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/haskell-cryptohash-md5-0.11.100.1/cbits/md5.c
Examining data/haskell-cryptohash-md5-0.11.100.1/cbits/md5.h

FINAL RESULTS:

data/haskell-cryptohash-md5-0.11.100.1/cbits/md5.c:36:9:  [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.
typedef char static_assertion__unexpected_md5_ctx_size[(sizeof(struct md5_ctx) == MD5_CTX_SIZE)?1:-1];
data/haskell-cryptohash-md5-0.11.100.1/cbits/md5.c:194:21:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    uint32_t w[16]; memcpy(w, buf, 64);
data/haskell-cryptohash-md5-0.11.100.1/cbits/md5.c:212:5:  [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(ctx->buf + index, data, to_fill);
data/haskell-cryptohash-md5-0.11.100.1/cbits/md5.c:229:5:  [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(ctx->buf + index, data, len);

ANALYSIS SUMMARY:

Hits = 4
Lines analyzed = 296 in approximately 0.02 seconds (14000 lines/second)
Physical Source Lines of Code (SLOC) = 202
Hits@level = [0]   0 [1]   0 [2]   4 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   4 [1+]   4 [2+]   4 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 19.802 [1+] 19.802 [2+] 19.802 [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.