{
  "id": "CVE-2021-30831",
  "sourceIdentifier": "product-security@apple.com",
  "published": "2021-10-28T19:15:09.180",
  "lastModified": "2021-11-23T20:08:21.837",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An out-of-bounds read was addressed with improved input validation. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing a maliciously crafted font may result in the disclosure of process memory."
    },
    {
      "lang": "es",
      "value": "Se abord\u00f3 una lectura fuera de l\u00edmites con una comprobaci\u00f3n de entrada mejorada. Este problema se corrigi\u00f3 en tvOS versi\u00f3n 15, watchOS versi\u00f3n 8, iOS versi\u00f3n 15 y iPadOS versi\u00f3n 15. El procesamiento de una fuente maliciosamente dise\u00f1ada puede dar lugar a una divulgaci\u00f3n de la memoria del proceso"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "15.0",
              "matchCriteriaId": "090FB24C-D685-4422-A936-821B30F9655D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "15.0",
              "matchCriteriaId": "A5354DEB-CF04-4795-8D90-E280F0A859CA"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "12.0.1",
              "matchCriteriaId": "579B2A0D-A84F-45C2-B545-35ECEA3297DA"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "15.0",
              "matchCriteriaId": "B32A978E-673C-421D-93A1-CA84D90B67E4"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "8.0",
              "matchCriteriaId": "5364285F-B3F2-465B-B738-2FC1C8913A44"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://support.apple.com/en-us/HT212814",
      "source": "product-security@apple.com",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/en-us/HT212815",
      "source": "product-security@apple.com",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/en-us/HT212819",
      "source": "product-security@apple.com",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/kb/HT212869",
      "source": "product-security@apple.com",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}