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/woff-tools-2009.10.04/woff2sfnt.c
Examining data/woff-tools-2009.10.04/sfnt2woff.c
Examining data/woff-tools-2009.10.04/woff-private.h
Examining data/woff-tools-2009.10.04/woff.h
Examining data/woff-tools-2009.10.04/woff.c
FINAL RESULTS:
data/woff-tools-2009.10.04/sfnt2woff.c:78:5: [4] (buffer) sprintf:
Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
vsnprintf.
sprintf(buf, "unable to open file %s", name);
data/woff-tools-2009.10.04/sfnt2woff.c:176:3: [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(outName, argv[0]);
data/woff-tools-2009.10.04/woff.c:1164:7: [4] (format) fprintf:
If format strings can be influenced by an attacker, they can be exploited
(CWE-134). Use a constant for the format specification.
fprintf(f, template, prefix, "unrecognized sfnt version");
data/woff-tools-2009.10.04/woff.c:1167:7: [4] (format) fprintf:
If format strings can be influenced by an attacker, they can be exploited
(CWE-134). Use a constant for the format specification.
fprintf(f, template, prefix, "checksum mismatch (corrected)");
data/woff-tools-2009.10.04/woff.c:1170:7: [4] (format) fprintf:
If format strings can be influenced by an attacker, they can be exploited
(CWE-134). Use a constant for the format specification.
fprintf(f, template, prefix, "misaligned font table");
data/woff-tools-2009.10.04/woff.c:1173:7: [4] (format) fprintf:
If format strings can be influenced by an attacker, they can be exploited
(CWE-134). Use a constant for the format specification.
fprintf(f, template, prefix, "extraneous input data discarded");
data/woff-tools-2009.10.04/woff.c:1176:7: [4] (format) fprintf:
If format strings can be influenced by an attacker, they can be exploited
(CWE-134). Use a constant for the format specification.
fprintf(f, template, prefix, "final table not correctly padded");
data/woff-tools-2009.10.04/woff.c:1179:7: [4] (format) fprintf:
If format strings can be influenced by an attacker, they can be exploited
(CWE-134). Use a constant for the format specification.
fprintf(f, template, prefix, "digital signature (DSIG) table removed");
data/woff-tools-2009.10.04/woff.c:1211:5: [4] (format) fprintf:
If format strings can be influenced by an attacker, they can be exploited
(CWE-134). Use a constant for the format specification.
fprintf(f, template, prefix, msg);
data/woff-tools-2009.10.04/woff2sfnt.c:82:5: [4] (buffer) sprintf:
Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
vsnprintf.
sprintf(buf, "unable to open file %s", name);
data/woff-tools-2009.10.04/sfnt2woff.c:108:17: [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 ((opt = getopt(argc, argv, "v:m:p:h")) != -1) {
data/woff-tools-2009.10.04/woff2sfnt.c:110:17: [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 ((opt = getopt(argc, argv, "vmph")) != -1) {
data/woff-tools-2009.10.04/sfnt2woff.c:75:19: [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 * inFile = fopen(name, "rb");
data/woff-tools-2009.10.04/sfnt2woff.c:77:5: [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[200];
data/woff-tools-2009.10.04/sfnt2woff.c:173:21: [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 * outName = (char *) malloc(strlen(argv[0]) + 8);
data/woff-tools-2009.10.04/sfnt2woff.c:180:3: [2] (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 string.
strcat(outName, ".woff");
data/woff-tools-2009.10.04/sfnt2woff.c:183:22: [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).
FILE * outFile = fopen(outName, "wb");
data/woff-tools-2009.10.04/woff.c:334:7: [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(woffData + tableOffset,
data/woff-tools-2009.10.04/woff.c:501:3: [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(newData, woffData, tableLimit);
data/woff-tools-2009.10.04/woff.c:517:5: [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(newData + offset, metaData, metaCompLen);
data/woff-tools-2009.10.04/woff.c:527:5: [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(newData + offset, privData, privLen);
data/woff-tools-2009.10.04/woff.c:855:7: [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(sfntData + offset, woffData + sourceOffset, origLen);
data/woff-tools-2009.10.04/woff.c:1101:3: [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(data, woffData + offset, length);
data/woff-tools-2009.10.04/woff2sfnt.c:79:19: [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 * inFile = fopen(name, "rb");
data/woff-tools-2009.10.04/woff2sfnt.c:81:5: [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[200];
data/woff-tools-2009.10.04/sfnt2woff.c:173:36: [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).
char * outName = (char *) malloc(strlen(argv[0]) + 8);
ANALYSIS SUMMARY:
Hits = 26
Lines analyzed = 1999 in approximately 0.07 seconds (27985 lines/second)
Physical Source Lines of Code (SLOC) = 1407
Hits@level = [0] 15 [1] 1 [2] 13 [3] 2 [4] 10 [5] 0
Hits@level+ = [0+] 41 [1+] 26 [2+] 25 [3+] 12 [4+] 10 [5+] 0
Hits/KSLOC@level+ = [0+] 29.14 [1+] 18.479 [2+] 17.7683 [3+] 8.52878 [4+] 7.10732 [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.