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/python-bcrypt-3.1.7/src/_csrc/bcrypt.c
Examining data/python-bcrypt-3.1.7/src/_csrc/bcrypt_pbkdf.c
Examining data/python-bcrypt-3.1.7/src/_csrc/blf.c
Examining data/python-bcrypt-3.1.7/src/_csrc/blf.h
Examining data/python-bcrypt-3.1.7/src/_csrc/pycabcrypt.h
Examining data/python-bcrypt-3.1.7/src/_csrc/sha2.c
Examining data/python-bcrypt-3.1.7/src/_csrc/sha2.h
Examining data/python-bcrypt-3.1.7/src/_csrc/timingsafe_bcmp.c
Examining data/python-bcrypt-3.1.7/src/_csrc/portable_endian.h

FINAL RESULTS:

data/python-bcrypt-3.1.7/src/_csrc/pycabcrypt.h:18:9:  [4] (format) snprintf:
  If format strings can be influenced by an attacker, they can be exploited,
  and note that sprintf variations do not always \0-terminate (CWE-134). Use
  a constant for the format specification.
#define snprintf _snprintf
data/python-bcrypt-3.1.7/src/_csrc/pycabcrypt.h:18:18:  [4] (format) _snprintf:
  If format strings can be influenced by an attacker, they can be exploited,
  and note that sprintf variations do not always \0-terminate (CWE-134). Use
  a constant for the format specification.
#define snprintf _snprintf
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:226:2:  [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(context->state.st32, sha256_initial_hash_value,
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:409:4:  [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(&context->buffer[usedspace], data, freespace);
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:416:4:  [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(&context->buffer[usedspace], data, len);
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:432:3:  [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(context->buffer, data, len);
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:487:2:  [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(digest, context->state.st32, SHA256_DIGEST_LENGTH);
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:498:2:  [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(context->state.st64, sha512_initial_hash_value,
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:685:4:  [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(&context->buffer[usedspace], data, freespace);
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:692:4:  [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(&context->buffer[usedspace], data, len);
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:708:3:  [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(context->buffer, data, len);
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:772:2:  [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(digest, context->state.st64, SHA512_DIGEST_LENGTH);
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:783:2:  [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(context->state.st64, sha384_initial_hash_value,
data/python-bcrypt-3.1.7/src/_csrc/sha2.c:809:2:  [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(digest, context->state.st64, SHA384_DIGEST_LENGTH);
data/python-bcrypt-3.1.7/src/_csrc/bcrypt.c:91:24:  [1] (buffer) strlen:
  Does not handle strings that are not \0-terminated; if given one it may
  perform an over-read (it could cause a crash if unprotected) (CWE-126).
		key_len = (u_int8_t)(strlen(key) + 1);
data/python-bcrypt-3.1.7/src/_csrc/bcrypt.c:98:13:  [1] (buffer) strlen:
  Does not handle strings that are not \0-terminated; if given one it may
  perform an over-read (it could cause a crash if unprotected) (CWE-126).
		key_len = strlen(key);
data/python-bcrypt-3.1.7/src/_csrc/bcrypt.c:124:6:  [1] (buffer) strlen:
  Does not handle strings that are not \0-terminated; if given one it may
  perform an over-read (it could cause a crash if unprotected) (CWE-126).
	if (strlen(salt) * 3 / 4 < BCRYPT_MAXSALT)

ANALYSIS SUMMARY:

Hits = 17
Lines analyzed = 2365 in approximately 0.10 seconds (22917 lines/second)
Physical Source Lines of Code (SLOC) = 1674
Hits@level = [0]   1 [1]   3 [2]  12 [3]   0 [4]   2 [5]   0
Hits@level+ = [0+]  18 [1+]  17 [2+]  14 [3+]   2 [4+]   2 [5+]   0
Hits/KSLOC@level+ = [0+] 10.7527 [1+] 10.1553 [2+] 8.3632 [3+] 1.19474 [4+] 1.19474 [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.