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/radvd-2.18/privsep-linux.c
Examining data/radvd-2.18/netlink.c
Examining data/radvd-2.18/log.c
Examining data/radvd-2.18/device-common.c
Examining data/radvd-2.18/send.c
Examining data/radvd-2.18/recv.c
Examining data/radvd-2.18/socket.c
Examining data/radvd-2.18/process.c
Examining data/radvd-2.18/util.c
Examining data/radvd-2.18/device-bsd44.c
Examining data/radvd-2.18/radvdump.c
Examining data/radvd-2.18/netlink.h
Examining data/radvd-2.18/includes.h
Examining data/radvd-2.18/radvd.c
Examining data/radvd-2.18/test/send.c
Examining data/radvd-2.18/test/print_safe_buffer.c
Examining data/radvd-2.18/test/check.c
Examining data/radvd-2.18/test/util.c
Examining data/radvd-2.18/test/print_safe_buffer.h
Examining data/radvd-2.18/device-linux.c
Examining data/radvd-2.18/interface.c
Examining data/radvd-2.18/pathnames.h
Examining data/radvd-2.18/radvd.h
Examining data/radvd-2.18/defaults.h
Examining data/radvd-2.18/timer.c
Examining data/radvd-2.18/log.h
FINAL RESULTS:
data/radvd-2.18/device-linux.c:194:2: [4] (format) snprintf:
If format strings can be influenced by an attacker, they can be exploited,
and note that sprintf variations do not always \0-terminate (CWE-134). Use
a constant for the format specification.
snprintf(proc_path, sizeof(PROC_SYS_IP6_LINKMTU) + IFNAMSIZ, PROC_SYS_IP6_LINKMTU, iface);
data/radvd-2.18/device-linux.c:228:2: [4] (format) snprintf:
If format strings can be influenced by an attacker, they can be exploited,
and note that sprintf variations do not always \0-terminate (CWE-134). Use
a constant for the format specification.
snprintf(path, sizeof(PROC_SYS_IP6_IFACE_FORWARDING) + IFNAMSIZ, PROC_SYS_IP6_IFACE_FORWARDING, iface);
data/radvd-2.18/log.c:19:23: [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.
__attribute__((format(printf, 2, 0))) static int vlog(int prio, char const *format, va_list ap);
data/radvd-2.18/log.c:70:23: [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.
__attribute__((format(printf, 2, 0))) static int vlog(int prio, char const *format, va_list ap)
data/radvd-2.18/log.c:76:2: [4] (format) vsnprintf:
If format strings can be influenced by an attacker, they can be exploited,
and note that sprintf variations do not always \0-terminate (CWE-134). Use
a constant for the format specification.
vsnprintf(buff, sizeof(buff), format, ap);
data/radvd-2.18/log.h:28:57: [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.
void flog(int, char const *, ...) __attribute__((format(printf, 2, 3)));
data/radvd-2.18/log.h:29:62: [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.
void dlog(int, int, char const *, ...) __attribute__((format(printf, 3, 4)));
data/radvd-2.18/privsep-linux.c:184:6: [4] (race) access:
This usually indicates a security flaw. If an attacker can change anything
along the path between the call to access() and the file's actual use
(e.g., by moving files), the attacker can exploit the race condition
(CWE-362/CWE-367!). Set up the correct permissions (e.g., using setuid())
and try to open the file directly.
if (access(spath, F_OK) != 0)
data/radvd-2.18/radvd.h:328:62: [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.
char *strdupf(char const *format, ...) __attribute__((format(printf, 1, 2)));
data/radvd-2.18/util.c:155:23: [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.
__attribute__((format(printf, 1, 2))) char *strdupf(char const *format, ...)
data/radvd-2.18/radvd.c:194:2: [3] (random) srand:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
srand((unsigned int)time(NULL));
data/radvd-2.18/radvd.c:203:14: [3] (buffer) getopt_long:
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 ((c = getopt_long(argc, argv, OPTIONS_STR, prog_opt, &opt_idx)) > 0)
data/radvd-2.18/radvd.c:205:14: [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 ((c = getopt(argc, argv, OPTIONS_STR)) > 0)
data/radvd-2.18/radvd.c:277:7: [3] (misc) chroot:
chroot can be very helpful, but is hard to use correctly (CWE-250, CWE-22).
Make sure the program immediately chdir("/"), closes file descriptors, and
drops root privileges, and that all necessary files (and no more!) are in
the new root.
if (chroot(chrootdir) == -1) {
data/radvd-2.18/radvdump.c:45:14: [3] (buffer) getopt_long:
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 ((c = getopt_long(argc, argv, "d:fehv", prog_opt, &opt_idx)) > 0)
data/radvd-2.18/radvdump.c:47:14: [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 ((c = getopt(argc, argv, "d:fehv")) > 0)
data/radvd-2.18/test/check.c:67:14: [3] (buffer) getopt_long:
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 ((c = getopt_long(argc, argv, OPTIONS_STR, prog_opt, &opt_idx)) > 0)
data/radvd-2.18/test/check.c:69:14: [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 ((c = getopt(argc, argv, OPTIONS_STR)) > 0)
data/radvd-2.18/test/check.c:123:2: [3] (random) srand:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
srand((unsigned int)time(NULL));
data/radvd-2.18/device-bsd44.c:69:3: [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(iface->sllao.if_hwaddr, LLADDR(dl), dl->sdl_alen);
data/radvd-2.18/device-bsd44.c:95:4: [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 zero[sizeof(iface->props.if_addr)];
data/radvd-2.18/device-common.c:137:5: [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(if_addr, &(a6->sin6_addr), sizeof(struct in6_addr));
data/radvd-2.18/device-common.c:169:3: [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 addr_str[INET6_ADDRSTRLEN];
data/radvd-2.18/device-linux.c:79:3: [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 hwaddr[3 * 6];
data/radvd-2.18/device-linux.c:80:3: [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.
sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x", (unsigned char)ifr.ifr_hwaddr.sa_data[0],
data/radvd-2.18/device-linux.c:142:3: [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(iface->sllao.if_hwaddr, ifr.ifr_hwaddr.sa_data, if_hwaddr_len_bytes);
data/radvd-2.18/device-linux.c:144:3: [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 zero[sizeof(iface->props.if_addr)];
data/radvd-2.18/device-linux.c:192:2: [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 proc_path[sizeof(PROC_SYS_IP6_LINKMTU) + IFNAMSIZ];
data/radvd-2.18/device-linux.c:196:7: [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(proc_path, "r");
data/radvd-2.18/device-linux.c:226:2: [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 path[sizeof(PROC_SYS_IP6_IFACE_FORWARDING) + IFNAMSIZ];
data/radvd-2.18/device-linux.c:230:7: [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(path, "r");
data/radvd-2.18/device-linux.c:253:7: [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(PROC_SYS_IP6_FORWARDING, "r");
data/radvd-2.18/log.c:56:22: [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).
if ((log_file_fd = fopen(log_file, "a")) == NULL) {
data/radvd-2.18/log.c:72:2: [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 tstamp[64], buff[1024];
data/radvd-2.18/netlink.c:38:2: [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/radvd-2.18/netlink.c:49:2: [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 answer[32768];
data/radvd-2.18/netlink.c:99:2: [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/radvd-2.18/netlink.c:109:3: [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 ifnamebuf[IF_NAMESIZE];
data/radvd-2.18/privsep-linux.c:41:2: [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 iface[IFNAMSIZ];
data/radvd-2.18/privsep-linux.c:187:7: [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(spath, "w");
data/radvd-2.18/process.c:27:2: [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 if_namebuf[IF_NAMESIZE] = {""};
data/radvd-2.18/process.c:34:2: [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 addr_str[INET6_ADDRSTRLEN];
data/radvd-2.18/process.c:211:2: [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 addr_str[INET6_ADDRSTRLEN];
data/radvd-2.18/process.c:287:5: [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 prefix_str[INET6_ADDRSTRLEN];
data/radvd-2.18/process.c:324:4: [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 rdnss_str[INET6_ADDRSTRLEN];
data/radvd-2.18/process.c:373:5: [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 suffix[256] = {""};
data/radvd-2.18/radvd.c:148:7: [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).
if (open("/dev/null", O_RDONLY) == -1) {
data/radvd-2.18/radvd.c:152:7: [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).
if (open("/dev/null", O_WRONLY) == -1) {
data/radvd-2.18/radvd.c:156:7: [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).
if (open("/dev/null", O_RDWR) == -1) {
data/radvd-2.18/radvd.c:213:19: [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).
set_debuglevel(atoi(optarg));
data/radvd-2.18/radvd.c:216:15: [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).
facility = atoi(optarg);
data/radvd-2.18/radvd.c:542:14: [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 msg[MSG_SIZE_RECV];
data/radvd-2.18/radvd.c:543:14: [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 chdr[CMSG_SPACE(sizeof(struct in6_pktinfo)) + CMSG_SPACE(sizeof(int))];
data/radvd-2.18/radvd.c:602:14: [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).
int pidfd = open(daemon_pid_file_ident, O_SYNC | O_CREAT | O_RDWR, 0644);
data/radvd-2.18/radvd.c:632:2: [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 pid_str[20] = {""};
data/radvd-2.18/radvd.c:633:2: [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.
sprintf(pid_str, "%d", pid);
data/radvd-2.18/radvd.c:656:14: [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).
int dirfd = open(dirstr, O_RDONLY);
data/radvd-2.18/radvd.c:672:18: [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).
FILE *pidfile = fopen(daemon_pid_file_ident, "r");
data/radvd-2.18/radvd.c:830:4: [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 pfx_str[INET6_ADDRSTRLEN];
data/radvd-2.18/radvd.c:861:13: [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).
FILE *fp = fopen(conf_file, "r");
data/radvd-2.18/radvd.h:73:3: [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 name[IFNAMSIZ]; /* interface name */
data/radvd-2.18/radvd.h:157:2: [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 if6to4[IFNAMSIZ];
data/radvd-2.18/radvd.h:160:2: [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 if6[IFNAMSIZ];
data/radvd-2.18/radvdump.c:52:19: [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).
set_debuglevel(atoi(optarg));
data/radvd-2.18/radvdump.c:87:12: [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 msg[MSG_SIZE_RECV];
data/radvd-2.18/radvdump.c:91:12: [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 chdr[CMSG_SPACE(sizeof(struct in6_pktinfo)) + CMSG_SPACE(sizeof(int))];
data/radvd-2.18/radvdump.c:139:2: [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 addr_str[INET6_ADDRSTRLEN];
data/radvd-2.18/radvdump.c:143:2: [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 if_name[IFNAMSIZ] = {""};
data/radvd-2.18/radvdump.c:276:3: [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 prefix_str[INET6_ADDRSTRLEN];
data/radvd-2.18/radvdump.c:349:6: [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(&addr, &rinfo->nd_opt_ri_prefix, (rinfo->nd_opt_ri_len - 1) * 8);
data/radvd-2.18/radvdump.c:401:4: [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 suffix[256] = {""};
data/radvd-2.18/recv.c:77:2: [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 if_namebuf[IF_NAMESIZE] = {""};
data/radvd-2.18/send.c:115:3: [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 address_text[INET6_ADDRSTRLEN] = {""};
data/radvd-2.18/send.c:169:7: [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 pfx_str[INET6_ADDRSTRLEN];
data/radvd-2.18/send.c:242:2: [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(&pinfo.nd_opt_pi_prefix, &prefix->Prefix, sizeof(struct in6_addr));
data/radvd-2.18/send.c:257:3: [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(xprefix.Prefix.s6_addr + 2, &dst, sizeof(dst));
data/radvd-2.18/send.c:261:3: [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 pfx_str[INET6_ADDRSTRLEN];
data/radvd-2.18/send.c:306:3: [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 pfx_str[INET6_ADDRSTRLEN];
data/radvd-2.18/send.c:439:3: [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(&rinfo.nd_opt_ri_prefix, &route->Prefix, sizeof(struct in6_addr));
data/radvd-2.18/send.c:472:3: [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(&rdnssinfo.nd_opt_rdnssi_addr1, &rdnss->AdvRDNSSAddr1, sizeof(struct in6_addr));
data/radvd-2.18/send.c:473:3: [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(&rdnssinfo.nd_opt_rdnssi_addr2, &rdnss->AdvRDNSSAddr2, sizeof(struct in6_addr));
data/radvd-2.18/send.c:474:3: [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(&rdnssinfo.nd_opt_rdnssi_addr3, &rdnss->AdvRDNSSAddr3, sizeof(struct in6_addr));
data/radvd-2.18/send.c:725:2: [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 dest_text[INET6_ADDRSTRLEN] = {""};
data/radvd-2.18/send.c:726:2: [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 src_text[INET6_ADDRSTRLEN] = {""};
data/radvd-2.18/send.c:829:2: [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(&addr.sin6_addr, dest, sizeof(struct in6_addr));
data/radvd-2.18/send.c:835:2: [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 __attribute__((aligned(8))) chdr[CMSG_SPACE(sizeof(struct in6_pktinfo))];
data/radvd-2.18/send.c:845:2: [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(&pkt_info->ipi6_addr, props->if_addr_rasrc, sizeof(struct in6_addr));
data/radvd-2.18/test/print_safe_buffer.c:10:2: [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/radvd-2.18/test/send.c:44:2: [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/radvd-2.18/test/send.c:73:2: [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/radvd-2.18/test/send.c:107:2: [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/radvd-2.18/test/send.c:138:2: [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/radvd-2.18/test/send.c:172:2: [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/radvd-2.18/test/send.c:202:2: [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/radvd-2.18/test/send.c:236:2: [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/radvd-2.18/test/send.c:262:2: [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/radvd-2.18/test/send.c:307:2: [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/radvd-2.18/test/send.c:331:2: [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/radvd-2.18/test/util.c:111:2: [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 buffer[INET6_ADDRSTRLEN] = {""};
data/radvd-2.18/test/util.c:124:2: [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 buffer[18] = {""};
data/radvd-2.18/test/util.c:147:11: [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).
int fd = open("/dev/zero", O_RDONLY);
data/radvd-2.18/test/util.c:151:2: [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 buffer[10000];
data/radvd-2.18/test/util.c:167:11: [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).
int fd = open("/dev/null", O_WRONLY);
data/radvd-2.18/test/util.c:171:2: [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 buffer[10000];
data/radvd-2.18/util.c:84:3: [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(&sb->buffer[sb->used], m, count);
data/radvd-2.18/device-bsd44.c:32:2: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(ifr.ifr_name, iface->props.name, IFNAMSIZ - 1);
data/radvd-2.18/device-common.c:25:2: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(ifr.ifr_name, iface->props.name, IFNAMSIZ - 1);
data/radvd-2.18/device-common.c:73:2: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(ifr.ifr_name, ifn, IFNAMSIZ - 1);
data/radvd-2.18/device-linux.c:42:2: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(ifr.ifr_name, iface->props.name, IFNAMSIZ - 1);
data/radvd-2.18/privsep-linux.c:132:2: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(cmd.iface, iface, sizeof(cmd.iface));
data/radvd-2.18/privsep-linux.c:144:2: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(cmd.iface, iface, sizeof(cmd.iface));
data/radvd-2.18/privsep-linux.c:155:2: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(cmd.iface, iface, sizeof(cmd.iface));
data/radvd-2.18/privsep-linux.c:166:2: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120).
strncpy(cmd.iface, iface, sizeof(cmd.iface));
data/radvd-2.18/process.c:400:27: [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 ((sizeof(suffix) - strlen(suffix)) < (label_len + 2) || label_len >= (INT_MAX - 1) ||
data/radvd-2.18/process.c:409:6: [1] (buffer) strcat:
Does not check for buffer overflows when concatenating to destination
[MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
snprintf (warning: strncat is easily misused). Risk is low because the
source is a constant character.
strcat(suffix, ".");
data/radvd-2.18/process.c:410:5: [1] (buffer) strncat:
Easily used incorrectly (e.g., incorrectly computing the correct maximum
size to add) [MS-banned] (CWE-120). Consider strcat_s, strlcat, snprintf,
or automatically resizing strings.
strncat(suffix, (char *)&dnsslinfo->nd_opt_dnssli_suffixes[offset], label_len);
data/radvd-2.18/radvd.c:135:3: [1] (access) umask:
Ensure that umask is given most restrictive possible setting (e.g., 066 or
077) (CWE-732).
umask(0);
data/radvd-2.18/radvd.c:164:16: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
ssize_t rc = read(pipe_ends[0], &msg, sizeof(msg));
data/radvd-2.18/radvd.c:635:15: [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).
size_t len = strlen(pid_str);
data/radvd-2.18/radvd.c:641:8: [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).
len = strlen(newline);
data/radvd-2.18/radvdump.c:419:27: [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 ((sizeof(suffix) - strlen(suffix)) < (label_len + 2)) {
data/radvd-2.18/radvdump.c:425:6: [1] (buffer) strcat:
Does not check for buffer overflows when concatenating to destination
[MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
snprintf (warning: strncat is easily misused). Risk is low because the
source is a constant character.
strcat(suffix, ".");
data/radvd-2.18/radvdump.c:426:5: [1] (buffer) strncat:
Easily used incorrectly (e.g., incorrectly computing the correct maximum
size to add) [MS-banned] (CWE-120). Consider strcat_s, strlcat, snprintf,
or automatically resizing strings.
strncat(suffix, (char *)&dnssl_info->nd_opt_dnssli_suffixes[offset], label_len);
data/radvd-2.18/send.c:390:32: [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).
label_len = (unsigned char)strlen(label);
data/radvd-2.18/util.c:181:3: [1] (buffer) strncpy:
Easily used incorrectly; doesn't always \0-terminate or check for invalid
pointers [MS-banned] (CWE-120). Risk is low because the source is a
constant string.
strncpy(str, "[invalid address]", str_size);
data/radvd-2.18/util.c:217:11: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
int r = read(fd, buf, count);
ANALYSIS SUMMARY:
Hits = 126
Lines analyzed = 6877 in approximately 0.19 seconds (35428 lines/second)
Physical Source Lines of Code (SLOC) = 5031
Hits@level = [0] 97 [1] 21 [2] 86 [3] 9 [4] 10 [5] 0
Hits@level+ = [0+] 223 [1+] 126 [2+] 105 [3+] 19 [4+] 10 [5+] 0
Hits/KSLOC@level+ = [0+] 44.3252 [1+] 25.0447 [2+] 20.8706 [3+] 3.77659 [4+] 1.98768 [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.