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Date: Tue, 28 Jul 2009 12:08:25 -0600
From: Vincent Danen <vdanen@...hat.com>
To: oss-security@...ts.openwall.com
Subject: debian bug report on bind9 DoS
There's a bind 9 DoS reported in Debian's BTS [1] that provides a
reproducer and some interesting info on a bind9 crash. I don't think
it's a huge problem with a well-secured bind9 configuration, but could
be quite problematic for bind config's that allow updates without an
RNDC key (typical of some dynamic DNS implementations), or on a system
that has lax enough permissions that the RNDC key is exposed.
We don't ship bind 8 so I cannot say whether or not it only affects bind
9 or earlier versions. Some further information is in our bugzilla from
some quick testing I did [2].
This probably requires a CVE name.
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=538975
[2] https://bugzilla.redhat.com/show_bug.cgi?id=514292
--
Vincent Danen / Red Hat Security Response Team
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