FKIE_CVE-2025-6491

Vulnerability from fkie_nvd - Published: 2025-07-13 22:15 - Updated: 2025-11-04 22:16
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (>2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server.
References
security@php.nethttps://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8xExploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/07/11/4
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8xExploit, Vendor Advisory
Impacted products
Vendor Product Version
php php *
php php *
php php *
php php *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1DFFB7CE-0CB6-4229-8A83-D5994163F599",
              "versionEndExcluding": "8.1.33",
              "versionStartIncluding": "8.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C0671DC7-C9E0-4CB9-8CBE-7C7D724A4E3F",
              "versionEndExcluding": "8.2.29",
              "versionStartIncluding": "8.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "99142A2A-C510-477B-A090-DE73441BBFD0",
              "versionEndExcluding": "8.3.23",
              "versionStartIncluding": "8.3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "61D8A8DF-85D3-435B-BB2B-F3D728575758",
              "versionEndExcluding": "8.4.10",
              "versionStartIncluding": "8.4.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (\u003e2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server."
    },
    {
      "lang": "es",
      "value": "En las versiones de PHP 8.1.* anteriores a la 8.1.33, 8.2.* anteriores a la 8.2.29, 8.3.* anteriores a la 8.3.23 y 8.4.* anteriores a la 8.4.10, al analizar datos XML en extensiones SOAP, un prefijo de espacio de nombres XML demasiado grande (\u0026gt;2 GB) puede provocar la desreferencia de puntero nulo. Esto puede provocar fallos y afectar la disponibilidad del servidor de destino."
    }
  ],
  "id": "CVE-2025-6491",
  "lastModified": "2025-11-04T22:16:43.147",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "security@php.net",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-07-13T22:15:23.353",
  "references": [
    {
      "source": "security@php.net",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/07/11/4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"
    }
  ],
  "sourceIdentifier": "security@php.net",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "security@php.net",
      "type": "Secondary"
    }
  ]
}


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