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CVE-2019-9675

Estado: ModificadaAlta (8.1)—

** EN DISPUTA ** Se ha detectado un fallo en PHP, en las versiones 7.x anteriores a la 7.1.27 y en las 7.3.x anteriores a la 7.3.3. phar_tar_writeheaders_int tiene un desbordamiento de búfer mediante un valor de enlace largo. NOTA: el fabricante indica que el valor de enlace se utiliza solamente cuando un archivo contiene un symlink, algo que actualmente no puede ocurrir: "Este fallo facilita el compromiso teórico de la seguridad. Sin embargo, un ataque práctico es normalmente imposible."

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

Canonical — Ubuntu LinuxOpensuse — LeapPHP — PHP

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2019-9675",
  "cveTags": [
    {
      "tags": [
        "disputed"
      ],
      "sourceIdentifier": "cve@mitre.org"
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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  ],
  "published": "2019-03-11T11:29:12.080",
  "references": [
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.html",
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        "Mailing List",
        "Third Party Advisory"
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      "url": "http://php.net/ChangeLog-7.php",
      "tags": [
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      "source": "cve@mitre.org"
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      "url": "https://bugs.php.net/bug.php?id=77586",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
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      "url": "https://usn.ubuntu.com/3922-2/",
      "tags": [
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      "source": "cve@mitre.org"
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    {
      "url": "https://usn.ubuntu.com/3922-3/",
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      "source": "cve@mitre.org"
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    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00012.html",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "http://php.net/ChangeLog-7.php",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.php.net/bug.php?id=77586",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://usn.ubuntu.com/3922-2/",
      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
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      "lang": "en",
      "value": "An issue was discovered in PHP 7.x before 7.1.27 and 7.3.x before 7.3.3. phar_tar_writeheaders_int in ext/phar/tar.c has a buffer overflow via a long link value. NOTE: The vendor indicates that the link value is used only when an archive contains a symlink, which currently cannot happen: \"This issue allows theoretical compromise of security, but a practical attack is usually impossible."
    },
    {
      "lang": "es",
      "value": "** EN DISPUTA ** Se ha detectado un fallo en PHP, en las versiones 7.x anteriores a la 7.1.27 y en las 7.3.x anteriores a la 7.3.3. phar_tar_writeheaders_int tiene un desbordamiento de búfer mediante un valor de enlace largo. NOTA: el fabricante indica que el valor de enlace se utiliza solamente cuando un archivo contiene un symlink, algo que actualmente no puede ocurrir: \"Este fallo facilita el compromiso teórico de la seguridad. Sin embargo, un ataque práctico es normalmente imposible.\""
    }
  ],
  "lastModified": "2026-06-17T02:44:09.797",
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