GSD-2021-43667

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
A vulnerability has been detected in HyperLedger Fabric v1.4.0, v2.0.0, v2.1.0. This bug can be leveraged by constructing a message whose payload is nil and sending this message with the method 'forwardToLeader'. This bug has been admitted and fixed by the developers of Fabric. If leveraged, any leader node will crash.
Aliases
Aliases
CVE-2021-43667
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{
  "GSD": {
    "alias": "CVE-2021-43667",
    "description": "A vulnerability has been detected in HyperLedger Fabric v1.4.0, v2.0.0, v2.1.0. This bug can be leveraged by constructing a message whose payload is nil and sending this message with the method \u0027forwardToLeader\u0027. This bug has been admitted and fixed by the developers of Fabric. If leveraged, any leader node will crash.",
    "id": "GSD-2021-43667"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-43667"
      ],
      "details": "A vulnerability has been detected in HyperLedger Fabric v1.4.0, v2.0.0, v2.1.0. This bug can be leveraged by constructing a message whose payload is nil and sending this message with the method \u0027forwardToLeader\u0027. This bug has been admitted and fixed by the developers of Fabric. If leveraged, any leader node will crash.",
      "id": "GSD-2021-43667",
      "modified": "2023-12-13T01:23:26.255793Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2021-43667",
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    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "=1.4.0||\u003e=2.0.0 \u003c=2.1.0",
          "affected_versions": "Version 1.4.0, all versions starting from 2.0.0 up to 2.1.0",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-476",
            "CWE-937"
          ],
          "date": "2021-11-23",
          "description": "A vulnerability has been detected in HyperLedger Fabric. If leveraged, any leader node will crash.",
          "fixed_versions": [
            "v2.2.3"
          ],
          "identifier": "CVE-2021-43667",
          "identifiers": [
            "CVE-2021-43667"
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          "not_impacted": "All versions starting from 2.2.3",
          "package_slug": "go/github.com/hyperledger/fabric",
          "pubdate": "2021-11-18",
          "solution": "Upgrade to version 2.2.3 or above.",
          "title": "NULL Pointer Dereference",
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            "https://jira.hyperledger.org/browse/FAB-18529",
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          "uuid": "426766b0-2cce-4c35-aaf3-ef27b57905c0"
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      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
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          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-11-23T16:36Z",
      "publishedDate": "2021-11-18T16:15Z"
    }
  }
}


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  • 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.



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