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/memtool-2018.03.0/fileaccess.h Examining data/memtool-2018.03.0/fileaccpriv.h Examining data/memtool-2018.03.0/memtool.c Examining data/memtool-2018.03.0/fileaccess.c Examining data/memtool-2018.03.0/acc_mmap.c Examining data/memtool-2018.03.0/acc_mdio.c FINAL RESULTS: data/memtool-2018.03.0/acc_mdio.c:60:2: [4] (buffer) strcpy: Does not check for buffer overflows when copying to destination [MS-banned] (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy easily misused). strcpy(ifr.ifr_name, mdio_fd->ifrn_name); data/memtool-2018.03.0/acc_mdio.c:99:2: [4] (buffer) strcpy: Does not check for buffer overflows when copying to destination [MS-banned] (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy easily misused). strcpy(ifr.ifr_name, mdio_fd->ifrn_name); data/memtool-2018.03.0/memtool.c:162:14: [4] (format) printf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. count -= printf(" %016" PRIx64, res); data/memtool-2018.03.0/memtool.c:168:14: [4] (format) printf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. count -= printf(" %08" PRIx32, res); data/memtool-2018.03.0/memtool.c:174:14: [4] (format) printf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. count -= printf(" %04" PRIx16, res); data/memtool-2018.03.0/memtool.c:237:16: [3] (buffer) getopt: Some older implementations do not protect against internal buffer overflows (CWE-120, CWE-20). Check implementation on installation, or limit the size of all string inputs. while ((opt = getopt(argc, argv, "bwlqs:xh")) != -1) { data/memtool-2018.03.0/memtool.c:346:16: [3] (buffer) getopt: Some older implementations do not protect against internal buffer overflows (CWE-120, CWE-20). Check implementation on installation, or limit the size of all string inputs. while ((opt = getopt(argc, argv, "bwlqd:h")) != -1) { data/memtool-2018.03.0/acc_mdio.c:38:2: [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 ifrn_name[IFNAMSIZ]; data/memtool-2018.03.0/acc_mdio.c:166:2: [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(mdio_fd->ifrn_name, spec, delim - spec); data/memtool-2018.03.0/acc_mmap.c:197:16: [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). mmap_fd->fd = open(spec, flags, S_IRUSR | S_IWUSR); data/memtool-2018.03.0/memtool.c:146:3: [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 linebuf[DISP_LINE_LEN]; data/memtool-2018.03.0/fileaccess.c:41:14: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). return mfd->read(mfd, offset, buf, nbytes, width); data/memtool-2018.03.0/fileaccpriv.h:16:12: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). ssize_t (*read)(struct memtool_fd *handle, off_t offset, ANALYSIS SUMMARY: Hits = 13 Lines analyzed = 1003 in approximately 0.03 seconds (29602 lines/second) Physical Source Lines of Code (SLOC) = 752 Hits@level = [0] 24 [1] 2 [2] 4 [3] 2 [4] 5 [5] 0 Hits@level+ = [0+] 37 [1+] 13 [2+] 11 [3+] 7 [4+] 5 [5+] 0 Hits/KSLOC@level+ = [0+] 49.2021 [1+] 17.2872 [2+] 14.6277 [3+] 9.30851 [4+] 6.64894 [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.