FKIE_CVE-2016-5417

Vulnerability from fkie_nvd - Published: 2017-02-17 02:59 - Updated: 2026-06-17 00:49
Severity
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Memory leak in the __res_vinit function in the IPv6 name server management code in libresolv in GNU C Library (aka glibc or libc6) before 2.24 allows remote attackers to cause a denial of service (memory consumption) by leveraging partial initialization of internal resolver data structures.
References
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2016/08/02/5Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/92257Third Party Advisory, VDB Entry
secalert@redhat.comhttps://sourceware.org/bugzilla/show_bug.cgi?id=19257Issue Tracking, Patch, Third Party Advisory, VDB Entry
secalert@redhat.comhttps://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=2212c1420c92a33b0e0bd9a34938c9814a56c0f7
secalert@redhat.comhttps://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.htmlRelease Notes
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/08/02/5Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/92257Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://sourceware.org/bugzilla/show_bug.cgi?id=19257Issue Tracking, Patch, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=2212c1420c92a33b0e0bd9a34938c9814a56c0f7
af854a3a-2127-422b-91ae-364da2661108https://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.htmlRelease Notes
Impacted products
Vendor Product Version
gnu glibc *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BE77B607-61C0-45A2-8591-14CF4C0AED39",
              "versionEndIncluding": "2.23",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Memory leak in the __res_vinit function in the IPv6 name server management code in libresolv in GNU C Library (aka glibc or libc6) before 2.24 allows remote attackers to cause a denial of service (memory consumption) by leveraging partial initialization of internal resolver data structures."
    },
    {
      "lang": "es",
      "value": "Fuga de memoria en la funci\u00f3n __res_vinit en el c\u00f3digo de gesti\u00f3n del servidor de nombres IPv6 en libresolv en GNU C Library (tambi\u00e9n conocido como glibc o libc6) en versiones anteriores a 2.24 permite a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de memoria) aprovechando la inicializaci\u00f3n parcial de las estructuras internas de datos de resoluci\u00f3n."
    }
  ],
  "id": "CVE-2016-5417",
  "lastModified": "2026-06-17T00:49:22.287",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": true,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "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": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-02-17T02:59:13.310",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/08/02/5"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/92257"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=19257"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=2212c1420c92a33b0e0bd9a34938c9814a56c0f7"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/08/02/5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/92257"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=19257"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=2212c1420c92a33b0e0bd9a34938c9814a56c0f7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes"
      ],
      "url": "https://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.html"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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