BIND 9 question

[Doug Barton]

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On 11/17/2011 08:31, Albert Thiel wrote:
> I have been hearing that since last night DNS 0-day exploitation is
>  taking place all over the net.

I dislike the term "0-day" because it means different things to
different people. What is true is that a large number of BIND recursive
name servers have been crashing with the same error messages, which
seems to be the result of an active and heretofore unknown exploit.

https://www.isc.org/software/bind/advisories/cve-2011-4313

> ISC mentions recursion.  Is this vulnerability only on DNS that 
> allows recursive queries? (if so mine is safe thankfully).

At this time it appears true that authoritative-only servers are not
vulnerable.

> Is there a patch to the BSD flavor of BIND expected to address
> this?

The ports, 10-current, stable/8 and stable/7 were all updated yesterday
shortly after ISC publicly released the code.


hth,

Doug

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