var-202104-0614
Vulnerability from variot
An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to disclose kernel memory. This vulnerability allows local attackers to disclose sensitive information on affected installations of Apple iOS. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.The specific flaw exists within the FairplayIOKit kext. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel. Apple FairPlay is a core component of Apple in the United States for providing media playback functions for devices. A resource management error vulnerability exists in Apple FairPlay due to a boundary condition within the FairPlay component in macOS. Vulnerabilities exist in the following product or version: macOS Big Sur 11.0.1.
The specific flaw exists within the FairplayIOKit kext. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
APPLE-SA-2021-02-01-3 Additional information for APPLE-SA-2021-01-26-2 tvOS 14.4
tvOS 14.4 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212149.
Analytics Available for: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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
CoreAnimation Available for: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD Impact: A local attacker may be able to elevate their privileges Description: Multiple issues were addressed with improved logic. CVE-2021-1791: Junzhi Lu (@pwn0rz), Qi Sun & Mickey Jin of Trend Micro Entry added February 1, 2021
FontParser Available for: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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
Swift Available for: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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: Apple TV 4K and Apple TV HD 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
WebRTC Available for: Apple TV 4K and Apple TV HD 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
Store Demo We would like to acknowledge @08Tc3wBB for their assistance. Entry added February 1, 2021
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"data": "An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to disclose kernel memory. This vulnerability allows local attackers to disclose sensitive information on affected installations of Apple iOS. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.The specific flaw exists within the FairplayIOKit kext. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel. Apple FairPlay is a core component of Apple in the United States for providing media playback functions for devices. A resource management error vulnerability exists in Apple FairPlay due to a boundary condition within the FairPlay component in macOS. Vulnerabilities exist in the following product or version: macOS Big Sur 11.0.1. \n\nThe specific flaw exists within the FairplayIOKit kext. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\nAPPLE-SA-2021-02-01-3 Additional information for\nAPPLE-SA-2021-01-26-2 tvOS 14.4\n\ntvOS 14.4 addresses the following issues. Information about the\nsecurity content is also available at\nhttps://support.apple.com/HT212149. \n\nAnalytics\nAvailable for: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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\nCoreAnimation\nAvailable for: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\nImpact: A local attacker may be able to elevate their privileges\nDescription: Multiple issues were addressed with improved logic. \nCVE-2021-1791: Junzhi Lu (@pwn0rz), Qi Sun \u0026 Mickey Jin of Trend\nMicro\nEntry added February 1, 2021\n\nFontParser\nAvailable for: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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\nSwift\nAvailable for: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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: Apple TV 4K and Apple TV HD\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\nWebRTC\nAvailable for: Apple TV 4K and Apple TV HD\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\nStore Demo\nWe would like to acknowledge @08Tc3wBB for their assistance. \nEntry added February 1, 2021\n\nThis message is signed with Apple\u0027s 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