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/r-bioc-dropletutils-1.10.1+ds/src/RcppExports.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/downsample_run.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/encode_sequences.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/find_chimeric.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/find_swapped.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/get_cell_barcodes.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/group_cells.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/hashed_deltas.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/montecarlo_pval.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/rand_custom.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/rand_custom.h
Examining data/r-bioc-dropletutils-1.10.1+ds/src/utils.cpp
Examining data/r-bioc-dropletutils-1.10.1+ds/src/utils.h

FINAL RESULTS:

data/r-bioc-dropletutils-1.10.1+ds/src/montecarlo_pval.cpp:59:28:  [3] (random) random:
  This function is not sufficiently random for security-related functions
  such as key and nonce creation (CWE-327). Use a more secure technique for
  acquiring random values.
            typedef boost::random::gamma_distribution<double> distr_t;
data/r-bioc-dropletutils-1.10.1+ds/src/montecarlo_pval.cpp:68:16:  [3] (random) random:
  This function is not sufficiently random for security-related functions
  such as key and nonce creation (CWE-327). Use a more secure technique for
  acquiring random values.
        boost::random::discrete_distribution<> sampler(probs.begin(), probs.end());
data/r-bioc-dropletutils-1.10.1+ds/src/get_cell_barcodes.cpp:36:12:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
    h5data.read(encoded.data(), H5::PredType::NATIVE_UINT64, memspace, dataspace);

ANALYSIS SUMMARY:

Hits = 3
Lines analyzed = 969 in approximately 0.05 seconds (20569 lines/second)
Physical Source Lines of Code (SLOC) = 738
Hits@level = [0]   0 [1]   1 [2]   0 [3]   2 [4]   0 [5]   0
Hits@level+ = [0+]   3 [1+]   3 [2+]   2 [3+]   2 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 4.06504 [1+] 4.06504 [2+] 2.71003 [3+] 2.71003 [4+]   0 [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.