cve-2021-43826
Vulnerability from cvelistv5
Published
2022-02-22 22:45
Modified
2024-08-04 04:03
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Crash when tunneling TCP over HTTP in Envoy
References
security-advisories@github.comhttps://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mfIssue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mfIssue Tracking, Third Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:03:09.047Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "envoy",
          "vendor": "envoyproxy",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.18.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.19.0, \u003c 1.19.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.20.0, \u003c 1.20.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.21.0, \u003c 1.21.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling \u003cenvoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config\u003e` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416: Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-02-22T22:45:22",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145"
        }
      ],
      "source": {
        "advisory": "GHSA-cmx3-fvgf-83mf",
        "discovery": "UNKNOWN"
      },
      "title": "Crash when tunneling TCP over HTTP in Envoy",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-43826",
          "STATE": "PUBLIC",
          "TITLE": "Crash when tunneling TCP over HTTP in Envoy"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "envoy",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 1.18.6"
                          },
                          {
                            "version_value": "\u003e= 1.19.0, \u003c 1.19.3"
                          },
                          {
                            "version_value": "\u003e= 1.20.0, \u003c 1.20.2"
                          },
                          {
                            "version_value": "\u003e= 1.21.0, \u003c 1.21.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "envoyproxy"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling \u003cenvoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config\u003e` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "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"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-416: Use After Free"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf",
              "refsource": "CONFIRM",
              "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf"
            },
            {
              "name": "https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145",
              "refsource": "MISC",
              "url": "https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-cmx3-fvgf-83mf",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-43826",
    "datePublished": "2022-02-22T22:45:22",
    "dateReserved": "2021-11-16T00:00:00",
    "dateUpdated": "2024-08-04T04:03:09.047Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-43826\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2022-02-22T23:15:10.957\",\"lastModified\":\"2024-11-21T06:29:52.647\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling \u003cenvoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config\u003e` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are no workarounds for this issue. Users are advised to upgrade.\"},{\"lang\":\"es\",\"value\":\"Envoy es un proxy de borde y servicio de c\u00f3digo abierto, dise\u00f1ado para aplicaciones nativas de la nube. En las versiones afectadas de Envoy se produce un bloqueo cuando es configurada para :ref:\\\"upstream tunneling (envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config)\\\" y la conexi\u00f3n de bajada es desconectada mientras sigue estableciendo la conexi\u00f3n de subida o el flujo http/2. No se presentan medidas de mitigaci\u00f3n para este problema. Es recomendado a usuarios actualizar\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:N/A:P\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.18.6\",\"matchCriteriaId\":\"0EFC93D0-C206-417C-81D0-F18145E3D768\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.19.0\",\"versionEndExcluding\":\"1.19.3\",\"matchCriteriaId\":\"2812AC62-44B5-4077-862D-A221CD88981D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.20.0\",\"versionEndExcluding\":\"1.20.2\",\"matchCriteriaId\":\"F5441B2D-F807-4ED9-AFB9-ED4DE07CE5F8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.21.0\",\"versionEndExcluding\":\"1.21.1\",\"matchCriteriaId\":\"83895D03-DAD1-4893-8A1C-F9143DEEC172\"}]}]}],\"references\":[{\"url\":\"https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/envoyproxy/envoy/commit/ce0ae309057a216aba031aff81c445c90c6ef145\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/envoyproxy/envoy/security/advisories/GHSA-cmx3-fvgf-83mf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.