gsd-2020-8618
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.
Aliases
Aliases
CVE-2020-8618


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-8618",
    "description": "An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.",
    "id": "GSD-2020-8618",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-8618.html",
      "https://ubuntu.com/security/CVE-2020-8618",
      "https://security.archlinux.org/CVE-2020-8618"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-8618"
      ],
      "details": "An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.",
      "id": "GSD-2020-8618",
      "modified": "2023-12-13T01:21:53.806943Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ASSIGNER": "security-officer@isc.org",
        "DATE_PUBLIC": "2020-06-10T19:10:14.000Z",
        "ID": "CVE-2020-8618",
        "STATE": "PUBLIC",
        "TITLE": "A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "BIND9",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "9.16.0 -\u003e 9.16.3"
                        }
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          }
        ]
      },
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      },
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 4.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
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                "value": "An assertion check in BIND (that is meant to prevent going beyond the end of a buffer when processing incoming data) can be incorrectly triggered by a large response during zone transfer.  Versions affected: BIND 9.16.0 -\u003e 9.16.3"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://kb.isc.org/docs/cve-2020-8618",
            "refsource": "CONFIRM",
            "url": "https://kb.isc.org/docs/cve-2020-8618"
          },
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          },
          {
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            "url": "https://usn.ubuntu.com/4399-1/"
          },
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          },
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            "name": "openSUSE-SU-2020:1701",
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          }
        ]
      },
      "solution": [
        {
          "lang": "eng",
          "value": "Upgrade to the patched release most closely related to your current version of BIND:\n\n    BIND 9.16.4"
        }
      ],
      "source": {
        "discovery": "USER"
      },
      "work_around": [
        {
          "lang": "eng",
          "value": "None"
        }
      ]
    },
    "nvd.nist.gov": {
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          {
            "children": [],
            "cpe_match": [
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                "cpe_name": [],
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            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
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      "cve": {
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        "description": {
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              "value": "An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-617"
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        },
        "references": {
          "reference_data": [
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            },
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            },
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 4.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-10-07T13:08Z",
      "publishedDate": "2020-06-17T22:15Z"
    }
  }
}


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