CentOS Errata and Bugfix Advisory 2016:1398 

Upstream details at : https://rhn.redhat.com/errata/RHBA-2016-1398.html

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

i386:
4f0fd724b83152c25d4ade110d436b0b09e26d88d8b669506062d6f2ed9c6afe  yum-3.2.29-75.el6.centos.noarch.rpm
a6599ce85c7e40f43b57521d2bf6b5bd95e7b5ffba389852033e5272311808ef  yum-cron-3.2.29-75.el6.centos.noarch.rpm

x86_64:
4f0fd724b83152c25d4ade110d436b0b09e26d88d8b669506062d6f2ed9c6afe  yum-3.2.29-75.el6.centos.noarch.rpm
a6599ce85c7e40f43b57521d2bf6b5bd95e7b5ffba389852033e5272311808ef  yum-cron-3.2.29-75.el6.centos.noarch.rpm

Source:
9e8819f2ccb9799ebca816b69b2d67f777b125ca3643081cd1ce5d516fdb8800  yum-3.2.29-75.el6.centos.src.rpm