{
  "id": "CVE-2021-39162",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2021-09-09T22:15:09.050",
  "lastModified": "2021-09-27T14:25:03.920",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, can abnormally terminate if an H/2 GOAWAY and SETTINGS frame are received in the same IO event. This can lead to a DoS in the presence of untrusted *upstream* servers. 0.15.1 contains an upgraded envoy binary with this vulnerability patched. If only trusted upstreams are configured, there is not substantial risk of this condition being triggered."
    },
    {
      "lang": "es",
      "value": "Pomerium es un proxy de acceso de c\u00f3digo abierto consciente de la identidad. Envoy, en el que es basado Pomerium, puede terminar anormalmente si se recibe una trama H/2 GOAWAY y SETTINGS en el mismo evento IO. Esto puede conllevar a un DoS en presencia de servidores *upstream* no confiables. La versi\u00f3n 0.15.1 contiene un binario envoy actualizado con esta vulnerabilidad parcheada. Si s\u00f3lo se configuran upstreams confiables, no se presenta un riesgo sustancial de que se desencadene esta condici\u00f3n"
    }
  ],
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        "type": "Primary",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 8.6,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.0
      },
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        "type": "Secondary",
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          "privilegesRequired": "NONE",
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          "scope": "CHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
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      }
    ],
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
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          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
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        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
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    {
      "source": "security-advisories@github.com",
      "type": "Primary",
      "description": [
        {
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          "value": "CWE-754"
        }
      ]
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  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.18.4",
              "matchCriteriaId": "87D8ACC9-935D-48FC-8916-0452548EE337"
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  "references": [
    {
      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j374-mjrw-vvp8",
      "source": "security-advisories@github.com",
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      "url": "https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ",
      "source": "security-advisories@github.com",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
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    }
  ]
}