A serious security vulnerability discovered in MySQL was disclosed this weekend. It basically allows anyone to bypass authentication and log in directly into the database. We tried on a few 64bit Ubuntu systems and were able to replicate the issue (it seems that only 64 bit platforms are affected).
Crazy theory: Could this be related to the LinkedIn, last.fm, eHarmony and other recent breaches? Did any of them have MySQL exposed? Even worse, was this really a bug or a very clever backdoor? What you guys think?
Anyway, back to topic. Sergei Golubchik explained the issue in detail: