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CVE-2006-4812 (GCVE-0-2006-4812)

Vulnerability from cvelistv5 – Published: 2006-10-09 18:00 – Updated: 2024-08-07 19:23
VLAI
Summary
Integer overflow in PHP 5 up to 5.1.6 and 4 before 4.3.0 allows remote attackers to execute arbitrary code via an argument to the unserialize PHP function with a large value for the number of array elements, which triggers the overflow in the Zend Engine ecalloc function (Zend/zend_alloc.c).
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://secunia.com/advisories/22300 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/22650 third-party-advisoryx_refsource_SECUNIA
http://securitytracker.com/id?1016984 vdb-entryx_refsource_SECTRACK
http://secunia.com/advisories/22281 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/22338 third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/bid/20349 vdb-entryx_refsource_BID
http://www.securityfocus.com/archive/1/448953/100… vendor-advisoryx_refsource_OPENPKG
http://www.gentoo.org/security/en/glsa/glsa-20061… vendor-advisoryx_refsource_GENTOO
http://www.trustix.org/errata/2006/0055 vendor-advisoryx_refsource_TRUSTIX
http://rhn.redhat.com/errata/RHSA-2006-0688.html vendor-advisoryx_refsource_REDHAT
http://www.ubuntu.com/usn/usn-362-1 vendor-advisoryx_refsource_UBUNTU
http://rhn.redhat.com/errata/RHSA-2006-0708.html vendor-advisoryx_refsource_REDHAT
http://secunia.com/advisories/22538 third-party-advisoryx_refsource_SECUNIA
http://securityreason.com/securityalert/1691 third-party-advisoryx_refsource_SREASON
http://www.hardened-php.net/advisory_092006.133.html x_refsource_MISC
http://secunia.com/advisories/22533 third-party-advisoryx_refsource_SECUNIA
http://www.hardened-php.net/files/CVE-2006-4812.patch x_refsource_CONFIRM
http://support.avaya.com/elmodocs2/security/ASA-2… x_refsource_CONFIRM
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_al… x_refsource_CONFIRM
http://lists.suse.com/archive/suse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.securityfocus.com/archive/1/448014/100… mailing-listx_refsource_BUGTRAQ
http://secunia.com/advisories/22331 third-party-advisoryx_refsource_SECUNIA
http://www.vupen.com/english/advisories/2006/3922 vdb-entryx_refsource_VUPEN
http://secunia.com/advisories/22280 third-party-advisoryx_refsource_SECUNIA
http://support.avaya.com/elmodocs2/security/ASA-2… x_refsource_CONFIRM
Date Public
2006-10-05 00:00
Show details on NVD website
To clipboard 

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              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Integer overflow in PHP 5 up to 5.1.6 and 4 before 4.3.0 allows remote attackers to execute arbitrary code via an argument to the unserialize PHP function with a large value for the number of array elements, which triggers the overflow in the Zend Engine ecalloc function (Zend/zend_alloc.c)."
        },
        {
          "lang": "es",
          "value": "Desbordamiento de enteros en PHP 5 hasta la 5.1.6 y 4 anteriorer a 4.3.0 permite a un atacante remoto ejecutar c\u00f3digo de su elecci\u00f3n a trav\u00e9s de un argumento a la funcion PHP unserializable con un valor grande para el n\u00famero de elementos del array, lo cual dispara el desbordamiento en la funci\u00f3n ecalloc en Zend Engine (Zend/zend_alloc.c)."
        }
      ],
      "id": "CVE-2006-4812",
      "lastModified": "2024-11-21T00:16:48.757",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "HIGH",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "COMPLETE",
              "baseScore": 10.0,
              "confidentialityImpact": "COMPLETE",
              "integrityImpact": "COMPLETE",
              "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
              "version": "2.0"
            },
            "exploitabilityScore": 10.0,
            "impactScore": 10.0,
            "obtainAllPrivilege": true,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ]
      },
      "published": "2006-10-10T04:06:00.000",
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      "sourceIdentifier": "secalert@redhat.com",
      "vendorComments": [
        {
          "comment": "Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.\n\nThis issue did not affect the versions of php as shipped with Red Hat Enterprise Linux 3, and 4.",
          "lastModified": "2008-06-26T00:00:00",
          "organization": "Red Hat"
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              "lang": "en",
              "value": "CWE-94"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
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                    "matchCriteriaId": "F8CDFEF9-C367-4800-8A2F-375C261FAE55",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:5.1.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "16E43B88-1563-4EFD-9267-AE3E8C35D67A",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:5.1.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "11E5715F-A8BC-49EF-836B-BB78E1BC0790",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:5.1.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5FA68843-158E-463E-B68A-1ACF041C4E10",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:5.1.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1874F637-77E2-4C4A-BF92-AEE96A60BFB0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:5.1.5:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9592B32E-55CD-42D0-901E-8319823BC820",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:5.1.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A9BF34B5-F74C-4D56-9841-42452D60CB87",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Integer overflow in PHP 5 up to 5.1.6 and 4 before 4.3.0 allows remote attackers to execute arbitrary code via an argument to the unserialize PHP function with a large value for the number of array elements, which triggers the overflow in the Zend Engine ecalloc function (Zend/zend_alloc.c)."
          },
          {
            "lang": "es",
            "value": "Desbordamiento de enteros en PHP 5 hasta la 5.1.6 y 4 anteriorer a 4.3.0 permite a un atacante remoto ejecutar c\u00f3digo de su elecci\u00f3n a trav\u00e9s de un argumento a la funcion PHP unserializable con un valor grande para el n\u00famero de elementos del array, lo cual dispara el desbordamiento en la funci\u00f3n ecalloc en Zend Engine (Zend/zend_alloc.c)."
          }
        ],
        "id": "CVE-2006-4812",
        "lastModified": "2026-04-23T00:35:47.467",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 10.0,
                "confidentialityImpact": "COMPLETE",
                "integrityImpact": "COMPLETE",
                "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 10.0,
              "obtainAllPrivilege": true,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2006-10-10T04:06:00.000",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_alloc.c?r1=1.161\u0026r2=1.162"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.suse.com/archive/suse-security-announce/2006-Oct/0002.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://rhn.redhat.com/errata/RHSA-2006-0688.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2006-0708.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/22280"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/22281"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/22300"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/22331"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/22338"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/22533"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/22538"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://secunia.com/advisories/22650"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://securityreason.com/securityalert/1691"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch"
            ],
            "url": "http://securitytracker.com/id?1016984"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://support.avaya.com/elmodocs2/security/ASA-2006-223.htm"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://support.avaya.com/elmodocs2/security/ASA-2006-234.htm"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.gentoo.org/security/en/glsa/glsa-200610-14.xml"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://www.hardened-php.net/advisory_092006.133.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch"
            ],
            "url": "http://www.hardened-php.net/files/CVE-2006-4812.patch"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.securityfocus.com/archive/1/448014/100/0/threaded"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.securityfocus.com/archive/1/448953/100/0/threaded"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.securityfocus.com/bid/20349"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.trustix.org/errata/2006/0055"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/usn-362-1"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.vupen.com/english/advisories/2006/3922"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/29362"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_alloc.c?r1=1.161\u0026r2=1.162"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.suse.com/archive/suse-security-announce/2006-Oct/0002.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://rhn.redhat.com/errata/RHSA-2006-0688.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2006-0708.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/22280"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/22281"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/22300"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/22331"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/22338"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/22533"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/22538"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/22650"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://securityreason.com/securityalert/1691"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "http://securitytracker.com/id?1016984"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://support.avaya.com/elmodocs2/security/ASA-2006-223.htm"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://support.avaya.com/elmodocs2/security/ASA-2006-234.htm"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.gentoo.org/security/en/glsa/glsa-200610-14.xml"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://www.hardened-php.net/advisory_092006.133.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "http://www.hardened-php.net/files/CVE-2006-4812.patch"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/archive/1/448014/100/0/threaded"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/archive/1/448953/100/0/threaded"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/bid/20349"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.trustix.org/errata/2006/0055"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/usn-362-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.vupen.com/english/advisories/2006/3922"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/29362"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vendorComments": [
          {
            "comment": "Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.\n\nThis issue did not affect the versions of php as shipped with Red Hat Enterprise Linux 3, and 4.",
            "lastModified": "2008-06-26T00:00:00",
            "organization": "Red Hat"
          }
        ],
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-94"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T13:21:32+00:00",
      "cve": "CVE-2006-4812",
      "id": "CVE-2006-4812",
      "initial_release_date": "2006-09-30T00:00:00+00:00",
      "product_status:fixed": "142",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "security flaw",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2006/cve-2006-4812.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-04-30T02:47:01Z",
      "cve": "CVE-2006-4812",
      "id": "CVE-2006-4812",
      "initial_release_date": "2023-02-15T06:14:15Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2006-4812",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2006-4812.json",
      "version": "5"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.