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/libcompress-raw-bzip2-perl-2.096/ppport.h Examining data/libcompress-raw-bzip2-perl-2.096/fallback/constants.h Examining data/libcompress-raw-bzip2-perl-2.096/bzip2-src/blocksort.c Examining data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib_private.h Examining data/libcompress-raw-bzip2-perl-2.096/bzip2-src/crctable.c Examining data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib.c Examining data/libcompress-raw-bzip2-perl-2.096/bzip2-src/huffman.c Examining data/libcompress-raw-bzip2-perl-2.096/bzip2-src/decompress.c Examining data/libcompress-raw-bzip2-perl-2.096/bzip2-src/compress.c Examining data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib.h Examining data/libcompress-raw-bzip2-perl-2.096/bzip2-src/randtable.c FINAL RESULTS: data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib.c:1424:4: [4] (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). strcat(mode2, writing ? "w" : "r" ); data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib_private.h:65:7: [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 ( stderr, \ data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib_private.h:74:4: [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(stderr,zf) data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib_private.h:76:4: [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(stderr,zf,za1) data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib_private.h:78:4: [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(stderr,zf,za1,za2) data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib_private.h:80:4: [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(stderr,zf,za1,za2,za3) data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib_private.h:82:4: [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(stderr,zf,za1,za2,za3,za4) data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib_private.h:84:4: [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(stderr,zf,za1,za2,za3,za4,za5) data/libcompress-raw-bzip2-perl-2.096/ppport.h:7044:14: [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. retval = vsnprintf(buffer, len, format, ap); data/libcompress-raw-bzip2-perl-2.096/ppport.h:7046:14: [4] (format) vsprintf: Potential format string problem (CWE-134). Make format string constant. retval = vsprintf(buffer, format, ap); data/libcompress-raw-bzip2-perl-2.096/ppport.h:7075:5: [4] (format) vsprintf: Potential format string problem (CWE-134). Make format string constant. vsprintf(buffer, pat, args); data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib.c:1397:4: [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 unused[BZ_MAX_UNUSED]; data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib.c:1400:4: [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 mode2[10] = ""; data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib.c:1432:14: [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(path,mode2); data/libcompress-raw-bzip2-perl-2.096/ppport.h:3991:42: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. # define CopyD(s,d,n,t) memcpy((char*)(d),(char*)(s), (n) * sizeof(t)) data/libcompress-raw-bzip2-perl-2.096/ppport.h:6899:38: [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. && (xdigit = strchr((char *) PL_hexdigit, s[1]))) data/libcompress-raw-bzip2-perl-2.096/ppport.h:7121:9: [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(dst + used, src, copy); data/libcompress-raw-bzip2-perl-2.096/ppport.h:7150:9: [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(dst, src, copy); data/libcompress-raw-bzip2-perl-2.096/ppport.h:7242:5: [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 octbuf[32] = "%123456789ABCDF"; data/libcompress-raw-bzip2-perl-2.096/ppport.h:7312:13: [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. char tmp[2]; data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib.c:915:14: [1] (buffer) fgetc: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). Int32 c = fgetc ( f ); data/libcompress-raw-bzip2-perl-2.096/bzip2-src/bzlib.c:1425:4: [1] (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 character. strcat(mode2,"b"); /* binary mode */ data/libcompress-raw-bzip2-perl-2.096/ppport.h:5489:24: [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). sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); data/libcompress-raw-bzip2-perl-2.096/ppport.h:5497:59: [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). # define sv_vcatpvf(sv, pat, args) sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)) data/libcompress-raw-bzip2-perl-2.096/ppport.h:5501:59: [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). # define sv_vsetpvf(sv, pat, args) sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)) data/libcompress-raw-bzip2-perl-2.096/ppport.h:5521:24: [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). sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); data/libcompress-raw-bzip2-perl-2.096/ppport.h:5549:24: [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). sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); data/libcompress-raw-bzip2-perl-2.096/ppport.h:5570:27: [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). sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); \ data/libcompress-raw-bzip2-perl-2.096/ppport.h:5592:24: [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). sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); data/libcompress-raw-bzip2-perl-2.096/ppport.h:5620:24: [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). sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); data/libcompress-raw-bzip2-perl-2.096/ppport.h:5641:27: [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). sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); \ data/libcompress-raw-bzip2-perl-2.096/ppport.h:5695:65: [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). # define HvNAMELEN_get(hv) (HvNAME_get(hv) ? (I32)strlen(HvNAME_get(hv)) : 0) data/libcompress-raw-bzip2-perl-2.096/ppport.h:6493:22: [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). STRLEN len = strlen(radix); data/libcompress-raw-bzip2-perl-2.096/ppport.h:7077:12: [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 strlen(buffer); data/libcompress-raw-bzip2-perl-2.096/ppport.h:7117:12: [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). used = strlen(dst); data/libcompress-raw-bzip2-perl-2.096/ppport.h:7118:14: [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). length = strlen(src); data/libcompress-raw-bzip2-perl-2.096/ppport.h:7147:14: [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). length = strlen(src); ANALYSIS SUMMARY: Hits = 37 Lines analyzed = 12877 in approximately 0.34 seconds (38170 lines/second) Physical Source Lines of Code (SLOC) = 6978 Hits@level = [0] 3 [1] 17 [2] 9 [3] 0 [4] 11 [5] 0 Hits@level+ = [0+] 40 [1+] 37 [2+] 20 [3+] 11 [4+] 11 [5+] 0 Hits/KSLOC@level+ = [0+] 5.7323 [1+] 5.30238 [2+] 2.86615 [3+] 1.57638 [4+] 1.57638 [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.