In Wireshark 2.4.0 and 2.2.0 to 2.2.8, the Profinet I/O dissector could crash with an out-of-bounds write. This was addressed in plugins/profinet/packet-dcerpc-pn-io.c by adding string validation.
www.securityfocus.com/bid/100542
www.securitytracker.com/id/1039254
bugs.wireshark.org/bugzilla/show_bug.cgi?id=13847
code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=2096bc1e5078732543e0a3ee115a2ce520a72bbc
code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=af7b093ca528516c14247acb545046199d30843e
www.debian.org/security/2017/dsa-4060
www.wireshark.org/security/wnpa-sec-2017-39.html