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CVE-2018-7443

Estado: ModificadaMedia (6.5)—

La función ReadTIFFImage en coders/tiff.c en ImageMagick 7.0.7-23 Q16 no valida correctamente la cantidad de datos de imagen en un archivo, lo que permite que atacantes remotos provoquen una denegación de servicio (error de asignación de memoria en la función AcquireMagickMemory en MagickCore/memory.c).

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 (3)

Canonical — Ubuntu LinuxDebian — Debian LinuxImagemagick — Imagemagick

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-7443",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "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
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          "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"
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  "published": "2018-02-23T22:29:01.827",
  "references": [
    {
      "url": "https://github.com/ImageMagick/ImageMagick/issues/999",
      "tags": [
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        "Issue Tracking",
        "Third Party Advisory"
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The ReadTIFFImage function in coders/tiff.c in ImageMagick 7.0.7-23 Q16 does not properly validate the amount of image data in a file, which allows remote attackers to cause a denial of service (memory allocation failure in the AcquireMagickMemory function in MagickCore/memory.c)."
    },
    {
      "lang": "es",
      "value": "La función ReadTIFFImage en coders/tiff.c en ImageMagick 7.0.7-23 Q16 no valida correctamente la cantidad de datos de imagen en un archivo, lo que permite que atacantes remotos provoquen una denegación de servicio (error de asignación de memoria en la función AcquireMagickMemory en MagickCore/memory.c)."
    }
  ],
  "lastModified": "2026-06-17T02:03:08.303",
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