cve-2021-24031
Vulnerability from cvelistv5
Published
2021-03-04 20:15
Modified
2024-08-03 19:21
Severity ?
Summary
In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties.
References
Impacted products
FacebookZstandard
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:21:17.205Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/facebook/zstd/issues/1630"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.facebook.com/security/advisories/cve-2021-24031"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Zstandard",
          "vendor": "Facebook",
          "versions": [
            {
              "lessThan": "unspecified",
              "status": "unaffected",
              "version": "1.4.1",
              "versionType": "custom"
            },
            {
              "lessThan": "1.4.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "dateAssigned": "2021-03-01T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-277",
              "description": "Insecure Inherited Permissions (CWE-277)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-04T20:15:21",
        "orgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
        "shortName": "facebook"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/facebook/zstd/issues/1630"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.facebook.com/security/advisories/cve-2021-24031"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve-assign@fb.com",
          "DATE_ASSIGNED": "2021-03-01",
          "ID": "CVE-2021-24031",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Zstandard",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "!\u003e=",
                            "version_value": "1.4.1"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_value": "1.4.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Facebook"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Insecure Inherited Permissions (CWE-277)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/facebook/zstd/issues/1630",
              "refsource": "MISC",
              "url": "https://github.com/facebook/zstd/issues/1630"
            },
            {
              "name": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404",
              "refsource": "MISC",
              "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404"
            },
            {
              "name": "https://www.facebook.com/security/advisories/cve-2021-24031",
              "refsource": "MISC",
              "url": "https://www.facebook.com/security/advisories/cve-2021-24031"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
    "assignerShortName": "facebook",
    "cveId": "CVE-2021-24031",
    "datePublished": "2021-03-04T20:15:21",
    "dateReserved": "2021-01-13T00:00:00",
    "dateUpdated": "2024-08-03T19:21:17.205Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-24031\",\"sourceIdentifier\":\"cve-assign@fb.com\",\"published\":\"2021-03-04T21:15:12.743\",\"lastModified\":\"2021-04-14T15:28:44.127\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Zstandard command-line utility prior to v1.4.1, output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties.\"},{\"lang\":\"es\",\"value\":\"En la utilidad Zstandard command-line versiones anteriores a v1.4.1, los archivos de salida se creaban con permisos predeterminados.\u0026#xa0;Los permisos de archivo correctos (que coincidan con la entrada) solo se establecer\u00e1n en el momento de la completaci\u00f3n.\u0026#xa0;Por lo tanto, los archivos de salida podr\u00edan ser le\u00eddos o escribibles para personas no deseadas\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"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:L/AC:L/Au:N/C:P/I:N/A:N\",\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":2.1},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-276\"}]},{\"source\":\"cve-assign@fb.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-277\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:facebook:zstandard:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.4.1\",\"matchCriteriaId\":\"7BB54F72-0467-43BC-B73A-DA6DC8A55FD9\"}]}]}],\"references\":[{\"url\":\"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404\",\"source\":\"cve-assign@fb.com\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/facebook/zstd/issues/1630\",\"source\":\"cve-assign@fb.com\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://www.facebook.com/security/advisories/cve-2021-24031\",\"source\":\"cve-assign@fb.com\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading...

Loading...

Loading...

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.