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/pyzmq-20.0.0/buildutils/check_sys_un.c
Examining data/pyzmq-20.0.0/buildutils/dummy.c
Examining data/pyzmq-20.0.0/buildutils/include_darwin/platform.hpp
Examining data/pyzmq-20.0.0/buildutils/include_freebsd/platform.hpp
Examining data/pyzmq-20.0.0/buildutils/include_linux-armv/platform.hpp
Examining data/pyzmq-20.0.0/buildutils/include_linux/platform.hpp
Examining data/pyzmq-20.0.0/buildutils/include_win32/platform.hpp
Examining data/pyzmq-20.0.0/buildutils/include_win32/stdint.h
Examining data/pyzmq-20.0.0/buildutils/initlibzmq.cpp
Examining data/pyzmq-20.0.0/buildutils/templates/zmq_constants.h
Examining data/pyzmq-20.0.0/buildutils/vers.c
Examining data/pyzmq-20.0.0/zmq/backend/cffi/_cdefs.h
Examining data/pyzmq-20.0.0/zmq/backend/cffi/_verify.c
Examining data/pyzmq-20.0.0/zmq/utils/getpid_compat.h
Examining data/pyzmq-20.0.0/zmq/utils/ipcmaxlen.h
Examining data/pyzmq-20.0.0/zmq/utils/mutex.h
Examining data/pyzmq-20.0.0/zmq/utils/pyversion_compat.h
Examining data/pyzmq-20.0.0/zmq/utils/zmq_compat.h
Examining data/pyzmq-20.0.0/zmq/utils/zmq_constants.h

FINAL RESULTS:

data/pyzmq-20.0.0/zmq/utils/mutex.h:67:5:  [3] (misc) EnterCriticalSection:
  On some versions of Windows, exceptions can be thrown in low-memory
  situations. Use InitializeCriticalSectionAndSpinCount instead.
    EnterCriticalSection(&mutex->csection);
data/pyzmq-20.0.0/zmq/backend/cffi/_cdefs.h:69:8:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
void * memcpy(void *restrict s1, const void *restrict s2, size_t n);

ANALYSIS SUMMARY:

Hits = 2
Lines analyzed = 3101 in approximately 0.12 seconds (24842 lines/second)
Physical Source Lines of Code (SLOC) = 1260
Hits@level = [0]   2 [1]   0 [2]   1 [3]   1 [4]   0 [5]   0
Hits@level+ = [0+]   4 [1+]   2 [2+]   2 [3+]   1 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 3.1746 [1+] 1.5873 [2+] 1.5873 [3+] 0.793651 [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.