« Volver al listado

CVE-2021-30743

Estado: ModificadaAlta (7.8)—

An out-of-bounds write was addressed with improved input validation. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, Security Update 2021-003 Catalina, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted image may lead to arbitrary code execution.

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-2021-30743",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "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": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@apple.com",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "iOS and iPadOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "14.5",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "tvOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "14.5",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "watchOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "7.4",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "macOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "11.3",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "macOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2021",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-09-08T14:15:09.593",
  "references": [
    {
      "url": "https://support.apple.com/en-us/HT212317",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212323",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212324",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212325",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212530",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212317",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.apple.com/en-us/HT212323",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.apple.com/en-us/HT212324",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.apple.com/en-us/HT212325",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.apple.com/en-us/HT212530",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An out-of-bounds write was addressed with improved input validation. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, Security Update 2021-003 Catalina, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted image may lead to arbitrary code execution."
    },
    {
      "lang": "es",
      "value": "Se abordó una escritura fuera de límites con una comprobación de entrada mejorada. Este problema se corrigió en iOS versión 14.5 e iPadOS versión 14.5, watchOS versión 7.4, Security Update 2021-003 Catalina, tvOS versión 14.5, macOS Big Sur versión 11.3. El procesamiento de una imagen maliciosamente diseñada puede conllevar a una ejecución de código arbitrario"
    }
  ],
  "lastModified": "2026-06-17T03:50:48.013",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3EAAE2C1-EF21-4567-99F1-335D1EF955D1",
              "versionEndExcluding": "14.5"
            },
            {
              "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C1E12568-6F17-458F-8216-3D6DBC8F6DEE",
              "versionEndExcluding": "14.5"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D35AC8A5-3385-43ED-8753-A41E0C876D79"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6DF88F44-9522-4525-A215-4926175D8398"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "776702C3-EE91-4582-8AC5-1C38F06841DE"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F45EEAA6-3F24-4422-9747-A9137D54B547"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E6806E8D-1BCF-4DC9-8B4E-BED6A1589D67"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C81F015C-48F0-43CE-8B8F-36E884F63A0D"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F7656D28-A4C8-4287-B891-ABCE3EE0F2A9"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.6:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EF833C94-F436-407F-A3DA-32BE68A493C4"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.6:supplemental_update:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2E5A4D99-706D-4B12-9D41-13A480B3DF0D"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "89161D20-EB9C-4EC0-8D82-75B27CE49264"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A654B8A2-FC30-4171-B0BB-366CD7ED4B6A"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F12CC8B5-C1EB-419E-8496-B9A3864656AD"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F1F4BF7F-90D4-4668-B4E6-B06F4070F448"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-005:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7FD7176C-F4D1-43A7-9E49-BA92CA0D9980"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2703DE0B-8A9E-4A9D-9AE8-028E22BF47CA"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0F441A43-1669-478D-9EC8-E96882DE4F9F"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D425C653-37A2-448C-BF2F-B684ADB08A26"
            },
            {
              "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C1C795B9-E58D-467C-83A8-2D45C792292F"
            },
            {
              "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6036D662-BB70-45E5-AEDC-4CBC7F84BC28",
              "versionEndExcluding": "11.3",
              "versionStartIncluding": "11.0.1"
            },
            {
              "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D5B77841-F161-47AB-8043-3E0346E3AA25",
              "versionEndExcluding": "14.5"
            },
            {
              "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CFFFE00C-0AA6-4F60-ABF4-E68877BFD8F8",
              "versionEndExcluding": "7.4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "product-security@apple.com"
}