CentOS Errata and Bugfix Advisory 2015:2011 

Upstream details at : https://rhn.redhat.com/errata/RHBA-2015-2011.html

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

i386:
30ee73ceb1cfd42756d10c3965b273e7b54c700591334ce46d456cba3bc9f54a  grep-2.20-3.el6_7.1.i686.rpm

x86_64:
5d5dd440313f0b778c947bfc8febddfb36d72d94ca24b90af77775000e63e672  grep-2.20-3.el6_7.1.x86_64.rpm

Source:
b8407de7352dde0186d02acc2ede8da58acfff7a376bfea75a845c7a7498d638  grep-2.20-3.el6_7.1.src.rpm