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/chaosread-1.1/chaosread.c FINAL RESULTS: data/chaosread-1.1/chaosread.c:250:14: [3] (buffer) getopt_long: 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_long(argc, argv, "s:l:ibcrfV?", options, NULL)) != -1) { data/chaosread-1.1/chaosread.c:70:14: [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_serial); data/chaosread-1.1/chaosread.c:264:13: [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). else if (strlen(length_end)) ANALYSIS SUMMARY: Hits = 3 Lines analyzed = 328 in approximately 0.04 seconds (8057 lines/second) Physical Source Lines of Code (SLOC) = 270 Hits@level = [0] 10 [1] 2 [2] 0 [3] 1 [4] 0 [5] 0 Hits@level+ = [0+] 13 [1+] 3 [2+] 1 [3+] 1 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 48.1481 [1+] 11.1111 [2+] 3.7037 [3+] 3.7037 [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.