oss-sec mailing list archives

Re: CVE Request : IPv6 Hop limit lowering via RA messages


From: Dan McDonald <danmcd () omniti com>
Date: Thu, 2 Apr 2015 19:55:19 -0400

On Apr 2, 2015, at 1:19 PM, D.S. Ljungmark <ljungmark () modio se> wrote:

An unprivileged user on a local network can use IPv6 Neighbour
Discovery ICMP to broadcast a non-route with a low hop limit, this
causing machines to lower the hop limit on existing IPv6 routes.


This low-hop-limit problem does not affect Illumos, but we added detection of the problem into our IPv6 NDP daemon:  

        https://marc.info/?l=illumos-developer&m=142748230615203&w=2

I can't speak to our cousins in Oracle Solaris, though.

FYI,
Dan McDonald - OmniOS Engineering


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