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/pykerberos-1.1.14/src/base64.c
Examining data/pykerberos-1.1.14/src/base64.h
Examining data/pykerberos-1.1.14/src/kerberos.c
Examining data/pykerberos-1.1.14/src/kerberosbasic.c
Examining data/pykerberos-1.1.14/src/kerberosbasic.h
Examining data/pykerberos-1.1.14/src/kerberosgss.c
Examining data/pykerberos-1.1.14/src/kerberosgss.h
Examining data/pykerberos-1.1.14/src/kerberospw.c
Examining data/pykerberos-1.1.14/src/kerberospw.h

FINAL RESULTS:

data/pykerberos-1.1.14/src/kerberosgss.c:83:13:  [4] (buffer) strcpy:
  Does not check for buffer overflows when copying to destination [MS-banned]
  (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy
  easily misused).
            strcpy(result, pname);
data/pykerberos-1.1.14/src/base64.c:25:15:  [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 signed char index_64[128] =
data/pykerberos-1.1.14/src/kerberosgss.c:34:5:  [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 match[1024];
data/pykerberos-1.1.14/src/kerberosgss.c:400:9:  [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(&token_len, data, sizeof(unsigned int));
data/pykerberos-1.1.14/src/kerberosgss.c:434:61:  [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.
            state->response = base64_encode((const unsigned char *)iov[1].buffer.value, iov[1].buffer.length);
data/pykerberos-1.1.14/src/kerberosgss.c:507:9:  [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(response, &stoken_len, sizeof(unsigned int));
data/pykerberos-1.1.14/src/kerberosgss.c:509:9:  [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(response+index, iov[0].buffer.value, iov[0].buffer.length);
data/pykerberos-1.1.14/src/kerberosgss.c:512:9:  [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(response+index, iov[1].buffer.value, iov[1].buffer.length);
data/pykerberos-1.1.14/src/kerberosgss.c:518:13:  [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(response+index, iov[2].buffer.value, iov[2].buffer.length);
data/pykerberos-1.1.14/src/kerberosgss.c:539:2:  [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[4096];
data/pykerberos-1.1.14/src/kerberosgss.c:572:3:  [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, &buf_size, 4);
data/pykerberos-1.1.14/src/kerberosgss.c:812:5:  [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_maj[512];
data/pykerberos-1.1.14/src/kerberosgss.c:813:5:  [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_min[512];
data/pykerberos-1.1.14/src/base64.c:78:19:  [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).
    size_t vlen = strlen(value);
data/pykerberos-1.1.14/src/kerberosgss.c:47:17:  [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).
    match_len = strlen(match);
data/pykerberos-1.1.14/src/kerberosgss.c:82:29:  [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).
            result = malloc(strlen(pname) + 1);
data/pykerberos-1.1.14/src/kerberosgss.c:127:25:  [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).
    name_token.length = strlen(service);
data/pykerberos-1.1.14/src/kerberosgss.c:149:34:  [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).
        principal_token.length = strlen(principal);
data/pykerberos-1.1.14/src/kerberosgss.c:292:13:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
            strncpy(state->username, (char*) name_token.value, name_token.length);
data/pykerberos-1.1.14/src/kerberosgss.c:575:3:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
		strncpy(buf + 4, user, sizeof(buf) - 4);
data/pykerberos-1.1.14/src/kerberosgss.c:577:28:  [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).
		input_token.length = 4 + strlen(user);
data/pykerberos-1.1.14/src/kerberosgss.c:631:19:  [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).
    service_len = strlen(service);
data/pykerberos-1.1.14/src/kerberosgss.c:635:29:  [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).
        name_token.length = strlen(service);
data/pykerberos-1.1.14/src/kerberosgss.c:764:5:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
    strncpy(state->username, (char*) output_token.value, output_token.length);
data/pykerberos-1.1.14/src/kerberosgss.c:790:9:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
        strncpy(state->targetname, (char*) output_token.value, output_token.length);
data/pykerberos-1.1.14/src/kerberosgss.c:825:9:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
        strncpy(buf_maj, (char*) status_string.value, sizeof(buf_maj));
data/pykerberos-1.1.14/src/kerberosgss.c:836:13:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
            strncpy(buf_min, (char*) status_string.value, sizeof(buf_min));

ANALYSIS SUMMARY:

Hits = 27
Lines analyzed = 2036 in approximately 0.08 seconds (24832 lines/second)
Physical Source Lines of Code (SLOC) = 1536
Hits@level = [0]  12 [1]  14 [2]  12 [3]   0 [4]   1 [5]   0
Hits@level+ = [0+]  39 [1+]  27 [2+]  13 [3+]   1 [4+]   1 [5+]   0
Hits/KSLOC@level+ = [0+] 25.3906 [1+] 17.5781 [2+] 8.46354 [3+] 0.651042 [4+] 0.651042 [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.