuanwu Lab (tencent.com)

CVE-2016-7654: Keen Lab working with Trend Micro’s Zero Day Initiative

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

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

CVE-2016-7589: Apple

CVE-2016-7656: Keen Lab working with Trend Micro’s Zero Day Initiative

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Processing maliciously crafted web content may compromise user information

Description: An issue existed in handling of JavaScript prompts. This was addressed through improved state management.

CVE-2016-7592: xisigr of Tencent's Xuanwu Lab (tencent.com)

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Processing maliciously crafted web content may result in the disclosure of process memory

Description: An uninitialized memory access issue was addressed through improved memory initialization.

CVE-2016-7598: Samuel Groß

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Processing maliciously crafted web content may result in the disclosure of user information

Description: An issue existed in the handling of HTTP redirects. This issue was addressed through improved cross origin validation.

CVE-2016-7599: Muneaki Nishimura (nishimunea) of Recruit Technologies Co., Ltd.

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Visiting a maliciously crafted website may compromise user information

Description: An issue existed in the handling of blob URLs.  This issue was addressed through improved URL handling.

CVE-2016-7623: xisigr of Tencent's Xuanwu Lab (tencent.com)

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Visiting a maliciously crafted webpage may lead to an unexpected application termination or arbitrary code execution

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

CVE-2016-7632: Jeonghoon Shin

Entry added December 13, 2016

WebKit

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

Impact: Processing maliciously crafted web content may lead to cross site scripting

Description: An issue existed in displaying documents in Safari. This issue was addressed through improved input validation.

CVE-2016-7762: YongShao (Zhiyong Feng from JDSEC 1aq.com‍)

Entry added January 24, 2017

WebSheet

Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later

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

Description: A sandbox escape issue was addressed through additional restrictions.

CVE-2016-7630: Marco Grassi (@marcograss) of KeenLab (@keen_lab) Tencent working with Trend Micro's Zero Day Initiative

Entry added January 25, 2017

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