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/node-websocket-1.0.31/src/bufferutil.cc
Examining data/node-websocket-1.0.31/src/validation.cc

FINAL RESULTS:

data/node-websocket-1.0.31/src/bufferutil.cc:59:7:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
      memcpy(buffer + offset, Buffer::Data(src), length);

ANALYSIS SUMMARY:

Hits = 1
Lines analyzed = 269 in approximately 0.05 seconds (5429 lines/second)
Physical Source Lines of Code (SLOC) = 220
Hits@level = [0]   0 [1]   0 [2]   1 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   1 [1+]   1 [2+]   1 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 4.54545 [1+] 4.54545 [2+] 4.54545 [3+]   0 [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.