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/libdogleg-0.14/dogleg.c Examining data/libdogleg-0.14/dogleg.h Examining data/libdogleg-0.14/sample.c FINAL RESULTS: data/libdogleg-0.14/dogleg.c:22:33: [4] (format) fprintf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. #define SAY_NONEWLINE(fmt, ...) fprintf(stderr, "libdogleg at %s:%d: " fmt, __FILE__, __LINE__, ## __VA_ARGS__) data/libdogleg-0.14/dogleg.c:968:13: [4] (format) vfprintf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. int ret = vfprintf(stderr, s, ap); data/libdogleg-0.14/sample.c:58:16: [3] (random) random: This function is not sufficiently random for security-related functions such as key and nonce creation (CWE-327). Use a more secure technique for acquiring random values. ((double)random() / (double)RAND_MAX - 0.5) * 1.0; // +- 0.5 units of uniformly-random noise data/libdogleg-0.14/sample.c:192:3: [3] (random) srandom: This function is not sufficiently random for security-related functions such as key and nonce creation (CWE-327). Use a more secure technique for acquiring random values. srandom( 0 ); // I want determinism here data/libdogleg-0.14/sample.c:204:21: [3] (random) random: This function is not sufficiently random for security-related functions such as key and nonce creation (CWE-327). Use a more secure technique for acquiring random values. p[i] = ((double)random() / (double)RAND_MAX - 0.1) * 1.0; // +- 0.1 units of uniformly-random noise data/libdogleg-0.14/dogleg.c:248:3: [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(p, p0, Nstate * sizeof(double)); data/libdogleg-0.14/dogleg.c:548:5: [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( point->updateGN_dense, point->Jt_x, ctx->Nstate * sizeof(point->updateGN_dense[0])); data/libdogleg-0.14/dogleg.c:1045:3: [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(ctx->beforeStep->p, p, Nstate * sizeof(double)); data/libdogleg-0.14/dogleg.c:1053:3: [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(p, ctx->beforeStep->p, Nstate * sizeof(double)); ANALYSIS SUMMARY: Hits = 9 Lines analyzed = 1509 in approximately 0.04 seconds (36448 lines/second) Physical Source Lines of Code (SLOC) = 1000 Hits@level = [0] 15 [1] 0 [2] 4 [3] 3 [4] 2 [5] 0 Hits@level+ = [0+] 24 [1+] 9 [2+] 9 [3+] 5 [4+] 2 [5+] 0 Hits/KSLOC@level+ = [0+] 24 [1+] 9 [2+] 9 [3+] 5 [4+] 2 [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.