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/libnet-rawip-perl-0.25/eth.c
Examining data/libnet-rawip-perl-0.25/ifaddrlist.c
Examining data/libnet-rawip-perl-0.25/ifaddrlist.h
Examining data/libnet-rawip-perl-0.25/ip.h
Examining data/libnet-rawip-perl-0.25/rdev.c
Examining data/libnet-rawip-perl-0.25/solaris.h
Examining data/libnet-rawip-perl-0.25/util.c
FINAL RESULTS:
data/libnet-rawip-perl-0.25/eth.c:134:5: [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((char *)spkt.spkt_device, eth_device);
data/libnet-rawip-perl-0.25/eth.c:240:11: [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).
(void)strcpy(ifr.ifr_name, dev);
data/libnet-rawip-perl-0.25/ifaddrlist.c:56:15: [4] (buffer) sprintf:
Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
vsnprintf.
(void)sprintf(errbuf, "socket: %s", strerror(errno));
data/libnet-rawip-perl-0.25/ifaddrlist.c:66:15: [4] (buffer) sprintf:
Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
vsnprintf.
(void)sprintf(errbuf, "SIOCGIFCONF: %s", strerror(errno));
data/libnet-rawip-perl-0.25/ifaddrlist.c:96:19: [4] (buffer) sprintf:
Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
vsnprintf.
(void)sprintf(errbuf,
data/libnet-rawip-perl-0.25/ifaddrlist.c:111:13: [4] (buffer) sprintf:
Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
vsnprintf.
sprintf(errbuf, "SIOCGIFADDR: %s: %s", device, strerror(errno));
data/libnet-rawip-perl-0.25/eth.c:113:13: [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(hwaddr,LLADDR(dla),dla->sdl_alen);
data/libnet-rawip-perl-0.25/eth.c:177:9: [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 arp_dev[16];
data/libnet-rawip-perl-0.25/eth.c:188:5: [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(eth_mac, req.arp_ha.sa_data, ETH_ALEN);
data/libnet-rawip-perl-0.25/eth.c:227:9: [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(eth_mac,LLADDR(sdl),sdl->sdl_alen);
data/libnet-rawip-perl-0.25/eth.c:277:5: [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(my_eth_mac, ifr.ifr_hwaddr.sa_data,ETH_ALEN);
data/libnet-rawip-perl-0.25/ifaddrlist.c:49:5: [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 device[sizeof(ifr.ifr_name) + 1];
data/libnet-rawip-perl-0.25/rdev.c:100:9: [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(name,ifr->ifr_name,len);
data/libnet-rawip-perl-0.25/util.c:129:7: [2] (buffer) bcopy:
Does not check for buffer overflows when copying to destination (CWE-120).
Make sure destination can always hold the source data.
bcopy (target->h_addr, resolved_ip, sizeof (struct in_addr));
data/libnet-rawip-perl-0.25/util.c:183:2: [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 device[sizeof "/dev/bpf000"];
data/libnet-rawip-perl-0.25/util.c:185:9: [2] (buffer) sprintf:
Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
vsnprintf. Risk is low because the source has a constant maximum length.
(void)sprintf(device, "/dev/bpf%d", n++);
data/libnet-rawip-perl-0.25/util.c:186:8: [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(device, O_WRONLY);
data/libnet-rawip-perl-0.25/eth.c:82:13: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(ifreq.ifr_name, ifr->ifr_name,
data/libnet-rawip-perl-0.25/ifaddrlist.c:92:9: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(ifr.ifr_name, ifrp->ifr_name, sizeof(ifr.ifr_name));
data/libnet-rawip-perl-0.25/ifaddrlist.c:107:15: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
(void)strncpy(device, ifr.ifr_name, sizeof(ifr.ifr_name));
data/libnet-rawip-perl-0.25/ifaddrlist.c:119:19: [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).
al->len = strlen(device);
data/libnet-rawip-perl-0.25/rdev.c:53:4: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(ifreq.ifr_name, ifr->ifr_name,
data/libnet-rawip-perl-0.25/rdev.c:99:15: [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).
len = strlen(ifr->ifr_name);
ANALYSIS SUMMARY:
Hits = 23
Lines analyzed = 854 in approximately 0.05 seconds (17763 lines/second)
Physical Source Lines of Code (SLOC) = 740
Hits@level = [0] 1 [1] 6 [2] 11 [3] 0 [4] 6 [5] 0
Hits@level+ = [0+] 24 [1+] 23 [2+] 17 [3+] 6 [4+] 6 [5+] 0
Hits/KSLOC@level+ = [0+] 32.4324 [1+] 31.0811 [2+] 22.973 [3+] 8.10811 [4+] 8.10811 [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.