Date: Sat, 24 Oct 1998 00:15:22 -0700 From: Don Lewis <Don.Lewis@tsc.tdk.com> To: Kris Kennaway <kkennawa@physics.adelaide.edu.au>, current@FreeBSD.ORG Subject: Re: nestea v2 against freebsd 3.0-Release (fwd) Message-ID: <199810240715.AAA23010@salsa.gv.tsc.tdk.com> In-Reply-To: Kris Kennaway <kkennawa@physics.adelaide.edu.au> "nestea v2 against freebsd 3.0-Release (fwd)" (Oct 24, 12:07pm)
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On Oct 24, 12:07pm, Kris Kennaway wrote:
} Subject: nestea v2 against freebsd 3.0-Release (fwd)
} I tested this against myself this morning and it panicked the machine - I had
} to run as root to hit the 127.0.0.1 target, but perhaps someone could confirm
} whether it works against remote machines?
Huh? The copy of nestea2 that I've got (from a bugtraq message) won't even
run under 3.0. The last sendto() fails with errno == EINVAL. If I bypass
the sanity check in rip_output() that looks for the bogus length in the IP
header, then the program runs but I don't see any crashes. All that happens
is that the equivalent sanity check in ip_input() detects the problem and
increments ipstat.ips_tooshort. I can see this in netstat -s
ip:
6814 total packets received
0 bad header checksums
---> 2000 with size smaller than minimum
---> 2000 with data size < data length
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