cve-2023-6516
Vulnerability from cvelistv5
Published
2024-02-13 14:05
Modified
2024-08-02 08:35
Summary
Specific recursive query patterns may lead to an out-of-memory condition
Impacted products
ISCBIND 9
Show details on NVD website


{
  "containers": {
    "adp": [
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        "affected": [
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              "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "bind",
            "vendor": "isc",
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                "lessThanOrEqual": "9.16.45",
                "status": "affected",
                "version": "9.16.0",
                "versionType": "custom"
              },
              {
                "lessThanOrEqual": "9.16.45-s1",
                "status": "affected",
                "version": "9.16.8-s1",
                "versionType": "custom"
              }
            ]
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        ],
        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2023-6516",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-20T16:01:15.527012Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-789",
                "description": "CWE-789 Memory Allocation with Excessive Size Value",
                "lang": "en",
                "type": "CWE"
              }
            ]
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        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-28T16:35:10.580Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T08:35:13.212Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "name": "CVE-2023-6516",
            "tags": [
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              "x_transferred"
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            "url": "https://kb.isc.org/docs/cve-2023-6516"
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          {
            "tags": [
              "x_transferred"
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            "url": "https://security.netapp.com/advisory/ntap-20240503-0008/"
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        "title": "CVE Program Container"
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    ],
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "BIND 9",
          "vendor": "ISC",
          "versions": [
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              "status": "affected",
              "version": "9.16.0",
              "versionType": "custom"
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              "status": "affected",
              "version": "9.16.8-S1",
              "versionType": "custom"
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          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "ISC would like to thank Infoblox for bringing this vulnerability to our attention."
        }
      ],
      "datePublic": "2024-02-13T00:00:00Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "To keep its cache database efficient, `named` running as a recursive resolver occasionally attempts to clean up the database. It uses several methods, including some that are asynchronous: a small chunk of memory pointing to the cache element that can be cleaned up is first allocated and then queued for later processing. It was discovered that if the resolver is continuously processing query patterns triggering this type of cache-database maintenance, `named` may not be able to handle the cleanup events in a timely manner. This in turn enables the list of queued cleanup events to grow infinitely large over time, allowing the configured `max-cache-size` limit to be significantly exceeded.\nThis issue affects BIND 9 versions 9.16.0 through 9.16.45 and 9.16.8-S1 through 9.16.45-S1."
        }
      ],
      "exploits": [
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          "lang": "en",
          "value": "We are not aware of any active exploits."
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      ],
      "impacts": [
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            }
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      "metrics": [
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            "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"
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        "orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
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          "name": "CVE-2023-6516",
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        },
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
        },
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          "url": "https://security.netapp.com/advisory/ntap-20240503-0008/"
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      "solutions": [
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          "lang": "en",
          "value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.16.48 or 9.16.48-S1."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Specific recursive query patterns may lead to an out-of-memory condition",
      "workarounds": [
        {
          "lang": "en",
          "value": "No workarounds known."
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2023-6516",
    "datePublished": "2024-02-13T14:05:28.933Z",
    "dateReserved": "2023-12-05T10:44:59.435Z",
    "dateUpdated": "2024-08-02T08:35:13.212Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
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  }
}


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