fkie_cve-2021-21556
Vulnerability from fkie_nvd
Published
2021-06-14 19:15
Modified
2024-11-21 05:48
Summary
Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and T640 Server BIOS contain a stack-based buffer overflow vulnerability in systems with NVDIMM-N installed. A local malicious user with high privileges may potentially exploit this vulnerability, leading to a denial of Service, arbitrary code execution, or information disclosure in UEFI or BIOS Preboot Environment.



{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dell:poweredge_r640_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C6D7153C-E15D-4041-B45F-207DEB0B13AE",
              "versionEndExcluding": "2.11.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:dell:poweredge_r640:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "81416C16-D7FA-4165-BB0E-6458A4EA5AEE",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dell:poweredge_r740_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4502AE6D-BA6B-46AA-A214-99143272BA70",
              "versionEndExcluding": "2.11.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:dell:poweredge_r740:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "DE562535-3D9B-4A82-AC0D-6A2225E63E8D",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dell:poweredge_r740xd_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3798FD8A-8A44-49F3-83E0-FD3D541DBCC2",
              "versionEndExcluding": "2.11.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:dell:poweredge_r740xd:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "868ECD3F-77CD-4F5D-86E5-61689E4C5BA0",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dell:poweredge_r940_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CD596C2D-BA27-4ED0-BCF4-F9792AD3E358",
              "versionEndExcluding": "2.11.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:dell:poweredge_r940:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "B581E1DE-4E94-49E5-B5CF-2A94B2570708",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dell:poweredge_r840_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9E8EDAF7-4C73-49F5-840A-A3E3DD4ED72D",
              "versionEndExcluding": "2.11.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:dell:poweredge_r840:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "E058B9C6-CD1C-42F5-8781-05450254E9E5",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dell:poweredge_r940xa_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F96E70D7-502B-42B9-8C50-30B685CC0E9E",
              "versionEndExcluding": "2.11.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:dell:poweredge_r940xa:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "3D143853-3D62-4AD7-B899-F726036A34D2",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dell:poweredge_t640_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E2AE262A-7389-4CB1-8A76-7B723563BEF6",
              "versionEndExcluding": "2.11.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:dell:poweredge_t640:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "1DEC0235-DDA1-4EE4-B3F8-512F1B29AFC6",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dell:poweredge_mx740c_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6552B1DC-BA56-42BC-AC35-374C764F256E",
              "versionEndExcluding": "2.11.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:dell:poweredge_mx740c:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "757039D5-60B9-40B0-B719-38E27409BDDE",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dell:poweredge_mx840c_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "24D97615-28EC-4484-8E1E-BFB8EABE3284",
              "versionEndExcluding": "2.11.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:dell:poweredge_mx840c:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "E4305D0F-CB59-49D5-8D21-8ECC3342C36C",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and T640 Server BIOS contain a stack-based buffer overflow vulnerability in systems with NVDIMM-N installed. A local malicious user with high privileges may potentially exploit this vulnerability, leading to a denial of Service, arbitrary code execution, or information disclosure in UEFI or BIOS Preboot Environment."
    },
    {
      "lang": "es",
      "value": "Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, y T640 Server BIOS contienen una vulnerabilidad de desbordamiento del b\u00fafer en la regi\u00f3n stack de la memoria en sistemas con NVDIMM-N instalados. Un usuario local malicioso con privilegios elevados puede explotar potencialmente esta vulnerabilidad, conllevando a una denegaci\u00f3n de servicio, una ejecuci\u00f3n de c\u00f3digo arbitrario o una divulgaci\u00f3n de informaci\u00f3n en UEFI o BIOS Preboot Environment"
    }
  ],
  "id": "CVE-2021-21556",
  "lastModified": "2024-11-21T05:48:35.470",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 0.6,
        "impactScore": 5.5,
        "source": "security_alert@emc.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-06-14T19:15:08.353",
  "references": [
    {
      "source": "security_alert@emc.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.dell.com/support/kbdoc/000187958"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.dell.com/support/kbdoc/000187958"
    }
  ],
  "sourceIdentifier": "security_alert@emc.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ],
      "source": "security_alert@emc.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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.