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/pyosmium-3.1.0/lib/base_handler.h
Examining data/pyosmium-3.1.0/lib/cast.h
Examining data/pyosmium-3.1.0/lib/geom.cc
Examining data/pyosmium-3.1.0/lib/index.cc
Examining data/pyosmium-3.1.0/lib/io.cc
Examining data/pyosmium-3.1.0/lib/merge_input_reader.cc
Examining data/pyosmium-3.1.0/lib/osm.cc
Examining data/pyosmium-3.1.0/lib/osmium.cc
Examining data/pyosmium-3.1.0/lib/osmium_module.h
Examining data/pyosmium-3.1.0/lib/replication.cc
Examining data/pyosmium-3.1.0/lib/simple_handler.h
Examining data/pyosmium-3.1.0/lib/simple_writer.cc
Examining data/pyosmium-3.1.0/lib/write_handler.cc

FINAL RESULTS:

data/pyosmium-3.1.0/lib/osm.cc:383:60:  [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).
        .def_property_readonly("open", &osmium::Changeset::open,
data/pyosmium-3.1.0/lib/merge_input_reader.cc:170:55:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
        while (osmium::memory::Buffer buffer = reader.read()) {

ANALYSIS SUMMARY:

Hits = 2
Lines analyzed = 1802 in approximately 0.10 seconds (17656 lines/second)
Physical Source Lines of Code (SLOC) = 1533
Hits@level = [0]   0 [1]   1 [2]   1 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   2 [1+]   2 [2+]   1 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 1.30463 [1+] 1.30463 [2+] 0.652316 [3+]   0 [4+]   0 [5+]   0
Dot directories skipped = 2 (--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.