FKIE_CVE-2025-5455

Vulnerability from fkie_nvd - Published: 2025-06-02 09:15 - Updated: 2025-06-02 17:32
Severity ?
8.4 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/R:U/RE:M/U:Clear
Summary
An issue was found in the private API function qDecodeDataUrl() in QtCore, which is used in QTextDocument and QNetworkReply, and, potentially, in user code. If the function was called with malformed data, for example, an URL that contained a "charset" parameter that lacked a value (such as "data:charset,"), and Qt was built with assertions enabled, then it would hit an assertion, resulting in a denial of service (abort). This impacts Qt up to 5.15.18, 6.0.0->6.5.8, 6.6.0->6.8.3 and 6.9.0. This has been fixed in 5.15.19, 6.5.9, 6.8.4 and 6.9.1.
References
a59d8014-47c4-4630-ab43-e1b13cbe58e3https://codereview.qt-project.org/c/qt/qtbase/+/642006
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was found in the private API function qDecodeDataUrl() in QtCore, which is used in QTextDocument and QNetworkReply, and, potentially, in user code.\n\nIf the function was called with malformed data, for example, an URL that\ncontained a \"charset\" parameter that lacked a value (such as\n\"data:charset,\"), and Qt was built with assertions enabled, then it would hit an assertion, resulting in a denial of service\n(abort).\n\nThis impacts Qt up to 5.15.18, 6.0.0-\u003e6.5.8, 6.6.0-\u003e6.8.3 and 6.9.0. This has been fixed in 5.15.19, 6.5.9, 6.8.4 and 6.9.1."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un problema en la funci\u00f3n privada de la API qDecodeDataUrl() de QtCore, utilizada en QTextDocument y QNetworkReply, y, potencialmente, en el c\u00f3digo de usuario. Si la funci\u00f3n se llamaba con datos mal formados, por ejemplo, una URL que conten\u00eda un par\u00e1metro \"charset\" sin valor (como \"data:charset,\"), y Qt se compilaba con aserciones habilitadas, se encontraba con una aserci\u00f3n, lo que resultaba en una denegaci\u00f3n de servicio (abortar). Esto afecta a Qt hasta las versiones 5.15.18, 6.0.0-\u0026gt;6.5.8, 6.6.0-\u0026gt;6.8.3 y 6.9.0. Se ha corregido en las versiones 5.15.19, 6.5.9, 6.8.4 y 6.9.1."
    }
  ],
  "id": "CVE-2025-5455",
  "lastModified": "2025-06-02T17:32:17.397",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "USER",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "CLEAR",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:U/V:X/RE:M/U:Clear",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "MODERATE"
        },
        "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-06-02T09:15:21.493",
  "references": [
    {
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
      "url": "https://codereview.qt-project.org/c/qt/qtbase/+/642006"
    }
  ],
  "sourceIdentifier": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
      "type": "Secondary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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