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/ruby-cbor-0.5.9.6/ext/cbor/unpacker_class.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/rbinit.c
Examining data/ruby-cbor-0.5.9.6/ext/cbor/packer_class.c
Examining data/ruby-cbor-0.5.9.6/ext/cbor/sysdep_endian.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/core_ext.c
Examining data/ruby-cbor-0.5.9.6/ext/cbor/core_ext.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/packer.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/compat.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/cbor.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/unpacker.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/sysdep_types.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/unpacker.c
Examining data/ruby-cbor-0.5.9.6/ext/cbor/unpacker_class.c
Examining data/ruby-cbor-0.5.9.6/ext/cbor/buffer_class.c
Examining data/ruby-cbor-0.5.9.6/ext/cbor/packer.c
Examining data/ruby-cbor-0.5.9.6/ext/cbor/packer_class.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/buffer_class.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/renamer.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/rmem.c
Examining data/ruby-cbor-0.5.9.6/ext/cbor/buffer.c
Examining data/ruby-cbor-0.5.9.6/ext/cbor/buffer.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/sysdep.h
Examining data/ruby-cbor-0.5.9.6/ext/cbor/rmem.h
FINAL RESULTS:
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.c:220:17: [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(buffer, b->read_buffer, length);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.c:227:13: [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(buffer, b->read_buffer, avail);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.c:436:17: [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(b->tail.last, data, length);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.c:446:9: [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(b->tail.last, data, tail_avail);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.c:467:13: [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(mem, data, length);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.c:490:13: [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(last, data, length);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.c:546:5: [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(buffer, b->read_buffer, avail);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.c:554:9: [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(buffer, c->first, avail);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.h:95:5: [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 buffer[8];
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.h:216:5: [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(b->tail.last, data, length);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.h:246:9: [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(b->tail.last, data, length);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.h:374:5: [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(buffer, b->read_buffer, length);
data/ruby-cbor-0.5.9.6/ext/cbor/buffer.h:461:7: [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(tmp, b->read_buffer, length);
data/ruby-cbor-0.5.9.6/ext/cbor/packer.h:145:9: [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 mem[4];
data/ruby-cbor-0.5.9.6/ext/cbor/packer.h:180:9: [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 mem[8];
data/ruby-cbor-0.5.9.6/ext/cbor/packer.h:263:5: [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 buf[len]; /* XXX */
data/ruby-cbor-0.5.9.6/ext/cbor/unpacker.c:546:11: [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 msdig_str[SIZEOF_BDIGITS];
data/ruby-cbor-0.5.9.6/ext/cbor/unpacker.c:550:9: [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(u.msdig_str + missbytes, sp, SIZEOF_BDIGITS - missbytes);
data/ruby-cbor-0.5.9.6/ext/cbor/unpacker.c:554:11: [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(u.msdig_str, sp, SIZEOF_BDIGITS);
data/ruby-cbor-0.5.9.6/ext/cbor/unpacker.c:565:11: [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(p, "%02x", *sp++ & 0xFF);
data/ruby-cbor-0.5.9.6/ext/cbor/packer.h:225:25: [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).
unsigned long len = strlen(name);
ANALYSIS SUMMARY:
Hits = 21
Lines analyzed = 4997 in approximately 0.14 seconds (35759 lines/second)
Physical Source Lines of Code (SLOC) = 3435
Hits@level = [0] 1 [1] 1 [2] 20 [3] 0 [4] 0 [5] 0
Hits@level+ = [0+] 22 [1+] 21 [2+] 20 [3+] 0 [4+] 0 [5+] 0
Hits/KSLOC@level+ = [0+] 6.40466 [1+] 6.11354 [2+] 5.82242 [3+] 0 [4+] 0 [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.