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/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/authorized_keys/authorized_keys.cc
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/cache_refresh/cache_refresh.cc
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/include/compat.h
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/include/nss_cache_oslogin.h
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/include/oslogin_utils.h
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/nss/compat/getpwent_r.c
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/nss/nss_cache_oslogin.c
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/nss/nss_oslogin.cc
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/pam/pam_oslogin_admin.cc
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/pam/pam_oslogin_login.cc
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/utils.cc
Examining data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/test/oslogin_utils_test.cc

FINAL RESULTS:

data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/cache_refresh/cache_refresh.cc:81:3:  [5] (race) chown:
  This accepts filename arguments; if an attacker can move those files, a
  race condition results. (CWE-362). Use fchown( ) instead.
  chown(kDefaultFilePath, 0, 0);
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/cache_refresh/cache_refresh.cc:82:3:  [5] (race) chmod:
  This accepts filename arguments; if an attacker can move those files, a
  race condition results. (CWE-362). Use fchmod( ) instead.
  chmod(kDefaultFilePath, S_IRUSR | S_IWUSR | S_IROTH);
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/pam/pam_oslogin_admin.cc:92:7:  [5] (race) chown:
  This accepts filename arguments; if an attacker can move those files, a
  race condition results. (CWE-362). Use fchown( ) instead.
      chown(filename.c_str(), 0, 0);
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/pam/pam_oslogin_admin.cc:93:7:  [5] (race) chmod:
  This accepts filename arguments; if an attacker can move those files, a
  race condition results. (CWE-362). Use fchmod( ) instead.
      chmod(filename.c_str(), S_IRUSR | S_IRGRP);
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/pam/pam_oslogin_login.cc:100:7:  [5] (race) chown:
  This accepts filename arguments; if an attacker can move those files, a
  race condition results. (CWE-362). Use fchown( ) instead.
      chown(users_filename.c_str(), 0, 0);
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/pam/pam_oslogin_login.cc:101:7:  [5] (race) chmod:
  This accepts filename arguments; if an attacker can move those files, a
  race condition results. (CWE-362). Use fchmod( ) instead.
      chmod(users_filename.c_str(), S_IRUSR | S_IWUSR | S_IRGRP);
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/include/compat.h:44:31:  [4] (format) syslog:
  If syslog's format strings can be influenced by an attacker, they can be
  exploited (CWE-134). Use a constant format string for syslog.
#define PAM_SYSLOG(pamh, ...) syslog(__VA_ARGS__)
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/include/nss_cache_oslogin.h:35:5:  [4] (format) fprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
    fprintf(stderr, fmt, ##args);                                              \
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/cache_refresh/cache_refresh.cc:53:3:  [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 buffer[kPasswdBufferSize];
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/nss/nss_cache_oslogin.c:35:8:  [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 p_filename[NSS_CACHE_OSLOGIN_PATH_LENGTH] = NSS_CACHE_OSLOGIN_PATH;
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/nss/nss_cache_oslogin.c:122:12:  [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).
  p_file = fopen(p_filename, "r");
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/pam/pam_oslogin_admin.cc:88:20:  [2] (misc) open:
  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).
      sudoers_file.open(filename.c_str());
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/utils.cc:61:3:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
  strncpy(*buffer, value.c_str(), bytes_to_write);
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/utils.cc:280:7:  [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 (strlen(result->pw_name) == 0) {
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/utils.cc:284:7:  [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 (strlen(result->pw_dir) == 0) {
data/google-compute-image-packages-20190916/packages/google-compute-engine-oslogin/src/utils.cc:291:7:  [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 (strlen(result->pw_shell) == 0) {

ANALYSIS SUMMARY:

Hits = 16
Lines analyzed = 2996 in approximately 0.22 seconds (13545 lines/second)
Physical Source Lines of Code (SLOC) = 2219
Hits@level = [0]   9 [1]   4 [2]   4 [3]   0 [4]   2 [5]   6
Hits@level+ = [0+]  25 [1+]  16 [2+]  12 [3+]   8 [4+]   8 [5+]   6
Hits/KSLOC@level+ = [0+] 11.2663 [1+] 7.21046 [2+] 5.40784 [3+] 3.60523 [4+] 3.60523 [5+] 2.70392
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.