{"id":"DEBIAN-CVE-2006-5873","details":"Buffer overflow in the cluster_process_heartbeat function in cluster.c in layer 2 tunneling protocol network server (l2tpns) before 2.1.21 allows remote attackers to cause a denial of service via a large heartbeat packet.","modified":"2026-09-12T06:47:21.880879452Z","published":"2006-12-12T00:28:00Z","upstream":["CVE-2006-5873"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2006-5873"}],"affected":[{"package":{"name":"l2tpns","ecosystem":"Debian:12","purl":"pkg:deb/debian/l2tpns?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.21-1"}]}],"ecosystem_specific":{"urgency":"medium"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-5873.json"}},{"package":{"name":"l2tpns","ecosystem":"Debian:13","purl":"pkg:deb/debian/l2tpns?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.21-1"}]}],"ecosystem_specific":{"urgency":"medium"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-5873.json"}},{"package":{"name":"l2tpns","ecosystem":"Debian:14","purl":"pkg:deb/debian/l2tpns?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.21-1"}]}],"ecosystem_specific":{"urgency":"medium"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-5873.json"}}],"schema_version":"1.9.0"}