{"id":"ALPINE-CVE-2020-4067","details":"In coturn before version 4.5.1.3, there is an issue whereby STUN/TURN response buffer is not initialized properly. There is a leak of information between different client connections. One client (an attacker) could use their connection to intelligently query coturn to get interesting bytes in the padding bytes from the connection of another client. This has been fixed in 4.5.1.3.","modified":"2026-11-03T06:32:37.417628620Z","published":"2020-06-29T20:15:10.413Z","upstream":["CVE-2020-4067"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2020-4067"}],"affected":[{"package":{"name":"coturn","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}},{"package":{"name":"coturn","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/coturn?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.3-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-4067.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}