Date: Thu, 11 Sep 2008 11:06:33 +0200 From: Tomas Hoger <thoger@...hat.com> To: oss-security@...ts.openwall.com Cc: coley@...us.mitre.org Subject: Re: CVE Request (ruby -- DNS spoofing vulnerability in resolv.rb) On Thu, 4 Sep 2008 12:01:04 -0400 (EDT) "Steven M. Christey" <coley@...us.mitre.org> 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   and adns  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 , adns issue is rather considered a design decision as documented in the INSTALL file .  http://pydns.sourceforge.net/  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=490217  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=492698  http://packages.debian.org/changelogs/pool/main/p/python-dns/python-dns_2.3.3-1/changelog  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=492698#15 -- Tomas Hoger / Red Hat Security Response Team
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