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/bluemon-1.4/bluemon-query.c Examining data/bluemon-1.4/bluemon-client.c Examining data/bluemon-1.4/bluetooth-monitor.c FINAL RESULTS: data/bluemon-1.4/bluemon-client.c:58:4: [4] (format) vprintf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. vprintf(msg, vargs); data/bluemon-1.4/bluemon-client.c:81:7: [4] (shell) system: This causes a new program to execute and is difficult to use safely (CWE-78). try using a library call that implements the same functionality if available. system(cmd); data/bluemon-1.4/bluetooth-monitor.c:522:7: [4] (format) vprintf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. vprintf(msg, vargs); data/bluemon-1.4/bluemon-client.c:221:22: [3] (buffer) getopt_long: 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 (-1 != (c = getopt_long(argc, argv, "-u:d:b:hVvp",long_opts, &idx))) { data/bluemon-1.4/bluetooth-monitor.c:432:22: [3] (buffer) getopt_long: 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 (-1 != (c = getopt_long(argc, argv, "-c:b:t:i:o:sqhVndvag:u:",long_opts, &idx))) { data/bluemon-1.4/bluemon-client.c:202:4: [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[30]; data/bluemon-1.4/bluetooth-monitor.c:441:31: [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). args->threshold = atoi(optarg); data/bluemon-1.4/bluetooth-monitor.c:444:30: [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). args->interval = atoi(optarg); data/bluemon-1.4/bluetooth-monitor.c:447:25: [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). args->uid = atoi(optarg); data/bluemon-1.4/bluetooth-monitor.c:450:25: [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). args->gid = atoi(optarg); data/bluemon-1.4/bluetooth-monitor.c:564:9: [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). fd = fopen("/var/run/bluemon.pid", "w"); data/bluemon-1.4/bluemon-client.c:278:56: [1] (buffer) strlen: Does not handle strings that are not \0-terminated; if given one it may perform an over-read (it could cause a crash if unprotected) (CWE-126). if (0 == strncasecmp(btid, sigvalue, strlen(btid))) data/bluemon-1.4/bluemon-client.c:298:56: [1] (buffer) strlen: Does not handle strings that are not \0-terminated; if given one it may perform an over-read (it could cause a crash if unprotected) (CWE-126). if (0 == strncasecmp(btid, sigvalue, strlen(btid))) data/bluemon-1.4/bluetooth-monitor.c:655:82: [1] (buffer) strlen: Does not handle strings that are not \0-terminated; if given one it may perform an over-read (it could cause a crash if unprotected) (CWE-126). if (0 == strncmp("", address, 1) || 0 == strncasecmp(btdev->btid, address, strlen(btdev->btid))) { data/bluemon-1.4/bluetooth-monitor.c:756:10: [1] (access) umask: Ensure that umask is given most restrictive possible setting (e.g., 066 or 077) (CWE-732). umask(0); ANALYSIS SUMMARY: Hits = 15 Lines analyzed = 1291 in approximately 0.05 seconds (26579 lines/second) Physical Source Lines of Code (SLOC) = 1015 Hits@level = [0] 33 [1] 4 [2] 6 [3] 2 [4] 3 [5] 0 Hits@level+ = [0+] 48 [1+] 15 [2+] 11 [3+] 5 [4+] 3 [5+] 0 Hits/KSLOC@level+ = [0+] 47.2906 [1+] 14.7783 [2+] 10.8374 [3+] 4.92611 [4+] 2.95567 [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.