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CVE-2021-37620

Estado: ModificadaMedia (5.5)—

Exiv2 es una utilidad de línea de comandos y una biblioteca C++ para leer, escribir, borrar y modificar los metadatos de los archivos de imagen. En versiones v0.27.4 y anteriores a Exiv2 se encontró una lectura fuera de límites. La lectura fuera de límites es desencadenada cuando Exiv2 es usado para leer los metadatos de un archivo de imagen diseñado. Un atacante podría explotar potencialmente la vulnerabilidad para causar una denegación de servicio, si puede engañar a la víctima para que ejecute Exiv2 en un archivo de imagen diseñado. El bug es corregido en versión v0.27.5

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)

Debian — Debian LinuxExiv2 — Exiv2Fedoraproject — Fedora

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-37620",
  "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
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          "version": "3.1",
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          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
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        "impactScore": 3.6,
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          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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  "published": "2021-08-09T19:15:08.033",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "security-advisories@github.com",
      "description": [
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          "value": "CWE-125"
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds read is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.5."
    },
    {
      "lang": "es",
      "value": "Exiv2 es una utilidad de línea de comandos y una biblioteca C++ para leer, escribir, borrar y modificar los metadatos de los archivos de imagen. En versiones v0.27.4 y anteriores a Exiv2 se encontró una lectura fuera de límites. La lectura fuera de límites es desencadenada cuando Exiv2 es usado para leer los metadatos de un archivo de imagen diseñado. Un atacante podría explotar potencialmente la vulnerabilidad para causar una denegación de servicio, si puede engañar a la víctima para que ejecute Exiv2 en un archivo de imagen diseñado. El bug es corregido en versión v0.27.5"
    }
  ],
  "lastModified": "2026-06-17T04:00:50.703",
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