fkie_cve-2021-21708
Vulnerability from fkie_nvd
Published
2022-02-27 08:15
Modified
2024-11-21 05:48
Severity ?
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In PHP versions 7.4.x below 7.4.28, 8.0.x below 8.0.16, and 8.1.x below 8.1.3, when using filter functions with FILTER_VALIDATE_FLOAT filter and min/max limits, if the filter fails, there is a possibility to trigger use of allocated memory after free, which can result it crashes, and potentially in overwrite of other memory chunks and RCE. This issue affects: code that uses FILTER_VALIDATE_FLOAT with min/max limits.
References
security@php.nethttps://bugs.php.net/bug.php?id=81708Exploit, Issue Tracking, Patch, Vendor Advisory
security@php.nethttps://security.gentoo.org/glsa/202209-20Third Party Advisory
security@php.nethttps://security.netapp.com/advisory/ntap-20220325-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.php.net/bug.php?id=81708Exploit, Issue Tracking, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202209-20Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220325-0004/Third Party Advisory
Impacted products
Vendor Product Version
php php *
php php *
php php *


To clipboard 

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              "matchCriteriaId": "07B88F14-3867-49F4-8BE6-64E1D98927AB",
              "versionEndExcluding": "7.4.28",
              "versionStartIncluding": "7.4.0",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In PHP versions 7.4.x below 7.4.28, 8.0.x below 8.0.16, and 8.1.x below 8.1.3, when using filter functions with FILTER_VALIDATE_FLOAT filter and min/max limits, if the filter fails, there is a possibility to trigger use of allocated memory after free, which can result it crashes, and potentially in overwrite of other memory chunks and RCE. This issue affects: code that uses FILTER_VALIDATE_FLOAT with min/max limits."
    },
    {
      "lang": "es",
      "value": "En PHP versiones 7.4.x anteriores a 7.4.28, versiones 8.0.x anteriores a 8.0.16 y versiones 8.1.x anteriores a 8.1.3, cuando son usados funciones de filtrado con el filtro FILTER_VALIDATE_FLOAT y los l\u00edmites m\u00ednimo/m\u00e1ximo, si el filtro falla, se presenta la posibilidad de que sea activado el uso de la memoria asignada despu\u00e9s de liberarla, lo que puede resultar en un bloqueo, y potencialmente la sobreescritura de otros trozos de memoria y RCE. Este problema afecta a: el c\u00f3digo que usa FILTER_VALIDATE_FLOAT con l\u00edmites m\u00edn/m\u00e1x."
    }
  ],
  "id": "CVE-2021-21708",
  "lastModified": "2024-11-21T05:48:52.737",
  "metrics": {
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        "baseSeverity": "MEDIUM",
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          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
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          "version": "2.0"
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        "type": "Primary",
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          "confidentialityImpact": "NONE",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L",
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          "confidentialityImpact": "HIGH",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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  "published": "2022-02-27T08:15:06.817",
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  "sourceIdentifier": "security@php.net",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary"
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          "value": "CWE-416"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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