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

CVE-2017-12132 (GCVE-0-2017-12132)

Vulnerability from cvelistv5 – Published: 2017-08-01 16:00 – Updated: 2024-08-05 18:28
VLAI
Summary
The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.
CWE
  • n/a
References
Date Public
2017-08-01 00:00
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T18:28:16.526Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://arxiv.org/pdf/1205.4011.pdf"
          },
          {
            "name": "100598",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/100598"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=21361"
          },
          {
            "name": "RHSA-2018:0805",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:0805"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2017-08-01T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-05-03T09:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://arxiv.org/pdf/1205.4011.pdf"
        },
        {
          "name": "100598",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/100598"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=21361"
        },
        {
          "name": "RHSA-2018:0805",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:0805"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-12132",
          "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": "The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://arxiv.org/pdf/1205.4011.pdf",
              "refsource": "MISC",
              "url": "https://arxiv.org/pdf/1205.4011.pdf"
            },
            {
              "name": "100598",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/100598"
            },
            {
              "name": "https://sourceware.org/bugzilla/show_bug.cgi?id=21361",
              "refsource": "MISC",
              "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=21361"
            },
            {
              "name": "RHSA-2018:0805",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:0805"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2017-12132",
    "datePublished": "2017-08-01T16:00:00.000Z",
    "dateReserved": "2017-08-01T00:00:00.000Z",
    "dateUpdated": "2024-08-05T18:28:16.526Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2017-12132",
      "date": "2026-09-17",
      "epss": "0.01881",
      "percentile": "0.7845"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"2.25\", \"matchCriteriaId\": \"9C3B907D-79AF-44AC-BD23-C369CD6AE173\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.\"}, {\"lang\": \"es\", \"value\": \"La herramienta de resoluci\\u00f3n de zonas stub de DNS en la librer\\u00eda GNU C, tambi\\u00e9n conocida como glibc o libc6, en sus versiones anteriores a la 2.26 cuando el soporte EDNS est\\u00e1 activado, solicitar\\u00e1 respuestas UDP de gran tama\\u00f1o de servidores de nombres, pudiendo simplificar los ataques de suplantaci\\u00f3n de DNS debido a una fragmentaci\\u00f3n de IP.\"}]",
      "id": "CVE-2017-12132",
      "lastModified": "2024-11-21T03:08:53.703",
      "metrics": "{\"cvssMetricV30\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N\", \"baseScore\": 5.9, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.2, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:N/C:N/I:P/A:N\", \"baseScore\": 4.3, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.6, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2017-08-01T16:29:00.180",
      "references": "[{\"url\": \"http://www.securityfocus.com/bid/100598\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2018:0805\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://arxiv.org/pdf/1205.4011.pdf\", \"source\": \"cve@mitre.org\", \"tags\": [\"Technical Description\", \"Third Party Advisory\"]}, {\"url\": \"https://sourceware.org/bugzilla/show_bug.cgi?id=21361\", \"source\": \"cve@mitre.org\", \"tags\": [\"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"http://www.securityfocus.com/bid/100598\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2018:0805\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://arxiv.org/pdf/1205.4011.pdf\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Technical Description\", \"Third Party Advisory\"]}, {\"url\": \"https://sourceware.org/bugzilla/show_bug.cgi?id=21361\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-770\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2017-12132\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2017-08-01T16:29:00.180\",\"lastModified\":\"2026-05-13T00:24:29.033\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.\"},{\"lang\":\"es\",\"value\":\"La herramienta de resoluci\u00f3n de zonas stub de DNS en la librer\u00eda GNU C, tambi\u00e9n conocida como glibc o libc6, en sus versiones anteriores a la 2.26 cuando el soporte EDNS est\u00e1 activado, solicitar\u00e1 respuestas UDP de gran tama\u00f1o de servidores de nombres, pudiendo simplificar los ataques de suplantaci\u00f3n de DNS debido a una fragmentaci\u00f3n de IP.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:P/A:N\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"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-770\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.25\",\"matchCriteriaId\":\"9C3B907D-79AF-44AC-BD23-C369CD6AE173\"}]}]}],\"references\":[{\"url\":\"http://www.securityfocus.com/bid/100598\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:0805\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://arxiv.org/pdf/1205.4011.pdf\",\"source\":\"cve@mitre.org\",\"tags\":[\"Technical Description\",\"Third Party Advisory\"]},{\"url\":\"https://sourceware.org/bugzilla/show_bug.cgi?id=21361\",\"source\":\"cve@mitre.org\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/100598\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:0805\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://arxiv.org/pdf/1205.4011.pdf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Technical Description\",\"Third Party Advisory\"]},{\"url\":\"https://sourceware.org/bugzilla/show_bug.cgi?id=21361\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-05-13T01:59:51+00:00",
      "cve": "CVE-2017-12132",
      "id": "CVE-2017-12132",
      "initial_release_date": "2017-04-07T00:00:00+00:00",
      "product_status:fixed": "600",
      "product_status:known_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "glibc: Fragmentation attacks possible when EDNS0 is enabled",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-12132.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-04T01:01:20Z",
      "cve": "CVE-2017-12132",
      "id": "CVE-2017-12132",
      "initial_release_date": "2023-02-15T04:42:15Z",
      "product_status:known_affected": "382",
      "product_status:known_not_affected": "292",
      "product_status:recommended": "1294",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2017-12132",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-12132.json",
      "version": "58"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…

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.


Loading…