CVE-2012-2663 Information

Description

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.

Reference

http://www.spinics.net/lists/netfilter-devel/msg21248.html https://bugzilla.redhat.com/show_bug.cgi?id=826702