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/libsocketcan-0.0.11/include/can_netlink.h Examining data/libsocketcan-0.0.11/include/libsocketcan.h Examining data/libsocketcan-0.0.11/src/libsocketcan.c FINAL RESULTS: data/libsocketcan-0.0.11/src/libsocketcan.c:46:9: [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. #define fprintf(...) data/libsocketcan-0.0.11/include/can_netlink.h: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 name[16]; /* Name of the CAN controller hardware */ data/libsocketcan-0.0.11/src/libsocketcan.c:78:2: [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[1024]; data/libsocketcan-0.0.11/src/libsocketcan.c:125:2: [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(RTA_DATA(rta), &data, 4); data/libsocketcan-0.0.11/src/libsocketcan.c:147:2: [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(RTA_DATA(rta), data, alen); data/libsocketcan-0.0.11/src/libsocketcan.c:182:2: [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[16384]; data/libsocketcan-0.0.11/src/libsocketcan.c:357:2: [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 cbuf[64]; data/libsocketcan-0.0.11/src/libsocketcan.c:358:2: [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 nlbuf[1024 * 8]; data/libsocketcan-0.0.11/src/libsocketcan.c:418:16: [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. if (strcmp((char *)RTA_DATA(tb[IFLA_IFNAME]), name) == 0) data/libsocketcan-0.0.11/src/libsocketcan.c:427:6: [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(res, RTA_DATA(tb[IFLA_STATS64]), sizeof(struct rtnl_link_stats64)); data/libsocketcan-0.0.11/src/libsocketcan.c:443:6: [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(res, RTA_DATA(linkinfo[IFLA_INFO_XSTATS]), data/libsocketcan-0.0.11/src/libsocketcan.c:482:6: [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(res, data/libsocketcan-0.0.11/src/libsocketcan.c:492:6: [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(res, data/libsocketcan-0.0.11/src/libsocketcan.c:502:6: [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(res, data/libsocketcan-0.0.11/src/libsocketcan.c:513:6: [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(res, data/libsocketcan-0.0.11/src/libsocketcan.c:523:6: [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(res, data/libsocketcan-0.0.11/src/libsocketcan.c:633:6: [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). strlen(type)); ANALYSIS SUMMARY: Hits = 17 Lines analyzed = 1402 in approximately 0.06 seconds (25135 lines/second) Physical Source Lines of Code (SLOC) = 665 Hits@level = [0] 28 [1] 1 [2] 15 [3] 0 [4] 1 [5] 0 Hits@level+ = [0+] 45 [1+] 17 [2+] 16 [3+] 1 [4+] 1 [5+] 0 Hits/KSLOC@level+ = [0+] 67.6692 [1+] 25.5639 [2+] 24.0602 [3+] 1.50376 [4+] 1.50376 [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.