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About the security content of iOS 12

Description

# About the security content of iOS 12 This document describes the security content of iOS 12. ## 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) ## iOS 12 Released September 17, 2018 **Accounts** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local app may be able to read a persistent account identifier Description: This issue was addressed with improved entitlements. CVE-2018-4322: Min (Spark) Zheng, Xiaolong Bai of Alibaba Inc. **Auto Unlock** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious application may be able to access local users AppleIDs Description: A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. CVE-2018-4321: Min (Spark) Zheng, Xiaolong Bai of Alibaba Inc. Entry added September 24, 2018 **Bluetooth** Available for: iPhone SE, iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, iPad Mini 4, 12.9-inch iPad Pro 1st generation, 12.9-inch iPad Pro 2nd generation, 10.5-inch iPad Pro, 9.7-inch iPad Pro, iPad 5th generation, and iPod Touch 6th generation Impact: An attacker in a privileged network position may be able to intercept Bluetooth traffic Description: An input validation issue existed in Bluetooth. This issue was addressed with improved input validation. CVE-2018-5383: Lior Neumann and Eli Biham **CFNetwork** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation 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-2018-4126: Bruno Keith (@bkth_) working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 **CoreFoundation** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious application may be able to elevate privileges Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4412: The UK's National Cyber Security Centre (NCSC) Entry added October 30, 2018 **CoreFoundation** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An application may be able to gain elevated privileges Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4414: The UK's National Cyber Security Centre (NCSC) Entry added October 30, 2018 **CoreMedia** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An app may be able to learn information about the current camera view before being granted camera access Description: A permissions issue existed. This issue was addressed with improved permission validation. CVE-2018-4356: an anonymous researcher **CoreText** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing a maliciously crafted text file may lead to arbitrary code execution Description: A use after free issue was addressed with improved memory management. CVE-2018-4347: Vasyl Tkachuk of Readdle Entry added October 30, 2018, updated December 13, 2018 **Crash Reporter** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2018-4333: Brandon Azad Entry added September 24, 2018 **dyld** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious application may be able to modify protected parts of the file system Description: A configuration issue was addressed with additional restrictions. CVE-2018-4433: Vitaly Cheptsov Entry updated January 22, 2019 **Grand Central Dispatch** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation 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-2018-4426: Brandon Azad Entry added October 30, 2018 **Heimdal** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation 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-2018-4331: Brandon Azad CVE-2018-4332: Brandon Azad CVE-2018-4343: Brandon Azad Entry added October 30, 2018 **iBooks** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Parsing a maliciously crafted iBooks file may lead to disclosure of user information Description: A configuration issue was addressed with additional restrictions. CVE-2018-4355: evi1m0 of bilibili security team Entry added October 30, 2018 **IOHIDFamily** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved input validation. CVE-2018-4408: Ian Beer of Google Project Zero Entry added October 30, 2018, updated September 17, 2019 **IOKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious application may be able to break out of its sandbox Description: A memory corruption issue was addressed with improved memory handling. CVE-2018-4341: Ian Beer of Google Project Zero CVE-2018-4354: Ian Beer of Google Project Zero Entry added October 30, 2018 **IOKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed with improved state management. CVE-2018-4383: Apple Entry added October 30, 2018 **IOMobileFrameBuffer** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An application may be able to read restricted memory Description: A validation issue was addressed with improved input sanitization. CVE-2018-4335: Brandon Azad **IOUserEthernet** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation 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-2018-4401: Apple Entry added October 30, 2018 **iTunes Store** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An attacker in a privileged network position may be able to spoof password prompts in the iTunes Store Description: An input validation issue was addressed with improved input validation. CVE-2018-4305: Jerry Decime **Kernel** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An application may be able to read restricted memory Description: An input validation issue existed in the kernel. This issue was addressed with improved input validation. CVE-2018-4363: Ian Beer of Google Project Zero **Kernel** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation 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-2018-4336: Brandon Azad CVE-2018-4337: Ian Beer of Google Project Zero CVE-2018-4340: Mohamed Ghannam (@_simo36) CVE-2018-4344: The UK's National Cyber Security Centre (NCSC) CVE-2018-4425: cc working with Trend Micro's Zero Day Initiative, Juwei Lin (@panicaII) of Trend Micro working with Trend Micro's Zero Day Initiative Entry added September 24, 2018, updated October 30, 2018 **Kernel** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious application may be able to leak sensitive user information Description: An access issue existed with privileged API calls. This issue was addressed with additional restrictions. CVE-2018-4399: Fabiano Anemone (@anoane) Entry added October 30, 2018 **Kernel** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An attacker in a privileged network position may be able to execute arbitrary code Description: A memory corruption issue was addressed with improved validation. CVE-2018-4407: Kevin Backhouse of Semmle Ltd. Entry added October 30, 2018 **mDNSOffloadUserClient** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation 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-2018-4326: an anonymous researcher working with Trend Micro's Zero Day Initiative, Zhuo Liang of Qihoo 360 Nirvan Team Entry added October 30, 2018 **MediaRemote** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A sandboxed process may be able to circumvent sandbox restrictions Description: An access issue was addressed with additional sandbox restrictions. CVE-2018-4310: CodeColorist of Ant-Financial LightYear Labs Entry added October 30, 2018 **Messages** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local user may be able to discover a user’s deleted messages Description: A consistency issue existed in the handling of application snapshots. The issue was addressed with improved handling of message deletions. CVE-2018-4313: 11 anonymous researchers, David Scott, Enes Mert Ulu of Abdullah Mürşide Özünenek Anadolu Lisesi - Ankara/Türkiye, Mehmet Ferit Daştan of Van Yüzüncü Yıl University, Metin Altug Karakaya of Kaliptus Medical Organization, Vinodh Swami of Western Governor's University (WGU) **Notes** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local user may be able to discover a user’s deleted notes Description: A consistency issue existed in the handling of application snapshots. The issue was addressed with improved handling of notes deletions. CVE-2018-4352: Utku Altinkaynak Entry updated October 30, 2018 **Safari** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local user may be able to discover websites a user has visited Description: A consistency issue existed in the handling of application snapshots. The issue was addressed with improved handling of application snapshots. CVE-2018-4313: 11 anonymous researchers, David Scott, Enes Mert Ulu of Abdullah Mürşide Özünenek Anadolu Lisesi - Ankara/Türkiye, Mehmet Ferit Daştan of Van Yüzüncü Yıl University, Metin Altug Karakaya of Kaliptus Medical Organization, Vinodh Swami of Western Governor's University (WGU) **Safari** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A user may be unable to delete browsing history items Description: Clearing a history item may not clear visits with redirect chains. The issue was addressed with improved data deletion. CVE-2018-4329: Hugo S. Diaz (coldpointblue) **Safari** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious website may be able to exfiltrate autofilled data in Safari Description: A logic issue was addressed with improved state management. CVE-2018-4307: Rafay Baloch of Pakistan Telecommunications Authority **SafariViewController** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Visiting a malicious website may lead to address bar spoofing Description: An inconsistent user interface issue was addressed with improved state management. CVE-2018-4362: Jun Kokatsu (@shhnjk) **Security** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A local user may be able to cause a denial of service Description: This issue was addressed with improved checks. CVE-2018-4395: Patrick Wardle of Digita Security Entry added October 30, 2018 **Security** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An attacker may be able to exploit weaknesses in the RC4 cryptographic algorithm Description: This issue was addressed by removing RC4. CVE-2016-1777: Pepi Zawodsky **Status Bar** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A person with physical access to an iOS device may be able to determine the last used app from the lock screen Description: A logic issue was addressed with improved restrictions. CVE-2018-4325: Brian Adeloye **Symptom Framework** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: An application may be able to read restricted memory Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2018-4203: Bruno Keith (@bkth_) working with Trend Micro's Zero Day Initiative Entry added October 30, 2018 **Text** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing a maliciously crafted text file may lead to a denial of service Description: A denial of service issue was addressed with improved validation. CVE-2018-4304: jianan.huang (@Sevck) Entry added October 30, 2018 **WebKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious website may be able to execute scripts in the context of another website Description: A cross-site scripting issue existed in Safari. This issue was addressed with improved URL validation. CVE-2018-4309: an anonymous researcher working with Trend Micro's Zero Day Initiative Entry added September 24, 2018 **WebKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Unexpected interaction causes an ASSERT failure Description: A memory consumption issue was addressed with improved memory handling. CVE-2018-4361: found by OSS-Fuzz CVE-2018-4474: found by OSS-Fuzz Entry added September 24, 2018, updated January 22, 2019 **WebKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Cross-origin SecurityErrors includes the accessed frame’s origin Description: The issue was addressed by removing origin information. CVE-2018-4311: Erling Alf Ellingsen (@steike) Entry added September 24, 2018 **WebKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: Multiple memory corruption issues were addressed with improved memory handling. CVE-2018-4299: Samuel Groβ (saelo) working with Trend Micro's Zero Day Initiative CVE-2018-4323: Ivan Fratric of Google Project Zero CVE-2018-4328: Ivan Fratric of Google Project Zero CVE-2018-4358: @phoenhex team (@bkth_ @5aelo @_niklasb) working with Trend Micro's Zero Day Initiative CVE-2018-4359: Samuel Groß (@5aelo) CVE-2018-4360: William Bowling (@wcbowling) Entry added September 24, 2018, updated October 30, 2018 **WebKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious website may cause unexepected cross-origin behavior Description: A cross-origin issue existed with iframe elements. This was addressed with improved tracking of security origins. CVE-2018-4319: John Pettitt of Google Entry added September 24, 2018 **WebKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved state management. CVE-2018-4316: crixer, Hanming Zhang (@4shitak4) of Qihoo 360 Vulcan Team Entry added September 24, 2018 **WebKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Unexpected interaction causes an ASSERT failure Description: A memory corruption issue was addressed with improved validation. CVE-2018-4191: found by OSS-Fuzz Entry added September 24, 2018 **WebKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: A malicious website may exfiltrate image data cross-origin Description: A cross-site scripting issue existed in Safari. This issue was addressed with improved URL validation. CVE-2018-4345: Jun Kokatsu (@shhnjk) Entry added September 24, 2018, updated December 13, 2018 **WebKit** Available for: iPhone 5s and later, iPad Air and later, and iPod touch 6th generation Impact: Processing maliciously crafted web content may lead to arbitrary code execution Description: A use after free issue was addressed with improved memory management. CVE-2018-4315: Ivan Fratric of Google Project Zero CVE-2018-4197: Ivan Fratric of Google Project Zero CVE-2018-4312: Ivan Fratric of Google Project Zero CVE-2018-4306: Ivan Fratric of Google Project Zero CVE-2018-4318: Ivan Fratric of Google Project Zero CVE-2018-4317: Ivan Fratric of Google Project Zero CVE-2018-4314: Ivan Fratric of Google Project Zero Entry added September 24, 2018 ![](/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/divider.png) ## Additional recognition **APFS** We would like to acknowledge Umang Raghuvanshi for their assistance. Entry added December 13, 2018 **Assets** We would like to acknowledge Brandon Azad for their assistance. **configd** We would like to acknowledge Sabri Haddouche (@pwnsdx) of Wire Swiss GmbH for their assistance. **Core Data** We would like to acknowledge Andreas Kurtz (@aykay) of NESO Security Labs GmbH for their assistance. **CoreSymbolication** We would like to acknowledge Brandon Azad for their assistance. Entry added December 13, 2018 **Exchange ActiveSync** We would like to acknowledge an anonymous researcher, Jesse Thompson of University of Wisconsin-Madison for their assistance. Entry updated January 22, 2019 **Feedback Assistant** We would like to acknowledge Marco Grassi (@marcograss) of KeenLab (@keen_lab) Tencent working with Trend Micro’s Zero Day Initiative for their assistance. **Kernel** We would like to acknowledge Brandon Azad for their assistance. Entry added December 13, 2018 **Mail** We would like to acknowledge Alessandro Avagliano of Rocket Internet SE, Gunnar Diepenbruck, and Zbyszek Żółkiewski for their assistance. **MediaRemote** We would like to acknowledge Brandon Azad for their assistance. **Quick Look** We would like to acknowledge lokihardt of Google Project Zero for their assistance. Entry added December 13, 2018 **Safari** We would like to acknowledge Marcel Manz of SIMM-Comm GmbH and Vlad Galbin for their assistance. **Sandbox Profiles** We would like to acknowledge Tencent Keen Security Lab working with Trend Micro's Zero Day Initiative for their assistance. **Security** We would like to acknowledge Christoph Sinai, Daniel Dudek (@dannysapples) of The Irish Times and Filip Klubička (@lemoncloak) of ADAPT Centre, Dublin Institute of Technology, Horatiu Graur of SoftVision, Istvan Csanady of Shapr3D, Omar Barkawi of ITG Software, Inc., Phil Caleno, Wilson Ding, an anonymous researcher for their assistance. Entry updated June 24, 2019 **SQLite** We would like to acknowledge Andreas Kurtz (@aykay) of NESO Security Labs GmbH for their assistance. **Status Bar** We would like to acknowledge Ju Zhu of Meituan and Moony Li and Lilang Wu of Trend Micro for their assistance. **WebKit** We would like to acknowledge Cary Hartline, Hanming Zhang from 360 Vuclan team, Tencent Keen Security Lab working with Trend Micro's Zero Day Initiative, and Zach Malone of CA Technologies for their assistance. Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. [Contact the vendor](<http://support.apple.com/kb/HT2693>) for additional information. Published Date: September 17, 2019


Affected Software


CPE Name Name Version
ios 12

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