Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 11 Sep 2008 11:06:33 +0200
From: Tomas Hoger <>
Subject: Re: CVE Request (ruby -- DNS spoofing vulnerability
 in resolv.rb)

On Thu, 4 Sep 2008 12:01:04 -0400 (EDT) "Steven M. Christey"
<> wrote:

> > The transaction IDs are assigned in sequential (n+1 order) and the
> > source ports are always the same.
> Use CVE-2008-3905, to be filled in soon.
> 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.

PyDNS should be fixed as of upstream version 2.3.2 [4], adns issue is
rather considered a design decision as documented in the INSTALL file


Tomas Hoger / Red Hat Security Response Team

Powered by blists - more mailing lists

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.