{"id":"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":"2026-04-10T03:42:20.020107Z","published":"2014-02-15T14:57:07Z","references":[{"type":"ADVISORY","url":"http://www.spinics.net/lists/netfilter-devel/msg21248.html"},{"type":"ADVISORY","url":"https://bugzilla.redhat.com/show_bug.cgi?id=826702"},{"type":"FIX","url":"http://www.spinics.net/lists/netfilter-devel/msg21248.html"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=826702"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=826702"}],"schema_version":"1.7.5"}