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CVE-2021-20296

Estado: ModificadaMedia (5.3)—

A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.

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 (2)

Debian — Debian LinuxOpenexr — Openexr

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-20296",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
          "product": "OpenEXR",
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  "published": "2021-04-01T14:15:13.310",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
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      ]
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability."
    },
    {
      "lang": "es",
      "value": "Se encontró un fallo en OpenEXR en versiones anteriores a 3.0.0-beta. Un archivo de entrada diseñado proporcionado por un atacante, que es procesado por la funcionalidad de decompresión Dwa de la biblioteca IlmImf de OpenEXR, podría causar una desreferencia del puntero NULL. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema."
    }
  ],
  "lastModified": "2026-06-17T03:33:37.577",
  "configurations": [
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