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/cffi-0.23.0/tests/libtest.c Examining data/cffi-0.23.0/tests/libtest2.c Examining data/cffi-0.23.0/tests/libfsbv.c Examining data/cffi-0.23.0/grovel/common.h FINAL RESULTS: data/cffi-0.23.0/tests/libtest.c:72:5: [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(p, str); data/cffi-0.23.0/grovel/common.h:54:12: [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 buf[256]; data/cffi-0.23.0/tests/libfsbv.c:164:13: [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). int len = strlen(string); data/cffi-0.23.0/tests/libtest.c:71:22: [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 *p = malloc(strlen(str) + 1); ANALYSIS SUMMARY: Hits = 4 Lines analyzed = 1272 in approximately 0.10 seconds (12985 lines/second) Physical Source Lines of Code (SLOC) = 834 Hits@level = [0] 10 [1] 2 [2] 1 [3] 0 [4] 1 [5] 0 Hits@level+ = [0+] 14 [1+] 4 [2+] 2 [3+] 1 [4+] 1 [5+] 0 Hits/KSLOC@level+ = [0+] 16.7866 [1+] 4.79616 [2+] 2.39808 [3+] 1.19904 [4+] 1.19904 [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.