{"id":"ALPINE-CVE-2020-15166","details":"In ZeroMQ before version 4.3.3, there is a denial-of-service vulnerability. Users with TCP transport public endpoints, even with CURVE/ZAP enabled, are impacted. If a raw TCP socket is opened and connected to an endpoint that is fully configured with CURVE/ZAP, legitimate clients will not be able to exchange any message. Handshakes complete successfully, and messages are delivered to the library, but the server application never receives them. This is patched in version 4.3.3.","modified":"2025-12-03T22:48:29.610694Z","published":"2020-09-11T16:15:12.177Z","upstream":["CVE-2020-15166"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2020-15166"}],"affected":[{"package":{"name":"zeromq","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/zeromq?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-r0"}]}],"versions":["2.0.10-r0","2.1.10-r0","2.1.11-r0","2.1.7-r0","2.1.7-r1","2.1.7-r2","2.2.0-r0","2.2.0-r1","3.2.2-r0","3.2.3-r0","3.2.3-r1","3.2.4-r0","4.0.4-r0","4.0.5-r0","4.1.1-r0","4.1.2-r0","4.1.3-r0","4.1.3-r1","4.1.3-r2","4.1.3-r3","4.1.4-r0","4.1.5-r0","4.1.5-r1","4.2.2-r0","4.2.2-r1","4.2.2-r2","4.2.3-r0","4.2.5-r0","4.3.1-r0","4.3.2-r0","4.3.2-r1"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-15166.json"}},{"package":{"name":"zeromq","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/zeromq?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-r0"}]}],"versions":["2.0.10-r0","2.1.10-r0","2.1.11-r0","2.1.7-r0","2.1.7-r1","2.1.7-r2","2.2.0-r0","2.2.0-r1","3.2.2-r0","3.2.3-r0","3.2.3-r1","3.2.4-r0","4.0.4-r0","4.0.5-r0","4.1.1-r0","4.1.2-r0","4.1.3-r0","4.1.3-r1","4.1.3-r2","4.1.3-r3","4.1.4-r0","4.1.5-r0","4.1.5-r1","4.2.2-r0","4.2.2-r1","4.2.2-r2","4.2.3-r0","4.2.5-r0","4.3.1-r0","4.3.2-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-15166.json"}},{"package":{"name":"zeromq","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/zeromq?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-r0"}]}],"versions":["2.0.10-r0","2.1.10-r0","2.1.11-r0","2.1.7-r0","2.1.7-r1","2.1.7-r2","2.2.0-r0","2.2.0-r1","3.2.2-r0","3.2.3-r0","3.2.3-r1","3.2.4-r0","4.0.4-r0","4.0.5-r0","4.1.1-r0","4.1.2-r0","4.1.3-r0","4.1.3-r1","4.1.3-r2","4.1.3-r3","4.1.4-r0","4.1.5-r0","4.1.5-r1","4.2.2-r0","4.2.2-r1","4.2.2-r2","4.2.3-r0","4.2.5-r0","4.3.1-r0","4.3.2-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-15166.json"}},{"package":{"name":"zeromq","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/zeromq?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-r0"}]}],"versions":["2.0.10-r0","2.1.10-r0","2.1.11-r0","2.1.7-r0","2.1.7-r1","2.1.7-r2","2.2.0-r0","2.2.0-r1","3.2.2-r0","3.2.3-r0","3.2.3-r1","3.2.4-r0","4.0.4-r0","4.0.5-r0","4.1.1-r0","4.1.2-r0","4.1.3-r0","4.1.3-r1","4.1.3-r2","4.1.3-r3","4.1.4-r0","4.1.5-r0","4.1.5-r1","4.2.2-r0","4.2.2-r1","4.2.2-r2","4.2.3-r0","4.2.5-r0","4.3.1-r0","4.3.2-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-15166.json"}},{"package":{"name":"zeromq","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/zeromq?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-r0"}]}],"versions":["2.0.10-r0","2.1.10-r0","2.1.11-r0","2.1.7-r0","2.1.7-r1","2.1.7-r2","2.2.0-r0","2.2.0-r1","3.2.2-r0","3.2.3-r0","3.2.3-r1","3.2.4-r0","4.0.4-r0","4.0.5-r0","4.1.1-r0","4.1.2-r0","4.1.3-r0","4.1.3-r1","4.1.3-r2","4.1.3-r3","4.1.4-r0","4.1.5-r0","4.1.5-r1","4.2.2-r0","4.2.2-r1","4.2.2-r2","4.2.3-r0","4.2.5-r0","4.3.1-r0","4.3.2-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-15166.json"}},{"package":{"name":"zeromq","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/zeromq?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-r0"}]}],"versions":["2.0.10-r0","2.1.10-r0","2.1.11-r0","2.1.7-r0","2.1.7-r1","2.1.7-r2","2.2.0-r0","2.2.0-r1","3.2.2-r0","3.2.3-r0","3.2.3-r1","3.2.4-r0","4.0.4-r0","4.0.5-r0","4.1.1-r0","4.1.2-r0","4.1.3-r0","4.1.3-r1","4.1.3-r2","4.1.3-r3","4.1.4-r0","4.1.5-r0","4.1.5-r1","4.2.2-r0","4.2.2-r1","4.2.2-r2","4.2.3-r0","4.2.5-r0","4.3.1-r0","4.3.2-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-15166.json"}},{"package":{"name":"zeromq","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/zeromq?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-r0"}]}],"versions":["2.0.10-r0","2.1.10-r0","2.1.11-r0","2.1.7-r0","2.1.7-r1","2.1.7-r2","2.2.0-r0","2.2.0-r1","3.2.2-r0","3.2.3-r0","3.2.3-r1","3.2.4-r0","4.0.4-r0","4.0.5-r0","4.1.1-r0","4.1.2-r0","4.1.3-r0","4.1.3-r1","4.1.3-r2","4.1.3-r3","4.1.4-r0","4.1.5-r0","4.1.5-r1","4.2.2-r0","4.2.2-r1","4.2.2-r2","4.2.3-r0","4.2.5-r0","4.3.1-r0","4.3.2-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-15166.json"}},{"package":{"name":"zeromq","ecosystem":"Alpine:v3.17","purl":"pkg:apk/al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