GSD-2021-21267

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
Schema-Inspector is an open-source tool to sanitize and validate JS objects (npm package schema-inspector). In before version 2.0.0, email address validation is vulnerable to a denial-of-service attack where some input (for example `a@0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.`) will freeze the program or web browser page executing the code. This affects any current schema-inspector users using any version to validate email addresses. Users who do not do email validation, and instead do other types of validation (like string min or max length, etc), are not affected. Users should upgrade to version 2.0.0, which uses a regex expression that isn't vulnerable to ReDoS.
Aliases
Aliases
CVE-2021-21267
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{
  "GSD": {
    "alias": "CVE-2021-21267",
    "description": "Schema-Inspector is an open-source tool to sanitize and validate JS objects (npm package schema-inspector). In before version 2.0.0, email address validation is vulnerable to a denial-of-service attack where some input (for example `a@0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.`) will freeze the program or web browser page executing the code. This affects any current schema-inspector users using any version to validate email addresses. Users who do not do email validation, and instead do other types of validation (like string min or max length, etc), are not affected. Users should upgrade to version 2.0.0, which uses a regex expression that isn\u0027t vulnerable to ReDoS.",
    "id": "GSD-2021-21267"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-21267"
      ],
      "details": "Schema-Inspector is an open-source tool to sanitize and validate JS objects (npm package schema-inspector). In before version 2.0.0, email address validation is vulnerable to a denial-of-service attack where some input (for example `a@0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.`) will freeze the program or web browser page executing the code. This affects any current schema-inspector users using any version to validate email addresses. Users who do not do email validation, and instead do other types of validation (like string min or max length, etc), are not affected. Users should upgrade to version 2.0.0, which uses a regex expression that isn\u0027t vulnerable to ReDoS.",
      "id": "GSD-2021-21267",
      "modified": "2023-12-13T01:23:11.082301Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2021-21267",
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        "TITLE": "Regular Expression Denial-of-Service in npm schema-inspector"
      },
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          }
        ]
      },
      "impact": {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        }
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        "discovery": "UNKNOWN"
      }
    },
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          "affected_versions": "All versions before 2.0.0",
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          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-937"
          ],
          "date": "2022-06-30",
          "description": "Schema-Inspector is an open-source tool to sanitize and validate JS objects (npm package schema-inspector). In, email address validation is vulnerable to a denial-of-service attack where some input will freeze the program or web browser page executing the code. This affects any current schema-inspector users using any version to validate email addresses. Users who do not do email validation, and instead do other types of validation (like string min or max length, etc), are not affected. Users should upgrade to, which uses a regex expression that isn\u0027t vulnerable to ReDoS.",
          "fixed_versions": [
            "2.0.0"
          ],
          "identifier": "CVE-2021-21267",
          "identifiers": [
            "CVE-2021-21267",
            "GHSA-f38p-c2gq-4pmr"
          ],
          "not_impacted": "All versions starting from 2.0.0",
          "package_slug": "npm/schema-inspector",
          "pubdate": "2021-03-19",
          "solution": "Upgrade to version 2.0.0 or above.",
          "title": "Uncontrolled Resource Consumption",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-21267"
          ],
          "uuid": "a1261284-7da5-4f15-b388-4f5afbb8c990"
        }
      ]
    },
    "nvd.nist.gov": {
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      "lastModifiedDate": "2022-06-30T19:08Z",
      "publishedDate": "2021-03-19T21:15Z"
    }
  }
}


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  • 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.
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