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/vmtouch-1.3.1/vmtouch.c FINAL RESULTS: data/vmtouch-1.3.1/vmtouch.c:193:3: [4] (format) vsnprintf: If format strings can be influenced by an attacker, they can be exploited, and note that sprintf variations do not always \0-terminate (CWE-134). Use a constant for the format specification. vsnprintf(buf, sizeof(buf), fmt, ap); data/vmtouch-1.3.1/vmtouch.c:206:3: [4] (format) vsnprintf: If format strings can be influenced by an attacker, they can be exploited, and note that sprintf variations do not always \0-terminate (CWE-134). Use a constant for the format specification. vsnprintf(buf, sizeof(buf), fmt, ap); data/vmtouch-1.3.1/vmtouch.c:267:5: [4] (format) snprintf: If format strings can be influenced by an attacker, they can be exploited, and note that sprintf variations do not always \0-terminate (CWE-134). Use a constant for the format specification. snprintf(output, sizeof(output), "%" PRId64, inp); data/vmtouch-1.3.1/vmtouch.c:466:3: [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. fprintf(out, "] %" PRId64 "/%" PRId64, pages_in_core, pages_in_file); data/vmtouch-1.3.1/vmtouch.c:923:15: [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((ch = getopt(argc, argv, "tevqlLdfFh0i:I:p:b:m:P:w")) != -1) { data/vmtouch-1.3.1/vmtouch.c:144:1: [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 *ignore_list[MAX_NUMBER_OF_IGNORES]; data/vmtouch-1.3.1/vmtouch.c:145:1: [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 *filename_filter_list[MAX_NUMBER_OF_FILENAME_FILTERS]; data/vmtouch-1.3.1/vmtouch.c:190:3: [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 buf[4096]; data/vmtouch-1.3.1/vmtouch.c:203:3: [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 buf[4096]; data/vmtouch-1.3.1/vmtouch.c:264:10: [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 output[100]; data/vmtouch-1.3.1/vmtouch.c:494:8: [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). fd = open(path, open_flags, 0); data/vmtouch-1.3.1/vmtouch.c:499:10: [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). fd = open(path, open_flags, 0); data/vmtouch-1.3.1/vmtouch.c:726:3: [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 npath[PATH_MAX]; data/vmtouch-1.3.1/vmtouch.c:847:9: [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). f = fopen(path, "r"); data/vmtouch-1.3.1/vmtouch.c:877:7: [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). f = fopen(o_pidfile, "w"); data/vmtouch-1.3.1/vmtouch.c:240:15: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). exit_read = read(exit_pipe[0], &exit_value, 1); data/vmtouch-1.3.1/vmtouch.c:292:11: [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). int len=strlen(inp); data/vmtouch-1.3.1/vmtouch.c:363:7: [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 (strlen(inp) > MAX_FILENAME_LENGTH) { data/vmtouch-1.3.1/vmtouch.c:382:7: [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 (strlen(inp) > MAX_FILENAME_LENGTH) { data/vmtouch-1.3.1/vmtouch.c:728:21: [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). int tp_path_len = strlen(path); data/vmtouch-1.3.1/vmtouch.c:841:11: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). ssize_t read; ANALYSIS SUMMARY: Hits = 21 Lines analyzed = 1039 in approximately 0.04 seconds (23516 lines/second) Physical Source Lines of Code (SLOC) = 762 Hits@level = [0] 53 [1] 6 [2] 10 [3] 1 [4] 4 [5] 0 Hits@level+ = [0+] 74 [1+] 21 [2+] 15 [3+] 5 [4+] 4 [5+] 0 Hits/KSLOC@level+ = [0+] 97.1129 [1+] 27.5591 [2+] 19.685 [3+] 6.56168 [4+] 5.24934 [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.