cve-2021-21707
Vulnerability from cvelistv5
Published
2021-11-29 06:25
Modified
2024-09-17 03:38
Summary
In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended.
Impacted products
Vendor Product Version
Show details on NVD website


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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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            "url": "https://bugs.php.net/bug.php?id=79971"
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            "url": "https://security.netapp.com/advisory/ntap-20211223-0005/"
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            "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00030.html"
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        ],
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    "cna": {
      "affected": [
        {
          "product": "PHP",
          "vendor": "PHP Group",
          "versions": [
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              "status": "affected",
              "version": "7.3.x",
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              "versionType": "custom"
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      "credits": [
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          "lang": "en",
          "value": "Reported by rawataman6525 at gmail dot com"
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            "confidentialityImpact": "LOW",
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              "cweId": "CWE-159",
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        "defect": [
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        "discovery": "EXTERNAL"
      },
      "title": "Special characters break path parsing in XML functions",
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    "assignerOrgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
    "assignerShortName": "php",
    "cveId": "CVE-2021-21707",
    "datePublished": "2021-11-29T06:25:08.814960Z",
    "dateReserved": "2021-01-04T00:00:00",
    "dateUpdated": "2024-09-17T03:38:22.394Z",
    "state": "PUBLISHED"
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  }
}


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