About the security content of watchOS 2.2.1

This document describes the security content of watchOS 2.2.1.

For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation has occurred and any necessary patches or releases are available. To learn more about Apple Product Security, see the Apple Product Security website.

For information about the Apple Product Security PGP Key, see How to use the Apple Product Security PGP Key.

Where possible, CVE IDs are used to reference the vulnerabilities for further information.

To learn about other security updates, see Apple security updates.

watchOS 2.2.1

  • CommonCrypto

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

    Impact: A malicious application may be able to leak sensitive user information

    Description: An issue existed in the handling of return values in CCCrypt. This issue was addressed through improved key length management.

    CVE-ID

    CVE-2016-1802 : Klaus Rodewig

  • CoreCapture

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

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

    CVE-ID

    CVE-2016-1803 : Ian Beer of Google Project Zero, daybreaker working with Trend Micro’s Zero Day Initiative

  • Disk Images

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

    Impact: A local attacker may be able to read kernel memory

    Description: A race condition was addressed through improved locking.

    CVE-ID

    CVE-2016-1807 : Ian Beer of Google Project Zero

  • Disk Images

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

    Description: A memory corruption issue existed in the parsing of disk images. This issue was addressed through improved memory handling.

    CVE-ID

    CVE-2016-1808 : Moony Li (@Flyic) and Jack Tang (@jacktang310) of Trend Micro

  • ImageIO

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

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

    CVE-ID

    CVE-2016-1811 : Lander Brandt (@landaire)

  • IOAcceleratorFamily

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

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

    CVE-ID

    CVE-2016-1817 : Moony Li (@Flyic) and Jack Tang (@jacktang310) of Trend Micro working with Trend Micro's Zero Day Initiative

    CVE-2016-1818: Juwei Lin of TrendMicro, sweetchip@GRAYHASH working with Trend Micro’s Zero Day Initiative

    Entry updated December 13, 2016

  • IOAcceleratorFamily

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

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

    CVE-ID

    CVE-2016-1819 : Ian Beer of Google Project Zero

  • IOAcceleratorFamily

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

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

    CVE-ID

    CVE-2016-1813 : Ian Beer of Google Project Zero

  • IOHIDFamily

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

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

    CVE-ID

    CVE-2016-1823 : Ian Beer of Google Project Zero

    CVE-2016-1824 : Marco Grassi (@marcograss) of KeenLab (@keen_lab), Tencent

  • Kernel

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

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

    CVE-ID

    CVE-2016-1827 : Brandon Azad

    CVE-2016-1828 : Brandon Azad

    CVE-2016-1829 : CESG

    CVE-2016-1830 : Brandon Azad

  • libc

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

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

    CVE-ID

    CVE-2016-1832 : Karl Williamson

  • libxml2

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

    Impact: Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution

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

    CVE-ID

    CVE-2016-1833 : Mateusz Jurczyk

    CVE-2016-1834 : Apple

    CVE-2016-1836 : Wei Lei and Liu Yang of Nanyang Technological University

    CVE-2016-1837 : Wei Lei and Liu Yang of Nanyang Technological University

    CVE-2016-1838 : Mateusz Jurczyk

    CVE-2016-1839 : Mateusz Jurczyk

    CVE-2016-1840 : Kostya Serebryany

  • libxslt

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

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

    CVE-ID

    CVE-2016-1841 : Sebastian Apelt

  • MapKit

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

    Description: Shared links were sent with HTTP rather than HTTPS. This was addressed by enabling HTTPS for shared links.

    CVE-ID

    CVE-2016-1842 : Richard Shupak (https://www.linkedin.com/in/rshupak)

  • OpenGL

    Available for: Apple Watch Sport, Apple Watch, Apple Watch Edition, and Apple Watch Hermes

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

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

    CVE-ID

    CVE-2016-1847 : Tongbo Luo and Bo Qu of Palo Alto Networks

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