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/lzip-1.21/arg_parser.cc
Examining data/lzip-1.21/encoder_base.h
Examining data/lzip-1.21/fast_encoder.h
Examining data/lzip-1.21/main.cc
Examining data/lzip-1.21/lzip_index.h
Examining data/lzip-1.21/lzip.h
Examining data/lzip-1.21/decoder.cc
Examining data/lzip-1.21/encoder.cc
Examining data/lzip-1.21/encoder.h
Examining data/lzip-1.21/fast_encoder.cc
Examining data/lzip-1.21/decoder.h
Examining data/lzip-1.21/list.cc
Examining data/lzip-1.21/lzip_index.cc
Examining data/lzip-1.21/encoder_base.cc
Examining data/lzip-1.21/arg_parser.h
FINAL RESULTS:
data/lzip-1.21/decoder.h:69:12: [2] (buffer) memcpy:
Does not check for buffer overflows when copying to destination (CWE-120).
Make sure destination can always hold the source data.
std::memcpy( outbuf + sz, buffer + pos, rd );
data/lzip-1.21/decoder.h:259:14: [2] (buffer) memcpy:
Does not check for buffer overflows when copying to destination (CWE-120).
Make sure destination can always hold the source data.
std::memcpy( buffer + lpos, buffer + i, len );
data/lzip-1.21/lzip.h:214:27: [2] (buffer) memcpy:
Does not check for buffer overflows when copying to destination (CWE-120).
Make sure destination can always hold the source data.
void set_magic() { std::memcpy( data, lzip_magic, 4 ); data[4] = 1; }
data/lzip-1.21/lzip_index.cc:54:3: [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 buf[80];
data/lzip-1.21/lzip_index.cc:117:10: [2] (buffer) memcpy:
Does not check for buffer overflows when copying to destination (CWE-120).
Make sure destination can always hold the source data.
std::memcpy( buffer + rd_size, buffer, buffer_size - rd_size );
data/lzip-1.21/main.cc:184:10: [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.
static char buf[80];
data/lzip-1.21/main.cc:194:10: [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.
static char buf[bufsize];
data/lzip-1.21/main.cc:195:9: [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.
const char * const prefix[8] =
data/lzip-1.21/main.cc:335:14: [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 infd = open( name, O_RDONLY | O_BINARY );
data/lzip-1.21/main.cc:385:11: [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).
outfd = open( output_filename.c_str(), flags, outfd_mode );
data/lzip-1.21/arg_parser.cc:40:16: [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).
if( std::strlen( options[i].name ) == len ) // Exact match found
data/lzip-1.21/decoder.cc:43:19: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
const int n = read( fd, buf + sz, size - sz );
data/lzip-1.21/lzip.h:132:42: [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 unsigned stdin_name_len = std::strlen( stdin_name );
data/lzip-1.21/main.cc:219:53: [1] (obsolete) ulimit:
This C routine is considered obsolete (as opposed to the shell command by
the same name, which is NOT obsolete) (CWE-676). Use getrlimit(2),
setrlimit(2), and sysconf(3) instead.
const unsigned long long ulimit )
data/lzip-1.21/main.cc:253:11: [1] (obsolete) ulimit:
This C routine is considered obsolete (as opposed to the shell command by
the same name, which is NOT obsolete) (CWE-676). Use getrlimit(2),
setrlimit(2), and sysconf(3) instead.
if( ulimit / factor >= result ) result *= factor;
data/lzip-1.21/main.cc:257:47: [1] (obsolete) ulimit:
This C routine is considered obsolete (as opposed to the shell command by
the same name, which is NOT obsolete) (CWE-676). Use getrlimit(2),
setrlimit(2), and sysconf(3) instead.
if( !errno && ( result < llimit || result > ulimit ) ) errno = ERANGE;
data/lzip-1.21/main.cc:488:33: [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).
const unsigned ext_len = std::strlen( known_extensions[0].from );
ANALYSIS SUMMARY:
Hits = 17
Lines analyzed = 4462 in approximately 0.14 seconds (32430 lines/second)
Physical Source Lines of Code (SLOC) = 3629
Hits@level = [0] 39 [1] 7 [2] 10 [3] 0 [4] 0 [5] 0
Hits@level+ = [0+] 56 [1+] 17 [2+] 10 [3+] 0 [4+] 0 [5+] 0
Hits/KSLOC@level+ = [0+] 15.4312 [1+] 4.68449 [2+] 2.75558 [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.