Mozilla Foundation has released version 3.6.2 of its Firefox browser a week early. The group had said the update would be available March 30.

The update fixes a widely reported vulnerability (CVE-2010-1028) that prompted Germany’s CERT to advise Web users to switch to another browser until a fix was made. (My blog post “Germany’s CERT warns against Firefox use” )

Intevydis researcher Evgeny Legerov  had found that Wide Open Font Format decoder in Firefox had an integer overflow in its font decompression mechanism. The flaw involved a memory buffer that was too small to handle a downloadable font. Legerov had found that exploiting the vulnerability could crash a victim’s browser making it possible to run arbitrary code on the system.

If you use Firefox, update here.

Security advisories for Firefox 3.6 here.