var-202104-0600
Vulnerability from variot

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. Interaction with the ModelIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.The specific flaw exists within the ModelIO framework. Crafted data in a USD file can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Apple macOS is a set of dedicated operating systems developed by Apple Corporation for Mac computers. An input validation error vulnerability exists in the Apple IO Model, which originates from the handling of untrusted input in the Model I/O component of macOS. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

APPLE-SA-2021-02-01-2 Additional information for APPLE-SA-2021-01-26-1 iOS 14.4 and iPadOS 14.4

iOS 14.4 and iPadOS 14.4 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212146.

Analytics 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-2021-1761: Cees Elzinga Entry added February 1, 2021

APFS 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 read arbitrary files Description: The issue was addressed with improved permissions logic. CVE-2021-1797: Thomas Tempelmann Entry added February 1, 2021

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 be able to cause arbitrary code execution Description: An out-of-bounds read was addressed with improved input validation. CVE-2021-1794: Jianjun Dai of 360 Alpha Lab Entry added February 1, 2021

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 be able to cause arbitrary code execution Description: An out-of-bounds write was addressed with improved input validation. CVE-2021-1795: Jianjun Dai of 360 Alpha Lab CVE-2021-1796: Jianjun Dai of 360 Alpha Lab Entry added February 1, 2021

Bluetooth 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 position may be able to perform a denial of service attack Description: A memory initialization issue was addressed with improved memory handling. CVE-2021-1780: Jianjun Dai of 360 Alpha Lab Entry added February 1, 2021

CoreAnimation 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 could execute arbitrary code leading to compromise of user information Description: A memory corruption issue was addressed with improved state management. CVE-2021-1760: @S0rryMybad of 360 Vulcan Team Entry added February 1, 2021

CoreAudio 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 code execution Description: An out-of-bounds write was addressed with improved input validation. CVE-2021-1747: JunDong Xie of Ant Security Light-Year Lab Entry added February 1, 2021

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 font file may lead to arbitrary code execution Description: An out-of-bounds write issue was addressed with improved bounds checking. CVE-2021-1776: Ivan Fratric of Google Project Zero Entry added February 1, 2021

CoreMedia 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-2021-1759: Hou JingYi (@hjy79425575) of Qihoo 360 CERT Entry added February 1, 2021

CoreText 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 text file may lead to arbitrary code execution Description: A stack overflow was addressed with improved input validation. CVE-2021-1772: Mickey Jin of Trend Micro Entry added February 1, 2021

CoreText 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 arbitrary code execution Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-1792: Mickey Jin & Junzhi Lu of Trend Micro Entry added February 1, 2021

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 user may be able to create or modify system files Description: A logic issue was addressed with improved state management. CVE-2021-1786: Csaba Fitzl (@theevilbit) of Offensive Security Entry added February 1, 2021

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: Multiple issues were addressed with improved logic. CVE-2021-1787: James Hutchins Entry added February 1, 2021

FairPlay 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 disclose kernel memory Description: An out-of-bounds read issue existed that led to the disclosure of kernel memory. CVE-2021-1791: Junzhi Lu (@pwn0rz), Qi Sun & Mickey Jin of Trend Micro Entry added February 1, 2021

FontParser 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 arbitrary code execution Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-1758: Peter Nguyen of STAR Labs Entry added February 1, 2021

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 a denial of service Description: A logic issue was addressed with improved state management. CVE-2021-1773: Xingwei Lin of Ant Security Light-Year Lab Entry added February 1, 2021

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 a denial of service Description: This issue was addressed with improved checks. CVE-2021-1766: Danny Rosseau of Carve Systems Entry added February 1, 2021

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-2021-1785: Xingwei Lin of Ant Security Light-Year Lab Entry added February 1, 2021

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 was addressed with improved input validation. CVE-2021-1744: Xingwei Lin of Ant Security Light-Year Lab Entry added February 1, 2021

ImageIO 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 logic issue was addressed with improved state management. CVE-2021-1818: Xingwei Lin from Ant-Financial Light-Year Security Lab Entry added February 1, 2021

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: This issue was addressed with improved checks. CVE-2021-1746: Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin & Qi Sun of Trend Micro CVE-2021-1793: Xingwei Lin of Ant Security Light-Year Lab Entry added February 1, 2021

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-2021-1741: Xingwei Lin of Ant Security Light-Year Lab CVE-2021-1743: Xingwei Lin of Ant Security Light-Year Lab, and Mickey Jin & Junzhi Lu of Trend Micro Entry added February 1, 2021

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 a denial of service Description: An out-of-bounds read issue existed in the curl. CVE-2021-1778: Xingwei Lin of Ant Security Light-Year Lab Entry added February 1, 2021

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 access issue was addressed with improved memory management. CVE-2021-1783: Xingwei Lin of Ant Security Light-Year Lab Entry added February 1, 2021

IOSkywalkFamily 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 out-of-bounds read was addressed with improved bounds checking. CVE-2021-1757: Proteas and Pan ZhenPeng (@Peterpan0927) of Alibaba Security Entry added February 1, 2021

iTunes Store 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 URL may lead to arbitrary javascript code execution Description: A validation issue was addressed with improved input sanitization. CVE-2021-1748: CodeColorist of Ant-Financial Light-Year Labs Entry added February 1, 2021

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 use after free issue was addressed with improved memory management. CVE-2021-1764: Maxime Villard (@m00nbsd) Entry added February 1, 2021

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: Multiple issues were addressed with improved logic. CVE-2021-1750: @0xalsr Entry added February 1, 2021

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 elevate privileges. Apple is aware of a report that this issue may have been actively exploited. CVE-2021-1782: an anonymous researcher

Messages 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 leak sensitive user information Description: A privacy issue existed in the handling of Contact cards. CVE-2021-1781: Csaba Fitzl (@theevilbit) of Offensive Security Entry added February 1, 2021

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-2021-1763: Mickey Jin of Trend Micro Entry added February 1, 2021

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: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-1768: Mickey Jin & Junzhi Lu of Trend Micro Entry added February 1, 2021

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: An out-of-bounds read was addressed with improved input validation. CVE-2021-1745: Mickey Jin & Junzhi Lu of Trend Micro Entry added February 1, 2021

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: An out-of-bounds write was addressed with improved input validation. CVE-2021-1762: Mickey Jin of Trend Micro Entry added February 1, 2021

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 image may lead to heap corruption Description: This issue was addressed with improved checks. CVE-2021-1767: Mickey Jin & Junzhi Lu of Trend Micro Entry added February 1, 2021

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 image may lead to arbitrary code execution Description: An out-of-bounds read was addressed with improved bounds checking. CVE-2021-1753: Mickey Jin of Trend Micro Entry added February 1, 2021

Phone Keypad Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: An attacker with physical access to a device may be able to see private contact information Description: A lock screen issue allowed access to contacts on a locked device. CVE-2021-1756: Ryan Pickren (ryanpickren.com) Entry added February 1, 2021

Swift 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: A logic issue was addressed with improved validation. CVE-2021-1769: CodeColorist of Ant-Financial Light-Year Labs Entry added February 1, 2021

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 arbitrary code execution Description: A use after free issue was addressed with improved memory management. CVE-2021-1788: Francisco Alonso (@revskills) Entry added February 1, 2021

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 arbitrary code execution Description: A type confusion issue was addressed with improved state handling. CVE-2021-1789: @S0rryMybad of 360 Vulcan Team Entry added February 1, 2021

WebKit Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: Maliciously crafted web content may violate iframe sandboxing policy Description: This issue was addressed with improved iframe sandbox enforcement. CVE-2021-1801: Eliya Stein of Confiant Entry added February 1, 2021

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 arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited. CVE-2021-1871: an anonymous researcher CVE-2021-1870: an anonymous researcher

WebRTC Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation) Impact: A malicious website may be able to access restricted ports on arbitrary servers Description: A port redirection issue was addressed with additional port validation. CVE-2021-1799: Gregory Vishnepolsky & Ben Seri of Armis Security, and Samy Kamkar Entry added February 1, 2021

Additional recognition

iTunes Store We would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance. Entry added February 1, 2021

Kernel We would like to acknowledge Junzhi Lu (@pwn0rz), Mickey Jin & Jesse Change of Trend Micro for their assistance. Entry added February 1, 2021

libpthread We would like to acknowledge CodeColorist of Ant-Financial Light-Year Labs for their assistance. Entry added February 1, 2021

Mail We would like to acknowledge Yiğit Can YILMAZ (@yilmazcanyigit) and an anonymous researcher for their assistance. Entry added February 1, 2021

Store Demo We would like to acknowledge @08Tc3wBB for their assistance. Entry added February 1, 2021

WebRTC We would like to acknowledge Philipp Hancke for their assistance. Entry added February 1, 2021

Wi-Fi We would like to acknowledge an anonymous researcher for their assistance. Entry added February 1, 2021

This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE-----

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    "data": "A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple macOS. Interaction with the ModelIO library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.The specific flaw exists within the ModelIO framework. Crafted data in a USD file can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Apple macOS is a set of dedicated operating systems developed by Apple Corporation for Mac computers. An input validation error vulnerability exists in the Apple IO Model, which originates from the handling of untrusted input in the Model I/O component of macOS. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\nAPPLE-SA-2021-02-01-2 Additional information for\nAPPLE-SA-2021-01-26-1 iOS 14.4 and iPadOS 14.4\n\niOS 14.4 and iPadOS 14.4 addresses the following issues. Information\nabout the security content is also available at\nhttps://support.apple.com/HT212146. \n\nAnalytics\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A remote attacker may be able to cause a denial of service\nDescription: This issue was addressed with improved checks. \nCVE-2021-1761: Cees Elzinga\nEntry added February 1, 2021\n\nAPFS\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A local user may be able to read arbitrary files\nDescription: The issue was addressed with improved permissions logic. \nCVE-2021-1797: Thomas Tempelmann\nEntry added February 1, 2021\n\nBluetooth\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A remote attacker may be able to cause arbitrary code\nexecution\nDescription: An out-of-bounds read was addressed with improved input\nvalidation. \nCVE-2021-1794: Jianjun Dai of 360 Alpha Lab\nEntry added February 1, 2021\n\nBluetooth\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A remote attacker may be able to cause arbitrary code\nexecution\nDescription: An out-of-bounds write was addressed with improved input\nvalidation. \nCVE-2021-1795: Jianjun Dai of 360 Alpha Lab\nCVE-2021-1796: Jianjun Dai of 360 Alpha Lab\nEntry added February 1, 2021\n\nBluetooth\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: An attacker in a privileged position may be able to perform a\ndenial of service attack\nDescription: A memory initialization issue was addressed with\nimproved memory handling. \nCVE-2021-1780: Jianjun Dai of 360 Alpha Lab\nEntry added February 1, 2021\n\nCoreAnimation\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A malicious application could execute arbitrary code leading\nto compromise of user information\nDescription: A memory corruption issue was addressed with improved\nstate management. \nCVE-2021-1760: @S0rryMybad of 360 Vulcan Team\nEntry added February 1, 2021\n\nCoreAudio\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing maliciously crafted web content may lead to code\nexecution\nDescription: An out-of-bounds write was addressed with improved input\nvalidation. \nCVE-2021-1747: JunDong Xie of Ant Security Light-Year Lab\nEntry added February 1, 2021\n\nCoreGraphics\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted font file may lead to\narbitrary code execution\nDescription: An out-of-bounds write issue was addressed with improved\nbounds checking. \nCVE-2021-1776: Ivan Fratric of Google Project Zero\nEntry added February 1, 2021\n\nCoreMedia\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: An out-of-bounds read was addressed with improved input\nvalidation. \nCVE-2021-1759: Hou JingYi (@hjy79425575) of Qihoo 360 CERT\nEntry added February 1, 2021\n\nCoreText\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted text file may lead to\narbitrary code execution\nDescription: A stack overflow was addressed with improved input\nvalidation. \nCVE-2021-1772: Mickey Jin of Trend Micro\nEntry added February 1, 2021\n\nCoreText\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A remote attacker may be able to cause arbitrary code\nexecution\nDescription: An out-of-bounds read was addressed with improved bounds\nchecking. \nCVE-2021-1792: Mickey Jin \u0026 Junzhi Lu of Trend Micro\nEntry added February 1, 2021\n\nCrash Reporter\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A local user may be able to create or modify system files\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1786: Csaba Fitzl (@theevilbit) of Offensive Security\nEntry added February 1, 2021\n\nCrash Reporter\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A local attacker may be able to elevate their privileges\nDescription: Multiple issues were addressed with improved logic. \nCVE-2021-1787: James Hutchins\nEntry added February 1, 2021\n\nFairPlay\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A malicious application may be able to disclose kernel memory\nDescription: An out-of-bounds read issue existed that led to the\ndisclosure of kernel memory. \nCVE-2021-1791: Junzhi Lu (@pwn0rz), Qi Sun \u0026 Mickey Jin of Trend\nMicro\nEntry added February 1, 2021\n\nFontParser\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A remote attacker may be able to cause arbitrary code\nexecution\nDescription: An out-of-bounds read was addressed with improved bounds\nchecking. \nCVE-2021-1758: Peter Nguyen of STAR Labs\nEntry added February 1, 2021\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to a denial\nof service\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1773: Xingwei Lin of Ant Security Light-Year Lab\nEntry added February 1, 2021\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to a denial\nof service\nDescription: This issue was addressed with improved checks. \nCVE-2021-1766: Danny Rosseau of Carve Systems\nEntry added February 1, 2021\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: An out-of-bounds read was addressed with improved input\nvalidation. \nCVE-2021-1785: Xingwei Lin of Ant Security Light-Year Lab\nEntry added February 1, 2021\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: An out-of-bounds write was addressed with improved input\nvalidation. \nCVE-2021-1744: Xingwei Lin of Ant Security Light-Year Lab\nEntry added February 1, 2021\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A remote attacker may be able to cause unexpected application\ntermination or arbitrary code execution\nDescription: A logic issue was addressed with improved state\nmanagement. \nCVE-2021-1818: Xingwei Lin from Ant-Financial Light-Year Security Lab\nEntry added February 1, 2021\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: This issue was addressed with improved checks. \nCVE-2021-1746: Xingwei Lin of Ant Security Light-Year Lab, and Mickey\nJin \u0026 Qi Sun of Trend Micro\nCVE-2021-1793: Xingwei Lin of Ant Security Light-Year Lab\nEntry added February 1, 2021\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: An out-of-bounds read was addressed with improved bounds\nchecking. \nCVE-2021-1741: Xingwei Lin of Ant Security Light-Year Lab\nCVE-2021-1743: Xingwei Lin of Ant Security Light-Year Lab, and Mickey\nJin \u0026 Junzhi Lu of Trend Micro\nEntry added February 1, 2021\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to a denial\nof service\nDescription: An out-of-bounds read issue existed in the curl. \nCVE-2021-1778: Xingwei Lin of Ant Security Light-Year Lab\nEntry added February 1, 2021\n\nImageIO\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: An access issue was addressed with improved memory\nmanagement. \nCVE-2021-1783: Xingwei Lin of Ant Security Light-Year Lab\nEntry added February 1, 2021\n\nIOSkywalkFamily\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A local attacker may be able to elevate their privileges\nDescription: An out-of-bounds read was addressed with improved bounds\nchecking. \nCVE-2021-1757: Proteas and Pan ZhenPeng (@Peterpan0927) of Alibaba\nSecurity\nEntry added February 1, 2021\n\niTunes Store\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted URL may lead to arbitrary\njavascript code execution\nDescription: A validation issue was addressed with improved input\nsanitization. \nCVE-2021-1748: CodeColorist of Ant-Financial Light-Year Labs\nEntry added February 1, 2021\n\nKernel\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A remote attacker may be able to cause a denial of service\nDescription: A use after free issue was addressed with improved\nmemory management. \nCVE-2021-1764: Maxime Villard (@m00nbsd)\nEntry added February 1, 2021\n\nKernel\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: An application may be able to execute arbitrary code with\nkernel privileges\nDescription: Multiple issues were addressed with improved logic. \nCVE-2021-1750: @0xalsr\nEntry added February 1, 2021\n\nKernel\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A malicious application may be able to elevate privileges. \nApple is aware of a report that this issue may have been actively\nexploited. \nCVE-2021-1782: an anonymous researcher\n\nMessages\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A malicious application may be able to leak sensitive user\ninformation\nDescription: A privacy issue existed in the handling of Contact\ncards. \nCVE-2021-1781: Csaba Fitzl (@theevilbit) of Offensive Security\nEntry added February 1, 2021\n\nModel I/O\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted USD file may lead to\nunexpected application termination or arbitrary code execution\nDescription: A buffer overflow was addressed with improved bounds\nchecking. \nCVE-2021-1763: Mickey Jin of Trend Micro\nEntry added February 1, 2021\n\nModel I/O\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted USD file may lead to\nunexpected application termination or arbitrary code execution\nDescription: An out-of-bounds read was addressed with improved bounds\nchecking. \nCVE-2021-1768: Mickey Jin \u0026 Junzhi Lu of Trend Micro\nEntry added February 1, 2021\n\nModel I/O\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted USD file may lead to\nunexpected application termination or arbitrary code execution\nDescription: An out-of-bounds read was addressed with improved input\nvalidation. \nCVE-2021-1745: Mickey Jin \u0026 Junzhi Lu of Trend Micro\nEntry added February 1, 2021\n\nModel I/O\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted USD file may lead to\nunexpected application termination or arbitrary code execution\nDescription: An out-of-bounds write was addressed with improved input\nvalidation. \nCVE-2021-1762: Mickey Jin of Trend Micro\nEntry added February 1, 2021\n\nModel I/O\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to heap\ncorruption\nDescription: This issue was addressed with improved checks. \nCVE-2021-1767: Mickey Jin \u0026 Junzhi Lu of Trend Micro\nEntry added February 1, 2021\n\nModel I/O\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing a maliciously crafted image may lead to arbitrary\ncode execution\nDescription: An out-of-bounds read was addressed with improved bounds\nchecking. \nCVE-2021-1753: Mickey Jin of Trend Micro\nEntry added February 1, 2021\n\nPhone Keypad\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: An attacker with physical access to a device may be able to\nsee private contact information\nDescription: A lock screen issue allowed access to contacts on a\nlocked device. \nCVE-2021-1756: Ryan Pickren (ryanpickren.com)\nEntry added February 1, 2021\n\nSwift\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A malicious attacker with arbitrary read and write capability\nmay be able to bypass Pointer Authentication\nDescription: A logic issue was addressed with improved validation. \nCVE-2021-1769: CodeColorist of Ant-Financial Light-Year Labs\nEntry added February 1, 2021\n\nWebKit\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution\nDescription: A use after free issue was addressed with improved\nmemory management. \nCVE-2021-1788: Francisco Alonso (@revskills)\nEntry added February 1, 2021\n\nWebKit\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Processing maliciously crafted web content may lead to\narbitrary code execution\nDescription: A type confusion issue was addressed with improved state\nhandling. \nCVE-2021-1789: @S0rryMybad of 360 Vulcan Team\nEntry added February 1, 2021\n\nWebKit\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: Maliciously crafted web content may violate iframe sandboxing\npolicy\nDescription: This issue was addressed with improved iframe sandbox\nenforcement. \nCVE-2021-1801: Eliya Stein of Confiant\nEntry added February 1, 2021\n\nWebKit\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A remote attacker may be able to cause arbitrary code\nexecution. Apple is aware of a report that this issue may have been\nactively exploited. \nCVE-2021-1871: an anonymous researcher\nCVE-2021-1870: an anonymous researcher\n\nWebRTC\nAvailable for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4\nand later, and iPod touch (7th generation)\nImpact: A malicious website may be able to access restricted ports on\narbitrary servers\nDescription: A port redirection issue was addressed with additional\nport validation. \nCVE-2021-1799: Gregory Vishnepolsky \u0026 Ben Seri of Armis Security, and\nSamy Kamkar\nEntry added February 1, 2021\n\nAdditional recognition\n\niTunes Store\nWe would like to acknowledge CodeColorist of Ant-Financial Light-Year\nLabs for their assistance. \nEntry added February 1, 2021\n\nKernel\nWe would like to acknowledge Junzhi Lu (@pwn0rz), Mickey Jin \u0026 Jesse\nChange of Trend Micro for their assistance. \nEntry added February 1, 2021\n\nlibpthread\nWe would like to acknowledge CodeColorist of Ant-Financial Light-Year\nLabs for their assistance. \nEntry added February 1, 2021\n\nMail\nWe would like to acknowledge Yi\u011fit Can YILMAZ (@yilmazcanyigit) and\nan anonymous researcher for their assistance. \nEntry added February 1, 2021\n\nStore Demo\nWe would like to acknowledge @08Tc3wBB for their assistance. \nEntry added February 1, 2021\n\nWebRTC\nWe would like to acknowledge Philipp Hancke for their assistance. \nEntry added February 1, 2021\n\nWi-Fi\nWe would like to acknowledge an anonymous researcher for their\nassistance. \nEntry added February 1, 2021\n\nThis message is signed with Apple\u0027s Product Security PGP key,\nand details are available at:\nhttps://www.apple.com/support/security/pgp/\n-----BEGIN PGP SIGNATURE-----\n\niQIzBAEBCAAdFiEEbURczHs1TP07VIfuZcsbuWJ6jjAFAmAYgtAACgkQZcsbuWJ6\njjCK6g//dClC7Zq+dOqvuwvDa1ZMQ/R7pmp9qn2jFQsN41sf3JXSUT5AT2qhkB+W\nBvfgNl4JEAhdFigcuChzNWjrtQjT30Iqu/mPKF9zh8FRi5Uc0Z+UDAS4QAJcYmBl\nnaDKY9u0SIyzxyvoK2AhfnbgAy7xsICNUiPFIV3sLS20NnKaItd/zBVCsgiMnpXD\nlXBJJfoJZcKzUxsHVGuh3DU9FgyS0Ypo8EAuZTPT511rco7nAqQ+RY5s8DRZ91Up\nBWoFQezmVQmxHGA2rwJH+RgSUOUywCNi/xLinAdNq8en4db8UtSmUcQHqaFgybBk\nbfWN3apPFq7vKCPbW8NI4JPBeP4WhORGH1V2jgJV8DM8Lod/Uh1yJrcZ5a4FxwCO\nVZKROL2UwE8T3tNYNlYoIr83FKVeMxnYhEP+xSSM3iZGtIflkcO3UtfitJlV0U26\nRCavBUyxJV1aqb/3ic/WwLco7jBeOEIUkoZq7djyo8K1LrVSxZvBAUveV+Y2qvz3\nUrbdDeTaTqDZ+rgQjOTcMJsvLHwzcrD8DdhgAMt9FAsVZ+dxSsqrMBNxhtc5uRyf\nbSTDyJc4epsC5S6IrjHaePdnv65tuIjC/JYmBvdshtp5j3aUnJUGWPhWuuhDLIjh\noxMn01QVy9KvVSQs3kqot8Ai8e1hXGnzwDUHEqPQLYzEi77v8HU=\n=WL5N\n-----END PGP SIGNATURE-----\n\n\n\n",
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