FKIE_CVE-2024-21524

Vulnerability from fkie_nvd - Published: 2024-07-10 05:15 - Updated: 2026-06-17 07:09
Severity
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Summary
All versions of the package node-stringbuilder are vulnerable to Out-of-bounds Read due to incorrect memory length calculation, by calling ToBuffer, ToString, or CharAt on a StringBuilder object with a non-empty string value input. It's possible to return previously allocated memory, for example, by providing negative indexes, leading to an Information Disclosure.
References
report@snyk.iohttps://gist.github.com/dellalibera/0bb022811224f81d998fa61c3175ee67Exploit, Third Party Advisory
report@snyk.iohttps://github.com/magiclen/node-stringbuilder/blob/5c2797d3d6bf8cb6d10fe1e077609cef9a5a7de0/src/node-stringbuilder.c%23L1281Broken Link
report@snyk.iohttps://security.snyk.io/vuln/SNYK-JS-NODESTRINGBUILDER-6421617Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gist.github.com/dellalibera/0bb022811224f81d998fa61c3175ee67Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/magiclen/node-stringbuilder/blob/5c2797d3d6bf8cb6d10fe1e077609cef9a5a7de0/src/node-stringbuilder.c%23L1281Broken Link
af854a3a-2127-422b-91ae-364da2661108https://security.snyk.io/vuln/SNYK-JS-NODESTRINGBUILDER-6421617Exploit, Third Party Advisory
Impacted products
Vendor Product Version
magiclen stringbuilder *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "node-stringbuilder",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "report@snyk.io"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:magiclen:node-stringbuilder:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "node-stringbuilder",
          "vendor": "magiclen",
          "versions": [
            {
              "lessThan": "*",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:magiclen:stringbuilder:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "8DE1612F-F4A0-4ED1-8229-FC7EF4167BE2",
              "versionEndIncluding": "2.2.7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "All versions of the package node-stringbuilder are vulnerable to Out-of-bounds Read due to incorrect memory length calculation, by calling ToBuffer, ToString, or CharAt on a StringBuilder object with a non-empty string value input. It\u0027s possible to return previously allocated memory, for example, by providing negative indexes, leading to an Information Disclosure."
    },
    {
      "lang": "es",
      "value": "Todas las versiones del paquete node-stringbuilder son vulnerables a lecturas fuera de los l\u00edmites debido a un c\u00e1lculo incorrecto de la longitud de la memoria, al llamar a ToBuffer, ToString o CharAt en un objeto StringBuilder con una entrada de valor de cadena no vac\u00eda. Es posible devolver memoria previamente asignada, por ejemplo, proporcionando \u00edndices negativos, lo que lleva a una divulgaci\u00f3n de informaci\u00f3n."
    }
  ],
  "id": "CVE-2024-21524",
  "lastModified": "2026-06-17T07:09:40.537",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.2,
        "source": "report@snyk.io",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-21524",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-07-12T16:26:50.938246Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-07-10T05:15:11.340",
  "references": [
    {
      "source": "report@snyk.io",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://gist.github.com/dellalibera/0bb022811224f81d998fa61c3175ee67"
    },
    {
      "source": "report@snyk.io",
      "tags": [
        "Broken Link"
      ],
      "url": "https://github.com/magiclen/node-stringbuilder/blob/5c2797d3d6bf8cb6d10fe1e077609cef9a5a7de0/src/node-stringbuilder.c%23L1281"
    },
    {
      "source": "report@snyk.io",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://security.snyk.io/vuln/SNYK-JS-NODESTRINGBUILDER-6421617"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://gist.github.com/dellalibera/0bb022811224f81d998fa61c3175ee67"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "https://github.com/magiclen/node-stringbuilder/blob/5c2797d3d6bf8cb6d10fe1e077609cef9a5a7de0/src/node-stringbuilder.c%23L1281"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://security.snyk.io/vuln/SNYK-JS-NODESTRINGBUILDER-6421617"
    }
  ],
  "sourceIdentifier": "report@snyk.io",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "report@snyk.io",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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