FKIE_CVE-2021-24031

Vulnerability from fkie_nvd - Published: 2021-03-04 21:15 - Updated: 2024-11-21 05:52
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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
cve-assign@fb.comhttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404Exploit, Issue Tracking, Mailing List, Third Party Advisory
cve-assign@fb.comhttps://github.com/facebook/zstd/issues/1630Exploit, Issue Tracking, Third Party Advisory
cve-assign@fb.comhttps://www.facebook.com/security/advisories/cve-2021-24031Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404Exploit, Issue Tracking, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/facebook/zstd/issues/1630Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.facebook.com/security/advisories/cve-2021-24031Vendor Advisory
Impacted products
Vendor Product Version
facebook zstandard *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:facebook:zstandard:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7BB54F72-0467-43BC-B73A-DA6DC8A55FD9",
              "versionEndExcluding": "1.4.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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"
    }
  ],
  "id": "CVE-2021-24031",
  "lastModified": "2024-11-21T05:52:14.813",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-03-04T21:15:12.743",
  "references": [
    {
      "source": "cve-assign@fb.com",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404"
    },
    {
      "source": "cve-assign@fb.com",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://github.com/facebook/zstd/issues/1630"
    },
    {
      "source": "cve-assign@fb.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.facebook.com/security/advisories/cve-2021-24031"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://github.com/facebook/zstd/issues/1630"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.facebook.com/security/advisories/cve-2021-24031"
    }
  ],
  "sourceIdentifier": "cve-assign@fb.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-277"
        }
      ],
      "source": "cve-assign@fb.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.