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/axel-2.17.9/lib/ASN1_STRING_get0_data.c
Examining data/axel-2.17.9/lib/strlcat.c
Examining data/axel-2.17.9/lib/strlcpy.c
Examining data/axel-2.17.9/src/abuf.c
Examining data/axel-2.17.9/src/abuf.h
Examining data/axel-2.17.9/src/axel.c
Examining data/axel-2.17.9/src/axel.h
Examining data/axel-2.17.9/src/sleep.h
Examining data/axel-2.17.9/src/sleep.c
Examining data/axel-2.17.9/src/conf.c
Examining data/axel-2.17.9/src/conf.h
Examining data/axel-2.17.9/src/conn.c
Examining data/axel-2.17.9/src/conn.h
Examining data/axel-2.17.9/src/ftp.c
Examining data/axel-2.17.9/src/ftp.h
Examining data/axel-2.17.9/src/http.c
Examining data/axel-2.17.9/src/http.h
Examining data/axel-2.17.9/src/search.c
Examining data/axel-2.17.9/src/search.h
Examining data/axel-2.17.9/src/ssl.h
Examining data/axel-2.17.9/src/tcp.c
Examining data/axel-2.17.9/src/tcp.h
Examining data/axel-2.17.9/src/text.c
Examining data/axel-2.17.9/src/dn-match.c
Examining data/axel-2.17.9/src/ssl.c
Examining data/axel-2.17.9/src/ssl_verify.c
Examining data/axel-2.17.9/compat-android.h
Examining data/axel-2.17.9/compat-bsd.h
Examining data/axel-2.17.9/compat-ssl.h
FINAL RESULTS:
data/axel-2.17.9/src/abuf.c:69:16: [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.
size_t len = vsnprintf(abuf->p, abuf->len, fmt, ap);
data/axel-2.17.9/src/axel.c:59:23: [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, 3)))
data/axel-2.17.9/src/axel.c:101:12: [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.
int ret = access(stname, mode);
data/axel-2.17.9/src/axel.c:196:32: [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 (axel->conf->no_clobber && access(axel->filename, F_OK) == 0) {
data/axel-2.17.9/src/axel.c:857:2: [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(m->text, MAX_STRING, format, params);
data/axel-2.17.9/src/axel.c:873:2: [4] (format) vprintf:
If format strings can be influenced by an attacker, they can be exploited
(CWE-134). Use a constant for the format specification.
vprintf(format, params);
data/axel-2.17.9/src/conf.c:56:23: [4] (buffer) scanf:
The scanf() family's %s operation, without a limit specification, permits
buffer overflows (CWE-120, CWE-20). Specify a limit to %s, or use a
different input function.
__attribute__((format(scanf, 2, 3)))
data/axel-2.17.9/src/conf.c:65:8: [4] (buffer) vfscanf:
The scanf() family's %s operation, without a limit specification, permits
buffer overflows (CWE-120, CWE-20). Specify a limit to %s, or use a
different input function. If the scanf format is influenceable by an
attacker, it's exploitable.
ret = vfscanf(fp, format, params);
data/axel-2.17.9/src/ftp.c:200:3: [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(file, fn);
data/axel-2.17.9/src/ftp.c:226:3: [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(file, fn);
data/axel-2.17.9/src/ftp.c:287:2: [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(cmd, sizeof(cmd) - 3, format, params);
data/axel-2.17.9/src/ftp.h:63:23: [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, 3)))
data/axel-2.17.9/src/http.c:214:2: [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(s, sizeof(s) - 3, format, params);
data/axel-2.17.9/src/http.h:66:23: [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, 3)))
data/axel-2.17.9/src/text.c:347:7: [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(fn, F_OK) == 0 && access(statefn, F_OK) != 0) {
data/axel-2.17.9/src/text.c:347:32: [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(fn, F_OK) == 0 && access(statefn, F_OK) != 0) {
data/axel-2.17.9/src/text.c:351:7: [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(statefn, F_OK) == 0 && access(fn, F_OK) != 0) {
data/axel-2.17.9/src/text.c:351:37: [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(statefn, F_OK) == 0 && access(fn, F_OK) != 0) {
data/axel-2.17.9/src/text.c:364:20: [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.
int f_exists = !access(axel->filename, F_OK);
data/axel-2.17.9/src/text.c:365:21: [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.
int st_exists = !access(statefn, F_OK);
data/axel-2.17.9/src/conf.c:259:12: [3] (buffer) getenv:
Environment variables are untrustable input if they can be set by an
attacker. They can have any content and length, and the same variable can
be set more than once (CWE-807, CWE-20). Check environment variables
carefully before using them.
if ((s2 = getenv("http_proxy")) || (s2 = getenv("HTTP_PROXY")))
data/axel-2.17.9/src/conf.c:259:43: [3] (buffer) getenv:
Environment variables are untrustable input if they can be set by an
attacker. They can have any content and length, and the same variable can
be set more than once (CWE-807, CWE-20). Check environment variables
carefully before using them.
if ((s2 = getenv("http_proxy")) || (s2 = getenv("HTTP_PROXY")))
data/axel-2.17.9/src/conf.c:265:12: [3] (buffer) getenv:
Environment variables are untrustable input if they can be set by an
attacker. They can have any content and length, and the same variable can
be set more than once (CWE-807, CWE-20). Check environment variables
carefully before using them.
if ((s2 = getenv("HOME")) != NULL) {
data/axel-2.17.9/src/text.c:69:9: [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.
#define getopt_long(a, b, c, d, e) getopt(a, b, c)
data/axel-2.17.9/src/text.c:69:36: [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.
#define getopt_long(a, b, c, d, e) getopt(a, b, c)
data/axel-2.17.9/src/text.c:123:16: [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.
int option = getopt_long(argc, argv,
data/axel-2.17.9/src/abuf.c:94:3: [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(abuf->p + done, src + done, nread - done);
data/axel-2.17.9/src/axel.c:80:2: [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(buf, bname, bname_len);
data/axel-2.17.9/src/axel.c:81:2: [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(buf + bname_len, suffix, sizeof(suffix));
data/axel-2.17.9/src/axel.c:112:11: [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(stname, flags, mode);
data/axel-2.17.9/src/axel.c:345:22: [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 ((axel->outfd = open(axel->filename, O_WRONLY, 0666)) == -1) {
data/axel-2.17.9/src/axel.c:356:8: [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).
open(axel->filename, O_CREAT | O_WRONLY, 0666)) == -1) {
data/axel-2.17.9/src/axel.h:98:2: [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 text[MAX_STRING];
data/axel-2.17.9/src/axel.h:129:2: [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 filename[MAX_STRING];
data/axel-2.17.9/src/conf.c:97:2: [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 s[MAX_STRING], key[MAX_STRING];
data/axel-2.17.9/src/conf.c:99:7: [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(file, "r");
data/axel-2.17.9/src/conf.c:167:19: [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).
*((int *)dst) = atoi(value);
data/axel-2.17.9/src/conf.c:181:14: [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).
int num = atoi(value);
data/axel-2.17.9/src/conf.c:266:3: [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 s[MAX_STRING];
data/axel-2.17.9/src/conf.h:46:2: [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 default_filename[MAX_STRING];
data/axel-2.17.9/src/conf.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 http_proxy[MAX_STRING];
data/axel-2.17.9/src/conf.h:48:2: [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 no_proxy[MAX_STRING];
data/axel-2.17.9/src/conf.h:74:2: [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 add_header[MAX_ADD_HEADERS][MAX_STRING];
data/axel-2.17.9/src/conn.c:55:2: [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 url[MAX_STRING];
data/axel-2.17.9/src/conn.c:130:4: [2] (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). Risk is low because the source is a constant string.
strcpy(conn->user, "anonymous");
data/axel-2.17.9/src/conn.c:131:4: [2] (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). Risk is low because the source is a constant string.
strcpy(conn->pass, "mailto:axel@axel.project");
data/axel-2.17.9/src/conn.c:311:3: [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 s[MAX_STRING * 2];
data/axel-2.17.9/src/conn.c:381:2: [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 s[1005];
data/axel-2.17.9/src/conn.h:79:2: [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 host[MAX_STRING];
data/axel-2.17.9/src/conn.h:80:2: [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 dir[MAX_STRING];
data/axel-2.17.9/src/conn.h:81:2: [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 file[MAX_STRING];
data/axel-2.17.9/src/conn.h:82:2: [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 user[MAX_STRING];
data/axel-2.17.9/src/conn.h:83:2: [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 pass[MAX_STRING];
data/axel-2.17.9/src/conn.h:84:2: [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 output_filename[MAX_STRING];
data/axel-2.17.9/src/dn-match.c:58:8: [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.
const char ace_prefix[4] = "xn--";
data/axel-2.17.9/src/ftp.c:118:2: [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 *reply, *s, fn[MAX_STRING];
data/axel-2.17.9/src/ftp.c:238:2: [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 host[MAX_STRING];
data/axel-2.17.9/src/ftp.c:284:2: [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 cmd[MAX_STRING];
data/axel-2.17.9/src/ftp.h:48:2: [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 cwd[MAX_STRING];
data/axel-2.17.9/src/http.c:73:8: [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.
const char base64_encode[64] =
data/axel-2.17.9/src/http.c:210:2: [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 s[MAX_STRING];
data/axel-2.17.9/src/http.c:297:2: [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(conn->request->p, conn->headers->p, reslen);
data/axel-2.17.9/src/http.c:406:13: [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.
encode_byte(char dst[3], char n)
data/axel-2.17.9/src/http.c:436:2: [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 t[MAX_STRING];
data/axel-2.17.9/src/http.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 host[MAX_STRING];
data/axel-2.17.9/src/http.h:48:2: [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 auth[MAX_STRING];
data/axel-2.17.9/src/http.h:53:2: [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 proxy_auth[MAX_STRING];
data/axel-2.17.9/src/search.h:43:2: [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 url[MAX_STRING];
data/axel-2.17.9/src/tcp.c:66:2: [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[16]; /* Max buff size needed for inet_pton() */
data/axel-2.17.9/src/tcp.c:84:2: [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 portstr[10];
data/axel-2.17.9/src/text.c:98:2: [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 fn[MAX_STRING];
data/axel-2.17.9/src/text.c:208:8: [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).
if (open("/dev/null", O_WRONLY) != 1) {
data/axel-2.17.9/src/text.c:340:5: [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(fn + fnlen + 1, axel->filename,
data/axel-2.17.9/src/text.c:345:3: [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 statefn[MAX_STRING + 3];
data/axel-2.17.9/src/text.c:360:4: [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 statefn[MAX_STRING + 3];
data/axel-2.17.9/src/text.c:433:2: [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 hsize[MAX_STRING / 2], htime[MAX_STRING / 2];
data/axel-2.17.9/lib/strlcat.c:45:17: [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).
return(dlen + strlen(src));
data/axel-2.17.9/src/axel.c:74:27: [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).
const size_t bname_len = strlen(bname);
data/axel-2.17.9/src/axel.c:284:11: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
nread = read(fd, &axel->conf->num_connections,
data/axel-2.17.9/src/axel.c:326:11: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
nread = read(fd, &axel->bytes_done, sizeof(axel->bytes_done));
data/axel-2.17.9/src/axel.c:329:12: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
nread = read(fd, &axel->conn[i].currentbyte,
data/axel-2.17.9/src/axel.c:333:13: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
nread = read(fd, &axel->conn[i].lastbyte,
data/axel-2.17.9/src/conf.c:115:8: [1] (buffer) fgetc:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
if ((fgetc(fp) != '\n') && !feof(fp)) { /* Skip newline */
data/axel-2.17.9/src/conf.c:320:4: [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).
s[strlen(s) + 1] = 0;
data/axel-2.17.9/src/conn.c:93:3: [1] (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). Risk is low because the source is a constant character.
strcpy(conn->dir, "/");
data/axel-2.17.9/src/conn.c:111:3: [1] (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). Risk is low because the source is a constant character.
strcpy(conn->dir, "/");
data/axel-2.17.9/src/conn.c:403:3: [1] (buffer) sscanf:
It's unclear if the %s limit in the format string is small enough
(CWE-120). Check that the limit is sufficiently small, or use a different
input function.
sscanf(t, "%1000s", s);
data/axel-2.17.9/src/dn-match.c:84:25: [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 (pat_len == right - strlen(pat + right))
data/axel-2.17.9/src/ftp.c:198:3: [1] (buffer) sscanf:
It's unclear if the %s limit in the format string is small enough
(CWE-120). Check that the limit is sufficiently small, or use a different
input function.
sscanf(s, "%*s %*i %*s %*s %*i %*s %*i %*s %100s", fn);
data/axel-2.17.9/src/ftp.c:216:7: [1] (buffer) sscanf:
It's unclear if the %s limit in the format string is small enough
(CWE-120). Check that the limit is sufficiently small, or use a different
input function.
i = sscanf(s, "%*s %*i %*s %*s %lld %*s %*i %*s %100s", &size,
data/axel-2.17.9/src/ftp.c:219:8: [1] (buffer) sscanf:
It's unclear if the %s limit in the format string is small enough
(CWE-120). Check that the limit is sufficiently small, or use a different
input function.
i = sscanf(s, "%*s %*i %lld %*i %*s %*i %*i %100s",
data/axel-2.17.9/src/ftp.c:295:33: [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 (tcp_write(&conn->tcp, cmd, strlen(cmd)) != (ssize_t)strlen(cmd)) {
data/axel-2.17.9/src/ftp.c:295:58: [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 (tcp_write(&conn->tcp, cmd, strlen(cmd)) != (ssize_t)strlen(cmd)) {
data/axel-2.17.9/src/ftp.c:366:33: [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).
realloc(conn->message, max(strlen(conn->message) + 1, MAX_STRING));
data/axel-2.17.9/src/http.c:235:24: [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).
const size_t reqlen = strlen(conn->request->p);
data/axel-2.17.9/src/http.c:307:16: [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 hlen = strlen(header);
data/axel-2.17.9/src/tcp.c:204:10: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
return read(tcp->fd, buffer, size);
data/axel-2.17.9/src/text.c:258:7: [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(s) > MAX_STRING) {
data/axel-2.17.9/src/text.c:331:20: [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 fnlen = strlen(fn);
data/axel-2.17.9/src/text.c:332:24: [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 axelfnlen = strlen(axel->filename);
data/axel-2.17.9/src/text.c:358:24: [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).
s = axel->filename + strlen(axel->filename);
ANALYSIS SUMMARY:
Hits = 101
Lines analyzed = 5299 in approximately 0.21 seconds (25474 lines/second)
Physical Source Lines of Code (SLOC) = 3477
Hits@level = [0] 113 [1] 25 [2] 50 [3] 6 [4] 20 [5] 0
Hits@level+ = [0+] 214 [1+] 101 [2+] 76 [3+] 26 [4+] 20 [5+] 0
Hits/KSLOC@level+ = [0+] 61.5473 [1+] 29.048 [2+] 21.8579 [3+] 7.47771 [4+] 5.75209 [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.