VAR-202104-0616

Vulnerability from variot - Updated: 2024-11-23 19:39

This issue was addressed with improved checks. 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. Processing a maliciously crafted image may lead to arbitrary code execution. Apple macOS is a set of dedicated operating systems developed by Apple Corporation for Mac computers. There is a security vulnerability in Apple macOS. The vulnerability originates from the boundary condition when handling font files in the FontParser component in macOS. A remote attacker could create a specially crafted file or web page that tricks a victim into opening the file, triggering an out-of-bounds read error and reading the contents of memory on the system. Vulnerabilities exist in the following products or versions: macOS 10.15, macOS 10.15 SU1, macOS 10.15.1, macOS 10.15.2, macOS 10.15.3, macOS 10.15.4, macOS 10.15.4 SU1, macOS 10.15.5, macOS 11.55.5 SU1 , macOS 15.65.6, macOS 10.15.6 SU1, macOS 10.15.7, 10.15.7 SU1, macOS 11.0, macOS 11.0.1, macOS 11.1. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

APPLE-SA-2021-02-01-4 Additional information for APPLE-SA-2021-01-26-3 watchOS 7.3

watchOS 7.3 addresses the following issues. Information about the security content is also available at https://support.apple.com/HT212148.

Analytics Available for: Apple Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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

CoreText Available for: Apple Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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: Apple Watch Series 3 and later 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: Apple Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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 Watch Series 3 and later 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

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": "This issue was addressed with improved checks. 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. Processing a maliciously crafted image may lead to arbitrary code execution. Apple macOS is a set of dedicated operating systems developed by Apple Corporation for Mac computers. There is a security vulnerability in Apple macOS. The vulnerability originates from the boundary condition when handling font files in the FontParser component in macOS. A remote attacker could create a specially crafted file or web page that tricks a victim into opening the file, triggering an out-of-bounds read error and reading the contents of memory on the system. Vulnerabilities exist in the following products or versions: macOS 10.15, macOS 10.15 SU1, macOS 10.15.1, macOS 10.15.2, macOS 10.15.3, macOS 10.15.4, macOS 10.15.4 SU1, macOS 10.15.5, macOS 11.55.5 SU1 , macOS 15.65.6, macOS 10.15.6 SU1, macOS 10.15.7, 10.15.7 SU1, macOS 11.0, macOS 11.0.1, macOS 11.1. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\nAPPLE-SA-2021-02-01-4 Additional information for\nAPPLE-SA-2021-01-26-3 watchOS 7.3\n\nwatchOS 7.3 addresses the following issues. Information about the\nsecurity content is also available at\nhttps://support.apple.com/HT212148. \n\nAnalytics\nAvailable for: Apple Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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\nCoreText\nAvailable for: Apple Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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: Apple Watch Series 3 and later\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: Apple Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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 Watch Series 3 and later\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. 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        "id": "CNNVD-202102-080"
      }
    ],
    "trust": 0.6
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.