CVE-2021-1779 (GCVE-0-2021-1779)

Vulnerability from cvelistv5 – Published: 2021-04-02 17:57 – Updated: 2024-08-03 16:25
VLAI
Summary
A logic error in kext loading was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. An application may be able to execute arbitrary code with system privileges.
CWE
  • An application may be able to execute arbitrary code with system privileges
References
URL Tags
https://support.apple.com/en-us/HT212147 x_refsource_MISC
Impacted products
Vendor Product Version CPE status
Apple macOS Affected: unspecified , < 11.2 (custom)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:25:04.754Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.apple.com/en-us/HT212147"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "11.2",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A logic error in kext loading was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. An application may be able to execute arbitrary code with system privileges."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "An application may be able to execute arbitrary code with system privileges",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-02T17:57:33.000Z",
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.apple.com/en-us/HT212147"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "product-security@apple.com",
          "ID": "CVE-2021-1779",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "macOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "11.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Apple"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A logic error in kext loading was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. An application may be able to execute arbitrary code with system privileges."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "An application may be able to execute arbitrary code with system privileges"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://support.apple.com/en-us/HT212147",
              "refsource": "MISC",
              "url": "https://support.apple.com/en-us/HT212147"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
    "assignerShortName": "apple",
    "cveId": "CVE-2021-1779",
    "datePublished": "2021-04-02T17:57:33.000Z",
    "dateReserved": "2020-12-08T00:00:00.000Z",
    "dateUpdated": "2024-08-03T16:25:04.754Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-1779",
      "date": "2026-09-22",
      "epss": "0.01179",
      "percentile": "0.66307"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6DE2B03F-94EE-4E32-B366-FE31A7031403",
                    "versionEndExcluding": "10.14.6",
                    "versionStartIncluding": "10.14",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DB8A73F8-3074-4B32-B9F6-343B6B1988C5",
                    "versionEndExcluding": "10.15.7",
                    "versionStartIncluding": "10.15",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*",
                    "matchCriteriaId": "693E7DAE-BBF0-4D48-9F8A-20DDBD4AAC0C",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*",
                    "matchCriteriaId": "A369D48B-6A0A-47AE-9513-D5E2E6F30931",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*",
                    "matchCriteriaId": "510F8317-94DA-498E-927A-83D5F41AF54A",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*",
                    "matchCriteriaId": "0D5D1970-6D2A-42CA-A203-42023D71730D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*",
                    "matchCriteriaId": "C68AE52B-5139-40A4-AE9A-E752DBF07D1B",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*",
                    "matchCriteriaId": "0FD3467D-7679-479F-9C0B-A93F7CD0929D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*",
                    "matchCriteriaId": "D4C6098E-EDBD-4A85-8282-B2E9D9333872",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:*",
                    "matchCriteriaId": "518BB47B-DD76-4E8C-9F10-7EBC1E146191",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:*",
                    "matchCriteriaId": "63940A55-D851-46EB-9668-D82BEFC1FE95",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:*",
                    "matchCriteriaId": "68C7A97A-3801-44FA-96CA-10298FA39883",
                    "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
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-007:*:*:*:*:*:*",
                    "matchCriteriaId": "9CDB4476-B521-43E4-A129-8718A8E0A8CD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update:*:*:*:*:*:*",
                    "matchCriteriaId": "2C88BD98-46F5-447F-963A-FB9B167E31BE",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update_2:*:*:*:*:*:*",
                    "matchCriteriaId": "C7A0615B-D958-4BBF-B53F-AA839A0FE845",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*",
                    "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
                  },
                  {
                    "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9B0973F4-D921-4060-9384-43D176F26967",
                    "versionEndExcluding": "11.2",
                    "versionStartIncluding": "11.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A logic error in kext loading was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. An application may be able to execute arbitrary code with system privileges."
          },
          {
            "lang": "es",
            "value": "Se abord\u00f3 un error l\u00f3gico en la carga de kext con un manejo del estado mejorado.\u0026#xa0;Este problema es corregido en macOS Big Sur versi\u00f3n 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave.\u0026#xa0;Una aplicaci\u00f3n puede ser capaz de ejecutar c\u00f3digo arbitrario con privilegios del sistema."
          }
        ],
        "id": "CVE-2021-1779",
        "lastModified": "2024-11-21T05:45:05.733",
        "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": "2021-04-02T18:15:21.187",
        "references": [
          {
            "source": "product-security@apple.com",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://support.apple.com/en-us/HT212147"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "https://support.apple.com/en-us/HT212147"
          }
        ],
        "sourceIdentifier": "product-security@apple.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T15:05:36+00:00",
      "cve": "CVE-2021-1779",
      "id": "CVE-2021-1779",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2021-1779",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-1779.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…