Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2025-08-11 13:54

Modified

2025-11-06 13:25

Summary

NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix

Details

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.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "libphp",
        "purl": "pkg:bitnami/libphp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.1.33"
            },
            {
              "introduced": "8.2.0"
            },
            {
              "fixed": "8.2.29"
            },
            {
              "introduced": "8.3.0"
            },
            {
              "fixed": "8.3.23"
            },
            {
              "introduced": "8.4.0"
            },
            {
              "fixed": "8.4.10"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-6491"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "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.",
  "id": "BIT-libphp-2025-6491",
  "modified": "2025-11-06T13:25:46.476Z",
  "published": "2025-08-11T13:54:53.967Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6491"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/07/11/4"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix"
}

CVE-2025-6491 (GCVE-0-2025-6491)

Vulnerability from cvelistv5 – Published: 2025-07-13 22:10 – Updated: 2025-11-04 21:14

Title

NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix

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.

Severity ?

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-476 - NULL Pointer Dereference

Assigner

php

References

URL

Tags

https://github.com/php/php-src/security/advisorie…

Impacted products

	Vendor	Product	Version
	PHP Group	PHP	Affected: 8.1.* , < 8.1.33 (semver) Affected: 8.2.* , < 8.2.29 (semver) Affected: 8.3.* , < 8.3.23 (semver) Affected: 8.4.* , < 8.4.10 (semver)

Credits

Ahmed Lekssays

Show details on NVD website

JSON

To clipboard

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                  },
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-07-14T15:59:51.249317Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-07-14T15:59:53.756Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "references": [
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            "tags": [
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            "url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"
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          },
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            "url": "http://www.openwall.com/lists/oss-security/2025/07/11/4"
          }
        ],
        "title": "CVE Program Container"
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    ],
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          "vendor": "PHP Group",
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      ],
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

Vulnerability from bitnami_vulndb

CVE-2025-6491 (GCVE-0-2025-6491)

Tags

Sightings

Nomenclature