CentOS Errata and Bugfix Advisory 2015:1789 

Upstream details at : https://rhn.redhat.com/errata/RHBA-2015-1789.html

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

x86_64:
bfc940a01ef2b7de2b3d9e698c90aa7e2d1bef3fa0fc4a6ec0b1e6ffe6d70a50  corosync-2.3.4-4.el7_1.3.x86_64.rpm
cf0a51b020f0a757733499bffc8c39061cc622dbbc8259be7728e4177f13787f  corosynclib-2.3.4-4.el7_1.3.i686.rpm
31d09a8cdda23e737fae53dc3d287181b7c2b48343e31352b584f289efc4eadd  corosynclib-2.3.4-4.el7_1.3.x86_64.rpm
2ed5d72ae45c6c969e9affff418755cf3741bb0ca6f7588ada6aad4fe9569a7b  corosynclib-devel-2.3.4-4.el7_1.3.i686.rpm
87ecd97597fbfe2a2c6e5282cd8eda0f39fed9b43569c98db371770a4506057f  corosynclib-devel-2.3.4-4.el7_1.3.x86_64.rpm

Source:
85db957440bfe84d84e8f9c3978245863c12bbd2cf0aa28920d02b9ad1401182  corosync-2.3.4-4.el7_1.3.src.rpm