Unfortunately Oracle's stewardship of MySQL appears to be a closed model. There is no public access to their bug tracker, and distributions struggle to keep up with security updates because the details of their fixes in the source are not published. The future of MySQL appears to be in one of the MySQL forks.
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It looks like this is being tracked in Ubuntu here: https://bugs.launchpad.net/bugs/1011371
Unfortunately Oracle's stewardship of MySQL appears to be a closed model. There is no public access to their bug tracker, and distributions struggle to keep up with security updates because the details of their fixes in the source are not published. The future of MySQL appears to be in one of the MySQL forks.
See https://lists.ubuntu.com/archives/ubuntu-server/2012-Februar... and https://lists.ubuntu.com/archives/ubuntu-server/2012-Februar... for details.
What about http://bugs.mysql.com/?