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/pyasn-1.6.1/pyasn/_radix/radix.c
Examining data/pyasn-1.6.1/pyasn/_radix/radix.h
Examining data/pyasn-1.6.1/pyasn/pyasn_radix.c

FINAL RESULTS:

data/pyasn-1.6.1/pyasn/_radix/radix.h:67:9:  [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.
#define snprintf _snprintf
data/pyasn-1.6.1/pyasn/_radix/radix.h:67:18:  [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.
#define snprintf _snprintf
data/pyasn-1.6.1/pyasn/pyasn_radix.c:118:5:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
    sprintf(buf, "%s/%d", addr, rn->prefix->bitlen);
data/pyasn-1.6.1/pyasn/_radix/radix.c:118:17:  [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(&prefix->add.sin6, dest, 16);
data/pyasn-1.6.1/pyasn/_radix/radix.c:126:17:  [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(&prefix->add.sin, dest, 4);
data/pyasn-1.6.1/pyasn/_radix/radix.c:565:18:  [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 buf[sizeof(struct in6_addr)];         
data/pyasn-1.6.1/pyasn/pyasn_radix.c:113:5:  [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 addr[INET6_ADDRSTRLEN], buf[128];
data/pyasn-1.6.1/pyasn/pyasn_radix.c:583:5:  [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(&prefix->add.sin, addr, 4);
data/pyasn-1.6.1/pyasn/pyasn_radix.c:636:5:  [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 err_msg[512];
data/pyasn-1.6.1/pyasn/pyasn_radix.c:656:2:  [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[512], *p1, *p2;    
data/pyasn-1.6.1/pyasn/pyasn_radix.c:658:21:  [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 ((ccfd = fopen(from_file, "rt" )) == NULL) {
data/pyasn-1.6.1/pyasn/pyasn_radix.c:673:51:  [2] (integer) atol:
  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).
            if (!add_pyobject_to_radix_tree(self, atol(p1), atoi(p2), buf))
data/pyasn-1.6.1/pyasn/pyasn_radix.c:673:61:  [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).
            if (!add_pyobject_to_radix_tree(self, atol(p1), atoi(p2), buf))
data/pyasn-1.6.1/pyasn/pyasn_radix.c:684:9:  [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 buf[512], *p1, *p2;
data/pyasn-1.6.1/pyasn/pyasn_radix.c:706:51:  [2] (integer) atol:
  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).
            if (!add_pyobject_to_radix_tree(self, atol(p1), atoi(p2), buf))
data/pyasn-1.6.1/pyasn/pyasn_radix.c:706:61:  [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).
            if (!add_pyobject_to_radix_tree(self, atol(p1), atoi(p2), buf))
data/pyasn-1.6.1/pyasn/pyasn_radix.c:717:5:  [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(err_msg, "Error while parsing/adding IPASN database (record: %d)!", (int)(record+1));

ANALYSIS SUMMARY:

Hits = 17
Lines analyzed = 1885 in approximately 0.09 seconds (21642 lines/second)
Physical Source Lines of Code (SLOC) = 1318
Hits@level = [0]   1 [1]   0 [2]  14 [3]   0 [4]   3 [5]   0
Hits@level+ = [0+]  18 [1+]  17 [2+]  17 [3+]   3 [4+]   3 [5+]   0
Hits/KSLOC@level+ = [0+] 13.6571 [1+] 12.8983 [2+] 12.8983 [3+] 2.27618 [4+] 2.27618 [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.