Please push corosync version 2.3.0. We currently have version 2.2.0 in cauldron : - this new version fix a possible Dos vulnerability - version 2.2.0 is now unsupported upstream - changelog from 2.2.0 to 2.3.0 is small http://lists.corosync.org/pipermail/discuss/2013-January/002350.html