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/freecontact-1.0.21/lib/freecontact.h Examining data/freecontact-1.0.21/lib/config.h Examining data/freecontact-1.0.21/lib/freecontact.cpp Examining data/freecontact-1.0.21/src/freecontact.cpp Examining data/freecontact-1.0.21/src/fc.h Examining data/freecontact-1.0.21/src/_write_bioxsd.cpp FINAL RESULTS: data/freecontact-1.0.21/lib/freecontact.cpp:471:35: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. freq_t ps_aliw[__ali.seqcnt]; memcpy(ps_aliw, __aliw.data(), __ali.seqcnt*sizeof(freq_t)); data/freecontact-1.0.21/lib/freecontact.cpp:695:23: [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). FILE *f = fopen("covm.dat", "w"); data/freecontact-1.0.21/lib/freecontact.cpp:755:27: [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("rho_m.dat", "w"); data/freecontact-1.0.21/lib/freecontact.cpp:1007:5: [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(alptr, __al.data(), __al.size()); data/freecontact-1.0.21/src/freecontact.cpp:271:13: [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 s[65536]; ANALYSIS SUMMARY: Hits = 5 Lines analyzed = 2373 in approximately 0.13 seconds (18892 lines/second) Physical Source Lines of Code (SLOC) = 1443 Hits@level = [0] 25 [1] 0 [2] 5 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 30 [1+] 5 [2+] 5 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 20.79 [1+] 3.465 [2+] 3.465 [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.