gsd-2021-3716
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.
Aliases
Aliases
CVE-2021-3716


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-3716",
    "description": "A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.",
    "id": "GSD-2021-3716",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-3716.html",
      "https://access.redhat.com/errata/RHSA-2022:0397",
      "https://linux.oracle.com/cve/CVE-2021-3716.html",
      "https://access.redhat.com/errata/RHSA-2022:1759"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-3716"
      ],
      "details": "A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.",
      "id": "GSD-2021-3716",
      "modified": "2023-12-13T01:23:34.846953Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2021-3716",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "product": {
                "product_data": [
                  {
                    "product_name": "nbdkit",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "Affects nbdkit v1.12 through v1.26.4 | Fixedin nbdkit v1.26.5"
                        }
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          }
        ]
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    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
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                "versionEndExcluding": "1.27.6",
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            "operator": "OR"
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            }
          ]
        },
        "problemtype": {
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 3.5,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:S/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 6.8,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 1.6,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2023-07-07T19:27Z",
      "publishedDate": "2022-03-02T23:15Z"
    }
  }
}


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