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/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c Examining data/ruamel.yaml.clib-0.2.2/_ruamel_yaml.h Examining data/ruamel.yaml.clib-0.2.2/api.c Examining data/ruamel.yaml.clib-0.2.2/config.h Examining data/ruamel.yaml.clib-0.2.2/dumper.c Examining data/ruamel.yaml.clib-0.2.2/emitter.c Examining data/ruamel.yaml.clib-0.2.2/loader.c Examining data/ruamel.yaml.clib-0.2.2/parser.c Examining data/ruamel.yaml.clib-0.2.2/reader.c Examining data/ruamel.yaml.clib-0.2.2/scanner.c Examining data/ruamel.yaml.clib-0.2.2/writer.c Examining data/ruamel.yaml.clib-0.2.2/yaml.h Examining data/ruamel.yaml.clib-0.2.2/yaml_private.h FINAL RESULTS: data/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:770:5: [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/ruamel.yaml.clib-0.2.2/dumper.c:254:5: [4] (format) sprintf: Potential format string problem (CWE-134). Make format string constant. sprintf((char *)anchor, ANCHOR_TEMPLATE, anchor_id); data/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:27557:18: [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/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:27558:18: [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/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:27558:58: [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/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:27579:16: [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/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:723:9: [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/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:14548:5: [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_v_buffer, (PyString_AS_STRING(__pyx_t_1) + __pyx_v_parser->stream_cache_pos), __pyx_v_size); data/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:28562:5: [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/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:28566:9: [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/ruamel.yaml.clib-0.2.2/api.c:108:5: [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(*a_pointer, *b_start, *b_pointer - *b_start); data/ruamel.yaml.clib-0.2.2/api.c:264:5: [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(buffer, parser->input.string.current, size); data/ruamel.yaml.clib-0.2.2/api.c:426:9: [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(emitter->output.string.buffer data/ruamel.yaml.clib-0.2.2/api.c:435:5: [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(emitter->output.string.buffer data/ruamel.yaml.clib-0.2.2/api.c:854:5: [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(value_copy, value, length); data/ruamel.yaml.clib-0.2.2/api.c:1230:5: [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(value_copy, value, length); data/ruamel.yaml.clib-0.2.2/emitter.c:557:5: [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 version_buf[VERSION_BUF_LEN]; data/ruamel.yaml.clib-0.2.2/emitter.c:613:13: [2] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. Risk is low because the source has a constant maximum length. sprintf(version_buf, "%d.%d", vdp.major, vdp.minor); data/ruamel.yaml.clib-0.2.2/emitter.c:2193:5: [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 indent_hint[2]; data/ruamel.yaml.clib-0.2.2/parser.c:613:25: [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(tag, tag_directive->prefix, prefix_len); data/ruamel.yaml.clib-0.2.2/parser.c:614:25: [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(tag+prefix_len, tag_suffix, suffix_len); data/ruamel.yaml.clib-0.2.2/scanner.c:2594:9: [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(string.start, head+1, length-1); data/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:647:87: [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/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:768:52: [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/ruamel.yaml.clib-0.2.2/_ruamel_yaml.c:28610:65: [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)); data/ruamel.yaml.clib-0.2.2/_ruamel_yaml.h:6:59: [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 PyUnicode_FromString(s) PyUnicode_DecodeUTF8((s), strlen(s), "strict") data/ruamel.yaml.clib-0.2.2/api.c:741:25: [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). strlen((char *)tag_directive->handle))) data/ruamel.yaml.clib-0.2.2/api.c:744:25: [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). strlen((char *)tag_directive->prefix))) data/ruamel.yaml.clib-0.2.2/api.c:805:34: [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). if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0; data/ruamel.yaml.clib-0.2.2/api.c:836:38: [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). if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error; data/ruamel.yaml.clib-0.2.2/api.c:842:35: [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). if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; data/ruamel.yaml.clib-0.2.2/api.c:848:18: [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). length = strlen((char *)value); data/ruamel.yaml.clib-0.2.2/api.c:886:38: [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). if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error; data/ruamel.yaml.clib-0.2.2/api.c:892:35: [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). if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; data/ruamel.yaml.clib-0.2.2/api.c:941:38: [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). if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error; data/ruamel.yaml.clib-0.2.2/api.c:947:35: [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). if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; data/ruamel.yaml.clib-0.2.2/api.c:1082:25: [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). strlen((char *)tag_directive->handle))) data/ruamel.yaml.clib-0.2.2/api.c:1085:25: [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). strlen((char *)tag_directive->prefix))) data/ruamel.yaml.clib-0.2.2/api.c:1219:31: [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). if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; data/ruamel.yaml.clib-0.2.2/api.c:1224:18: [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). length = strlen((char *)value); data/ruamel.yaml.clib-0.2.2/api.c:1271:31: [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). if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; data/ruamel.yaml.clib-0.2.2/api.c:1316:31: [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). if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error; data/ruamel.yaml.clib-0.2.2/emitter.c:629:29: [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). strlen((char *)tag_directive->handle))) data/ruamel.yaml.clib-0.2.2/emitter.c:632:29: [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). strlen((char *)tag_directive->prefix), 1)) data/ruamel.yaml.clib-0.2.2/emitter.c:1367:21: [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). handle_length = strlen((char *)tag_directive.handle); data/ruamel.yaml.clib-0.2.2/emitter.c:1368:21: [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). prefix_length = strlen((char *)tag_directive.prefix); data/ruamel.yaml.clib-0.2.2/emitter.c:1416:21: [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). anchor_length = strlen((char *)anchor); data/ruamel.yaml.clib-0.2.2/emitter.c:1453:18: [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). tag_length = strlen((char *)tag); data/ruamel.yaml.clib-0.2.2/emitter.c:1463:32: [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 prefix_length = strlen((char *)tag_directive->prefix); data/ruamel.yaml.clib-0.2.2/emitter.c:1470:17: [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). strlen((char *)tag_directive->handle); data/ruamel.yaml.clib-0.2.2/emitter.c:1803:24: [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). indicator_length = strlen(indicator); data/ruamel.yaml.clib-0.2.2/parser.c:606:45: [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 prefix_len = strlen((char *)tag_directive->prefix); data/ruamel.yaml.clib-0.2.2/parser.c:607:45: [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 suffix_len = strlen((char *)tag_suffix); data/ruamel.yaml.clib-0.2.2/scanner.c:2439:61: [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). if (handle[0] == '!' && handle[1] != '\0' && handle[strlen((char *)handle)-1] == '!') data/ruamel.yaml.clib-0.2.2/scanner.c:2573:28: [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 length = head ? strlen((char *)head) : 0; ANALYSIS SUMMARY: Hits = 55 Lines analyzed = 41735 in approximately 0.98 seconds (42516 lines/second) Physical Source Lines of Code (SLOC) = 23115 Hits@level = [0] 1 [1] 33 [2] 16 [3] 4 [4] 2 [5] 0 Hits@level+ = [0+] 56 [1+] 55 [2+] 22 [3+] 6 [4+] 2 [5+] 0 Hits/KSLOC@level+ = [0+] 2.42267 [1+] 2.37941 [2+] 0.951763 [3+] 0.259572 [4+] 0.0865239 [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.