gsd-2021-20236
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A flaw was found in the ZeroMQ server in versions before 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Aliases
Aliases
CVE-2021-20236


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-20236",
    "description": "A flaw was found in the ZeroMQ server in versions before 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
    "id": "GSD-2021-20236",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-20236.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-20236"
      ],
      "details": "A flaw was found in the ZeroMQ server in versions before 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
      "id": "GSD-2021-20236",
      "modified": "2023-12-13T01:23:11.991865Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2021-20236",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "zeromq",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "zeromq 4.3.3"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
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          }
        ]
      },
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          {
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                "value": "CWE-120-\u003eCWE-787"
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          },
          {
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            "url": "https://github.com/zeromq/libzmq/security/advisories/GHSA-qq65-x72m-9wr8"
          }
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      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c4.3.3",
          "affected_versions": "All versions before 4.3.3",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-787",
            "CWE-937"
          ],
          "date": "2022-08-05",
          "description": "A flaw was found in the ZeroMQ server This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
          "fixed_versions": [
            "4.3.3"
          ],
          "identifier": "CVE-2021-20236",
          "identifiers": [
            "CVE-2021-20236",
            "GHSA-qq65-x72m-9wr8"
          ],
          "not_impacted": "All versions starting from 4.3.3",
          "package_slug": "conan/zeromq",
          "pubdate": "2021-05-28",
          "solution": "Upgrade to version 4.3.3 or above.",
          "title": "Out-of-bounds Write",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-20236",
            "https://bugzilla.redhat.com/show_bug.cgi?id=1921976"
          ],
          "uuid": "d4eecbe3-70bd-42ad-a54a-8ff24b8a73db"
        }
      ]
    },
    "nvd.nist.gov": {
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                "cpe_name": [],
                "versionEndExcluding": "4.3.3",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
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                "cpe_name": [],
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              {
                "cpe23Uri": "cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:*",
                "cpe_name": [],
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          },
          {
            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
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            ],
            "operator": "OR"
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        ]
      },
      "cve": {
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          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2021-20236"
        },
        "data_format": "MITRE",
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        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
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                  "lang": "en",
                  "value": "CWE-787"
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1921976",
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              "tags": [
                "Issue Tracking",
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              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1921976"
            },
            {
              "name": "https://github.com/zeromq/libzmq/security/advisories/GHSA-qq65-x72m-9wr8",
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              ],
              "url": "https://github.com/zeromq/libzmq/security/advisories/GHSA-qq65-x72m-9wr8"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-08-05T15:21Z",
      "publishedDate": "2021-05-28T11:15Z"
    }
  }
}


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