{"id":"DEBIAN-CVE-2012-2663","details":"extensions/libxt_tcp.c in iptables through 1.4.21 does not match TCP SYN+FIN packets in --syn rules, which might allow remote attackers to bypass intended firewall restrictions via crafted packets.  NOTE: the CVE-2012-6638 fix makes this issue less relevant.","modified":"2026-09-05T06:47:31.181958154Z","published":"2014-02-15T14:57:07.423Z","upstream":["CVE-2012-2663"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2012-2663"}],"affected":[{"package":{"name":"iptables","ecosystem":"Debian:12","purl":"pkg:deb/debian/iptables?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.10-1","1.8.10-2","1.8.10-3","1.8.10-4","1.8.11-1","1.8.11-2","1.8.11-3","1.8.11-4","1.8.12-1","1.8.12-2","1.8.13-1","1.8.9-2"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-2663.json"}},{"package":{"name":"iptables","ecosystem":"Debian:13","purl":"pkg:deb/debian/iptables?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.11-2","1.8.11-3","1.8.11-4","1.8.12-1","1.8.12-2","1.8.13-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-2663.json"}},{"package":{"name":"iptables","ecosystem":"Debian:14","purl":"pkg:deb/debian/iptables?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.11-2","1.8.11-3","1.8.11-4","1.8.12-1","1.8.12-2","1.8.13-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-2663.json"}}],"schema_version":"1.9.0"}