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CVE-2016-5095 (GCVE-0-2016-5095)

Vulnerability from cvelistv5 – Published: 2016-08-07 10:00 – Updated: 2024-08-06 00:53
VLAI
Summary
Integer overflow in the php_escape_html_entities_ex function in ext/standard/html.c in PHP before 5.5.36 and 5.6.x before 5.6.22 allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a large output string from a FILTER_SANITIZE_FULL_SPECIAL_CHARS filter_var call. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-5094.
Severity
8.6 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE
  • n/a
Assigner
References
Date Public
2016-05-26 00:00
Show details on NVD website
To clipboard 

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                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Integer overflow in the php_escape_html_entities_ex function in ext/standard/html.c in PHP before 5.5.36 and 5.6.x before 5.6.22 allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a large output string from a FILTER_SANITIZE_FULL_SPECIAL_CHARS filter_var call.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-5094."
          },
          {
            "lang": "es",
            "value": "Desbordamiento de entero en la funci\u00f3n php_escape_html_entities_ex en ext/standard/html.c en PHP en versiones anteriores a 5.5.36 y 5.6.x en versiones anteriores a 5.6.22 permite a atacantes remotos provocar una denegaci\u00f3n de servicio o posiblemente tener otro impacto no especificado desencadenando una cadena de salida grande de una llamada FILTER_SANITIZE_FULL_SPECIAL_CHARS filter_var. NOTA: esta vulnerabilidad existe debido a una soluci\u00f3n incompleta para CVE-2016-5094."
          }
        ],
        "id": "CVE-2016-5095",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": true,
              "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
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          ],
          "cvssMetricV30": [
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              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
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                "baseScore": 8.6,
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                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 4.7,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2016-08-07T10:59:08.460",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Release Notes"
            ],
            "url": "http://php.net/ChangeLog-5.php"
          },
          {
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            "url": "http://www.debian.org/security/2016/dsa-3602"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Release Notes"
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          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.securityfocus.com/bid/92144"
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        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
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              {
                "lang": "en",
                "value": "CWE-190"
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            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
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        ]
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    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T12:00:31+00:00",
      "cve": "CVE-2016-5095",
      "id": "CVE-2016-5095",
      "initial_release_date": "2016-05-17T00:00:00+00:00",
      "product_status:known_affected": "84",
      "product_status:known_not_affected": "56",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "php: Integer overflow in php_filter_full_special_chars",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-5095.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T02:16:15Z",
      "cve": "CVE-2016-5095",
      "id": "CVE-2016-5095",
      "initial_release_date": "2023-02-15T05:01:57Z",
      "product_status:known_not_affected": "2349",
      "product_status:recommended": "1122",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-5095",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-5095.json",
      "version": "15"
    }
  }
}



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Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.


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.