{"id":"ALPINE-CVE-2020-11080","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.","modified":"2026-09-11T10:17:51.364591495Z","published":"2020-06-03T23:15:11.073Z","upstream":["CVE-2020-11080"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2020-11080"}],"affected":[{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.39.2-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.40.0-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-11080.json"}},{"package":{"name":"nghttp2","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/nghttp2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.41.0-r0"}]}],"ec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