Suricata

Which htp(libhtp) upstream version are you referring to?

https://launchpad.net/ubuntu/+source/htp/1.16-4 - see the "Newer version" link in the list of packages at ppa link in the report.

Suricata stable/current beta is supposed to be compiled with 0.5.15/16 -
http://suricata-ids.org/download/

We should find a better solution to handle that in the packaging itself. At the moment we only require that htp > than_a_version_number.
I have also updated the wiki page - https://redmine.openinfosecfoundation.org/projects/suricata/wiki/HTP_library_installation

Working on a possible fix in the packaging to handle this....

Are there plans to port suricata to latest htp library? This would naturally resolve this issue by relying on distribution to supply desired htp dependency instead of packaging old version alongside with suricata.