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/libbloom-1.6/bloom.c Examining data/libbloom-1.6/bloom.h Examining data/libbloom-1.6/misc/test/basic.c Examining data/libbloom-1.6/misc/test/perf.c Examining data/libbloom-1.6/misc/test/test.c Examining data/libbloom-1.6/murmur2/MurmurHash2.c Examining data/libbloom-1.6/murmur2/murmurhash2.h FINAL RESULTS: data/libbloom-1.6/misc/test/perf.c:44:12: [2] (misc) open: 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). int fd = open("/dev/urandom", O_RDONLY); data/libbloom-1.6/misc/test/perf.c:121:17: [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). int count = atoi(argv[2]); data/libbloom-1.6/misc/test/test.c:79:3: [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 block[elem_size]; data/libbloom-1.6/misc/test/test.c:85:12: [2] (misc) open: 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). int fd = open("/dev/urandom", O_RDONLY); data/libbloom-1.6/misc/test/test.c:102:5: [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(savedp, block, elem_size); data/libbloom-1.6/misc/test/test.c:267:14: [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). for (e = atoi(argv[2]); e <= atoi(argv[3]); e+= atoi(argv[4])) { data/libbloom-1.6/misc/test/test.c:267:34: [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). for (e = atoi(argv[2]); e <= atoi(argv[3]); e+= atoi(argv[4])) { data/libbloom-1.6/misc/test/test.c:267:53: [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). for (e = atoi(argv[2]); e <= atoi(argv[3]); e+= atoi(argv[4])) { data/libbloom-1.6/misc/test/test.c:279:23: [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). return add_random(atoi(argv[2]), atof(argv[3]), atoi(argv[4]), 0, 1, 32, 1); data/libbloom-1.6/misc/test/test.c:279:53: [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). return add_random(atoi(argv[2]), atof(argv[3]), atoi(argv[4]), 0, 1, 32, 1); data/libbloom-1.6/misc/test/test.c:286:22: [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). return perf_loop(atoi(argv[2]), atoi(argv[3])); data/libbloom-1.6/misc/test/test.c:286:37: [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). return perf_loop(atoi(argv[2]), atoi(argv[3])); data/libbloom-1.6/misc/test/perf.c:45:3: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). read(fd, &n, sizeof(uint64_t)); data/libbloom-1.6/misc/test/test.c:101:12: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). assert(read(fd, block, elem_size) == elem_size); ANALYSIS SUMMARY: Hits = 14 Lines analyzed = 889 in approximately 0.05 seconds (16212 lines/second) Physical Source Lines of Code (SLOC) = 499 Hits@level = [0] 35 [1] 2 [2] 12 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 49 [1+] 14 [2+] 12 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 98.1964 [1+] 28.0561 [2+] 24.0481 [3+] 0 [4+] 0 [5+] 0 Dot directories skipped = 2 (--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.