About Apple security updates
For our customers' protection, Apple doesn't disclose, discuss or confirm security issues until an investigation has taken place and patches or releases are available. Recent releases are listed on the Apple security updates page.
For more information about security, see the Apple Product Security page. You can encrypt communications with Apple using the Apple Product Security PGP Key.
Apple security documents reference vulnerabilities by CVE-ID when possible.
iOS 10.2.1
Released 23 January 2017
APNs Server
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 can track a user's activity
Description: A client certificate was sent in plaintext. This issue was addressed through improved certificate handling.
CVE-2017-2383: Matthias Wachs and Quirin Scheitle of Technical University Munich (TUM)
Entry added 28 March 2017
Call History
Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later
Impact: Updates for CallKit call history are sent to iCloud
Description: An issue existed in preventing the uploading of CallKit call history to iCloud. This issue was addressed through improved logic.
CVE-2017-2375: Elcomsoft
Entry added 21 February 2017
Contacts
Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later
Impact: Processing a maliciously crafted contact card may lead to unexpected application termination
Description: An input validation issue existed in the parsing of contact cards. This issue was addressed through improved input validation.
CVE-2017-2368: Vincent Desmurs (vincedes3)
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: A buffer overflow issue was addressed through improved memory handling.
CVE-2017-2370: Ian Beer of Google Project Zero
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: A use after free issue was addressed through improved memory management.
CVE-2017-2360: Ian Beer of Google Project Zero
libarchive
Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later
Impact: Unpacking a maliciously crafted archive may lead to arbitrary code execution
Description: A buffer overflow issue was addressed through improved memory handling.
CVE-2016-8687: Agostino Sarubbo of Gentoo
Unlock with iPhone
Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later
Impact: Apple Watch may unlock when off the user’s wrist
Description: A logic issue was addressed through improved state management.
CVE-2017-2352: Ashley Fernandez of raptAware Pty Ltd
Entry updated 25 January 2017
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 exfiltrate data cross-origin
Description: A prototype access issue was addressed through improved exception handling.
CVE-2017-2350: Gareth Heyes of Portswigger Web Security
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-2017-2354: Neymar of Tencent's Xuanwu Lab (tencent.com) working with Trend Micro's Zero Day Initiative
CVE-2017-2362: Ivan Fratric of Google Project Zero
CVE-2017-2373: Ivan Fratric of Google Project Zero
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 initialisation issue was addressed through improved memory handling.
CVE-2017-2355: Team Pangu and lokihardt at PwnFest 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 input validation.
CVE-2017-2356: Team Pangu and lokihardt at PwnFest 2016
CVE-2017-2369: Ivan Fratric of Google Project Zero
CVE-2017-2366: Kai Kang of Tencent's Xuanwu Lab (tencent.com)
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 exfiltrate data cross-origin
Description: A validation issue existed in the handling of page loading. This issue was addressed through improved logic.
CVE-2017-2363: lokihardt of Google Project Zero
CVE-2017-2364: lokihardt of Google Project Zero
WebKit
Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later
Impact: A malicious website can open popups
Description: An issue existed in the handling of blocking popups. This was addressed through improved input validation.
CVE-2017-2371: lokihardt of Google Project Zero
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 exfiltrate data cross-origin
Description: A validation issue existed in the handling of variable handling. This issue was addressed through improved validation.
CVE-2017-2365: lokihardt of Google Project Zero
Wi-Fi
Available for: iPhone 5 and later, iPad 4th generation and later, iPod touch 6th generation and later
Impact: An activation-locked device can be manipulated to briefly present the home screen
Description: An issue existed with handling user input that caused a device to present the home screen even when activation locked. This was addressed through improved input validation.
CVE-2017-2351: Hemanth Joseph, Sriram (@Sri_Hxor) of Primefort Pvt. Ltd., Mohamd Imran
Entry updated 21 February 2017
Additional recognition
WebKit hardening
We would like to acknowledge Ben Gras, Kaveh Razavi, Erik Bosman, Herbert Bos and Cristiano Giuffrida of the vusec group at Vrije Universiteit Amsterdam for their assistance.