IV.  Workaround

No workaround is available, but systems that do not provide TCP based
service to untrusted networks are not vulnerable.
Note that the tcpdrop(8) utility can be used to purge connections 
which
have become wedged.  For example, the following command can be used 
to
generate commands that would drop all connections whose last rcvtime 
is
more than 100s:

        netstat -nxp tcp | \
        awk '{ if (int($NF) > 100) print "tcpdrop " $4 " " $5 }'

The system administrator can then run the generated script as a temporary
measure.  Please refer to the tcpdump(8) manual page for additional
information.
It should be tcpdrop(8), isn't it?

Zahy < Gabor at Zahemszky dot HU >
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