FKIE_CVE-2020-9951

Vulnerability from fkie_nvd - Published: 2020-10-16 17:15 - Updated: 2026-06-17 03:28
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.0. Processing maliciously crafted web content may lead to arbitrary code execution.
References
product-security@apple.comhttp://seclists.org/fulldisclosure/2020/Nov/18Mailing List, Third Party Advisory
product-security@apple.comhttp://seclists.org/fulldisclosure/2020/Nov/19Mailing List, Third Party Advisory
product-security@apple.comhttp://seclists.org/fulldisclosure/2020/Nov/20Mailing List, Third Party Advisory
product-security@apple.comhttp://seclists.org/fulldisclosure/2020/Nov/22Mailing List, Third Party Advisory
product-security@apple.comhttp://www.openwall.com/lists/oss-security/2020/11/23/3Mailing List, Third Party Advisory
product-security@apple.comhttps://security.gentoo.org/glsa/202012-10Third Party Advisory
product-security@apple.comhttps://support.apple.com/HT211845Release Notes, Vendor Advisory
product-security@apple.comhttps://support.apple.com/kb/HT211843Vendor Advisory
product-security@apple.comhttps://support.apple.com/kb/HT211844Vendor Advisory
product-security@apple.comhttps://support.apple.com/kb/HT211850Vendor Advisory
product-security@apple.comhttps://support.apple.com/kb/HT211935Vendor Advisory
product-security@apple.comhttps://support.apple.com/kb/HT211952Vendor Advisory
product-security@apple.comhttps://www.debian.org/security/2020/dsa-4797Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Nov/18Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Nov/19Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Nov/20Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Nov/22Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2020/11/23/3Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202012-10Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/HT211845Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211843Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211844Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211850Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211935Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT211952Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4797Third Party Advisory
Impacted products
Vendor Product Version
apple icloud *
apple itunes *
apple safari *
apple ipados *
apple iphone_os *
apple tvos *
apple watchos *
webkit webkitgtk\+ *
debian debian_linux 10.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Safari",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "Safari 14.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "product-security@apple.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*",
              "matchCriteriaId": "5AD2710B-E1DB-4D6C-9A0E-1EC033AEC709",
              "versionEndExcluding": "11.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*",
              "matchCriteriaId": "82AF1567-8217-464E-896E-874EBB0FE463",
              "versionEndExcluding": "12.10.9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8DE1F811-8D4C-4C36-82DB-FE761C07FD0B",
              "versionEndExcluding": "14.0",
              "vulnerable": true
            },
            {
              "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
            },
            {
              "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0D16EC4D-D2E7-476D-BFBC-3703C8F0B45E",
              "versionEndExcluding": "14.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C117BCCF-7789-40BB-AD25-1E712F6DCF7C",
              "versionEndExcluding": "7.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:webkit:webkitgtk\\+:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "03841750-DCF0-44AD-89E5-082609777398",
              "versionEndIncluding": "2.30.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.0. Processing maliciously crafted web content may lead to arbitrary code execution."
    },
    {
      "lang": "es",
      "value": "Se abord\u00f3 un problema de uso de la memoria previamente liberada con una administraci\u00f3n de la memoria mejorada.\u0026#xa0;Este problema es corregido en Safari versi\u00f3n 14.0.\u0026#xa0;El procesamiento de contenido web creado maliciosamente puede conllevar a una ejecuci\u00f3n de c\u00f3digo arbitraria"
    }
  ],
  "id": "CVE-2020-9951",
  "lastModified": "2026-06-17T03:28:51.987",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-10-16T17:15:17.887",
  "references": [
    {
      "source": "product-security@apple.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://seclists.org/fulldisclosure/2020/Nov/18"
    },
    {
      "source": "product-security@apple.com",
      "tags": [
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      ],
      "url": "http://seclists.org/fulldisclosure/2020/Nov/19"
    },
    {
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      ],
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    },
    {
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      ],
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    },
    {
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      ],
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    },
    {
      "source": "product-security@apple.com",
      "tags": [
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      ],
      "url": "https://security.gentoo.org/glsa/202012-10"
    },
    {
      "source": "product-security@apple.com",
      "tags": [
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      ],
      "url": "https://support.apple.com/HT211845"
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    {
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    },
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    },
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  ],
  "sourceIdentifier": "product-security@apple.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "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.



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.