An infinite loop issue was discovered in Wireshark's HIP dissector. It may be possible to make Wireshark consume an excessive amount of CPU by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.
This is reported to affect version 1.12.0. This version is not shipped in Fedora or Red Hat Enterprise Linux.
I dont see any upstream bugzilla assigned to it , but here is the upstream fix
Created wireshark tracking bugs for this issue:
Affects: fedora-all [bug 1148277]
This issue has been addressed in the following products:
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Via RHSA-2014:1676 https://rhn.redhat.com/errata/RHSA-2014-1676.html