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/libstring-approx-perl-3.28/apse.c Examining data/libstring-approx-perl-3.28/apse.h FINAL RESULTS: data/libstring-approx-perl-3.28/apse.c:138:12: [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 s[APSE_BITS_IN_BITVEC + 1] = { 0 }; /* non-reentrant */ data/libstring-approx-perl-3.28/apse.c:146:12: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. (void)memcpy(s + i, b + ((v & 0x0f) << 2), (size_t)4); data/libstring-approx-perl-3.28/apse.c:577:2: [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(ap->fold_mask, data/libstring-approx-perl-3.28/apse.c:1008:8: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. (void)memcpy(ap->prev_state, ap->state, ap->bytes_in_all_states); data/libstring-approx-perl-3.28/apse.c:1055:8: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. (void)memcpy(ap->prev_state, ap->state, data/libstring-approx-perl-3.28/apse.c:1098:8: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. (void)memcpy(ap->prev_state, ap->state, data/libstring-approx-perl-3.28/apse.c:1232:12: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. (void)memcpy(ap->prev_state, ap->state, data/libstring-approx-perl-3.28/apse.c:920:44: [1] (buffer) equal: Function does not check the second iterator for over-read conditions (CWE-126). This function is often discouraged by most C++ coding standards in favor of its safer alternatives provided since C++14. Consider using a form of this function that checks the second iterator before potentially overflowing it. printf("(equal = %d, active = %d)\n", equal, active); data/libstring-approx-perl-3.28/apse.c:925:4: [1] (buffer) equal: Function does not check the second iterator for over-read conditions (CWE-126). This function is often discouraged by most C++ coding standards in favor of its safer alternatives provided since C++14. Consider using a form of this function that checks the second iterator before potentially overflowing it. (equal < ap->prev_equal && data/libstring-approx-perl-3.28/apse.c:940:24: [1] (buffer) equal: Function does not check the second iterator for over-read conditions (CWE-126). This function is often discouraged by most C++ coding standards in favor of its safer alternatives provided since C++14. Consider using a form of this function that checks the second iterator before potentially overflowing it. ap->prev_equal = equal; ANALYSIS SUMMARY: Hits = 10 Lines analyzed = 1710 in approximately 0.06 seconds (26583 lines/second) Physical Source Lines of Code (SLOC) = 1338 Hits@level = [0] 53 [1] 3 [2] 7 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 63 [1+] 10 [2+] 7 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 47.0852 [1+] 7.47384 [2+] 5.23169 [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.