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/titantools-4.0.11+notdfsg1/runas-v1.c
Examining data/titantools-4.0.11+notdfsg1/runas-v2.c
Examining data/titantools-4.0.11+notdfsg1/runas.c
Examining data/titantools-4.0.11+notdfsg1/noshell.c
Examining data/titantools-4.0.11+notdfsg1/stubs.c

FINAL RESULTS:

data/titantools-4.0.11+notdfsg1/noshell.c:69:3:  [4] (misc) getlogin:
  It's often easy to fool getlogin. Sometimes it does not work at all,
  because some program messed up the utmp file. Often, it gives only the
  first 8 characters of the login name. The user currently logged in on the
  controlling tty of our program need not be the user who started it. Avoid
  getlogin() for security-related purposes (CWE-807). Use getpwuid(geteuid())
  and extract the desired information instead.
		getlogin()
data/titantools-4.0.11+notdfsg1/runas-v1.c:108:5:  [4] (shell) execvp:
  This causes a new program to execute and is difficult to use safely
  (CWE-78). try using a library call that implements the same functionality
  if available.
    execvp(argv[3], argv + 3);
data/titantools-4.0.11+notdfsg1/runas-v2.c:126:5:  [4] (shell) execvp:
  This causes a new program to execute and is difficult to use safely
  (CWE-78). try using a library call that implements the same functionality
  if available.
    execvp(argv[4], argv + 4);
data/titantools-4.0.11+notdfsg1/runas.c:171:5:  [4] (shell) execvp:
  This causes a new program to execute and is difficult to use safely
  (CWE-78). try using a library call that implements the same functionality
  if available.
    execvp(argv[4], argv + 4);
data/titantools-4.0.11+notdfsg1/runas.c:55:17:  [3] (buffer) getopt:
  Some older implementations do not protect against internal buffer overflows
  (CWE-120, CWE-20). Check implementation on installation, or limit the size
  of all string inputs.
    while ((c = getopt(argc, argv, "c:")) != EOF) {
data/titantools-4.0.11+notdfsg1/runas.c:133:6:  [3] (misc) chroot:
  chroot can be very helpful, but is hard to use correctly (CWE-250, CWE-22).
  Make sure the program immediately chdir("/"), closes file descriptors, and
  drops root privileges, and that all necessary files (and no more!) are in
  the new root.
	if (chroot(chrootDir) < 0) {
data/titantools-4.0.11+notdfsg1/runas-v1.c:65:11:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
	newGID = atoi(argv[2]);
data/titantools-4.0.11+notdfsg1/runas-v1.c:83:11:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
	newUID = atoi(argv[1]);
data/titantools-4.0.11+notdfsg1/runas-v2.c:62:11:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
	newGID = atoi(argv[2]);
data/titantools-4.0.11+notdfsg1/runas-v2.c:80:11:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
	newUID = atoi(argv[1]);
data/titantools-4.0.11+notdfsg1/runas.c:98:11:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
	newGID = atoi(argv[2]);
data/titantools-4.0.11+notdfsg1/runas.c:116:11:  [2] (integer) atoi:
  Unless checked, the resulting number can exceed the expected range
  (CWE-190). If source untrusted, check both minimum and maximum, even if the
  input had no minus sign (large numbers can roll over into negative number;
  consider saving to an unsigned value if that is intended).
	newUID = atoi(argv[1]);
data/titantools-4.0.11+notdfsg1/runas-v2.c:123:12:  [1] (access) umask:
  Ensure that umask is given most restrictive possible setting (e.g., 066 or
  077) (CWE-732).
    (void) umask(uMask);
data/titantools-4.0.11+notdfsg1/runas.c:168:12:  [1] (access) umask:
  Ensure that umask is given most restrictive possible setting (e.g., 066 or
  077) (CWE-732).
    (void) umask(uMask);

ANALYSIS SUMMARY:

Hits = 14
Lines analyzed = 518 in approximately 0.03 seconds (16440 lines/second)
Physical Source Lines of Code (SLOC) = 329
Hits@level = [0]  36 [1]   2 [2]   6 [3]   2 [4]   4 [5]   0
Hits@level+ = [0+]  50 [1+]  14 [2+]  12 [3+]   6 [4+]   4 [5+]   0
Hits/KSLOC@level+ = [0+] 151.976 [1+] 42.5532 [2+] 36.4742 [3+] 18.2371 [4+] 12.1581 [5+]   0
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.