gsd-2021-24031
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
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.
Aliases
Aliases
CVE-2021-24031


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-24031",
    "description": "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.",
    "id": "GSD-2021-24031",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-24031.html",
      "https://ubuntu.com/security/CVE-2021-24031",
      "https://advisories.mageia.org/CVE-2021-24031.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-24031"
      ],
      "details": "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.",
      "id": "GSD-2021-24031",
      "modified": "2023-12-13T01:23:37.566183Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "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"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:facebook:zstandard:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.4.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve-assign@fb.com",
          "ID": "CVE-2021-24031"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-276"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.facebook.com/security/advisories/cve-2021-24031",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.facebook.com/security/advisories/cve-2021-24031"
            },
            {
              "name": "https://github.com/facebook/zstd/issues/1630",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://github.com/facebook/zstd/issues/1630"
            },
            {
              "name": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Issue Tracking",
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.1,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-04-14T15:28Z",
      "publishedDate": "2021-03-04T21:15Z"
    }
  }
}


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