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/aesfix-1.0.1/aesfix.cpp Examining data/aesfix-1.0.1/aes.h Examining data/aesfix-1.0.1/errvect.cpp Examining data/aesfix-1.0.1/errvect.h FINAL RESULTS: data/aesfix-1.0.1/aesfix.cpp:249:5: [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 a[3]; data/aesfix-1.0.1/aesfix.cpp:267:13: [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). FILE *f = fopen(filename, "r"); data/aesfix-1.0.1/aesfix.cpp:250:17: [1] (buffer) fgetc: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). if ((a[0] = fgetc(f)) == EOF) data/aesfix-1.0.1/aesfix.cpp:255:19: [1] (buffer) fgetc: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). if ((a[1] = fgetc(f)) == EOF) ANALYSIS SUMMARY: Hits = 4 Lines analyzed = 461 in approximately 0.02 seconds (18450 lines/second) Physical Source Lines of Code (SLOC) = 365 Hits@level = [0] 10 [1] 2 [2] 2 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 14 [1+] 4 [2+] 2 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 38.3562 [1+] 10.9589 [2+] 5.47945 [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.