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CVE-2021-3481

Estado: ModificadaAlta (7.1)—

Se ha encontrado un fallo en Qt. Se encontró una vulnerabilidad de lectura fuera de límites en QRadialFetchSimd en el archivo qt/qtbase/src/gui/painting/qdrawhelper_p.h en Qt/Qtbase. Este fallo puede conllevar a un acceso no autorizado a la memoria al renderizar y mostrar un archivo Scalable Vector Graphics (SVG) diseñado. La mayor amenaza de esta vulnerabilidad es la confidencialidad de los datos y la disponibilidad de la aplicación.

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 (1)

QT — QT

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-3481",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
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      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "qt",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in qt 5.12.11, qt 5.15.4, qt 6.0.3, qt 6.1.0RC."
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-08-22T15:15:13.363",
  "references": [
    {
      "url": "https://access.redhat.com/security/cve/CVE-2021-3481",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugreports.qt.io/browse/QTBUG-91507",
      "tags": [
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      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1931444",
      "tags": [
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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-125"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Qt. An out-of-bounds read vulnerability was found in QRadialFetchSimd in qt/qtbase/src/gui/painting/qdrawhelper_p.h in Qt/Qtbase. While rendering and displaying a crafted Scalable Vector Graphics (SVG) file this flaw may lead to an unauthorized memory access. The highest threat from this vulnerability is to data confidentiality and the application availability."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado un fallo en Qt. Se encontró una vulnerabilidad de lectura fuera de límites en QRadialFetchSimd en el archivo qt/qtbase/src/gui/painting/qdrawhelper_p.h en Qt/Qtbase. Este fallo puede conllevar a un acceso no autorizado a la memoria al renderizar y mostrar un archivo Scalable Vector Graphics (SVG) diseñado. La mayor amenaza de esta vulnerabilidad es la confidencialidad de los datos y la disponibilidad de la aplicación."
    }
  ],
  "lastModified": "2026-06-17T04:05:10.933",
  "configurations": [
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