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/xcalib-0.8.dfsg1/xcalib.c FINAL RESULTS: data/xcalib-0.8.dfsg1/xcalib.c:806:9: [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 (in_name, argv[i]); data/xcalib-0.8.dfsg1/xcalib.c:821:9: [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 (in_name, win_default_profile); data/xcalib-0.8.dfsg1/xcalib.c:1119:3: [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. vfprintf (stderr, fmt, args); data/xcalib-0.8.dfsg1/xcalib.c:1133:3: [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. vfprintf (stdout, fmt, args); data/xcalib-0.8.dfsg1/xcalib.c:1146:3: [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. vfprintf (stdout, fmt, args); data/xcalib-0.8.dfsg1/xcalib.c:235:12: [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. unsigned char cTmp[4]; data/xcalib-0.8.dfsg1/xcalib.c:255:10: [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). fp = fopen(filename, "rb"); data/xcalib-0.8.dfsg1/xcalib.c:508:3: [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 in_name[256] = { '\000' }; data/xcalib-0.8.dfsg1/xcalib.c:509:3: [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 tag_name[40] = { '\000' }; data/xcalib-0.8.dfsg1/xcalib.c:542:3: [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 win_default_profile[MAX_PATH+1]; data/xcalib-0.8.dfsg1/xcalib.c:600:16: [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). screen = atoi (argv[i]); data/xcalib-0.8.dfsg1/xcalib.c:608:20: [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). controller = atoi (argv[i]); data/xcalib-0.8.dfsg1/xcalib.c:644:19: [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). ramp_size = atoi(argv[i]); data/xcalib-0.8.dfsg1/xcalib.c:805:10: [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(argv[i]) < 255) data/xcalib-0.8.dfsg1/xcalib.c:820:10: [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(win_default_profile) < 255) ANALYSIS SUMMARY: Hits = 15 Lines analyzed = 1150 in approximately 0.04 seconds (29692 lines/second) Physical Source Lines of Code (SLOC) = 952 Hits@level = [0] 70 [1] 2 [2] 8 [3] 0 [4] 5 [5] 0 Hits@level+ = [0+] 85 [1+] 15 [2+] 13 [3+] 5 [4+] 5 [5+] 0 Hits/KSLOC@level+ = [0+] 89.2857 [1+] 15.7563 [2+] 13.6555 [3+] 5.2521 [4+] 5.2521 [5+] 0 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.