CVE-2016-7479 (GCVE-0-2016-7479)

Vulnerability from cvelistv5 – Published: 2017-01-12 00:00 – Updated: 2024-08-06 01:57
VLAI
Summary
In all versions of PHP 7, during the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution.
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • Remote Code Execution
Assigner
checkpoint CNA under the mitre root
CNA scorecard C 66/100 over 17 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
n/a PHP 7.x Affected: PHP 7.x
Date Public
2017-01-11 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T01:57:47.655Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.youtube.com/watch?v=LDcaPstAuPk"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.php.net/bug.php?id=73092"
          },
          {
            "name": "RHSA-2018:1296",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:1296"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20180112-0001/"
          },
          {
            "name": "95151",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/95151"
          },
          {
            "name": "1037659",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1037659"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "PHP 7.x",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "PHP 7.x"
            }
          ]
        }
      ],
      "datePublic": "2017-01-11T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In all versions of PHP 7, during the unserialization process, resizing the \u0027properties\u0027 hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Remote Code Execution",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-05-03T09:57:01.000Z",
        "orgId": "897c38be-0345-43cd-b6cf-fe179e0c4f45",
        "shortName": "checkpoint"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.youtube.com/watch?v=LDcaPstAuPk"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugs.php.net/bug.php?id=73092"
        },
        {
          "name": "RHSA-2018:1296",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:1296"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20180112-0001/"
        },
        {
          "name": "95151",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/95151"
        },
        {
          "name": "1037659",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1037659"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@checkpoint.com",
          "ID": "CVE-2016-7479",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "PHP 7.x",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "PHP 7.x"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In all versions of PHP 7, during the unserialization process, resizing the \u0027properties\u0027 hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Remote Code Execution"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf",
              "refsource": "MISC",
              "url": "http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf"
            },
            {
              "name": "https://www.youtube.com/watch?v=LDcaPstAuPk",
              "refsource": "MISC",
              "url": "https://www.youtube.com/watch?v=LDcaPstAuPk"
            },
            {
              "name": "https://bugs.php.net/bug.php?id=73092",
              "refsource": "MISC",
              "url": "https://bugs.php.net/bug.php?id=73092"
            },
            {
              "name": "RHSA-2018:1296",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:1296"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20180112-0001/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20180112-0001/"
            },
            {
              "name": "95151",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/95151"
            },
            {
              "name": "1037659",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1037659"
            },
            {
              "name": "http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7",
              "refsource": "MISC",
              "url": "http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "897c38be-0345-43cd-b6cf-fe179e0c4f45",
    "assignerShortName": "checkpoint",
    "cveId": "CVE-2016-7479",
    "datePublished": "2017-01-12T00:00:00.000Z",
    "dateReserved": "2016-09-09T00:00:00.000Z",
    "dateUpdated": "2024-08-06T01:57:47.655Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2016-7479",
      "date": "2026-10-13",
      "epss": "0.41674",
      "percentile": "0.98658"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DB6890AF-8A0A-46EE-AAD5-CF9AAE14A321",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6B90B947-7B54-47F3-9637-2F4AC44079EE",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "35848414-BD5D-4164-84DC-61ABBB1C4152",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2B1F8402-8551-4F66-A9A7-81D472AB058E",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7A773E8E-48CD-4D35-A0FD-629BD9334486",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FC492340-79AF-4676-A161-079A97EC6F0C",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F1C2D8FE-C380-4B43-B634-A3DBA4700A71",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.7:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3EB58393-0C10-413C-8D95-6BAA8BC19A1B",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.8:*:*:*:*:*:*:*",
                    "matchCriteriaId": "751F51CA-9D88-4971-A6EC-8C0B72E8E22B",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.9:*:*:*:*:*:*:*",
                    "matchCriteriaId": "37B74118-8FC2-44CB-9673-A83DF777B2E6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.10:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4D56A200-1477-40DA-9444-CFC946157C69",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.11:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FD0D1CCC-A857-4C15-899E-08F9255CEE34",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.12:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6745CC43-2836-4CD8-848F-EEA08AE9D5AC",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.0.14:*:*:*:*:*:*:*",
                    "matchCriteriaId": "04146390-021D-4147-9830-9EAA90D120A7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:7.1.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0C68AA43-ED90-4B98-A5F8-4E210C2CC7CD",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In all versions of PHP 7, during the unserialization process, resizing the \u0027properties\u0027 hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution."
          },
          {
            "lang": "es",
            "value": "En todas las versiones de PHP 7, durante el proceso no serializado, redimensionando las \"propiedades\" de la tabla hash de un objeto serializado puede conducir a un uso despu\u00e9s de liberaci\u00f3n de memoria. Un atacante remoto puede explotar este error para obtener ejecuci\u00f3n de c\u00f3digo arbitraria."
          }
        ],
        "id": "CVE-2016-7479",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 7.5,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 6.4,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2017-01-12T00:59:00.140",
        "references": [
          {
            "source": "cve@checkpoint.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7"
          },
          {
            "source": "cve@checkpoint.com",
            "tags": [
              "Exploit",
              "Technical Description",
              "Third Party Advisory"
            ],
            "url": "http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf"
          },
          {
            "source": "cve@checkpoint.com",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/95151"
          },
          {
            "source": "cve@checkpoint.com",
            "url": "http://www.securitytracker.com/id/1037659"
          },
          {
            "source": "cve@checkpoint.com",
            "url": "https://access.redhat.com/errata/RHSA-2018:1296"
          },
          {
            "source": "cve@checkpoint.com",
            "tags": [
              "Issue Tracking",
              "Permissions Required"
            ],
            "url": "https://bugs.php.net/bug.php?id=73092"
          },
          {
            "source": "cve@checkpoint.com",
            "url": "https://security.netapp.com/advisory/ntap-20180112-0001/"
          },
          {
            "source": "cve@checkpoint.com",
            "tags": [
              "Technical Description"
            ],
            "url": "https://www.youtube.com/watch?v=LDcaPstAuPk"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://blog.checkpoint.com/2016/12/27/check-point-discovers-three-zero-day-vulnerabilities-web-programming-language-php-7"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Technical Description",
              "Third Party Advisory"
            ],
            "url": "http://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/95151"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securitytracker.com/id/1037659"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHSA-2018:1296"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Permissions Required"
            ],
            "url": "https://bugs.php.net/bug.php?id=73092"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://security.netapp.com/advisory/ntap-20180112-0001/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Technical Description"
            ],
            "url": "https://www.youtube.com/watch?v=LDcaPstAuPk"
          }
        ],
        "sourceIdentifier": "cve@checkpoint.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T06:48:57+00:00",
      "cve": "CVE-2016-7479",
      "id": "CVE-2016-7479",
      "initial_release_date": "2016-12-27T00:00:00+00:00",
      "product_status:fixed": "254",
      "product_status:known_affected": "87",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "php: Use-after-free vulnerability when resizing the \u0027properties\u0027 hash table of a serialized object",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-7479.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.