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CVE-2021-20300

Estado: ModificadaMedia (5.5)—

A flaw was found in OpenEXR's hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who can submit a crafted file that is processed by OpenEXR, to trigger an integer overflow. 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)

Mostrar
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  "id": "CVE-2021-20300",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 7.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
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          "scope": "UNCHANGED",
          "version": "3.1",
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          "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"
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        "exploitabilityScore": 1.8
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  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "OpenEXR",
          "versions": [
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              "status": "affected",
              "version": "Fixed in v2.5.4 and beyond."
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  "published": "2022-03-04T18:15:07.867",
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      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25562",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in OpenEXR's hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who can submit a crafted file that is processed by OpenEXR, to trigger an integer overflow. The highest threat from this vulnerability is to system availability."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado un fallo en la funcionalidad hufUncompress de OpenEXR en el archivo OpenEXR/IlmImf/ImfHuf.cpp. Este fallo permite a un atacante que pueda enviar un archivo diseñado que sea procesado por OpenEXR, para desencadenar un desbordamiento de enteros. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema"
    }
  ],
  "lastModified": "2026-06-17T03:33:38.003",
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}