Stack-based buffer overflow in socat 1.3.0.0 through 1.7.2.2 and 2.0.0-b1 through 2.0.0-b6 allows local users to cause a denial of service (segmentation fault) via a long server name in the PROXY-CONNECT address in the command line.
http://www.securityfocus.com/bid/65201
http://www.dest-unreach.org/socat/contrib/socat-secadv5.txt
http://www.dest-unreach.org/socat
http://seclists.org/oss-sec/2014/q1/159
http://lists.opensuse.org/opensuse-updates/2015-04/msg00043.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128229.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128190.html