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/iucode-tool-2.3.1/intel_microcode.h
Examining data/iucode-tool-2.3.1/intel_microcode.c
Examining data/iucode-tool-2.3.1/iucode_tool.c

FINAL RESULTS:

data/iucode-tool-2.3.1/iucode_tool.c:2802:3:  [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.
		snprintf(cpuid_device, sizeof(cpuid_device),
data/iucode-tool-2.3.1/iucode_tool.c:190:14:  [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.
static const char * const iuc_rev_match_mode_s[IUCODE_REVFLT_SIZE] = {
data/iucode-tool-2.3.1/iucode_tool.c:319:8:  [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).
	nfd = open("/dev/null", fl);
data/iucode-tool-2.3.1/iucode_tool.c:1268:2:  [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 fnbuf[PATH_MAX];
data/iucode-tool-2.3.1/iucode_tool.c:1342:9:  [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(fn, O_RDONLY);
data/iucode-tool-2.3.1/iucode_tool.c:1487:7:  [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(devname, O_WRONLY);
data/iucode-tool-2.3.1/iucode_tool.c:1580:2:  [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[CPIO_MAX_HDRSIZE + 16]; /* worst case padding */
data/iucode-tool-2.3.1/iucode_tool.c:2542:2:  [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 fn[35]; /* "s%08X_m%08X_r%08X.fw" */
data/iucode-tool-2.3.1/iucode_tool.c:2554:10:  [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).
	dirfd = open(dirname, O_RDONLY);
data/iucode-tool-2.3.1/iucode_tool.c:2616:2:  [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 fn[35]; /* "%02x-%02x-%02x" */
data/iucode-tool-2.3.1/iucode_tool.c:2627:10:  [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).
	dirfd = open(dirname, O_RDONLY);
data/iucode-tool-2.3.1/iucode_tool.c:2767:2:  [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 cpuid_device[PATH_MAX];
data/iucode-tool-2.3.1/iucode_tool.c:3257:2:  [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(n->path, fn, l);
data/iucode-tool-2.3.1/iucode_tool.c:1087:8:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
		rc = read(fd, mcb_buffer + pos,
data/iucode-tool-2.3.1/iucode_tool.c:1584:10:  [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).
	nsize = strlen(name) + 1;
data/iucode-tool-2.3.1/iucode_tool.c:1654:29:  [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).
	s += CPIO_STATIC_HDRSIZE + strlen(LINUX_CPIO_UCODE_PADNAME) + 1;
data/iucode-tool-2.3.1/iucode_tool.c:1655:9:  [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).
	pad_fn[strlen(LINUX_CPIO_UCODE_PADNAME) - s % 16] = 0;
data/iucode-tool-2.3.1/iucode_tool.c:1723:11:  [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).
					     strlen(LINUX_CPIO_UCODE_NAME),
data/iucode-tool-2.3.1/iucode_tool.c:1781:26:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
	int rc = write_data(fd, strncpy(buf, cpio_trailer, s), s);
data/iucode-tool-2.3.1/iucode_tool.c:2833:7:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
		if (read(cpuid_fd, &cpuid_buf, sizeof(cpuid_buf)) == -1) {
data/iucode-tool-2.3.1/iucode_tool.c:3244:6:  [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).
	l = strlen(fn);
data/iucode-tool-2.3.1/iucode_tool.c:3348:16:  [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).
			            strlen(iuc_rev_match_mode_s[i]))))
data/iucode-tool-2.3.1/iucode_tool.c:3352:9:  [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).
			p += strlen(iuc_rev_match_mode_s[i]);
data/iucode-tool-2.3.1/iucode_tool.c:3490:7:  [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(arg) > 1)

ANALYSIS SUMMARY:

Hits = 24
Lines analyzed = 4710 in approximately 0.13 seconds (36675 lines/second)
Physical Source Lines of Code (SLOC) = 3155
Hits@level = [0]  13 [1]  11 [2]  12 [3]   0 [4]   1 [5]   0
Hits@level+ = [0+]  37 [1+]  24 [2+]  13 [3+]   1 [4+]   1 [5+]   0
Hits/KSLOC@level+ = [0+] 11.7274 [1+] 7.60697 [2+] 4.12044 [3+] 0.316957 [4+] 0.316957 [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.