fkie_cve-2015-5314
Vulnerability from fkie_nvd
Published
2018-02-21 16:29
Modified
2024-11-21 02:32
Severity ?
5.9 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
The eap_pwd_process function in eap_server/eap_server_pwd.c in hostapd 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when used with (1) an internal EAP server or (2) a RADIUS server and EAP-pwd is enabled in a runtime configuration, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message.
References
secalert@redhat.comhttp://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txtMitigation, Vendor Advisory
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2015/11/10/10Mailing List, Mitigation, Patch, Third Party Advisory
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2808-1Broken Link
secalert@redhat.comhttps://www.debian.org/security/2015/dsa-3397Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txtMitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2015/11/10/10Mailing List, Mitigation, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2808-1Broken Link
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2015/dsa-3397Third Party Advisory
Impacted products
Vendor Product Version
w1.fi wpa_supplicant *
debian debian_linux 8.0


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C0920644-8B05-465C-A1BE-BAC6344D990E",
              "versionEndExcluding": "2.6",
              "versionStartIncluding": "2.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The eap_pwd_process function in eap_server/eap_server_pwd.c in hostapd 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when used with (1) an internal EAP server or (2) a RADIUS server and EAP-pwd is enabled in a runtime configuration, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n eap_pwd_process en eap_server/eap_server_pwd.c en hostapd, en versiones 2.x anteriores a la 2.6 no valida que el b\u00fafer de reensamblaje sea lo bastante grande para el fragmento final al emplearse con (1) un servidor EAP interno o (2) un servidor RADIUS y EAP-pwd habilitado en una configuraci\u00f3n runtime. Esto permite que atacantes remotos provoquen una denegaci\u00f3n de servicio (finalizaci\u00f3n del proceso) mediante un fragmento final grande en un mensaje EAP-pwd."
    }
  ],
  "id": "CVE-2015-5314",
  "lastModified": "2024-11-21T02:32:46.673",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-02-21T16:29:00.287",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Mitigation",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2015/11/10/10"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.ubuntu.com/usn/USN-2808-1"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.debian.org/security/2015/dsa-3397"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Mitigation",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2015/11/10/10"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ],
      "url": "http://www.ubuntu.com/usn/USN-2808-1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.debian.org/security/2015/dsa-3397"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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