The MITRE CVE dictionary describes this issue as:
The IsDFP_Frame function in plugins/profinet/packet-pn-rt.c in the PROFINET Real-Time dissector in Wireshark 1.10.x before 1.10.1 does not validate MAC addresses, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet.
Find out more about CVE-2013-4936 from the
MITRE CVE dictionary dictionary and
This issue does not affect the version of wireshark as shipped with Red Hat Enterprise Linux 5.