GSD-2018-3759

Vulnerability from gsd - Updated: 2018-05-03 00:00
Details
private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address by the subsequent resolution is a private address.
Aliases
Aliases
CVE-2018-3759
To clipboard 

{
  "GSD": {
    "alias": "CVE-2018-3759",
    "description": "private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address but the subsequent resolution is a private address.",
    "id": "GSD-2018-3759"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "private_address_check",
            "purl": "pkg:gem/private_address_check"
          }
        }
      ],
      "aliases": [
        "CVE-2018-3759",
        "GHSA-2xvj-j3qh-x8c3"
      ],
      "details": "private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU)\nrace condition due to the address the socket uses not being checked. DNS entries with a TTL of 0\ncan trigger this case where the initial resolution is a public address by the subsequent\nresolution is a private address.\n",
      "id": "GSD-2018-3759",
      "modified": "2018-05-03T00:00:00.000Z",
      "published": "2018-05-03T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147"
        }
      ],
      "schema_version": "1.4.0",
      "summary": "private_address_check Ruby Gem Time-of-check Time-of-use race condition"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "support@hackerone.com",
        "DATE_PUBLIC": "2018-05-03T00:00:00",
        "ID": "CVE-2018-3759",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "private_address_check ruby gem",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "0.5.0"
                        }
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            "value": "private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address but the subsequent resolution is a private address."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027) (CWE-362)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147",
            "refsource": "MISC",
            "url": "https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2018-3759",
      "date": "2018-05-03",
      "description": "private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU)\nrace condition due to the address the socket uses not being checked. DNS entries with a TTL of 0\ncan trigger this case where the initial resolution is a public address by the subsequent\nresolution is a private address.\n",
      "gem": "private_address_check",
      "ghsa": "2xvj-j3qh-x8c3",
      "patched_versions": [
        "\u003e= 0.5.0"
      ],
      "title": "private_address_check Ruby Gem Time-of-check Time-of-use race condition",
      "url": "https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c0.5.0",
          "affected_versions": "All versions before 0.5.0",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-362",
            "CWE-937"
          ],
          "date": "2019-10-09",
          "description": "The `private_address_check` ruby gem is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address but the subsequent resolution is a private address.",
          "fixed_versions": [
            "0.5.0"
          ],
          "identifier": "CVE-2018-3759",
          "identifiers": [
            "CVE-2018-3759"
          ],
          "not_impacted": "All versions starting from 0.5.0",
          "package_slug": "gem/private_address_check",
          "pubdate": "2018-06-13",
          "solution": "Upgrade to version 0.5.0 or above.",
          "title": "Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2018-3759"
          ],
          "uuid": "c023f72c-3148-492d-a661-0085eab766ce"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:private_address_check_project:private_address_check:*:*:*:*:*:ruby:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.5.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve-assignments@hackerone.com",
          "ID": "CVE-2018-3759"
        },
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        "data_type": "CVE",
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        "description": {
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              "lang": "en",
              "value": "private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address but the subsequent resolution is a private address."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-362"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/jtdowney/private_address_check/commit/4068228187db87fea7577f7020099399772bb147"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2019-10-09T23:40Z",
      "publishedDate": "2018-06-13T15:29Z"
    }
  }
}


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