CentOS Errata and Bugfix Advisory 2017:0921
Upstream details at : https://rhn.redhat.com/errata/RHBA-2017-0921.html
The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename )
x86_64: e42c85c02de879ed65ac20779d651b0a587251586f7cd89d2aff9257334c1c29 grubby-8.28-21.el7_3.x86_64.rpm
Source: e86ca349608bb7d414af5237038bac16e40e900d398fd79d8403d6e58659de81 grubby-8.28-21.el7_3.src.rpm