[Pdns-users] Crappy DNS query make Mysql/Pdns crash

[Lorens Kockum]

On Mon, Mar 29, 2004 at 06:04:23PM +0200, Antoine Levavasseur wrote:
> By the way, in my log '%20toto.mydomain.com' query is just
> "discarded as malformed qdomain '%20toto.mydomain.com' dropping"
> 
> But a 'www.%20toto.mydomain.com' query leads to a 
> select content,ttl,prio,type,domain_id,name from records where type='NS'
> and name like '%20toto.mydomain.com' and domain_id='1'
> and lock the MySQL server for some time which can be fatal for my
> pdns instance.

Hmmm. Couldn't there be a problem with 36 queries like
"a%.example.com", "b%.example.com", ... "9%.example.com"
resulting in an effective zone transfer ?

-- 
#include <std_disclaim.h>     Salut Tonio       Lorens Kockum