Flawfinder version 2.0.10, (C) 2001-2019 David A. Wheeler.
Number of rules (primarily dangerous function names) in C/C++ ruleset: 223
Examining data/librdf-ns-perl-20190227/share/prefix.cc

FINAL RESULTS:

data/librdf-ns-perl-20190227/share/prefix.cc:2038:1:  [4] (shell) system:
  This causes a new program to execute and is difficult to use safely
  (CWE-78). try using a library call that implements the same functionality
  if available.
system	http://www.univalle.edu.co/ontologies/System#	20170111
data/librdf-ns-perl-20190227/share/prefix.cc:827:1:  [2] (misc) open:
  Check when opening files - can an attacker redirect it (via symlinks),
  force the opening of special file type (e.g., device files), move things
  around to create a race condition, control its ancestors, or change its
  contents? (CWE-362).
open	http://open.vocab.org/terms/	20120827

ANALYSIS SUMMARY:

Hits = 2
Lines analyzed = 2341 in approximately 0.06 seconds (36085 lines/second)
Physical Source Lines of Code (SLOC) = 2341
Hits@level = [0]   0 [1]   0 [2]   1 [3]   0 [4]   1 [5]   0
Hits@level+ = [0+]   2 [1+]   2 [2+]   2 [3+]   1 [4+]   1 [5+]   0
Hits/KSLOC@level+ = [0+] 0.854336 [1+] 0.854336 [2+] 0.854336 [3+] 0.427168 [4+] 0.427168 [5+]   0
Dot directories skipped = 1 (--followdotdir overrides)
Minimum risk level = 1
Not every hit is necessarily a security vulnerability.
There may be other security vulnerabilities; review your code!
See 'Secure Programming HOWTO'
(https://dwheeler.com/secure-programs) for more information.