cve-2020-11080
Vulnerability from cvelistv5
Published
2020-06-03 00:00
Modified
2024-08-04 11:21
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 Version: < 1.41.0
Create a notification for this product.
Show details on NVD website


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         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., > 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",
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         published: "2020-06-03T23:15:11.073",
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         sourceIdentifier: "security-advisories@github.com",
         vulnStatus: "Modified",
         weaknesses: "[{\"source\": \"security-advisories@github.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-707\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-400\"}]}]",
      },
      nvd: "{\"cve\":{\"id\":\"CVE-2020-11080\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2020-06-03T23:15:11.073\",\"lastModified\":\"2024-11-21T04:56:44.657\",\"vulnStatus\":\"Modified\",\"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., > 32), then drop the connection.\"},{\"lang\":\"es\",\"value\":\"En nghttp2 versiones anteriores a 1.41.0, la carga útil de la trama HTTP/2 SETTINGS demasiado grande causa una denegación 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 versión v1.41.0 corrige esta vulnerabilidad. Existe una solución alternativa a esta vulnerabilidad. Implemente la función nghttp2_on_frame_recv_callback callback, y si la trama es recibida es la trama SETTINGS y el número de entradas de configuración es grande (por ejemplo, mayor a 32), luego desconecte la 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   },
}


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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.
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  • 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.