About the security content of watchOS 2
This document describes the security content of watchOS 2.
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
Apple Pay
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: Some cards may allow a terminal to retrieve limited recent transaction information when making a payment
Description: The transaction log functionality was enabled in certain configurations. This issue was addressed by removing the transaction log functionality.
CVE-ID
CVE-2015-5916
Audio
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: Playing a malicious audio file may lead to an unexpected application termination
Description: A memory corruption issue existed in the handling of audio files. This issue issue was addressed through improved memory handling.
CVE-ID
CVE-2015-5862 : YoungJin Yoon of Information Security Lab. (Adv.: Prof. Taekyoung Kwon), Yonsei University, Seoul, Korea
Certificate Trust Policy
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: Update to the certificate trust policy
Description: The certificate trust policy was updated. The complete list of certificates may be viewed at https://support.apple.com/kb/HT204873.
CFNetwork
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: An attacker with a privileged network position may intercept SSL/TLS connections
Description: A certificate validation issue existed in NSURL when a certificate changed. This issue was addressed through improved certificate validation.
CVE-ID
CVE-2015-5824 : Timothy J. Wood of The Omni Group
CFNetwork
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: Connecting to a malicious web proxy may set malicious cookies for a website
Description: An issue existed in the handling of proxy connect responses. This issue was addressed by removing the set-cookie header while parsing the connect response.
CVE-ID
CVE-2015-5841 : Xiaofeng Zheng of Blue Lotus Team, Tsinghua University
CFNetwork
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: An attacker in a privileged network position can track a user's activity
Description: A cross-domain cookie issue existed in the handling of top level domains. The issue was addressed through improved restrictions of cookie creation.
CVE-ID
CVE-2015-5885 : Xiaofeng Zheng of Blue Lotus Team, Tsinghua University
CFNetwork
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A person with physical access to an iOS device may read cache data from Apple apps
Description: Cache data was encrypted with a key protected only by the hardware UID. This issue was addressed by encrypting the cache data with a key protected by the hardware UID and the user's passcode.
CVE-ID
CVE-2015-5898 : Andreas Kurtz of NESO Security Labs
CoreCrypto
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: An attacker may be able to determine a private key
Description: By observing many signing or decryption attempts, an attacker may have been able to determine the RSA private key. This issue was addressed using improved encryption algorithms.
CoreText
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: Processing a maliciously crafted font file may lead to arbitrary code execution
Description: A memory corruption issue existed in the processing of font files. This issue was addressed through improved input validation.
CVE-ID
CVE-2015-5874 : John Villamil (@day6reak), Yahoo Pentest Team
Data Detectors Engine
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: Processing a maliciously crafted text file may lead to arbitrary code execution
Description: Memory corruption issues existed in the processing of text files. These issues were addressed through improved bounds checking.
CVE-ID
CVE-2015-5829 : M1x7e1 of Safeye Team (www.safeye.org)
Dev Tools
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A malicious application may be able to execute arbitrary code with system privileges
Description: A memory corruption issue existed in dyld. This was addressed through improved memory handling.
CVE-ID
CVE-2015-5876 : beist of grayhash
Disk Images
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local user may be able to execute arbitrary code with system privileges
Description: A memory corruption issue existed in DiskImages. This issue was addressed through improved memory handling.
CVE-ID
CVE-2015-5847 : Filippo Bigarella, Luca Todesco
dyld
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: An application may be able to bypass code signing
Description: An issue existed with validation of the code signature of executables. This issue was addressed through improved bounds checking.
CVE-ID
CVE-2015-5839 : @PanguTeam, TaiG Jailbreak Team
GasGauge
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local user may be able to execute arbitrary code with kernel privileges
Description: Multiple memory corruption issues existed in the kernel. These issues were addressed through improved memory handling.
CVE-ID
CVE-2015-5918 : Apple
CVE-2015-5919 : Apple
ICU
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: Multiple vulnerabilities in ICU
Description: Multiple vulnerabilities existed in ICU versions prior to 53.1.0. These issues were addressed by updating ICU to version 55.1.
CVE-ID
CVE-2014-8146 : Marc Deslauriers
CVE-2014-8147 : Marc Deslauriers
CVE-2015-5922 : Mark Brand of Google Project Zero
IOAcceleratorFamily
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A malicious application may be able to determine kernel memory layout
Description: An issue existed that led to the disclosure of kernel memory content. This issue was addressed through improved bounds checking.
CVE-ID
CVE-2015-5834 : Cererdlong of Alibaba Mobile Security Team
IOAcceleratorFamily
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local user may be able to execute arbitrary code with system privileges
Description: A memory corruption issue existed in IOAcceleratorFamily. This issue was addressed through improved memory handling.
CVE-ID
CVE-2015-5848 : Filippo Bigarella
IOKit
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A malicious application may be able to execute arbitrary code with system privileges
Description: A memory corruption issue existed in the kernel. This issue was addressed through improved memory handling.
CVE-ID
CVE-2015-5844 : Filippo Bigarella
CVE-2015-5845 : Filippo Bigarella
CVE-2015-5846 : Filippo Bigarella
IOMobileFrameBuffer
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local user may be able to execute arbitrary code with system privileges
Description: A memory corruption issue existed in IOMobileFrameBuffer. This issue was addressed through improved memory handling.
CVE-ID
CVE-2015-5843 : Filippo Bigarella
IOStorageFamily
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local attacker may be able to read kernel memory
Description: A memory initialization issue existed in the kernel. This issue was addressed through improved memory handling.
CVE-ID
CVE-2015-5863 : Ilja van Sprundel of IOActive
Kernel
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local user may be able to execute arbitrary code with kernel privileges
Description: A memory corruption issue existed in the kernel. This issue was addressed through improved memory handling.
CVE-ID
CVE-2015-5868 : Cererdlong of Alibaba Mobile Security Team
CVE-2015-5896 : Maxime Villard of m00nbsd
CVE-2015-5903 : CESG
Kernel
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local attacker may control the value of stack cookies
Description: Multiple weaknesses existed in the generation of user space stack cookies. This was addressed through improved generation of stack cookies.
CVE-ID
CVE-2013-3951 : Stefan Esser
Kernel
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local process can modify other processes without entitlement checks
Description: An issue existed where root processes using the processor_set_tasks API were allowed to retrieve the task ports of other processes. This issue was addressed through added entitlement checks.
CVE-ID
CVE-2015-5882 : Pedro Vilaça, working from original research by Ming-chieh Pan and Sung-ting Tsai; Jonathan Levin
Kernel
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: An attacker in a local LAN segment may disable IPv6 routing
Description: An insufficient validation issue existed in handling of IPv6 router advertisements that allowed an attacker to set the hop limit to an arbitrary value. This issue was addressed by enforcing a minimum hop limit.
CVE-ID
CVE-2015-5869 : Dennis Spindel Ljungmark
Kernel
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local user may be able to determine kernel memory layout
Description: An issue existed in XNU that led to the disclosure of kernel memory. This was addressed through improved initialization of kernel memory structures.
CVE-ID
CVE-2015-5842 : beist of grayhash
Kernel
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local user may be able to cause a system denial of service
Description: An issue existed in HFS drive mounting. This was addressed by additional validation checks.
CVE-ID
CVE-2015-5748 : Maxime Villard of m00nbsd
libpthread
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A local user may be able to execute arbitrary code with kernel privileges
Description: A memory corruption issue existed in the kernel. This issue was addressed through improved memory handling.
CVE-ID
CVE-2015-5899 : Lufeng Li of Qihoo 360 Vulcan Team
PluginKit
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: A malicious enterprise application can install extensions before the application has been trusted
Description: An issue existed in the validation of extensions during installation. This was addressed through improved app verification.
CVE-ID
CVE-2015-5837 : Zhaofeng Chen, Hui Xue, and Tao (Lenx) Wei of FireEye, Inc.
removefile
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: Processing malicious data may lead to unexpected application termination
Description: An overflow fault existed in the checkint division routines. This issue was addressed with improved division routines.
CVE-ID
CVE-2015-5840 : an anonymous researcher
SQLite
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: Multiple vulnerabilities in SQLite v3.8.5
Description: Multiple vulnerabilities existed in SQLite v3.8.5. These issues were addressed by updating SQLite to version 3.8.10.2.
CVE-ID
CVE-2015-3414
CVE-2015-3415
CVE-2015-3416
tidy
Available for: Apple Watch Sport, Apple Watch, and Apple Watch Edition
Impact: Visiting a maliciously crafted website may lead to arbitrary code execution
Description: A memory corruption issue existed in Tidy. This issues was addressed through improved memory handling.
CVE-ID
CVE-2015-5522 : Fernando Muñoz of NULLGroup.com
CVE-2015-5523 : Fernando Muñoz of NULLGroup.com
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