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-cbor-1.0.0/c/cbor.h
Examining data/python-cbor-1.0.0/c/cbormodule.c

FINAL RESULTS:

data/python-cbor-1.0.0/c/cbormodule.c:79:11:  [4] (format) vfprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
    ret = vfprintf(stderr, fmt, ap);
data/python-cbor-1.0.0/c/cbormodule.c:287:17:  [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(parts_tail->start, blob, saux);
data/python-cbor-1.0.0/c/cbormodule.c:300:7:  [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(allbytes + op, parts->start, parts->len);
data/python-cbor-1.0.0/c/cbormodule.c:764:2:  [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((void*)opos, PyBytes_AsString(retval), rlen);
data/python-cbor-1.0.0/c/cbormodule.c:1239:6:  [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(out + pos, PyBytes_AsString(ob), len);
data/python-cbor-1.0.0/c/cbormodule.c:1247:6:  [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(out + pos, PyBytes_AsString(utf8), len);
data/python-cbor-1.0.0/c/cbormodule.c:43:13:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
    void* (*read)(void* self, Py_ssize_t len); \
data/python-cbor-1.0.0/c/cbormodule.c:127:25:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
    uint8_t* raw = rin->read(rin, 4);
data/python-cbor-1.0.0/c/cbormodule.c:145:25:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
    uint8_t* raw = rin->read(rin, 8);
data/python-cbor-1.0.0/c/cbormodule.c:173:32:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
	uint8_t* raw = (uint8_t*)rin->read(rin, 4);
data/python-cbor-1.0.0/c/cbormodule.c:183:32:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
	uint8_t* raw = (uint8_t*)rin->read(rin, 8);
data/python-cbor-1.0.0/c/cbormodule.c:278:15:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
		blob = rin->read(rin, saux);
data/python-cbor-1.0.0/c/cbormodule.c:318:14:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
		raw = rin->read(rin, aux);
data/python-cbor-1.0.0/c/cbormodule.c:356:28:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
                raw = rin->read(rin, aux);

ANALYSIS SUMMARY:

Hits = 14
Lines analyzed = 1567 in approximately 0.04 seconds (35807 lines/second)
Physical Source Lines of Code (SLOC) = 1347
Hits@level = [0]   2 [1]   8 [2]   5 [3]   0 [4]   1 [5]   0
Hits@level+ = [0+]  16 [1+]  14 [2+]   6 [3+]   1 [4+]   1 [5+]   0
Hits/KSLOC@level+ = [0+] 11.8782 [1+] 10.3935 [2+] 4.45434 [3+] 0.74239 [4+] 0.74239 [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.