Grub2 Backspace Weakness

[Grizzly]

Hi All

I get the Security Notices but as I get 2 or more a day I usually skip to the 
end where it says "fixed by standard update / upgrade"  so I dent really read 
the rest so 

Has the "Grub2 Backspace Weakness" been fixed / patched ?

Ps running 14.04.3