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Date: Fri, 5 Dec 2014 16:04:04 +0000
From: Steve Kemp <>
Subject: Re: CVE Request - dns-sync node module

  This never did receive an allocation, did it?

On Tue Nov 11, 2014 at 20:02:40 +0000, Steve Kemp wrote:
>   The dns-sync library for node.js allows resolving hostnames in
>  a synchronous fashion
>   All versions of dns-sync prior to the release 0.1.1 were
>  vulnerable to arbitrary command execution via maliciously
>  formed hostnames.  For example:
>     var dnsSync = require('dns-sync');
>     console.log(dnsSync.resolve('$(id > /tmp/foo)'));
>   This is caused by the hostname being passed through a shell
>  as part of a command execution.
>   I disclosed/reported this here:
>   The following commit resolves the bug:

Git-based DNS hosting

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