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/r-cran-tiff-0.1-5/src/common.h
Examining data/r-cran-tiff-0.1-5/src/common.c
Examining data/r-cran-tiff-0.1-5/src/read.c
Examining data/r-cran-tiff-0.1-5/src/write.c

FINAL RESULTS:

data/r-cran-tiff-0.1-5/src/common.c:15:5:  [4] (format) vsnprintf:
  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.
    vsnprintf(txtbuf, sizeof(txtbuf), fmt, ap);
data/r-cran-tiff-0.1-5/src/common.c:26:5:  [4] (format) vsnprintf:
  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.
    vsnprintf(txtbuf, sizeof(txtbuf), fmt, ap);
data/r-cran-tiff-0.1-5/src/common.c:9:8:  [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 char txtbuf[2048];
data/r-cran-tiff-0.1-5/src/common.c:55:2:  [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(buf, rj->data + rj->ptr, to_read);
data/r-cran-tiff-0.1-5/src/common.c:85:5:  [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(rj->data + rj->ptr, buf, length);
data/r-cran-tiff-0.1-5/src/read.c:31:2:  [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 uv[24];
data/r-cran-tiff-0.1-5/src/read.c:53:6:  [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 uv[24];
data/r-cran-tiff-0.1-5/src/read.c:59:2:  [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 uv[24];
data/r-cran-tiff-0.1-5/src/read.c:125:2:  [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 uv[24];
data/r-cran-tiff-0.1-5/src/read.c:167:6:  [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).
	f = fopen(fn, "rb");
data/r-cran-tiff-0.1-5/src/read.c:224:7:  [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(line, src, ls);
data/r-cran-tiff-0.1-5/src/read.c:225:7:  [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(src, dst,  ls);
data/r-cran-tiff-0.1-5/src/read.c:226:7:  [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(dst, line, ls);
data/r-cran-tiff-0.1-5/src/write.c:60:6:  [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).
	f = fopen(fn, "w+b");
data/r-cran-tiff-0.1-5/src/write.c:233:2:  [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(RAW(res), rj.data, rj.len);

ANALYSIS SUMMARY:

Hits = 15
Lines analyzed = 935 in approximately 0.05 seconds (17072 lines/second)
Physical Source Lines of Code (SLOC) = 853
Hits@level = [0]   5 [1]   0 [2]  13 [3]   0 [4]   2 [5]   0
Hits@level+ = [0+]  20 [1+]  15 [2+]  15 [3+]   2 [4+]   2 [5+]   0
Hits/KSLOC@level+ = [0+] 23.4467 [1+] 17.585 [2+] 17.585 [3+] 2.34467 [4+] 2.34467 [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.