CVE-2020-8252 (GCVE-0-2020-8252)

Vulnerability from cvelistv5 – Published: 2020-09-18 20:11 – Updated: 2025-04-30 22:24
VLAI
Summary
The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes.
Severity
No CVSS data available.
CWE
  • CWE-120 - Classic Buffer Overflow (CWE-120)
Assigner
References
Impacted products
Vendor Product Version
NodeJS Node Affected: 4.0 , < 4.* (semver)
Affected: 5.0 , < 5.* (semver)
Affected: 6.0 , < 6.* (semver)
Affected: 7.0 , < 7.* (semver)
Affected: 8.0 , < 8.* (semver)
Affected: 9.0 , < 9.* (semver)
Affected: 10.0 , < 10.22.1 (semver)
Affected: 11.0 , < 11.* (semver)
Affected: 12.0 , < 12.18.4 (semver)
Affected: 13.0 , < 13.* (semver)
Affected: 14.0 , < 14.9.0 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T09:56:28.202Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/965914"
          },
          {
            "name": "GLSA-202009-15",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202009-15"
          },
          {
            "name": "USN-4548-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4548-1/"
          },
          {
            "name": "openSUSE-SU-2020:1616",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20201009-0004/"
          },
          {
            "name": "openSUSE-SU-2020:1660",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.html"
          },
          {
            "name": "FEDORA-2020-43d5a372fc",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Node",
          "vendor": "NodeJS",
          "versions": [
            {
              "lessThan": "4.*",
              "status": "affected",
              "version": "4.0",
              "versionType": "semver"
            },
            {
              "lessThan": "5.*",
              "status": "affected",
              "version": "5.0",
              "versionType": "semver"
            },
            {
              "lessThan": "6.*",
              "status": "affected",
              "version": "6.0",
              "versionType": "semver"
            },
            {
              "lessThan": "7.*",
              "status": "affected",
              "version": "7.0",
              "versionType": "semver"
            },
            {
              "lessThan": "8.*",
              "status": "affected",
              "version": "8.0",
              "versionType": "semver"
            },
            {
              "lessThan": "9.*",
              "status": "affected",
              "version": "9.0",
              "versionType": "semver"
            },
            {
              "lessThan": "10.22.1",
              "status": "affected",
              "version": "10.0",
              "versionType": "semver"
            },
            {
              "lessThan": "11.*",
              "status": "affected",
              "version": "11.0",
              "versionType": "semver"
            },
            {
              "lessThan": "12.18.4",
              "status": "affected",
              "version": "12.0",
              "versionType": "semver"
            },
            {
              "lessThan": "13.*",
              "status": "affected",
              "version": "13.0",
              "versionType": "semver"
            },
            {
              "lessThan": "14.9.0",
              "status": "affected",
              "version": "14.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The implementation of realpath in libuv \u003c 10.22.1, \u003c 12.18.4, and \u003c 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-120",
              "description": "Classic Buffer Overflow (CWE-120)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-04-30T22:24:26.861Z",
        "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "shortName": "hackerone"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/965914"
        },
        {
          "name": "GLSA-202009-15",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202009-15"
        },
        {
          "name": "USN-4548-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4548-1/"
        },
        {
          "name": "openSUSE-SU-2020:1616",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20201009-0004/"
        },
        {
          "name": "openSUSE-SU-2020:1660",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.html"
        },
        {
          "name": "FEDORA-2020-43d5a372fc",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "support@hackerone.com",
          "ID": "CVE-2020-8252",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "https://github.com/nodejs/node",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Fixed in 10.22.1, 12.18.4, 14.9.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The implementation of realpath in libuv \u003c 10.22.1, \u003c 12.18.4, and \u003c 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Classic Buffer Overflow (CWE-120)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/",
              "refsource": "MISC",
              "url": "https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/"
            },
            {
              "name": "https://hackerone.com/reports/965914",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/965914"
            },
            {
              "name": "GLSA-202009-15",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202009-15"
            },
            {
              "name": "USN-4548-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4548-1/"
            },
            {
              "name": "openSUSE-SU-2020:1616",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20201009-0004/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20201009-0004/"
            },
            {
              "name": "openSUSE-SU-2020:1660",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.html"
            },
            {
              "name": "FEDORA-2020-43d5a372fc",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2020-8252",
    "datePublished": "2020-09-18T20:11:51.000Z",
    "dateReserved": "2020-01-28T00:00:00.000Z",
    "dateUpdated": "2025-04-30T22:24:26.861Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-8252",
      "date": "2026-05-30",
      "epss": "0.00181",
      "percentile": "0.39454"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-8252\",\"sourceIdentifier\":\"support@hackerone.com\",\"published\":\"2020-09-18T21:15:13.497\",\"lastModified\":\"2024-11-21T05:38:35.650\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The implementation of realpath in libuv \u003c 10.22.1, \u003c 12.18.4, and \u003c 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes.\"},{\"lang\":\"es\",\"value\":\"La implementaci\u00f3n de realpath en libuv versiones anteriores a versiones anteriores a 10.22.1, versiones anteriores a 12.18.4 y versiones anteriores a 14.9.0, usada dentro de Node.js determin\u00f3 incorrectamente el tama\u00f1o del b\u00fafer, lo que puede resultar en un desbordamiento del b\u00fafer si la ruta resuelta tiene m\u00e1s de 256 bytes\"}],\"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:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":4.6,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"support@hackerone.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-120\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-120\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*\",\"versionStartIncluding\":\"10.0.0\",\"versionEndExcluding\":\"10.22.1\",\"matchCriteriaId\":\"3161B3E1-1269-4718-AE6A-2C122E1B52D3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*\",\"versionStartIncluding\":\"12.0.0\",\"versionEndExcluding\":\"12.18.4\",\"matchCriteriaId\":\"3CB8E8E0-24CC-417B-96D7-AF53B2296661\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"14.0.0\",\"versionEndExcluding\":\"14.9.0\",\"matchCriteriaId\":\"F0300B3A-89AE-40AF-BDAF-EB3F5DA6A66E\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B009C22E-30A4-4288-BCF6-C3E81DEAF45A\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E460AA51-FCDA-46B9-AE97-E6676AA5E194\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html\",\"source\":\"support@hackerone.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.html\",\"source\":\"support@hackerone.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://hackerone.com/reports/965914\",\"source\":\"support@hackerone.com\",\"tags\":[\"Permissions Required\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/\",\"source\":\"support@hackerone.com\"},{\"url\":\"https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/\",\"source\":\"support@hackerone.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202009-15\",\"source\":\"support@hackerone.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20201009-0004/\",\"source\":\"support@hackerone.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/4548-1/\",\"source\":\"support@hackerone.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://hackerone.com/reports/965914\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Permissions Required\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202009-15\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20201009-0004/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/4548-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.