CentOS Errata and Bugfix Advisory 2016:0003 

Upstream details at : https://rhn.redhat.com/errata/RHBA-2016-0003.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( sha256sum Filename ) 

x86_64:
06646ae1714979c117928d35562b3a35e96ca5072061787099fb76ac82be2780  grub2-2.02-0.34.el7.centos.x86_64.rpm
fc1a4217ca08f410c3313384e47884993146e461eea2a2cb5a544bbef2334d9d  grub2-efi-2.02-0.34.el7.centos.x86_64.rpm
3909345fd3709f3f5651e1b682562f050dfe546ecaf0362c1615738467fe6d6d  grub2-efi-modules-2.02-0.34.el7.centos.x86_64.rpm
b9d0e2025da4f1e226fb2731ec8bb9657ef13e1ea50037fbf2dba48a177a378f  grub2-tools-2.02-0.34.el7.centos.x86_64.rpm

Source:
622fe616ae383de191984d6aad0d336b3d574c14b4e14d8b7a571f22fc0953f4  grub2-2.02-0.34.el7.centos.src.rpm