CentOS Errata and Enhancement Advisory 2014:1718 

Upstream details at : https://rhn.redhat.com/errata/RHEA-2014-1718.html

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

i386:
dd81778f402fa471779b4092b77a29289960aa9ca78f8ba1d818dd3b656eee6b  qemu-guest-agent-0.12.1.2-2.448.el6_6.i686.rpm

x86_64:
0fb5fd7142a62577b1cde2de70d3152e25430e8e285a35437b3cbc9fec919553  qemu-guest-agent-0.12.1.2-2.448.el6_6.x86_64.rpm
d3c483390aad79f8f991c47f6225d9689fc2d56b2a3cdc9cb8211e59a5563f05  qemu-img-0.12.1.2-2.448.el6_6.x86_64.rpm
0a0cf7f854fdba42c0002ae76d2b24507ba1e180e6c9bca08ece5e5b143b9f4b  qemu-kvm-0.12.1.2-2.448.el6_6.x86_64.rpm
82dfa4774177c57df17eb100c4a2ca534146d4d0f3e5428fbbc88d41e8da8e9b  qemu-kvm-tools-0.12.1.2-2.448.el6_6.x86_64.rpm

Source:
ffdf05d4c7a24e37e3447b1acd0430676f31ab8685e950c1544985b240fae4b3  qemu-kvm-0.12.1.2-2.448.el6_6.src.rpm