it's probably not as bad as you might think
All Junos software releases built on or after January 28, 2009 have fixed this specific issue.
In short, we fixed this particular problem about 350 days ago.
Given that regular (non-Extended End of Life) Junos releases have a 9 month shelf life there's a really good chance that your Junos devices were already running a release that does not have this specific issue before you learned of the issue.
If you're still running a version of Junos that's older than January 27, 2009, you should plan your upgrade properly and begin upgrading your devices in a methodical way.
If you need some more information, please reach out to your Juniper account team and your Juniper reseller.
There's also a lot of great information on Junos Central. http://www.juniper.net/junos/
Disclaimer: I work for Juniper as a Systems Engineer.
Biting the hand that feeds IT
