Pacemaker before 1.1.13 does not properly evaluate added nodes, which allows remote read-only users to gain privileges via an acl command.
https://security.gentoo.org/glsa/201710-08
https://github.com/ClusterLabs/pacemaker/commit/84ac07c
https://bugzilla.redhat.com/show_bug.cgi?id=1211370
http://www.securityfocus.com/bid/74231
http://rhn.redhat.com/errata/RHSA-2015-2383.html
http://rhn.redhat.com/errata/RHSA-2015-1424.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169995.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169671.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170610.html