oss-security - Re: CVE Request (ruby -- DNS spoofing vulnerability in resolv.rb)

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Date: Mon, 15 Sep 2008 20:59:40 -0400 (EDT)
From: "Steven M. Christey" <coley@...us.mitre.org>
To: oss-security@...ts.openwall.com
cc: coley@...us.mitre.org
Subject: Re: CVE Request (ruby -- DNS spoofing vulnerability
 in resolv.rb)

On Thu, 11 Sep 2008, Tomas Hoger wrote:

> > We're treating this as a distinct issue because this is *REALLY* bad
> > randomness within a particular implementation, besides the inherent
> > limitation of DNS when source ports are fixed.
>
> Applying this rule, separate id should probably be used for PyDNS [1]
> [2] and adns [3] as well, at they both suffer from the similar flaws -
> use predictable transactions ids and source port.

CVE-2008-4099 - PyDNS

CVE-2008-4100 - adns

- Steve

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