{
  "id": "CVE-2021-39204",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2021-09-09T22:15:09.773",
  "lastModified": "2021-09-27T18:30:56.377",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, incorrectly handles resetting of HTTP/2 streams with excessive complexity. This can lead to high CPU utilization when a large number of streams are reset. This can result in a DoS condition. Pomerium versions 0.14.8 and 0.15.1 contain an upgraded envoy binary with this vulnerability patched."
    },
    {
      "lang": "es",
      "value": "Pomerium es un proxy de acceso de c\u00f3digo abierto consciente de la identidad. Envoy, en el que es basado Pomerium, maneja inapropiadamente el restablecimiento de los flujos HTTP/2 con una complejidad excesiva. Esto puede conllevar a un alto uso de la CPU cuando es restablecido un gran n\u00famero de flujos. Esto puede resultar en una condici\u00f3n de DoS. Las versiones 0.14.8 y 0.15.1 de Pomerium contienen un binario envoy actualizado con esta vulnerabilidad parcheada"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
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        "source": "security-advisories@github.com",
        "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",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "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,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-834"
        }
      ]
    },
    {
      "source": "security-advisories@github.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-834"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "1.16.4",
              "matchCriteriaId": "2FA474E1-2F0F-44D7-938F-40EE9DB5C230"
            },
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              "criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.17.0",
              "versionEndExcluding": "1.17.4",
              "matchCriteriaId": "83547329-1394-417F-93DB-70C1A9D173B0"
            },
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              "criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.18.0",
              "versionEndExcluding": "1.18.4",
              "matchCriteriaId": "D7376E28-9915-4CA1-A5DB-40874D10E781"
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            },
            {
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              "criteria": "cpe:2.3:a:pomerium:pomerium:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "0.14.8",
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  "references": [
    {
      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc",
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/pomerium/pomerium/security/advisories/GHSA-5wjf-62hw-q78r",
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ",
      "source": "security-advisories@github.com",
      "tags": [
        "Not Applicable"
      ]
    }
  ]
}