{"id":"DEBIAN-CVE-2020-27638","details":"receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code.","modified":"2026-09-11T11:02:44.805811772Z","published":"2020-10-22T13:15:15.613Z","upstream":["CVE-2020-27638"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2020-27638"}],"affected":[{"package":{"name":"fastd","ecosystem":"Debian:12","purl":"pkg:deb/debian/fastd?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27638.json"}},{"package":{"name":"fastd","ecosystem":"Debian:13","purl":"pkg:deb/debian/fastd?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27638.json"}},{"package":{"name":"fastd","ecosystem":"Debian:14","purl":"pkg:deb/debian/fastd?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-27638.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}