{"id":"ALPINE-CVE-2021-3468","details":"A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered.","modified":"2026-08-27T22:18:01.623244975Z","published":"2021-06-02T16:15:08.960Z","upstream":["CVE-2021-3468"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2021-3468"}],"affected":[{"package":{"name":"avahi","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r3"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}},{"package":{"name":"avahi","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/avahi?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6"},{"fixed":"0.8-r4"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-3468.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}