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CVE-2017-17669

Estado: ModificadaMedia (5.5)—

Existe una sobrelectura de búfer basada en memoria dinámica (heap) en la función Exiv2::Internal::PngChunk::keyTXTChunk de pngchunk_int.cpp en la versión 0.26 de Exiv2. Un archivo PNG manipulado conducirá a un ataque remoto de denegación de servicio.

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 LinuxExiv2 — Exiv2

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2017-17669",
  "cveTags": [],
  "metrics": {
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      {
        "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
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/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": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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  "published": "2017-12-13T22:29:00.237",
  "references": [
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      "url": "https://github.com/Exiv2/exiv2/issues/187",
      "tags": [
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        "Third Party Advisory"
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      "source": "cve@mitre.org"
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      "tags": [
        "Mailing List",
        "Third Party Advisory"
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      "source": "cve@mitre.org"
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      "tags": [
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    },
    {
      "url": "https://github.com/Exiv2/exiv2/issues/187",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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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": [
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          "lang": "en",
          "value": "CWE-125"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "There is a heap-based buffer over-read in the Exiv2::Internal::PngChunk::keyTXTChunk function of pngchunk_int.cpp in Exiv2 0.26. A crafted PNG file will lead to a remote denial of service attack."
    },
    {
      "lang": "es",
      "value": "Existe una sobrelectura de búfer basada en memoria dinámica (heap) en la función Exiv2::Internal::PngChunk::keyTXTChunk de pngchunk_int.cpp en la versión 0.26 de Exiv2. Un archivo PNG manipulado conducirá a un ataque remoto de denegación de servicio."
    }
  ],
  "lastModified": "2026-06-17T01:11:28.137",
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}