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/imvirt-0.9.6/helper/detect.c Examining data/imvirt-0.9.6/helper/detect.h Examining data/imvirt-0.9.6/helper/hvm.c Examining data/imvirt-0.9.6/helper/hyperv.c Examining data/imvirt-0.9.6/helper/pillbox.c Examining data/imvirt-0.9.6/helper/vmware.c Examining data/imvirt-0.9.6/helper/xen.c FINAL RESULTS: data/imvirt-0.9.6/helper/pillbox.c:43:2: [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. printf(",idt,%" PRIu64 ",idt2,%" PRIu64, old, idt); data/imvirt-0.9.6/helper/pillbox.c:48:3: [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. printf(",idt,%" PRIu64, old); data/imvirt-0.9.6/helper/pillbox.c:62:2: [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. printf(",gdt,%" PRIu64 ",gdt2,%" PRIu64, old, gdt); data/imvirt-0.9.6/helper/pillbox.c:67:3: [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. printf(",gdt,%" PRIu64, old); data/imvirt-0.9.6/helper/pillbox.c:75:3: [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. printf(",ldt,%" PRIu64, ldt); data/imvirt-0.9.6/helper/pillbox.c:83:3: [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. printf(",tr,%" PRIu64, tr); data/imvirt-0.9.6/helper/detect.c:36:20: [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 ((opts = getopt(argc, argv, "c")) != EOF) { data/imvirt-0.9.6/helper/hvm.c:35:5: [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 signature[13]; data/imvirt-0.9.6/helper/hvm.c:38:5: [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(&signature[0], &ebx, 4); data/imvirt-0.9.6/helper/hvm.c:39:5: [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(&signature[4], &ecx, 4); data/imvirt-0.9.6/helper/hvm.c:40:5: [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(&signature[8], &edx, 4); data/imvirt-0.9.6/helper/hyperv.c:36:5: [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 signature[13]; data/imvirt-0.9.6/helper/hyperv.c:39:5: [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(&signature[0], &ebx, 4); data/imvirt-0.9.6/helper/hyperv.c:40:5: [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(&signature[4], &ecx, 4); data/imvirt-0.9.6/helper/hyperv.c:41:5: [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(&signature[8], &edx, 4); data/imvirt-0.9.6/helper/xen.c:64:5: [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 signature[13]; data/imvirt-0.9.6/helper/xen.c:67:5: [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(&signature[0], &ebx, 4); data/imvirt-0.9.6/helper/xen.c:68:5: [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(&signature[4], &ecx, 4); data/imvirt-0.9.6/helper/xen.c:69:5: [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(&signature[8], &edx, 4); data/imvirt-0.9.6/helper/hvm.c:50:8: [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(signature) && isprint(signature[0])) { ANALYSIS SUMMARY: Hits = 20 Lines analyzed = 590 in approximately 0.07 seconds (8073 lines/second) Physical Source Lines of Code (SLOC) = 316 Hits@level = [0] 10 [1] 1 [2] 12 [3] 1 [4] 6 [5] 0 Hits@level+ = [0+] 30 [1+] 20 [2+] 19 [3+] 7 [4+] 6 [5+] 0 Hits/KSLOC@level+ = [0+] 94.9367 [1+] 63.2911 [2+] 60.1266 [3+] 22.1519 [4+] 18.9873 [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.