CentOS Errata and Bugfix Advisory 2015:1212 

Upstream details at : https://rhn.redhat.com/errata/RHBA-2015-1212.html

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

i386:
59346288516ea2b78d52e60a4c6f57efaf5fd52e2439b31c9d1d72007479ed93  dhcpv6-1.0.10-22.el5_11.i386.rpm
a45f38d962896c9caf159a6031457795937eeab0b1ea81efb48b880a3e484dad  dhcpv6-client-1.0.10-22.el5_11.i386.rpm
1cc7830722ec93f2f4781044dc24fe3ba4b5001f1de1219d58017073cc1af327  libdhcp6client-1.0.10-22.el5_11.i386.rpm
76c5877358fe5c298d351dc710f7b5e2d31cfe8a2ca2bbc5fca75bb6d252acb4  libdhcp6client-devel-1.0.10-22.el5_11.i386.rpm

x86_64:
992236c4c294ca5e3fbb3883f0f0af5f1779eaad470f8736fcca02c7f4172f1a  dhcpv6-1.0.10-22.el5_11.x86_64.rpm
867c0a09c213e28ce32203aa2db7a92c7f49daeaa412a400285e9576c5361bd2  dhcpv6-client-1.0.10-22.el5_11.x86_64.rpm
1cc7830722ec93f2f4781044dc24fe3ba4b5001f1de1219d58017073cc1af327  libdhcp6client-1.0.10-22.el5_11.i386.rpm
0a0da012999941c3cfcc93eb3781279882145f6ceb7507de6d95133607f91b09  libdhcp6client-1.0.10-22.el5_11.x86_64.rpm
76c5877358fe5c298d351dc710f7b5e2d31cfe8a2ca2bbc5fca75bb6d252acb4  libdhcp6client-devel-1.0.10-22.el5_11.i386.rpm
d702b9e1a65d997ed463adda32c8b12c4d8e7be88d291d4d052520da75047ab0  libdhcp6client-devel-1.0.10-22.el5_11.x86_64.rpm

Source:
785a27201af8b94e4f03d8cc0f08d6bf39b4730402e6290ee0e7614c80dde2e3  dhcpv6-1.0.10-22.el5_11.src.rpm