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Date:      Wed, 16 Feb 2011 08:07:00 -0600
From:      <Eric_vanGyzen@McAfee.com>
To:        <freebsd-security@freebsd.org>
Subject:   BIND 9.7.3 -- TCP DoS in SO_ACCEPTFILTER
Message-ID:  <35F3A97D5BAF454C84582219ABFAE3EC010AD9A7FB59@AMERDALEXMB1.corp.nai.org>

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The release notes for BIND 9.7.3 contain this:

     * A bug in NetBSD and FreeBSD kernels with SO_ACCEPTFILTER enabled
       allows for a TCP DoS attack. Until there is a kernel fix, ISC is
       disabling SO_ACCEPTFILTER support in BIND. [RT #22589]

The CHANGES file also says:

    2996.   [security]      Temporarily disable SO_ACCEPTFILTER support.
                            [RT #22589]

Can anyone tell me more?  What releases are affected?  Is a kernel patch in=
 the works?

Thanks in advance,

Eric



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