Date: Tue, 25 Nov 1997 12:55:23 -0800 (PST) From: Doug White <dwhite@gdi.uoregon.edu> To: "Oliver R. Wang " <fwang2@cobblers.csc.ncsu.edu> Cc: FreeBSD Questions <freebsd-questions@FreeBSD.ORG> Subject: Re: land attack - technical explaination? Message-ID: <Pine.BSF.3.96.971125125406.17459T-100000@gdi.uoregon.edu> In-Reply-To: <Pine.BSF.3.96.971124133519.12988E-100000@cobblers.csc.ncsu.edu>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, 24 Nov 1997, Oliver R. Wang wrote: > > Hi there > > What I know about "land" attack is that it send a TCP packet with source > address, source port, destination address, destination port set as the > same. My question is can someone explain to me why this will cause system > degradation or even crash? What's fix in FreeBSD? >From my extremely layman's viewpoint on this, it tries to get the computer to connect to itself. A "quick fix hack" has been committed to -CURRENT and -STABLE. A security advisory is probably following. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.3.96.971125125406.17459T-100000>