GSD-2020-7067

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes.
Aliases
Aliases
CVE-2020-7067
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{
  "GSD": {
    "alias": "CVE-2020-7067",
    "description": "In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes.",
    "id": "GSD-2020-7067",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-7067.html",
      "https://www.debian.org/security/2020/dsa-4719",
      "https://www.debian.org/security/2020/dsa-4717",
      "https://advisories.mageia.org/CVE-2020-7067.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2020-7067.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-7067"
      ],
      "details": "In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes.",
      "id": "GSD-2020-7067",
      "modified": "2023-12-13T01:21:52.012156Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@php.net",
        "DATE_PUBLIC": "2020-04-14T03:10:00.000Z",
        "ID": "CVE-2020-7067",
        "STATE": "PUBLIC",
        "TITLE": "OOB Read in urldecode()"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "PHP",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "7.2.x below 7.2.30"
                        },
                        {
                          "version_value": "7.3.x below 7.3.17 and 7.4.x below 7.4.5"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "PHP Group"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "bigshaq at wearehackerone dot com"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-125 Out-of-bounds Read"
              }
            ]
          },
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-196 Unsigned to Signed Conversion Error"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "DSA-4717",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2020/dsa-4717"
          },
          {
            "name": "DSA-4719",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2020/dsa-4719"
          },
          {
            "name": "https://www.oracle.com/security-alerts/cpuoct2020.html",
            "refsource": "MISC",
            "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
          },
          {
            "name": "https://bugs.php.net/bug.php?id=79465",
            "refsource": "CONFIRM",
            "url": "https://bugs.php.net/bug.php?id=79465"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20200504-0001/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20200504-0001/"
          },
          {
            "name": "https://www.oracle.com/security-alerts/cpuApr2021.html",
            "refsource": "MISC",
            "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
          },
          {
            "name": "https://www.tenable.com/security/tns-2021-14",
            "refsource": "CONFIRM",
            "url": "https://www.tenable.com/security/tns-2021-14"
          }
        ]
      },
      "source": {
        "defect": [
          "https://bugs.php.net/bug.php?id=79465"
        ],
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "7.4.5",
                "versionStartIncluding": "7.4.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "7.3.17",
                "versionStartIncluding": "7.3.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "7.2.30",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.19.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "8.4.0.5",
                "versionStartIncluding": "8.0.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@php.net",
          "ID": "CVE-2020-7067"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-125"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugs.php.net/bug.php?id=79465",
              "refsource": "CONFIRM",
              "tags": [
                "Exploit",
                "Vendor Advisory"
              ],
              "url": "https://bugs.php.net/bug.php?id=79465"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20200504-0001/",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.netapp.com/advisory/ntap-20200504-0001/"
            },
            {
              "name": "DSA-4717",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2020/dsa-4717"
            },
            {
              "name": "DSA-4719",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2020/dsa-4719"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuoct2020.html",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuApr2021.html",
              "refsource": "MISC",
              "tags": [
                "Not Applicable",
                "Third Party Advisory"
              ],
              "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
            },
            {
              "name": "https://www.tenable.com/security/tns-2021-14",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://www.tenable.com/security/tns-2021-14"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-05-16T19:57Z",
      "publishedDate": "2020-04-27T21:15Z"
    }
  }
}


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  • 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.
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