[10854] in bugtraq
Re: tcpdump 3.4 bug?
daemon@ATHENA.MIT.EDU (Markus Peuhkuri)
Fri Jun 18 12:49:08 1999
Message-Id: <mcun1xxzuda.fsf@ws18.tct.hut.fi>
Date: Fri, 18 Jun 1999 13:16:33 +0300
Reply-To: Markus Peuhkuri <puhuri@TCT.HUT.FI>
From: Markus Peuhkuri <puhuri@TCT.HUT.FI>
To: BUGTRAQ@NETSPACE.ORG
In-Reply-To: acpizer's message of Thu, 17 Jun 1999 12:19:06 +0100
acpizer <acpizer@MACH.UNSEEN.ORG> writes:
> since routers drop the bad packet it creates, a more constuctive patch for
...
> + if (ip->ip_hl == 0) {
Actualy, as the minimum length is 5*4 bytes that could be as
well "if (ip->ip_hl < 5) {". If it is shorter it is bad anyway.
--
Markus Peuhkuri ! Markus.Peuhkuri@hut.fi ! http://www.iki.fi/puhuri/
