MySQL Community Server < 5.1.48 Denial of Service (no replies)

Hi,
I have MySSQL 5.1.42-community server install on Windows 2008 server platform. When I run vulnerability check, I get below:

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The version of MySQL Community Server installed on the remote host is earlier than 5.1.48 and thus potentially affected by a denial of service vulnerability.
The 'ALTER DATABASE' command can be misused by a user with 'ALTER' permissions to cause the MySQL data directory to become unusable.

http://bugs.mysql.com/bug.php?id=53804
http://dev.mysql.com/doc/refman/5.1/en/news-5-1-48.html
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How do I fix this issue without Upgrading to 5.1.48 ?. If this is not possible, what is the easiest way of upgrading from 5.1.42 to 5.1.48. I am hoping that I do not have to remove everything to upgrade to next version which is very small difference. I am scared to death if I have to remove previous verison and install 5.1.48 version from scratch and reimport data etc.



Also, Is there anyway I can avoid exporting existing data from all database and import back after upgrade ?. Please point me to step by step process if any avaialable

Thanks in Advance.