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About the security content of watchOS 4 - Apple Support

Description

## 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](<https://support.apple.com/kb/HT201222>) page. For more information about security, see the [Apple Product Security](<https://support.apple.com/kb/HT201220>) page. You can encrypt communications with Apple using the [Apple Product Security PGP Key](<https://support.apple.com/kb/HT201601>). Apple security documents reference vulnerabilities by [CVE-ID](<http://cve.mitre.org/about/>) when possible. ![](/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png) ## watchOS 4 Released September 19, 2017 **802.1X** Available for: All Apple Watch models Impact: An attacker may be able to exploit weaknesses in TLS 1.0 Description: A protocol security issue was addressed by enabling TLS 1.1 and TLS 1.2. CVE-2017-13832: Doug Wussler of Florida State University Entry added October 31, 2017, updated November 10, 2017 **CFNetwork** Available for: All Apple Watch models Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-13829: Niklas Baumstark and Samuel Gro working with Trend Micro's Zero Day Initiative CVE-2017-13833: Niklas Baumstark and Samuel Gro working with Trend Micro's Zero Day Initiative Entry added November 10, 2017 **CFNetwork Proxies** Available for: All Apple Watch models Impact: An attacker in a privileged network position may be able to cause a denial of service Description: Multiple denial of service issues were addressed through improved memory handling. CVE-2017-7083: Abhinav Bansal of Zscaler Inc. Entry added September 25, 2017 **CFString** Available for: All Apple Watch models Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2017-13821: Australian Cyber Security Centre – Australian Signals Directorate Entry added October 31, 2017 **CoreAudio** Available for: All Apple Watch models Impact: An application may be able to read restricted memory Description: An out-of-bounds read was addressed by updating to Opus version 1.1.4. CVE-2017-0381: V.E.O (@VYSEa) of Mobile Threat Research Team, Trend Micro Entry added September 25, 2017 **CoreText** Available for: All Apple Watch models Impact: Processing a maliciously crafted font file may lead to arbitrary code execution Description: A memory consumption issue was addressed with improved memory handling. CVE-2017-13825: Australian Cyber Security Centre – Australian Signals Directorate Entry added October 31, 2017, uodated November 16, 2018 **file** Available for: All Apple Watch models Impact: Multiple issues in file Description: Multiple issues were addressed by updating to version 5.31. CVE-2017-13815: found by OSS-Fuzz Entry added October 31, 2017, updated October 18, 2018 **Fonts** Available for: All Apple Watch models Impact: Rendering untrusted text may lead to spoofing Description: An inconsistent user interface issue was addressed with improved state management. CVE-2017-13828: Leonard Grey and Robert Sesek of Google Chrome Entry added October 31, 2017, updated November 10, 2017 **HFS** Available for: All Apple Watch models Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-13830: Sergej Schumilo of Ruhr-University Bochum Entry added October 31, 2017 **ImageIO** Available for: All Apple Watch models Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved input validation. CVE-2017-13814: Australian Cyber Security Centre – Australian Signals Directorate Entry added October 31, 2017, updated November 16, 2018 **ImageIO** Available for: All Apple Watch models Impact: Processing a maliciously crafted image may lead to a denial of service Description: A memory corruption issue was addressed with improved input validation. CVE-2017-13831: Glen Carmichael Entry added October 31, 2017, updated April 3, 2019 **Kernel** Available for: All Apple Watch models Impact: A local user may be able to read kernel memory Description: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed through improved input validation. CVE-2017-13817: Maxime Villard (m00nbsd) Entry added October 31, 2017 **Kernel** Available for: All Apple Watch models Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2017-13818: The UK's National Cyber Security Centre (NCSC) CVE-2017-13836: Vlad Tsyrklevich CVE-2017-13841: Vlad Tsyrklevich CVE-2017-13840: Vlad Tsyrklevich CVE-2017-13842: Vlad Tsyrklevich CVE-2017-13782: an anonymous researcher Entry added October 31, 2017, updated June 18, 2018 **Kernel** Available for: All Apple Watch models Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-13843: an anonymous researcher, an anonymous researcher Entry added October 31, 2017 **Kernel** Available for: All Apple Watch models Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-7114: Alex Plaskett of MWR InfoSecurity Entry added September 25, 2017 **Kernel** Available for: All Apple Watch models Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-13854: shrek_wzw of Qihoo 360 Nirvan Team Entry added November 2, 2017 **Kernel** Available for: All Apple Watch models Impact: Processing a malformed mach binary may lead to arbitrary code execution Description: A memory corruption issue was addressed through improved validation. CVE-2017-13834: Maxime Villard (m00nbsd) Entry added November 10, 2017 **Kernel** Available for: All Apple Watch models Impact: A malicious application may be able to learn information about the presence and operation of other applications on the device. Description: An application was able to access network activity information maintained by the operating system unrestricted. This issue was addressed by reducing the information available to third party applications. CVE-2017-13873: Xiaokuan Zhang and Yinqian Zhang of The Ohio State University, Xueqiang Wang and XiaoFeng Wang of Indiana University Bloomington, and Xiaolong Bai of Tsinghua University Entry added November 30, 2017 **libarchive** Available for: All Apple Watch models Impact: Unpacking a maliciously crafted archive may lead to arbitrary code execution Description: A buffer overflow issue was addressed through improved memory handling. CVE-2017-13813: found by OSS-Fuzz CVE-2017-13816: found by OSS-Fuzz Entry added October 31, 2017 **libarchive** Available for: All Apple Watch models Impact: Unpacking a maliciously crafted archive may lead to arbitrary code execution Description: Multiple memory corruption issues existed in libarchive. These issues were addressed through improved input validation. CVE-2017-13812: found by OSS-Fuzz Entry added October 31, 2017 **libc** Available for: All Apple Watch models Impact: A remote attacker may be able to cause a denial-of-service Description: A resource exhaustion issue in glob() was addressed through an improved algorithm. CVE-2017-7086: Russ Cox of Google Entry added September 25, 2017 **libc** Available for: All Apple Watch models Impact: An application may be able to cause a denial of service Description: A memory consumption issue was addressed through improved memory handling. CVE-2017-1000373 Entry added September 25, 2017 **libexpat** Available for: All Apple Watch models Impact: Multiple issues in expat Description: Multiple issues were addressed by updating to version 2.2.1 CVE-2016-9063 CVE-2017-9233 Entry added September 25, 2017 **libxml2** Available for: All Apple Watch models Impact: Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution Description: A use after free issue was addressed with improved memory management. CVE-2017-9049: Wei Lei and Liu Yang - Nanyang Technological University in Singapore Entry added October 18, 2018 **libxml2** Available for: All Apple Watch models Impact: Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution Description: A buffer overflow issue was addressed with improved memory handling. CVE-2017-7376: an anonymous researcher CVE-2017-5130: an anonymous researcher Entry added October 18, 2018 **libxml2** Available for: All Apple Watch models Impact: Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution Description: A memory corruption issue was addressed with improved input validation. CVE-2017-9050: Mateusz Jurczyk (j00ru) of Google Project Zero Entry added October 18, 2018 **libxml2** Available for: All Apple Watch models Impact: Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution Description: A null pointer dereference was addressed with improved validation. CVE-2018-4302: Gustavo Grieco Entry added October 18, 2018 **Security** Available for: All Apple Watch models Impact: A revoked certificate may be trusted Description: A certificate validation issue existed in the handling of revocation data. This issue was addressed through improved validation. CVE-2017-7080: an anonymous researcher, Sven Driemecker of adesso mobile solutions gmbh, an anonymous researcher, Rune Darrud (@theflyingcorpse) of Bærum kommune Entry added September 25, 2017 **SQLite** Available for: All Apple Watch models Impact: Multiple issues in SQLite Description: Multiple issues were addressed by updating to version 3.19.3. CVE-2017-10989: found by OSS-Fuzz CVE-2017-7128: found by OSS-Fuzz CVE-2017-7129: found by OSS-Fuzz CVE-2017-7130: found by OSS-Fuzz Entry added September 25, 2017 **SQLite** Available for: All Apple Watch models Impact: An application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-7127: an anonymous researcher Entry added September 25, 2017 **Wi-Fi** Available for: All Apple Watch models Impact: Malicious code executing on the Wi-Fi chip may be able to execute arbitrary code with kernel privileges on the application processor Description: A memory corruption issue was addressed with improved memory handling. CVE-2017-7103: Gal Beniamini of Google Project Zero CVE-2017-7105: Gal Beniamini of Google Project Zero CVE-2017-7108: Gal Beniamini of Google Project Zero CVE-2017-7110: Gal Beniamini of Google Project Zero CVE-2017-7112: Gal Beniamini of Google Project Zero **Wi-Fi** Available for: All Apple Watch models Impact: Malicious code executing on the Wi-Fi chip may be able to read restricted kernel memory Description: A validation issue was addressed with improved input sanitization. CVE-2017-7116: Gal Beniamini of Google Project Zero **zlib** Available for: All Apple Watch models Impact: Multiple issues in zlib Description: Multiple issues were addressed by updating to version 1.2.11. CVE-2016-9840 CVE-2016-9841 CVE-2016-9842 CVE-2016-9843 Entry added September 25, 2017 ![](/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png) ## Additional recognition **Security** We would like to acknowledge Abhinav Bansal of Zscaler, Inc. for their assistance.


Affected Software


CPE Name Name Version
watchos 4

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