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Date: Wed, 3 May 2017 17:55:20 -0700
From: Seth Arnold <>
Subject: Re: rpcbomb: remote rpcbind denial-of-service

On Wed, May 03, 2017 at 08:55:23PM +0200, Guido Vranken wrote:
> This vulnerability allows an attacker to allocate any amount of bytes
> (up to 4 gigabytes per attack) on a remote rpcbind host, and the
> memory is never freed unless the process crashes or the administrator
> halts or restarts the rpcbind service.
> [...]
> An extensive write-up can be found here:
> Exploit + patches:

Hello Guido, nice find. Have CVE numbers been requested for this issue
yet? Have you investigated if ntirpc is affected too? Much of the code
looks similar:


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