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/python-lupa-1.9+dfsg/lupa/_lupa.c FINAL RESULTS: data/python-lupa-1.9+dfsg/lupa/_lupa.c:831:5: [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(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c); data/python-lupa-1.9+dfsg/lupa/_lupa.c:34201:18: [3] (random) setstate: 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. if (!setstate) PyErr_Clear(); data/python-lupa-1.9+dfsg/lupa/_lupa.c:34202:18: [3] (random) setstate: 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. if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) { data/python-lupa-1.9+dfsg/lupa/_lupa.c:34202:58: [3] (random) setstate: 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. if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) { data/python-lupa-1.9+dfsg/lupa/_lupa.c:34223:16: [3] (random) setstate: 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. Py_XDECREF(setstate); data/python-lupa-1.9+dfsg/lupa/_lupa.c:784:9: [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 ascii_chars[128]; data/python-lupa-1.9+dfsg/lupa/_lupa.c:34253:5: [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 warning[200]; data/python-lupa-1.9+dfsg/lupa/_lupa.c:35452:5: [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 ctversion[4], rtversion[4]; data/python-lupa-1.9+dfsg/lupa/_lupa.c:35456:9: [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 message[200]; data/python-lupa-1.9+dfsg/lupa/_lupa.c:708:87: [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). #define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s)) data/python-lupa-1.9+dfsg/lupa/_lupa.c:829:52: [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). __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c) + 1); data/python-lupa-1.9+dfsg/lupa/_lupa.c:4274:69: [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). __pyx_t_6 = __Pyx_decode_c_string(__pyx_v_lua_type_name, 0, strlen(__pyx_v_lua_type_name), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 121, __pyx_L5_error) data/python-lupa-1.9+dfsg/lupa/_lupa.c:26996:38: [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). __pyx_v_end = (__pyx_v_fname + strlen(__pyx_v_fname)); data/python-lupa-1.9+dfsg/lupa/_lupa.c:31937:23: [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 slen = strlen(cstring); data/python-lupa-1.9+dfsg/lupa/_lupa.c:35500:65: [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). return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str)); ANALYSIS SUMMARY: Hits = 15 Lines analyzed = 35722 in approximately 0.91 seconds (39214 lines/second) Physical Source Lines of Code (SLOC) = 20042 Hits@level = [0] 0 [1] 6 [2] 4 [3] 4 [4] 1 [5] 0 Hits@level+ = [0+] 15 [1+] 15 [2+] 9 [3+] 5 [4+] 1 [5+] 0 Hits/KSLOC@level+ = [0+] 0.748428 [1+] 0.748428 [2+] 0.449057 [3+] 0.249476 [4+] 0.0498952 [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.