The full technical details of the dns flaw are out now:
http://www.hescominsoon.com/archives/906
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As crashtestdummy stated, it is resolved in the current 7.300 beta (7.260).
I apologize for being unable to resolve this issue with you at this time as
our licensing records indicate that your license is for "Home Use only", this
support service is for our commercial customers only. For Home Users we
provide several online resources such as our knowledgebase www.astaro.com/kb
and our UBB www.astaro.org Also, a Home Use license is strictly for
non-commercial use, our commercial packages start at a very attractive price
of $290. For further information on commercial licensing please contact Astaro
Sales salesus@astaro.com.
For DNS the DNS proxy forwarder should be set to a currently patched upstream
DNS server which eliminates the vulnerbility.
We are adding in the new bind information in up2date 7.300 to ensure all
system checks even when the upstream DNS server is vulnerable.