libzmq (aka ZeroMQ/C++) 4.0.x before 4.0.5 does not ensure that nonces are unique, which allows man-in-the-middle attackers to conduct replay attacks via unspecified vectors.
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
exchange.xforce.ibmcloud.com/vulnerabilities/96242
github.com/zeromq/libzmq/issues/1191
github.com/zeromq/libzmq/pull/1189