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/docbook2x-0.8.8/utf8trans/mtable.c Examining data/docbook2x-0.8.8/utf8trans/mtable.h Examining data/docbook2x-0.8.8/utf8trans/strings_buffer.c Examining data/docbook2x-0.8.8/utf8trans/strings_buffer.h Examining data/docbook2x-0.8.8/utf8trans/utf8trans.c FINAL RESULTS: data/docbook2x-0.8.8/utf8trans/strings_buffer.c:58:13: [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->cur, s); data/docbook2x-0.8.8/utf8trans/strings_buffer.c:66:5: [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->cur, s); data/docbook2x-0.8.8/utf8trans/utf8trans.c:199:19: [3] (buffer) getopt_long: Some older implementations do not protect against internal buffer overflows (CWE-120, CWE-20). Check implementation on installation, or limit the size of all string inputs. while((optc = getopt_long(argc, argv, "vhm", data/docbook2x-0.8.8/utf8trans/utf8trans.c:202:19: [3] (buffer) getopt: Some older implementations do not protect against internal buffer overflows (CWE-120, CWE-20). Check implementation on installation, or limit the size of all string inputs. while((optc = getopt(argc, argv, "vhm")) != -1) data/docbook2x-0.8.8/utf8trans/utf8trans.c:83:17: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). charmap_f = fopen(charmap_filename, "r"); data/docbook2x-0.8.8/utf8trans/utf8trans.c:107:17: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). f = fopen(argv[i], "r"); data/docbook2x-0.8.8/utf8trans/utf8trans.c:127:23: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). out = fopen(argv[i], "w"); data/docbook2x-0.8.8/utf8trans/utf8trans.c:268:12: [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[7]; data/docbook2x-0.8.8/utf8trans/strings_buffer.c:54:18: [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). size_t len = strlen(s)+1; data/docbook2x-0.8.8/utf8trans/utf8trans.c:340:20: [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). p = buf + (strlen(buf)-1); data/docbook2x-0.8.8/utf8trans/utf8trans.c:401:9: [1] (buffer) fgetc: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). b = fgetc(stream); data/docbook2x-0.8.8/utf8trans/utf8trans.c:423:17: [1] (buffer) fgetc: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). b = fgetc(stream); data/docbook2x-0.8.8/utf8trans/utf8trans.c:496:13: [1] (buffer) fgetc: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). c = fgetc(stream); ANALYSIS SUMMARY: Hits = 13 Lines analyzed = 891 in approximately 0.12 seconds (7502 lines/second) Physical Source Lines of Code (SLOC) = 639 Hits@level = [0] 15 [1] 5 [2] 4 [3] 2 [4] 2 [5] 0 Hits@level+ = [0+] 28 [1+] 13 [2+] 8 [3+] 4 [4+] 2 [5+] 0 Hits/KSLOC@level+ = [0+] 43.8185 [1+] 20.3443 [2+] 12.5196 [3+] 6.25978 [4+] 3.12989 [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.