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/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c
Examining data/libomemo-0.6.2+git20200527.e3b212/src/libomemo_crypto.c
Examining data/libomemo-0.6.2+git20200527.e3b212/src/libomemo_crypto.h
Examining data/libomemo-0.6.2+git20200527.e3b212/src/libomemo_storage.c
Examining data/libomemo-0.6.2+git20200527.e3b212/src/libomemo_storage.h
Examining data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.h
Examining data/libomemo-0.6.2+git20200527.e3b212/test/test_crypto.c
Examining data/libomemo-0.6.2+git20200527.e3b212/test/test_libomemo.c
Examining data/libomemo-0.6.2+git20200527.e3b212/test/test_storage.c

FINAL RESULTS:

data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:456:9:  [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.
  len = snprintf((void *) 0, 0, format, OMEMO_NS, OMEMO_NS_SEPARATOR, BUNDLE_PEP_NAME, OMEMO_NS_SEPARATOR_FINAL, bundle_p->device_id) + 1;
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:458:7:  [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.
  if (snprintf(node_value, len, format, OMEMO_NS, OMEMO_NS_SEPARATOR, BUNDLE_PEP_NAME, OMEMO_NS_SEPARATOR_FINAL, bundle_p->device_id) <= 0) {
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:615:16:  [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.
  size_t len = snprintf((void *) 0, 0, format, OMEMO_NS, OMEMO_NS_SEPARATOR, BUNDLE_PEP_NAME, OMEMO_NS_SEPARATOR_FINAL, device_id);
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:623:23:  [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.
  size_t actual_len = snprintf(node_name, buf_len, format, OMEMO_NS, OMEMO_NS_SEPARATOR, BUNDLE_PEP_NAME, OMEMO_NS_SEPARATOR_FINAL, device_id);
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:948:16:  [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.
  size_t len = snprintf((void *) 0, 0, format, OMEMO_NS, OMEMO_NS_SEPARATOR, DEVICELIST_PEP_NAME);
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:956:23:  [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.
  size_t actual_len = snprintf(node_name, buf_len, format, OMEMO_NS, OMEMO_NS_SEPARATOR, DEVICELIST_PEP_NAME);
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:399:12:  [3] (random) g_random_int_range:
  This function is not sufficiently random for security-related functions
  such as key and nonce creation (CWE-327). Use a more secure technique for
  acquiring random values.
  random = g_random_int_range(0, bundle_p->pre_keys_amount);
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:401:23:  [3] (random) random:
  This function is not sufficiently random for security-related functions
  such as key and nonce creation (CWE-327). Use a more secure technique for
  acquiring random values.
  for (int i = 0; i < random; i++) {
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:930:5:  [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(cpy_p, curr_p->data, (sizeof(uint32_t)));
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:1116:3:  [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(msg_p->key_p + msg_p->key_len, tag_p, msg_p->tag_len);
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:1483:3:  [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(pt_str, pt_p, pt_len);
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:158:59:  [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 (strncmp(mxmlGetElement(next_node_p), expected_name, strlen(expected_name))) {
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:518:68:  [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).
  ret_val = strncmp(mxmlGetElement(items_node_p), ITEMS_NODE_NAME, strlen(ITEMS_NODE_NAME));
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:661:30:  [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).
  from_dup = g_strndup(from, strlen(from));
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:703:68:  [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).
  ret_val = strncmp(mxmlGetElement(items_node_p), ITEMS_NODE_NAME, strlen(ITEMS_NODE_NAME));
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:715:66:  [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).
  ret_val = strncmp(mxmlGetElement(item_node_p), ITEM_NODE_NAME, strlen(ITEM_NODE_NAME));
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:1104:66:  [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).
  ret_val = crypto_p->aes_gcm_encrypt_func((uint8_t *) msg_text, strlen(msg_text),
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:1332:36:  [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).
  char * ret = g_strndup(split[0], strlen(split[0]));
data/libomemo-0.6.2+git20200527.e3b212/src/libomemo.c:1382:86:  [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 (!strncmp(rid_string, mxmlElementGetAttr(key_node_p, KEY_NODE_RID_ATTR_NAME), strlen(rid_string))) {
data/libomemo-0.6.2+git20200527.e3b212/test/test_crypto.c:38:26:  [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 plaintext_len = strlen(msg) + 1;

ANALYSIS SUMMARY:

Hits = 20
Lines analyzed = 4411 in approximately 0.16 seconds (28265 lines/second)
Physical Source Lines of Code (SLOC) = 3018
Hits@level = [0]   4 [1]   9 [2]   3 [3]   2 [4]   6 [5]   0
Hits@level+ = [0+]  24 [1+]  20 [2+]  11 [3+]   8 [4+]   6 [5+]   0
Hits/KSLOC@level+ = [0+] 7.95229 [1+] 6.62691 [2+] 3.6448 [3+] 2.65076 [4+] 1.98807 [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.