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/ruby-uconv-0.6.1/uconv.c Examining data/ruby-uconv-0.6.1/u2e.c Examining data/ruby-uconv-0.6.1/s2u.c Examining data/ruby-uconv-0.6.1/s2u.h Examining data/ruby-uconv-0.6.1/u2e.h Examining data/ruby-uconv-0.6.1/uconv.h Examining data/ruby-uconv-0.6.1/hojo2u.h Examining data/ruby-uconv-0.6.1/ustring.c Examining data/ruby-uconv-0.6.1/e2u.c Examining data/ruby-uconv-0.6.1/u2s.h Examining data/ruby-uconv-0.6.1/ustring.h Examining data/ruby-uconv-0.6.1/u2s.c Examining data/ruby-uconv-0.6.1/e2u.h FINAL RESULTS: data/ruby-uconv-0.6.1/e2u.c:22:12: [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. unsigned char ue[4]; data/ruby-uconv-0.6.1/e2u.c:65:16: [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. unsigned char estr[4]; data/ruby-uconv-0.6.1/s2u.c:27:12: [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. unsigned char us[3]; data/ruby-uconv-0.6.1/s2u.c:71:16: [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. unsigned char sstr[3]; data/ruby-uconv-0.6.1/s2u.c:113:16: [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. unsigned char ustr[sizeof(WCHAR)*2]; data/ruby-uconv-0.6.1/s2u.c:114:18: [2] (buffer) MultiByteToWideChar: Requires maximum length in CHARACTERS, not bytes (CWE-120). int ulen = MultiByteToWideChar(SJIS_CODEPAGE, MB_PRECOMPOSED, s + i, 2, data/ruby-uconv-0.6.1/u2s.c:72:16: [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. unsigned char str[3]; data/ruby-uconv-0.6.1/ustring.c:54:3: [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(s->str + s->len, a, len); data/ruby-uconv-0.6.1/e2u.c:55:13: [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((char*)e); data/ruby-uconv-0.6.1/s2u.c:62:13: [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((char*)s); data/ruby-uconv-0.6.1/uconv.c:136:11: [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). inlen = strlen((char*)in); data/ruby-uconv-0.6.1/uconv.c:267:11: [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). inlen = strlen((char*)in); ANALYSIS SUMMARY: Hits = 12 Lines analyzed = 161659 in approximately 3.29 seconds (49211 lines/second) Physical Source Lines of Code (SLOC) = 161247 Hits@level = [0] 3 [1] 4 [2] 8 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 15 [1+] 12 [2+] 8 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 0.093025 [1+] 0.07442 [2+] 0.0496133 [3+] 0 [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.