GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2016-4476 (GCVE-0-2016-4476)

Vulnerability from cvelistv5 – Published: 2016-05-09 10:00 – Updated: 2024-08-06 00:32
VLAI
Summary
hostapd 0.6.7 through 2.5 and wpa_supplicant 0.6.7 through 2.5 do not reject \n and \r characters in passphrase parameters, which allows remote attackers to cause a denial of service (daemon outage) via a crafted WPS operation.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
URL Tags
http://www.openwall.com/lists/oss-security/2016/0… mailing-listx_refsource_MLIST
http://www.ubuntu.com/usn/USN-3455-1 vendor-advisoryx_refsource_UBUNTU
Date Public
2016-05-02 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T00:32:25.406Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[oss-security] 20160503 Re: hostapd/wpa_supplicant - psk configuration parameter update allowing arbitrary data to be written",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/05/03/12"
          },
          {
            "name": "USN-3455-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-3455-1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-05-02T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "hostapd 0.6.7 through 2.5 and wpa_supplicant 0.6.7 through 2.5 do not reject \\n and \\r characters in passphrase parameters, which allows remote attackers to cause a denial of service (daemon outage) via a crafted WPS operation."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-10-20T16:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "[oss-security] 20160503 Re: hostapd/wpa_supplicant - psk configuration parameter update allowing arbitrary data to be written",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/05/03/12"
        },
        {
          "name": "USN-3455-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-3455-1"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2016-4476",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "hostapd 0.6.7 through 2.5 and wpa_supplicant 0.6.7 through 2.5 do not reject \\n and \\r characters in passphrase parameters, which allows remote attackers to cause a denial of service (daemon outage) via a crafted WPS operation."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "[oss-security] 20160503 Re: hostapd/wpa_supplicant - psk configuration parameter update allowing arbitrary data to be written",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2016/05/03/12"
            },
            {
              "name": "USN-3455-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-3455-1"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2016-4476",
    "datePublished": "2016-05-09T10:00:00.000Z",
    "dateReserved": "2016-05-03T00:00:00.000Z",
    "dateUpdated": "2024-08-06T00:32:25.406Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2016-4476",
      "date": "2026-09-15",
      "epss": "0.02858",
      "percentile": "0.85996"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"0.6.7\", \"versionEndIncluding\": \"2.5\", \"matchCriteriaId\": \"2A90C871-EFCB-4867-9338-0471B9A9B192\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"0.6.7\", \"versionEndIncluding\": \"2.5\", \"matchCriteriaId\": \"84E8DC33-64D0-4507-8508-D0316070C1B2\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*\", \"matchCriteriaId\": \"815D70A8-47D3-459C-A32C-9FEACA0659D1\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\", \"matchCriteriaId\": \"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"588D4F37-0A56-47A4-B710-4D5F3D214FB9\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"hostapd 0.6.7 through 2.5 and wpa_supplicant 0.6.7 through 2.5 do not reject \\\\n and \\\\r characters in passphrase parameters, which allows remote attackers to cause a denial of service (daemon outage) via a crafted WPS operation.\"}, {\"lang\": \"es\", \"value\": \"hostapd 0.6.7 hasta la versi\\u00f3n 2.5 y wpa_supplicant 0.6.7 hasta la versi\\u00f3n 2.5 no rechaza caracteres \\\\n y \\\\r en par\\u00e1metros passphrase, lo que permite a atacantes remotos provocar una denegaci\\u00f3n de servicio (corte de demonio) a trav\\u00e9s de una operaci\\u00f3n WPS manipulada.\"}]",
      "id": "CVE-2016-4476",
      "lastModified": "2024-11-21T02:52:18.080",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:P\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2016-05-09T10:59:41.813",
      "references": "[{\"url\": \"http://www.openwall.com/lists/oss-security/2016/05/03/12\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://www.ubuntu.com/usn/USN-3455-1\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2016/05/03/12\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://www.ubuntu.com/usn/USN-3455-1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2016-4476\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2016-05-09T10:59:41.813\",\"lastModified\":\"2026-05-06T22:30:45.220\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"hostapd 0.6.7 through 2.5 and wpa_supplicant 0.6.7 through 2.5 do not reject \\\\n and \\\\r characters in passphrase parameters, which allows remote attackers to cause a denial of service (daemon outage) via a crafted WPS operation.\"},{\"lang\":\"es\",\"value\":\"hostapd 0.6.7 hasta la versi\u00f3n 2.5 y wpa_supplicant 0.6.7 hasta la versi\u00f3n 2.5 no rechaza caracteres \\\\n y \\\\r en par\u00e1metros passphrase, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (corte de demonio) a trav\u00e9s de una operaci\u00f3n WPS manipulada.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"0.6.7\",\"versionEndIncluding\":\"2.5\",\"matchCriteriaId\":\"2A90C871-EFCB-4867-9338-0471B9A9B192\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"0.6.7\",\"versionEndIncluding\":\"2.5\",\"matchCriteriaId\":\"84E8DC33-64D0-4507-8508-D0316070C1B2\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*\",\"matchCriteriaId\":\"815D70A8-47D3-459C-A32C-9FEACA0659D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"588D4F37-0A56-47A4-B710-4D5F3D214FB9\"}]}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2016/05/03/12\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.ubuntu.com/usn/USN-3455-1\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2016/05/03/12\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.ubuntu.com/usn/USN-3455-1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T12:05:07+00:00",
      "cve": "CVE-2016-4476",
      "id": "CVE-2016-4476",
      "initial_release_date": "2016-05-02T00:00:00+00:00",
      "product_status:known_affected": "4",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "hostapd: denial of service via crafted WPA/WPA2 passphrase parameter",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-4476.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-04T01:05:42Z",
      "cve": "CVE-2016-4476",
      "id": "CVE-2016-4476",
      "initial_release_date": "2023-02-15T05:02:50Z",
      "product_status:known_affected": "3",
      "product_status:known_not_affected": "42",
      "product_status:recommended": "74",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-4476",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-4476.json",
      "version": "25"
    }
  }
}



Log in or create an account to share your comment.




Tags
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.