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/libnetfilter-cttimeout-1.0.0/include/linux/netfilter/nfnetlink_cttimeout.h Examining data/libnetfilter-cttimeout-1.0.0/include/linux/netfilter/nfnetlink.h Examining data/libnetfilter-cttimeout-1.0.0/include/linux/netfilter/nf_conntrack_tcp.h Examining data/libnetfilter-cttimeout-1.0.0/include/libnetfilter_cttimeout/libnetfilter_cttimeout.h Examining data/libnetfilter-cttimeout-1.0.0/src/libnetfilter_cttimeout.c Examining data/libnetfilter-cttimeout-1.0.0/src/internal.h Examining data/libnetfilter-cttimeout-1.0.0/examples/nfct-timeout-add.c Examining data/libnetfilter-cttimeout-1.0.0/examples/nfct-timeout-get.c FINAL RESULTS: data/libnetfilter-cttimeout-1.0.0/examples/nfct-timeout-add.c:22:2: [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 buf[MNL_SOCKET_BUFFER_SIZE]; data/libnetfilter-cttimeout-1.0.0/examples/nfct-timeout-add.c:42:58: [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). nfct_timeout_attr_set_u16(t, NFCT_TIMEOUT_ATTR_L3PROTO, atoi(argv[2])); data/libnetfilter-cttimeout-1.0.0/examples/nfct-timeout-add.c:43:57: [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). nfct_timeout_attr_set_u8(t, NFCT_TIMEOUT_ATTR_L4PROTO, atoi(argv[3])); data/libnetfilter-cttimeout-1.0.0/examples/nfct-timeout-get.c:22:2: [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 buf[4096]; data/libnetfilter-cttimeout-1.0.0/examples/nfct-timeout-get.c:47:2: [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 buf[MNL_SOCKET_BUFFER_SIZE]; data/libnetfilter-cttimeout-1.0.0/src/libnetfilter_cttimeout.c:132:2: [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 name[32]; /* object name. */ data/libnetfilter-cttimeout-1.0.0/src/libnetfilter_cttimeout.c:225:3: [1] (buffer) strncpy: Easily used incorrectly; doesn't always \0-terminate or check for invalid pointers [MS-banned] (CWE-120). strncpy(t->name, data, sizeof(t->name)); ANALYSIS SUMMARY: Hits = 7 Lines analyzed = 1270 in approximately 0.06 seconds (19959 lines/second) Physical Source Lines of Code (SLOC) = 902 Hits@level = [0] 12 [1] 1 [2] 6 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 19 [1+] 7 [2+] 6 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 21.0643 [1+] 7.76053 [2+] 6.65188 [3+] 0 [4+] 0 [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.