CentOS Errata and Bugfix Advisory 2014:1368 

Upstream details at : https://rhn.redhat.com/errata/RHBA-2014-1368.html

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

i386:
380ebf4be76ba9eded6f619366711e01537d705dacca24f7c5592a985bb8d6c2  at-3.1.8-84.el5_11.1.i386.rpm

x86_64:
ba03ad178a7e969747230ed905e4cdb79c4e67202ffbadc4a21fde7438747f98  at-3.1.8-84.el5_11.1.x86_64.rpm

Source:
fa016225f2927a0b81fe40dccc7511de0ad20b12f3a23a5a579f3da3d0c0101f  at-3.1.8-84.el5_11.1.src.rpm