libzmq (aka) ZeroMQ is vulnerable to replay attacks. It is due to a flaw in the creation and validation of nonces, failing to detect nonces and disconnect malicious peers.
lists.opensuse.org/opensuse-updates/2014-11/msg00027.html
lists.opensuse.org/opensuse-updates/2014-11/msg00101.html
seclists.org/oss-sec/2014/q3/754
seclists.org/oss-sec/2014/q3/776
secunia.com/advisories/62262
www.securityfocus.com/bid/70157
bugzilla.redhat.com/show_bug.cgi?id=1147315
exchange.xforce.ibmcloud.com/vulnerabilities/96242
github.com/zeromq/libzmq/issues/1191
github.com/zeromq/libzmq/pull/1189