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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c FINAL RESULTS: data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:757:5: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:26417:5: [4] (format) vsnprintf: If format strings can be influenced by an attacker, they can be exploited, and note that sprintf variations do not always \0-terminate (CWE-134). Use a constant for the format specification. vsnprintf(msg, 200, fmt, vargs); data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:27430:18: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:27431:18: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:27431:58: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:27452:16: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:710:9: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:19138:27: [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. __pyx_v_resultp = ((((char **)__pyx_v_resultp)[0]) + __pyx_v_suboffset); data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:20879:14: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. (void)(memcpy(__pyx_v_dst_data, __pyx_v_src_data, (__pyx_v_itemsize * __pyx_v_dst_extent))); data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:20911:16: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. (void)(memcpy(__pyx_v_dst_data, __pyx_v_src_data, __pyx_v_itemsize)); data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:21416:12: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. (void)(memcpy(__pyx_v_result, __pyx_v_src->data, __pyx_v_size)); data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:22228:14: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. (void)(memcpy(__pyx_v_dst.data, __pyx_v_src.data, __pyx_memoryview_slice_get_size((&__pyx_v_src), __pyx_v_ndim))); data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:22833:14: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. (void)(memcpy(__pyx_v_data, __pyx_v_item, __pyx_v_itemsize)); data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:25161:3: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(&(__pyx_memoryview_thread_locks[0]), __pyx_t_4, sizeof(__pyx_memoryview_thread_locks[0]) * (8)); data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:26411:5: [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 msg[200]; data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:30689:5: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:30693:9: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:30730:5: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:635:87: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:755:52: [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)); data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:12153:56: [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_4 = __Pyx_decode_c_string(__pyx_v_mode, 0, strlen(__pyx_v_mode), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_4)) __PYX_ERR(2, 248, __pyx_L1_error) data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:12197:56: [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_3 = __Pyx_decode_c_string(__pyx_v_mode, 0, strlen(__pyx_v_mode), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 250, __pyx_L1_error) data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:14687:20: [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_10 = strlen(__pyx_v_self->view.format); data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:21588:53: [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_2 = __Pyx_decode_c_string(__pyx_v_msg, 0, strlen(__pyx_v_msg), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_2)) __PYX_ERR(2, 1254, __pyx_L1_error) data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:21712:55: [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_3 = __Pyx_decode_c_string(__pyx_v_msg, 0, strlen(__pyx_v_msg), NULL, NULL, PyUnicode_DecodeASCII); if (unlikely(!__pyx_t_3)) __PYX_ERR(2, 1259, __pyx_L1_error) data/python-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:26864:23: [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-geotiepoints-1.2.0/geotiepoints/multilinear_cython.c:30820:65: [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 = 27 Lines analyzed = 31035 in approximately 0.77 seconds (40141 lines/second) Physical Source Lines of Code (SLOC) = 18272 Hits@level = [0] 0 [1] 9 [2] 12 [3] 4 [4] 2 [5] 0 Hits@level+ = [0+] 27 [1+] 27 [2+] 18 [3+] 6 [4+] 2 [5+] 0 Hits/KSLOC@level+ = [0+] 1.47767 [1+] 1.47767 [2+] 0.985114 [3+] 0.328371 [4+] 0.109457 [5+] 0 Dot directories skipped = 2 (--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.