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CVE-2021-30836

Estado: ModificadaMedia (5.5)—

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.8 and iPadOS 14.8, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing a maliciously crafted audio file may disclose restricted memory.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (6)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-30836",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@apple.com",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "iOS and iPadOS",
          "versions": [
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              "status": "affected",
              "version": "unspecified",
              "lessThan": "14.8",
              "versionType": "custom"
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        },
        {
          "vendor": "Apple",
          "product": "iOS and iPadOS",
          "versions": [
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              "status": "affected",
              "version": "unspecified",
              "lessThan": "15",
              "versionType": "custom"
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        },
        {
          "vendor": "Apple",
          "product": "tvOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "15",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "watchOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "8",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-10-28T19:15:09.313",
  "references": [
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      "url": "http://www.openwall.com/lists/oss-security/2021/12/20/6",
      "tags": [
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        "Third Party Advisory"
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      "source": "product-security@apple.com"
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    {
      "url": "https://support.apple.com/en-us/HT212807",
      "tags": [
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        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
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      "url": "https://support.apple.com/en-us/HT212814",
      "tags": [
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      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212815",
      "tags": [
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        "Vendor Advisory"
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      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212819",
      "tags": [
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        "Vendor Advisory"
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      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/kb/HT212816",
      "tags": [
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      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/kb/HT212869",
      "tags": [
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      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2021/12/20/6",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    },
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      "tags": [
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        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "https://support.apple.com/kb/HT212816",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://support.apple.com/kb/HT212869",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 14.8 and iPadOS 14.8, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing a maliciously crafted audio file may disclose restricted memory."
    },
    {
      "lang": "es",
      "value": "Se abordó una lectura fuera de límites con una comprobación de entrada mejorada. Este problema se corrigió en iOS versión 14.8 y iPadOS versión 14.8, tvOS versión 15, watchOS versión 8, iOS versión 15 y iPadOS versión 15. El procesamiento de un archivo de audio diseñado de forma maliciosa puede revelar la memoria restringida"
    }
  ],
  "lastModified": "2026-06-17T03:50:58.737",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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              "versionEndExcluding": "15.0.0"
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  "sourceIdentifier": "product-security@apple.com"
}