gsd-2020-7062
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.
Aliases
Aliases
CVE-2020-7062


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-7062",
    "description": "In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.",
    "id": "GSD-2020-7062",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-7062.html",
      "https://www.debian.org/security/2020/dsa-4719",
      "https://www.debian.org/security/2020/dsa-4717",
      "https://access.redhat.com/errata/RHSA-2020:5275",
      "https://access.redhat.com/errata/RHSA-2020:3662",
      "https://ubuntu.com/security/CVE-2020-7062",
      "https://advisories.mageia.org/CVE-2020-7062.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2020-7062.html",
      "https://linux.oracle.com/cve/CVE-2020-7062.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-7062"
      ],
      "details": "In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.",
      "id": "GSD-2020-7062",
      "modified": "2023-12-13T01:21:51.633133Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "security@php.net",
        "DATE_PUBLIC": "2020-02-17T16:21:00.000Z",
        "ID": "CVE-2020-7062",
        "STATE": "PUBLIC",
        "TITLE": "Null Pointer Dereference in PHP Session Upload Progress"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "PHP",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "7.3.x",
                          "version_value": "7.3.15"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_name": "7.4.x",
                          "version_value": "7.4.3"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_name": "7.2.x",
                          "version_value": "7.2.28"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "PHP Group"
            }
          ]
        }
      },
      "configuration": [
        {
          "lang": "eng",
          "value": "file_uploads=1\nsession.upload_progress.enabled=1\nsession.upload_progress.cleanup=0\n"
        }
      ],
      "credit": [
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          "lang": "eng",
          "value": "Reported by ryat@php.net"
        }
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          }
        ]
      },
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      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        }
      },
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              }
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      },
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          {
            "name": "https://bugs.php.net/bug.php?id=79221",
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            "url": "https://bugs.php.net/bug.php?id=79221"
          },
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html"
          },
          {
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            "name": "[debian-lts-announce] 20200326 [SECURITY] [DLA 2160-1] php5 security update",
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            "refsource": "CONFIRM",
            "url": "https://www.tenable.com/security/tns-2021-14"
          }
        ]
      },
      "source": {
        "defect": [
          "https://bugs.php.net/bug.php?id=79221"
        ],
        "discovery": "EXTERNAL"
      },
      "work_around": [
        {
          "lang": "eng",
          "value": "Disable file uploading, file upload tracking or enable session.upload_progress.cleanup."
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
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                "cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
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                "versionEndIncluding": "7.2.27",
                "versionStartIncluding": "7.2.0",
                "vulnerable": true
              },
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                "cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "7.3.14",
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                "cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
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            ],
            "operator": "OR"
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          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
                "cpe_name": [],
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            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
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            ],
            "operator": "OR"
          },
          {
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            "cpe_match": [
              {
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            }
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        },
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              "tags": [
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            },
            {
              "name": "openSUSE-SU-2020:0341",
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            },
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      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-01-01T19:30Z",
      "publishedDate": "2020-02-27T21:15Z"
    }
  }
}


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