{"id":"BIT-node-2020-11080","summary":"Denial of service in nghttp2","details":"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.","aliases":["BIT-node-min-2020-11080","CVE-2020-11080"],"modified":"2025-05-20T10:02:07.006Z","published":"2024-03-06T11:08:52.092Z","database_specific":{"cpes":["cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*","cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00024.html"},{"type":"WEB","url":"https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090"},{"type":"WEB","url":"https://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394"},{"type":"WEB","url":"https://github.com/nghttp2/nghttp2/security/advisories/GHSA-q5wr-xfw9-q7xr"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/"},{"type":"WEB","url":"https://www.debian.org/security/2020/dsa-4696"},{"type":"WEB","url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuapr2022.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujan2021.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujul2020.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuoct2020.html"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11080"}],"affected":[{"package":{"name":"node","ecosystem":"Bitnami","purl":"pkg:bitnami/node"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.13.0"},{"fixed":"10.21.0"},{"introduced":"12.13.0"},{"fixed":"12.18.0"},{"introduced":"14.0.0"},{"fixed":"14.4.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/node/BIT-node-2020-11080.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.7.3"}