FKIE_CVE-2020-9967

Vulnerability from fkie_nvd - Published: 2021-04-02 18:15 - Updated: 2026-06-17 03:28
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, tvOS 14.0, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.0, iOS 14.0 and iPadOS 14.0. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.
References
product-security@apple.comhttp://packetstormsecurity.com/files/163501/XNU-Network-Stack-Kernel-Heap-Overflow.htmlThird Party Advisory, VDB Entry
product-security@apple.comhttps://support.apple.com/en-us/HT211843Vendor Advisory
product-security@apple.comhttps://support.apple.com/en-us/HT211844Vendor Advisory
product-security@apple.comhttps://support.apple.com/en-us/HT211850Vendor Advisory
product-security@apple.comhttps://support.apple.com/en-us/HT211931Vendor Advisory
product-security@apple.comhttps://support.apple.com/en-us/HT212011Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/163501/XNU-Network-Stack-Kernel-Heap-Overflow.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT211843Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT211844Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT211850Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT211931Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT212011Vendor Advisory
Impacted products
Vendor Product Version
apple ipados *
apple iphone_os *
apple mac_os_x *
apple mac_os_x *
apple mac_os_x 10.14.6
apple mac_os_x 10.14.6
apple mac_os_x 10.14.6
apple mac_os_x 10.14.6
apple mac_os_x 10.14.6
apple mac_os_x 10.14.6
apple mac_os_x 10.14.6
apple mac_os_x 10.14.6
apple mac_os_x 10.14.6
apple mac_os_x 10.14.6
apple mac_os_x 10.14.6
apple mac_os_x 10.15.7
apple mac_os_x 10.15.7
apple macos *
apple tvos *
apple watchos *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "tvOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "14.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "watchOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "7.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "iOS and iPadOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "14.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "11.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "11.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "product-security@apple.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "10CC9ED4-9AE1-415A-94FF-60CB209506CA",
              "versionEndExcluding": "14.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "16AF4D2F-3C55-4DCC-A253-3F8CB4F453EF",
              "versionEndExcluding": "14.0",
              "vulnerable": true
            },
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              "matchCriteriaId": "6DE2B03F-94EE-4E32-B366-FE31A7031403",
              "versionEndExcluding": "10.14.6",
              "versionStartIncluding": "10.14",
              "vulnerable": true
            },
            {
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              "versionEndExcluding": "10.15.7",
              "versionStartIncluding": "10.15",
              "vulnerable": true
            },
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              "matchCriteriaId": "693E7DAE-BBF0-4D48-9F8A-20DDBD4AAC0C",
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              "matchCriteriaId": "26108BEF-0847-4AB0-BD98-35344DFA7835",
              "vulnerable": true
            },
            {
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              "vulnerable": true
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              "vulnerable": true
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              "vulnerable": true
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:*",
              "matchCriteriaId": "6D69914D-46C7-4A0E-A075-C863C1692D33",
              "vulnerable": true
            },
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              "matchCriteriaId": "2C88BD98-46F5-447F-963A-FB9B167E31BE",
              "vulnerable": true
            },
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              "matchCriteriaId": "C7A0615B-D958-4BBF-B53F-AA839A0FE845",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "A654B8A2-FC30-4171-B0BB-366CD7ED4B6A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*",
              "matchCriteriaId": "C1C795B9-E58D-467C-83A8-2D45C792292F",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "99A75B7B-602D-402C-8CCD-4AE194F00214",
              "versionEndExcluding": "11.1.0",
              "versionStartIncluding": "11.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0D16EC4D-D2E7-476D-BFBC-3703C8F0B45E",
              "versionEndExcluding": "14.0",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "C117BCCF-7789-40BB-AD25-1E712F6DCF7C",
              "versionEndExcluding": "7.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, tvOS 14.0, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.0, iOS 14.0 and iPadOS 14.0. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory."
    },
    {
      "lang": "es",
      "value": "Se abordaron m\u00faltiples problemas de corrupci\u00f3n de la memoria con una comprobaci\u00f3n de la entrada mejorada.\u0026#xa0;Este problema es corregido en macOS Big Sur versi\u00f3n 11.0.1, tvOS versi\u00f3n 14.0, macOS Big Sur versi\u00f3n 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.0, iOS versi\u00f3n 14.0 y iPadOS versi\u00f3n 14.0.\u0026#xa0;Un atacante remoto puede ser capaz de causar la finalizaci\u00f3n inesperada del sistema o corromper la memoria del kernel."
    }
  ],
  "id": "CVE-2020-9967",
  "lastModified": "2026-06-17T03:28:53.630",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 9.3,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-04-02T18:15:18.637",
  "references": [
    {
      "source": "product-security@apple.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/163501/XNU-Network-Stack-Kernel-Heap-Overflow.html"
    },
    {
      "source": "product-security@apple.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.apple.com/en-us/HT211843"
    },
    {
      "source": "product-security@apple.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.apple.com/en-us/HT211844"
    },
    {
      "source": "product-security@apple.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.apple.com/en-us/HT211850"
    },
    {
      "source": "product-security@apple.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.apple.com/en-us/HT211931"
    },
    {
      "source": "product-security@apple.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.apple.com/en-us/HT212011"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/163501/XNU-Network-Stack-Kernel-Heap-Overflow.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.apple.com/en-us/HT211843"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://support.apple.com/en-us/HT211844"
    },
    {
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      "url": "https://support.apple.com/en-us/HT211850"
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      "url": "https://support.apple.com/en-us/HT211931"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://support.apple.com/en-us/HT212011"
    }
  ],
  "sourceIdentifier": "product-security@apple.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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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

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