fkie_cve-2020-11080
Vulnerability from fkie_nvd
Published
2020-06-03 23:15
Modified
2024-11-21 04:56
Severity ?
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.
References
security-advisories@github.comhttp://lists.opensuse.org/opensuse-security-announce/2020-06/msg00024.htmlMailing List, Third Party Advisory
security-advisories@github.comhttps://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/nghttp2/nghttp2/security/advisories/GHSA-q5wr-xfw9-q7xrPatch, Third Party Advisory
security-advisories@github.comhttps://lists.debian.org/debian-lts-announce/2021/10/msg00011.htmlMailing List, Third Party Advisory
security-advisories@github.comhttps://lists.debian.org/debian-lts-announce/2023/10/msg00023.html
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/
security-advisories@github.comhttps://www.debian.org/security/2020/dsa-4696Third Party Advisory
security-advisories@github.comhttps://www.oracle.com//security-alerts/cpujul2021.htmlNot Applicable, Third Party Advisory
security-advisories@github.comhttps://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
security-advisories@github.comhttps://www.oracle.com/security-alerts/cpujan2021.htmlThird Party Advisory
security-advisories@github.comhttps://www.oracle.com/security-alerts/cpujul2020.htmlThird Party Advisory
security-advisories@github.comhttps://www.oracle.com/security-alerts/cpuoct2020.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00024.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nghttp2/nghttp2/security/advisories/GHSA-q5wr-xfw9-q7xrPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/10/msg00011.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4696Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com//security-alerts/cpujul2021.htmlNot Applicable, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujan2021.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujul2020.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuoct2020.htmlThird Party Advisory
Impacted products
Vendor Product Version
nghttp2 nghttp2 *
debian debian_linux 9.0
debian debian_linux 10.0
opensuse leap 15.1
fedoraproject fedora 31
fedoraproject fedora 33
oracle banking_extensibility_workbench 14.3.0
oracle banking_extensibility_workbench 14.4.0
oracle blockchain_platform *
oracle enterprise_communications_broker 3.1.0
oracle enterprise_communications_broker 3.2.0
oracle graalvm 19.3.2
oracle graalvm 20.1.0
oracle mysql *
oracle mysql *
oracle mysql *
oracle mysql *
oracle mysql *
nodejs node.js *
nodejs node.js *
nodejs node.js *
nodejs node.js *
nodejs node.js *


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., \u003e 32), then drop the connection."
    },
    {
      "lang": "es",
      "value": "En nghttp2 versiones anteriores a 1.41.0, la carga \u00fatil de la trama HTTP/2 SETTINGS demasiado grande causa una denegaci\u00f3n de servicio. El ataque de prueba de concepto involucra a un cliente malicioso que construye una trama SETTINGS con una longitud de 14,400 bytes (2400 entradas de configuraciones individuales) una y otra vez. El ataque causa que la CPU se aumente al 100%. nghttp2 versi\u00f3n v1.41.0 corrige esta vulnerabilidad. Existe una soluci\u00f3n alternativa a esta vulnerabilidad. Implemente la funci\u00f3n nghttp2_on_frame_recv_callback callback, y si la trama es recibida es la trama SETTINGS y el n\u00famero de entradas de configuraci\u00f3n es grande (por ejemplo, mayor a 32), luego desconecte la conexi\u00f3n"
    }
  ],
  "id": "CVE-2020-11080",
  "lastModified": "2024-11-21T04:56:44.657",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "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",
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        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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    ]
  },
  "published": "2020-06-03T23:15:11.073",
  "references": [
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      "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-707"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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.