Unofficial FreeBSD patchfile with recommended unused bit attack patch from LigerTeam.
bd4b03760419f88ad3e8c031f8c9e3f2f739d9d5a86f4e8719b6f93466529135
--- tcp_input.c.orig Thu Feb 24 21:22:58 2000
+++ tcp_input.c Thu Feb 24 21:30:44 2000
@@ -480,2 +480,10 @@
}
+
+ /*
+ * Recommended fix for unused bit attack
+ * from the LigerTeam - http://liger.fnetwork.com
+ * - Omachonu Ogali <oogali@intranova.net>
+ */
+
+ th->th_flags = th->th_flags & 0x3f;
thflags = th->th_flags;