How To Patch / Upgrade BIND 9.x Under FreeBSD Operating System

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Q. BIND 9 is part of core FreeBSD 7.x. How do I apply BIND 9 security patch under FreeBSD 7.x? Do I need to fetch entire source (buildworld) to patch BIND 9? How do I patch up recent BIND 9 DNS cache poisoning bug?

A. No, you don’t have to fetch entire source to patch up BIND 9 if you are running latest stable (6-STABLE or 7-STABLE). The BIND DNS implementation does not randomize the UDP source port when doing remote queries, and the query id alone does not provide adequate randomization.

To fix this issue under FreeBSD 6.3, download patch:
# cd /tmp
# fetch -o bind.patch http://security.FreeBSD.org/patches/SA-08:06/bind63.patch

If you are using FreeBSD 7.0, enter:
# cd /tmp
# fetch -o bind.patch http://security.FreeBSD.org/patches/SA-08:06/bind7.patch

Type the following commands to compile and install bind 9 patch:
# cd /usr/src
# patch < /tmp/bind.patch # cd /usr/src/lib/bind # make obj && make depend && make && make install # cd /usr/src/usr.sbin/named # make obj && make depend && make && make install

Restart bind 9:
# /etc/rc.d/named restart
# tail -f /var/log/messages

Posted by: Vivek Gite

The author is the creator of nixCraft and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.

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7 comment

  1. Since you’re upgrading BIND, you might as well upgrade rndc, too. How about adding this to your “make” section?

    # cd /usr/src/usr.sbin/rndc
    # make obj && make depend && make && make install

  2. I have this error while patching my DNS on freeBSD.

    neon# patch < /root/bind63.patch 
    Hmm...  Looks like a unified diff to me...
    The text leading up to this was:
    --------------------------
    |Index: contrib/bind9/bin/named/client.c
    |===================================================================
    |RCS file: /usr/ncvs/src/contrib/bind9/bin/named/client.c,v
    |retrieving revision 1.1.1.2.2.3
    |diff -u -r1.1.1.2.2.3 client.c
    |--- contrib/bind9/bin/named/client.c	25 Jul 2007 08:23:07 -0000	1.1.1.2.2.3
    |+++ contrib/bind9/bin/named/client.c	10 Jul 2008 16:07:20 -0000
    --------------------------
    File to patch: 
    No file found--skip this patch? [n] 
    File to patch: ^[[A^[[A
    No file found--skip this patch? [n]
  3. i’m also getting the same error as RyAn. new install of fbsd 7, minimal. how do i run the patch without having to to a cvsup and blowing the whole point of having a minimal install?

  4. Use freebsd-update command which is used to fetch, install, and rollback binary updates to the FreeBSD base system. You can also use sysinstall to update system. Read man pages for further information.

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