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/multiboot-0.6.96+20101113/doc/kernel.c
Examining data/multiboot-0.6.96+20101113/doc/multiboot.h
Examining data/multiboot-0.6.96+20101113/util/mbchk.c

FINAL RESULTS:

data/multiboot-0.6.96+20101113/doc/kernel.c:48:6:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
void printf (const char *format, ...);
data/multiboot-0.6.96+20101113/doc/kernel.c:326:1:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
printf (const char *format, ...)
data/multiboot-0.6.96+20101113/util/mbchk.c:176:11:  [3] (buffer) getopt_long:
  Some older implementations do not protect against internal buffer overflows
  (CWE-120, CWE-20). Check implementation on installation, or limit the size
  of all string inputs.
      c = getopt_long (argc, argv, optstring, longopts, 0);
data/multiboot-0.6.96+20101113/doc/kernel.c:330:3:  [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.
  char buf[20];
data/multiboot-0.6.96+20101113/util/mbchk.c:59:3:  [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.
  char buf[8192];
data/multiboot-0.6.96+20101113/util/mbchk.c:208:9:  [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).
	  fp = fopen (argv[optind], "r");

ANALYSIS SUMMARY:

Hits = 6
Lines analyzed = 889 in approximately 0.05 seconds (19128 lines/second)
Physical Source Lines of Code (SLOC) = 609
Hits@level = [0]  31 [1]   0 [2]   3 [3]   1 [4]   2 [5]   0
Hits@level+ = [0+]  37 [1+]   6 [2+]   6 [3+]   3 [4+]   2 [5+]   0
Hits/KSLOC@level+ = [0+] 60.7553 [1+] 9.85222 [2+] 9.85222 [3+] 4.92611 [4+] 3.28407 [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.