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/aha-0.5.1/aha.c FINAL RESULTS: data/aha-0.5.1/aha.c:29:7: [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. const char ansi_vt220_character_set[256][16] = data/aha-0.5.1/aha.c:77:11: [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 digit[8]; data/aha-0.5.1/aha.c:88:11: [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 digit[8]; data/aha-0.5.1/aha.c:112:4: [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(newelem->digit, digit, sizeof(digit)); data/aha-0.5.1/aha.c:198:30: [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. void make_rgb (int color_id, char str_rgb[12]){ data/aha-0.5.1/aha.c:206:3: [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(str_rgb, "%02x%02x%02x", grey, grey, grey); data/aha-0.5.1/aha.c:232:2: [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(str_rgb, "%02x%02x%02x", rgb_R, rgb_G, rgb_B); data/aha-0.5.1/aha.c:363:15: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). opts.iso = atoi(args[p+1]); data/aha-0.5.1/aha.c:379:14: [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). opts.fp = fopen(args[p+1],"r"); data/aha-0.5.1/aha.c:503:2: [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 encoding[16] = "UTF-8"; data/aha-0.5.1/aha.c:702:5: [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 buffer[1024]; data/aha-0.5.1/aha.c:1053:10: [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 rgb[12]; data/aha-0.5.1/aha.c:1078:10: [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 rgb[12]; data/aha-0.5.1/aha.c:68:11: [1] (buffer) fgetc: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). if ((c = fgetc(fp)) != EOF) data/aha-0.5.1/aha.c:693:12: [1] (buffer) fgetc: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). while ((c=fgetc(fp)) != EOF) ANALYSIS SUMMARY: Hits = 15 Lines analyzed = 1193 in approximately 0.05 seconds (24169 lines/second) Physical Source Lines of Code (SLOC) = 1090 Hits@level = [0] 187 [1] 2 [2] 13 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 202 [1+] 15 [2+] 13 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 185.321 [1+] 13.7615 [2+] 11.9266 [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.