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About the security content of iOS 13.6 and iPadOS 13.6

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# About the security content of iOS 13.6 and iPadOS 13.6 This document describes the security content of iOS 13.6 and iPadOS 13.6. ## 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. Apple security documents reference vulnerabilities by [CVE-ID](<http://cve.mitre.org/about/>) when possible. For more information about security, see the [Apple Product Security](<https://support.apple.com/kb/HT201220>) page. ## iOS 13.6 and iPadOS 13.6 Released July 15, 2020 **Audio** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted audio file may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-9888: JunDong Xie and Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-9890: JunDong Xie and Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-9891: JunDong Xie and Xingwei Lin of Ant-Financial Light-Year Security Lab Entry updated August 5, 2020 **Audio** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted audio file may lead to arbitrary code execution Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2020-9884: Yu Zhou(@yuzhou6666) of 小鸡帮 working with Trend Micro Zero Day Initiative CVE-2020-9889: Anonymous working with Trend Micro’s Zero Day Initiative, JunDong Xie and Xingwei Lin of Ant-Financial Light-Year Security Lab Entry updated August 5, 2020 **AVEVideoEncoder** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory corruption issue was addressed by removing the vulnerable code. CVE-2020-9907: 08Tc3wBB working with ZecOps Entry added July 24, 2020, updated August 31, 2020 **Bluetooth** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A remote attacker may cause an unexpected application termination Description: A denial of service issue was addressed with improved input validation. CVE-2020-9931: Dennis Heinze (@ttdennis) of TU Darmstadt, Secure Mobile Networking Lab **CoreFoundation** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A local user may be able to view sensitive user information Description: An issue existed in the handling of environment variables. This issue was addressed with improved validation. CVE-2020-9934: Matt Shockley (linkedin.com/in/shocktop) Entry updated August 5, 2020 **CoreGraphics** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: A buffer overflow issue was addressed with improved memory handling. CVE-2020-9883: an anonymous researcher, Mickey Jin of Trend Micro Entry added July 24, 2020, updated December 15, 2020 **Crash Reporter** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious application may be able to break out of its sandbox Description: A memory corruption issue was addressed by removing the vulnerable code. CVE-2020-9865: Zhuo Liang of Qihoo 360 Vulcan Team working with 360 BugCloud **Crash Reporter** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A local attacker may be able to elevate their privileges Description: An issue existed within the path validation logic for symlinks. This issue was addressed with improved path sanitization. CVE-2020-9900: Cees Elzinga, Zhongcheng Li (CK01) from Zero-dayits Team of Legendsec at Qi'anxin Group Entry added August 5, 2020, updated December 17, 2021 **FontParser** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted font file may lead to arbitrary code execution Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2020-9980: Xingwei Lin of Ant Security Light-Year Lab Entry added September 21, 2020, updated October 19, 2020 **GeoServices** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious application may be able to read sensitive location information Description: An authorization issue was addressed with improved state management. CVE-2020-9933: Min (Spark) Zheng and Xiaolong Bai of Alibaba Inc. **iAP** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An attacker in a privileged network position may be able to perform denial of service attack using malformed Bluetooth packets Description: An input validation issue existed in Bluetooth. This issue was addressed with improved input validation. CVE-2020-9914: Andy Davis of NCC Group Entry updated July 24, 2020 **ImageIO** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch 7th generation Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: A memory corruption issue was addressed with improved input validation. CVE-2020-27933: Xingwei Lin of Ant-Financial Light-Year Security Lab Entry added March 16, 2021 **ImageIO** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Multiple buffer overflow issues existed in openEXR Description: Multiple issues in openEXR were addressed with improved checks. CVE-2020-11758: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-11759: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-11760: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-11761: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-11762: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-11763: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-11764: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-11765: Xingwei Lin of Ant-Financial Light-Year Security Lab Entry added September 8, 2020 **ImageIO** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2020-9871: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-9872: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-9874: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-9879: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-9936: Mickey Jin of Trend Micro CVE-2020-9937: Xingwei Lin of Ant-Financial Light-Year Security Lab Entry updated August 5, 2020 **ImageIO** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: A buffer overflow issue was addressed with improved memory handling. CVE-2020-9919: Mickey Jin of Trend Micro Entry added July 24, 2020 **ImageIO** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2020-9876: Mickey Jin of Trend Micro Entry added July 24, 2020 **ImageIO** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2020-9873: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-9938: Xingwei Lin of Ant-Financial Light-Year Security Lab CVE-2020-9984: an anonymous researcher Entry added July 24, 2020, updated September 21, 2020 **ImageIO** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-9877: Xingwei Lin of Ant-Financial Light-Year Security Lab Entry added August 5, 2020 **ImageIO** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted image may lead to arbitrary code execution Description: An integer overflow was addressed through improved input validation. CVE-2020-9875: Mickey Jin of Trend Micro Entry added August 5, 2020 **Kernel** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious application may be able to execute arbitrary code with system privileges Description: A memory corruption issue was addressed with improved memory handling. CVE-2020-9923: Proteas **Kernel** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An attacker in a privileged network position may be able to inject into active connections within a VPN tunnel Description: A routing issue was addressed with improved restrictions. CVE-2019-14899: William J. Tolley, Beau Kujath, and Jedidiah R. Crandall **Kernel** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-9909: Brandon Azad of Google Project Zero **Kernel** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th 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-2020-9904: Tielei Wang of Pangu Lab Entry added July 24, 2020 **Kernel** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An application may be able to execute arbitrary code with kernel privileges Description: A memory initialization issue was addressed with improved memory handling. CVE-2020-9863: Xinru Chi of Pangu Lab Entry updated August 5, 2020 **Kernel** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious application may be able to execute arbitrary code with system privileges Description: Multiple memory corruption issues were addressed with improved state management. CVE-2020-9892: Andy Nguyen of Google Entry added July 24, 2020 **Kernel** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious application may be able to determine kernel memory layout Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2020-9902: Xinru Chi and Tielei Wang of Pangu Lab Entry added August 5, 2020 **Kernel** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A remote attacker may be able to cause a denial of service Description: A buffer overflow was addressed with improved bounds checking. CVE-2020-9905: Raz Mashat (@RazMashat) of ZecOps Entry added August 5, 2020 **libxml2** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch 7th generation 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-2020-9926: Found by OSS-Fuzz Entry added March 16, 2021 **Mail** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A remote attacker may be able to cause a denial of service Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2019-19906 Entry added July 24, 2020, updated September 8, 2020 **Mail** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious mail server may overwrite arbitrary mail files Description: A path handling issue was addressed with improved validation. CVE-2020-9920: YongYue Wang AKA BigChan of Hillstone Networks AF Team Entry added July 24, 2020 **Messages** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A user that is removed from an iMessage group could rejoin the group Description: An issue existed in the handling of iMessage tapbacks. The issue was resolved with additional verification. CVE-2020-9885: an anonymous researcher, Suryansh Mansharamani of WWP High School North (medium.com/@suryanshmansha) **Model I/O** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution Description: A buffer overflow issue was addressed with improved memory handling. CVE-2020-9878: Aleksandar Nikolic of Cisco Talos, Holger Fuhrmannek of Deutsche Telekom Security CVE-2020-9881: Holger Fuhrmannek of Deutsche Telekom Security CVE-2020-9882: Holger Fuhrmannek of Deutsche Telekom Security CVE-2020-9940: Holger Fuhrmannek of Deutsche Telekom Security CVE-2020-9985: Holger Fuhrmannek of Deutsche Telekom Security Entry updated September 21, 2020 **Model I/O** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution Description: A buffer overflow was addressed with improved bounds checking. CVE-2020-9880: Holger Fuhrmannek of Deutsche Telekom Security Entry added September 21, 2020 **Safari Login AutoFill** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious attacker may cause Safari to suggest a password for the wrong domain Description: A logic issue was addressed with improved restrictions. CVE-2020-9903: Nikhil Mittal (@c0d3G33k) of Payatu Labs (payatu.com) **Safari Reader** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An issue in Safari Reader mode may allow a remote attacker to bypass the Same Origin Policy Description: A logic issue was addressed with improved restrictions. CVE-2020-9911: Nikhil Mittal (@c0d3G33k) of Payatu Labs (payatu.com) **Security** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An attacker may have been able to impersonate a trusted website using shared key material for an administrator added certificate Description: A certificate validation issue existed when processing administrator added certificates. This issue was addressed with improved certificate validation. CVE-2020-9868: Brian Wolff of Asana Entry added July 24, 2020 **sysdiagnose** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A local attacker may be able to elevate their privileges Description: An issue existed within the path validation logic for symlinks. This issue was addressed with improved path sanitization. CVE-2020-9901: Tim Michaud (@TimGMichaud) of Leviathan, Zhongcheng Li (CK01) from Zero-dayits Team of Legendsec at Qi'anxin Group Entry added August 5, 2020, updated August 31, 2020 **WebDAV** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A sandboxed process may be able to circumvent sandbox restrictions Description: This issue was addressed with improved entitlements. CVE-2020-9898: Sreejith Krishnan R (@skr0x1C0) Entry added September 8, 2020 **WebKit** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2020-9894: 0011 working with Trend Micro Zero Day Initiative **WebKit** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing maliciously crafted web content may prevent Content Security Policy from being enforced Description: An access issue existed in Content Security Policy. This issue was addressed with improved access restrictions. CVE-2020-9915: Ayoub AIT ELMOKHTAR of Noon Entry updated July 24, 2020 **WebKit** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution Description: A use after free issue was addressed with improved memory management. CVE-2020-9893: 0011 working with Trend Micro Zero Day Initiative CVE-2020-9895: Wen Xu of SSLab, Georgia Tech **WebKit** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Processing maliciously crafted web content may lead to universal cross site scripting Description: A logic issue was addressed with improved state management. CVE-2020-9925: an anonymous researcher **WebKit** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication Description: Multiple issues were addressed with improved logic. CVE-2020-9910: Samuel Groß of Google Project Zero **WebKit Page Loading** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious attacker may be able to conceal the destination of a URL Description: A URL Unicode encoding issue was addressed with improved state management. CVE-2020-9916: Rakesh Mane (@RakeshMane10) **WebKit Web Inspector** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Copying a URL from Web Inspector may lead to command injection Description: A command injection issue existed in Web Inspector. This issue was addressed with improved escaping. CVE-2020-9862: Ophir Lojkine (@lovasoa) **WebRTC** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An attacker in a privileged network position may be able to cause heap corruption via a crafted SCTP stream Description: A memory corruption issue was addressed with improved state management. CVE-2020-6514: natashenka of Google Project Zero Entry added September 21, 2020 **Wi-Fi** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory Description: An out-of-bounds read was addressed with improved input validation. CVE-2020-9918: Jianjun Dai of 360 Alpha Lab working with 360 BugCloud (bugcloud.360.cn) **Wi-Fi** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory Description: A memory corruption issue was addressed with improved input validation. CVE-2020-9906: Ian Beer of Google Project Zero Entry added July 24, 2020 **Wi-Fi** Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A remote attacker may be able to cause a denial of service Description: This issue was addressed with improved checks. CVE-2020-9917: Pradeep Deokate of Harman, Stefan Böhrer at Daimler AG, proofnet.de Entry updated July 24, 2020 ## Additional recognition **Bluetooth** We would like to acknowledge Andy Davis of NCC Group for their assistance. **CoreFoundation** We would like to acknowledge Bobby Pelletier for their assistance. Entry added September 8, 2020 **ImageIO** We would like to acknowledge Xingwei Lin of Ant-Financial Light-Year Security Lab for their assistance. Entry added September 21, 2020 **Kernel** We would like to acknowledge Brandon Azad of Google Project Zero for their assistance. **USB Audio** We would like to acknowledge Andy Davis of NCC Group 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: November 03, 2023


Affected Software


CPE Name Name Version
ios 13.6
ipados 13.6

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