gsd-2023-2911
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow. This issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.
Aliases
Aliases
CVE-2023-2911


To clipboard 

{
  "GSD": {
    "alias": "CVE-2023-2911",
    "id": "GSD-2023-2911"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-2911"
      ],
      "details": "If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow.\nThis issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.",
      "id": "GSD-2023-2911",
      "modified": "2023-12-13T01:20:32.223841Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-officer@isc.org",
        "ID": "CVE-2023-2911",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "BIND 9",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c=",
                          "version_name": "9.16.33",
                          "version_value": "9.16.41"
                        },
                        {
                          "version_affected": "\u003c=",
                          "version_name": "9.18.7",
                          "version_value": "9.18.15"
                        },
                        {
                          "version_affected": "\u003c=",
                          "version_name": "9.16.33-S1",
                          "version_value": "9.16.41-S1"
                        },
                        {
                          "version_affected": "\u003c=",
                          "version_name": "9.18.11-S1",
                          "version_value": "9.18.15-S1"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "ISC"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow.\nThis issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1."
          }
        ]
      },
      "exploit": [
        {
          "lang": "en",
          "value": "This flaw was discovered in internal testing. We are not aware of any active exploits."
        }
      ],
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://kb.isc.org/docs/cve-2023-2911",
            "refsource": "MISC",
            "url": "https://kb.isc.org/docs/cve-2023-2911"
          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2023/06/21/6",
            "refsource": "MISC",
            "url": "http://www.openwall.com/lists/oss-security/2023/06/21/6"
          },
          {
            "name": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3K6AJK7RRSR53HRF5GGKPA6PDUDWOD2/",
            "refsource": "MISC",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3K6AJK7RRSR53HRF5GGKPA6PDUDWOD2/"
          },
          {
            "name": "https://www.debian.org/security/2023/dsa-5439",
            "refsource": "MISC",
            "url": "https://www.debian.org/security/2023/dsa-5439"
          },
          {
            "name": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEFCEVCTYEMKTWA7V7EYPI5YQQ4JWDLI/",
            "refsource": "MISC",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEFCEVCTYEMKTWA7V7EYPI5YQQ4JWDLI/"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20230703-0010/",
            "refsource": "MISC",
            "url": "https://security.netapp.com/advisory/ntap-20230703-0010/"
          }
        ]
      },
      "solution": [
        {
          "lang": "en",
          "value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.16.42, 9.18.16, 9.16.42-S1, or 9.18.16-S1."
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "work_around": [
        {
          "lang": "en",
          "value": "Setting `stale-answer-client-timeout` to `off` or to a non-zero value prevents the issue.\n\nUsers of versions 9.18.10, 9.16.36, 9.16.36-S1 or older who are unable to upgrade should set `stale-answer-client-timeout` to `off`; using a non-zero value with these older versions leaves `named` vulnerable to CVE-2022-3924.\n\nAlthough it is possible to set the `recursive-clients` limit to a high number to reduce the likelihood of this scenario, this is not recommended; the limit on `recursive-clients` is important for preventing exhaustion of server resources. The limit cannot be disabled entirely."
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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                "versionStartIncluding": "9.18.11",
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            "operator": "OR"
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      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-officer@isc.org",
          "ID": "CVE-2023-2911"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow.\nThis issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-787"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.isc.org/docs/cve-2023-2911",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://kb.isc.org/docs/cve-2023-2911"
            },
            {
              "name": "http://www.openwall.com/lists/oss-security/2023/06/21/6",
              "refsource": "MISC",
              "tags": [
                "Mailing List",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2023/06/21/6"
            },
            {
              "name": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3K6AJK7RRSR53HRF5GGKPA6PDUDWOD2/",
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            },
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              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2023/dsa-5439"
            },
            {
              "name": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEFCEVCTYEMKTWA7V7EYPI5YQQ4JWDLI/",
              "refsource": "MISC",
              "tags": [
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                "Third Party Advisory"
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              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEFCEVCTYEMKTWA7V7EYPI5YQQ4JWDLI/"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20230703-0010/",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.netapp.com/advisory/ntap-20230703-0010/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-07-03T19:09Z",
      "publishedDate": "2023-06-21T17:15Z"
    }
  }
}


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