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CVE-2018-4892

Estado: ModificadaAlta (8.8)—

Se ha descubierto un problema en Adobe Acrobat Reader 2018.009.20050 y anteriores, 2017.011.30070 y anteriores y 2015.006.30394 y anteriores. Esta vulnerabilidad es un ejemplo de una vulnerabilidad de uso de memoria previamente liberada en el descodificador JBIG2. La vulnerabilidad se desencadena mediante un archivo PDF manipulado que contiene una transmisión JBIG2 mal formada. La explotación con éxito de esta vulnerabilidad podría permitir la ejecución arbitraria de código.

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 (4)

Adobe — AcrobatAdobe — Acrobat DCAdobe — Acrobat ReaderAdobe — Acrobat Reader DC

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-4892",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "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": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@adobe.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Adobe Acrobat Reader 2018.009.20050 and earlier versions, 2017.011.30070 and earlier versions, 2015.006.30394 and earlier versions",
          "versions": [
            {
              "status": "affected",
              "version": "Adobe Acrobat Reader 2018.009.20050 and earlier versions, 2017.011.30070 and earlier versions, 2015.006.30394 and earlier versions"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-02-27T05:29:01.047",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/102995",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@adobe.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1040364",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@adobe.com"
    },
    {
      "url": "https://helpx.adobe.com/security/products/acrobat/apsb18-02.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@adobe.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/102995",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1040364",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://helpx.adobe.com/security/products/acrobat/apsb18-02.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Adobe Acrobat Reader 2018.009.20050 and earlier versions, 2017.011.30070 and earlier versions, 2015.006.30394 and earlier versions. This vulnerability is an instance of a use after free vulnerability in the JBIG2 decoder. The vulnerability is triggered by a crafted PDF file that contains a malformed JBIG2 stream. Successful exploitation could lead to arbitrary code execution."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en Adobe Acrobat Reader 2018.009.20050 y anteriores, 2017.011.30070 y anteriores y 2015.006.30394 y anteriores. Esta vulnerabilidad es un ejemplo de una vulnerabilidad de uso de memoria previamente liberada en el descodificador JBIG2. La vulnerabilidad se desencadena mediante un archivo PDF manipulado que contiene una transmisión JBIG2 mal formada. La explotación con éxito de esta vulnerabilidad podría permitir la ejecución arbitraria de código."
    }
  ],
  "lastModified": "2026-06-17T01:59:14.073",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "6AA5E332-A7C9-40EE-AA1D-ECD20C6AC948",
              "versionEndIncluding": "17.011.30070",
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            },
            {
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              "matchCriteriaId": "665540E1-CF26-4390-BC76-5FEF40E7DB9F",
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            {
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            },
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            },
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          ],
          "operator": "OR"
        }
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    }
  ],
  "sourceIdentifier": "psirt@adobe.com"
}