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CVE-2018-1000636

Estado: ModificadaMedia (6.5)—

Versión de JerryScript analizada en el commit con ID f86d7459d195c8ba58479d1861b0cc726c8b3793. Al analizar el historial, parece que el problema está presente desde el commit con ID 64a340ffeb8809b2b66bbe32fd443a8b79fdd860 que contiene una vulnerabilidad CWE-476: Desreferencia de puntero NULL que desencadena un comportamiento no definido en jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:598 (pasando NULL a memcpy como segundo argumento), lo que resulta en una desreferencia de puntero NULL (segfault) en jerry-core/jmem/jmem-heap.c:463 y que puede resultar en un cierre inesperado debido a un fallo de segmentación. El ataque parece ser explotable si una víctima abre un código JavaScript especialmente manipulado. La vulnerabilidad parece haber sido solucionada tras el commit con ID 87897849f6879df10e8ad68a41bf8cf507edf710.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Jerryscript — Jerryscript

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-1000636",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-08-20T19:31:33.717",
  "references": [
    {
      "url": "https://github.com/jerryscript-project/jerryscript/issues/2435",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/jerryscript-project/jerryscript/issues/2435",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "JerryScript version Tested on commit f86d7459d195c8ba58479d1861b0cc726c8b3793. Analysing history it seems that the issue has been present since commit 64a340ffeb8809b2b66bbe32fd443a8b79fdd860 contains a CWE-476: NULL Pointer Dereference vulnerability in Triggering undefined behavior at jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:598 (passing NULL to memcpy as 2nd argument) results in null pointer dereference (segfault) at jerry-core/jmem/jmem-heap.c:463 that can result in Crash due to segmentation fault. This attack appear to be exploitable via The victim must execute specially crafted javascript code. This vulnerability appears to have been fixed in after commit 87897849f6879df10e8ad68a41bf8cf507edf710."
    },
    {
      "lang": "es",
      "value": "Versión de JerryScript analizada en el commit con ID f86d7459d195c8ba58479d1861b0cc726c8b3793. Al analizar el historial, parece que el problema está presente desde el commit con ID 64a340ffeb8809b2b66bbe32fd443a8b79fdd860 que contiene una vulnerabilidad CWE-476: Desreferencia de puntero NULL que desencadena un comportamiento no definido en jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c:598 (pasando NULL a memcpy como segundo argumento), lo que resulta en una desreferencia de puntero NULL (segfault) en jerry-core/jmem/jmem-heap.c:463 y que puede resultar en un cierre inesperado debido a un fallo de segmentación. El ataque parece ser explotable si una víctima abre un código JavaScript especialmente manipulado. La vulnerabilidad parece haber sido solucionada tras el commit con ID 87897849f6879df10e8ad68a41bf8cf507edf710."
    }
  ],
  "lastModified": "2026-06-17T01:32:59.600",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jerryscript:jerryscript:1.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A6CCB68A-559D-430C-BD80-B6AFE8EF3FE6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}