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-tweetnacl-1.0.3+dfsg/test/c/cbox.c
Examining data/node-tweetnacl-1.0.3+dfsg/test/c/chash.c
Examining data/node-tweetnacl-1.0.3+dfsg/test/c/cscalarmult.c
Examining data/node-tweetnacl-1.0.3+dfsg/test/c/csecretbox.c
Examining data/node-tweetnacl-1.0.3+dfsg/test/c/csign-keypair.c
Examining data/node-tweetnacl-1.0.3+dfsg/test/c/csign.c
Examining data/node-tweetnacl-1.0.3+dfsg/test/c/tweetnacl.c
Examining data/node-tweetnacl-1.0.3+dfsg/test/c/tweetnacl.h

FINAL RESULTS:

data/node-tweetnacl-1.0.3+dfsg/test/c/cbox.c:15:11:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	unsigned char buf[4096];
data/node-tweetnacl-1.0.3+dfsg/test/c/cbox.c:27:3:  [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(&msg[have], buf, n);
data/node-tweetnacl-1.0.3+dfsg/test/c/chash.c:16:11:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	unsigned char buf[4096];
data/node-tweetnacl-1.0.3+dfsg/test/c/chash.c:25:3:  [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(&msg[have], buf, n);
data/node-tweetnacl-1.0.3+dfsg/test/c/chash.c:41:11:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	unsigned char *m, h[crypto_hash_BYTES];
data/node-tweetnacl-1.0.3+dfsg/test/c/cscalarmult.c:52:11:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	unsigned char *n, *p, q[crypto_scalarmult_BYTES];
data/node-tweetnacl-1.0.3+dfsg/test/c/csecretbox.c:15:11:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	unsigned char buf[4096];
data/node-tweetnacl-1.0.3+dfsg/test/c/csecretbox.c:27:3:  [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(&msg[have], buf, n);
data/node-tweetnacl-1.0.3+dfsg/test/c/csecretbox.c:93:12:  [2] (misc) fopen:
  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).
	FILE *f = fopen("csecretbox_debug.txt", "w");
data/node-tweetnacl-1.0.3+dfsg/test/c/csign-keypair.c:22:9:  [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).
			fd = open("/dev/urandom",O_RDONLY);
data/node-tweetnacl-1.0.3+dfsg/test/c/csign-keypair.c:45:11:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	unsigned char pk[crypto_sign_PUBLICKEYBYTES],
data/node-tweetnacl-1.0.3+dfsg/test/c/csign.c:16:11:  [2] (buffer) char:
  Statically-sized arrays can be improperly restricted, leading to potential
  overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use
  functions that limit length, or ensure that the size is larger than the
  maximum possible length.
	unsigned char buf[4096];
data/node-tweetnacl-1.0.3+dfsg/test/c/csign.c:25:3:  [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(&msg[have], buf, n);
data/node-tweetnacl-1.0.3+dfsg/test/c/cbox.c:54:8:  [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).
	len = strlen(h);
data/node-tweetnacl-1.0.3+dfsg/test/c/cbox.c:82:6:  [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(argv[1]) != crypto_box_SECRETKEYBYTES * 2)
data/node-tweetnacl-1.0.3+dfsg/test/c/cbox.c:86:6:  [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(argv[2]) != crypto_box_PUBLICKEYBYTES * 2)
data/node-tweetnacl-1.0.3+dfsg/test/c/cbox.c:90:6:  [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(argv[3]) != crypto_box_NONCEBYTES * 2)
data/node-tweetnacl-1.0.3+dfsg/test/c/cscalarmult.c:32:8:  [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).
	len = strlen(h);
data/node-tweetnacl-1.0.3+dfsg/test/c/cscalarmult.c:60:6:  [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(argv[1]) != crypto_scalarmult_SCALARBYTES * 2)
data/node-tweetnacl-1.0.3+dfsg/test/c/cscalarmult.c:64:6:  [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(argv[2]) != crypto_scalarmult_SCALARBYTES * 2)
data/node-tweetnacl-1.0.3+dfsg/test/c/csecretbox.c:54:8:  [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).
	len = strlen(h);
data/node-tweetnacl-1.0.3+dfsg/test/c/csecretbox.c:82:6:  [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(argv[1]) != crypto_secretbox_KEYBYTES * 2)
data/node-tweetnacl-1.0.3+dfsg/test/c/csecretbox.c:86:6:  [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(argv[2]) != crypto_secretbox_NONCEBYTES * 2)
data/node-tweetnacl-1.0.3+dfsg/test/c/csign-keypair.c:31:7:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
		i = read(fd,x,i);
data/node-tweetnacl-1.0.3+dfsg/test/c/csign.c:52:8:  [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).
	len = strlen(h);
data/node-tweetnacl-1.0.3+dfsg/test/c/csign.c:80:6:  [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(argv[1]) != crypto_sign_SECRETKEYBYTES * 2)

ANALYSIS SUMMARY:

Hits = 26
Lines analyzed = 1560 in approximately 0.08 seconds (18855 lines/second)
Physical Source Lines of Code (SLOC) = 1367
Hits@level = [0]   7 [1]  13 [2]  13 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]  33 [1+]  26 [2+]  13 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 24.1405 [1+] 19.0198 [2+] 9.50988 [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.