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FKIE_CVE-2018-20783

Vulnerability from fkie_nvd - Published: 2019-02-21 19:29 - Updated: 2026-06-17 01:53
Severity
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
In PHP before 5.6.39, 7.x before 7.0.33, 7.1.x before 7.1.25, and 7.2.x before 7.2.13, a buffer over-read in PHAR reading functions may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse a .phar file. This is related to phar_parse_pharfile in ext/phar/phar.c.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00083.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
cve@mitre.orghttp://php.net/ChangeLog-5.phpVendor Advisory
cve@mitre.orghttp://php.net/ChangeLog-7.phpVendor Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2019:2519
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2019:3299
cve@mitre.orghttps://bugs.php.net/bug.php?id=77143Exploit, Issue Tracking, Vendor Advisory
cve@mitre.orghttps://usn.ubuntu.com/3566-2/
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00083.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
af854a3a-2127-422b-91ae-364da2661108http://php.net/ChangeLog-5.phpVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://php.net/ChangeLog-7.phpVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:2519
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:3299
af854a3a-2127-422b-91ae-364da2661108https://bugs.php.net/bug.php?id=77143Exploit, Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3566-2/
Impacted products
Vendor Product Version
php php *
php php *
php php *
php php *
opensuse leap 42.3
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
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              "matchCriteriaId": "97BC0217-A72A-48C5-AB6E-54B6EDB975A2",
              "versionEndExcluding": "5.6.39",
              "vulnerable": true
            },
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            },
            {
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              "versionEndExcluding": "7.1.25",
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            },
            {
              "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "98F3884B-94B2-4180-BB53-4064D4786501",
              "versionEndExcluding": "7.2.13",
              "versionStartIncluding": "7.2.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "5F65DAB0-3DAD-49FF-BC73-3581CC3D5BF3",
              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In PHP before 5.6.39, 7.x before 7.0.33, 7.1.x before 7.1.25, and 7.2.x before 7.2.13, a buffer over-read in PHAR reading functions may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse a .phar file. This is related to phar_parse_pharfile in ext/phar/phar.c."
    },
    {
      "lang": "es",
      "value": "En PHP, en versiones anteriores a la 5.6.39, en las versiones 7.x anteriores a la 7.1.25 y en las 7.2.x anteriores a la 7.2.13, una sobrelectura de b\u00fafer en las funciones de lectura PHAR podr\u00eda permitir a un atacante leer la memoria, ya sea asignada o no, posterior a los datos actuales durante el an\u00e1lisis de un archivo .phar. Esto est\u00e1 relacionado con phar_parse_pharfile en ext/phar/phar.c."
    }
  ],
  "id": "CVE-2018-20783",
  "lastModified": "2026-06-17T01:53:27.900",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-02-21T19:29:00.287",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00083.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.html"
    },
    {
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "http://php.net/ChangeLog-5.php"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://php.net/ChangeLog-7.php"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://access.redhat.com/errata/RHSA-2019:2519"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://access.redhat.com/errata/RHSA-2019:3299"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://bugs.php.net/bug.php?id=77143"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://usn.ubuntu.com/3566-2/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00083.html"
    },
    {
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    },
    {
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "http://php.net/ChangeLog-5.php"
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      "url": "http://php.net/ChangeLog-7.php"
    },
    {
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      "url": "https://access.redhat.com/errata/RHSA-2019:2519"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://access.redhat.com/errata/RHSA-2019:3299"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://bugs.php.net/bug.php?id=77143"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://usn.ubuntu.com/3566-2/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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