cve-2024-30255
Vulnerability from cvelistv5
Published
2024-04-04 19:41
Modified
2024-08-02 01:32
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
HTTP/2: CPU exhaustion due to CONTINUATION frame flood
References
security-advisories@github.comhttp://www.openwall.com/lists/oss-security/2024/04/03/16
security-advisories@github.comhttp://www.openwall.com/lists/oss-security/2024/04/05/3
security-advisories@github.comhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-j654-3ccm-vfmm
Impacted products
envoyproxyenvoy
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "envoy",
            "vendor": "envoyproxy",
            "versions": [
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                "status": "affected",
                "version": "1.29.0",
                "versionType": "custom"
              },
              {
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                "status": "affected",
                "version": "1.28.0",
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              },
              {
                "lessThan": "1.27.4",
                "status": "affected",
                "version": "1.27.0",
                "versionType": "custom"
              },
              {
                "lessThan": "1.26.8",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-30255",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-04-08T14:58:49.679014Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-16T13:47:51.426Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T01:32:05.423Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j654-3ccm-vfmm",
            "tags": [
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            ],
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            "url": "http://www.openwall.com/lists/oss-security/2024/04/05/3"
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            "url": "http://www.openwall.com/lists/oss-security/2024/04/03/16"
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        "title": "CVE Program Container"
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    ],
    "cna": {
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          "vendor": "envoyproxy",
          "versions": [
            {
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              "version": "\u003e= 1.29.0, \u003c 1.29.3"
            },
            {
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              "version": "\u003e= 1.28.0, \u003c 1.28.2"
            },
            {
              "status": "affected",
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            },
            {
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              "version": "\u003c 1.26.8"
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      "descriptions": [
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          "value": "Envoy is a cloud-native, open source edge and service proxy. The HTTP/2 protocol stack in Envoy versions prior to 1.29.3, 1.28.2, 1.27.4, and 1.26.8 are vulnerable to CPU exhaustion due to flood of CONTINUATION frames. Envoy\u0027s HTTP/2 codec allows the client to send an unlimited number of CONTINUATION frames even after exceeding Envoy\u0027s header map limits. This allows an attacker to send a sequence of CONTINUATION frames without the END_HEADERS bit set causing CPU utilization, consuming approximately 1 core per 300Mbit/s of traffic and culminating in denial of service through CPU exhaustion. Users should upgrade to version 1.29.3, 1.28.2, 1.27.4, or 1.26.8 to mitigate the effects of the CONTINUATION flood. As a workaround, disable HTTP/2 protocol for downstream connections."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
            "version": "3.1"
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      "providerMetadata": {
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        "advisory": "GHSA-j654-3ccm-vfmm",
        "discovery": "UNKNOWN"
      },
      "title": "HTTP/2: CPU exhaustion due to CONTINUATION frame flood"
    }
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  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-30255",
    "datePublished": "2024-04-04T19:41:02.634Z",
    "dateReserved": "2024-03-26T12:52:00.934Z",
    "dateUpdated": "2024-08-02T01:32:05.423Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-30255\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2024-04-04T20:15:08.983\",\"lastModified\":\"2024-05-01T18:15:19.723\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"Envoy is a cloud-native, open source edge and service proxy. The HTTP/2 protocol stack in Envoy versions prior to 1.29.3, 1.28.2, 1.27.4, and 1.26.8 are vulnerable to CPU exhaustion due to flood of CONTINUATION frames. Envoy\u0027s HTTP/2 codec allows the client to send an unlimited number of CONTINUATION frames even after exceeding Envoy\u0027s header map limits. This allows an attacker to send a sequence of CONTINUATION frames without the END_HEADERS bit set causing CPU utilization, consuming approximately 1 core per 300Mbit/s of traffic and culminating in denial of service through CPU exhaustion. Users should upgrade to version 1.29.3, 1.28.2, 1.27.4, or 1.26.8 to mitigate the effects of the CONTINUATION flood. As a workaround, disable HTTP/2 protocol for downstream connections.\"},{\"lang\":\"es\",\"value\":\"Envoy es un proxy de servicio y borde de c\u00f3digo abierto, nativo de la nube. La pila de protocolos HTTP/2 en las versiones de Envoy anteriores a 1.29.3, 1.28.2, 1.27.4 y 1.26.8 son vulnerables al agotamiento de la CPU debido a la inundaci\u00f3n de tramas de CONTINUACI\u00d3N. El c\u00f3dec HTTP/2 de Envoy permite al cliente enviar un n\u00famero ilimitado de tramas de CONTINUACI\u00d3N incluso despu\u00e9s de exceder los l\u00edmites del mapa de encabezado de Envoy. Esto permite a un atacante enviar una secuencia de tramas CONTINUATION sin que el bit END_HEADERS est\u00e9 configurado causando la utilizaci\u00f3n de la CPU, consumiendo aproximadamente 1 n\u00facleo por cada 300 Mbit/s de tr\u00e1fico y culminando en una denegaci\u00f3n de servicio por agotamiento de la CPU. Los usuarios deben actualizar a la versi\u00f3n 1.29.3, 1.28.2, 1.27.4 o 1.26.8 para mitigar los efectos de la inundaci\u00f3n de CONTINUACI\u00d3N. Como workaround, deshabilite el protocolo HTTP/2 para conexiones descendentes.\"}],\"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:L\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-390\"}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2024/04/03/16\",\"source\":\"security-advisories@github.com\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2024/04/05/3\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/envoyproxy/envoy/security/advisories/GHSA-j654-3ccm-vfmm\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}


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