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/libfile-libmagic-perl-1.23/t/samples/foo.c Examining data/libfile-libmagic-perl-1.23/ppport.h Examining data/libfile-libmagic-perl-1.23/const/inc.c FINAL RESULTS: data/libfile-libmagic-perl-1.23/ppport.h:15970:14: [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/libfile-libmagic-perl-1.23/ppport.h:15972:14: [4] (format) vsprintf: Potential format string problem (CWE-134). Make format string constant. retval = vsprintf(buffer, format, ap); data/libfile-libmagic-perl-1.23/ppport.h:16007:5: [4] (format) vsprintf: Potential format string problem (CWE-134). Make format string constant. vsprintf(buffer, pat, args); data/libfile-libmagic-perl-1.23/t/samples/foo.c:4:5: [4] (format) printf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. printf "Hello\n"; data/libfile-libmagic-perl-1.23/ppport.h:13742:42: [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/libfile-libmagic-perl-1.23/ppport.h:15823:38: [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/libfile-libmagic-perl-1.23/ppport.h:16054:9: [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/libfile-libmagic-perl-1.23/ppport.h:16084:9: [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/libfile-libmagic-perl-1.23/ppport.h:16751:5: [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/libfile-libmagic-perl-1.23/ppport.h:16821:13: [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/libfile-libmagic-perl-1.23/ppport.h:12965:79: [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 vnewSVpvf(pat, args) ({ SV *_sv = newSV(0); sv_vsetpvfn(_sv, (pat), strlen((pat)), (args), Null(SV**), 0, Null(bool*)); _sv; }) data/libfile-libmagic-perl-1.23/ppport.h:12967:79: [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 vnewSVpvf(pat, args) ((PL_Sv = newSV(0)), sv_vsetpvfn(PL_Sv, (pat), strlen((pat)), (args), Null(SV**), 0, Null(bool*)), PL_Sv) data/libfile-libmagic-perl-1.23/ppport.h:12972:59: [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/libfile-libmagic-perl-1.23/ppport.h:12976:59: [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/libfile-libmagic-perl-1.23/ppport.h:12997:24: [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/libfile-libmagic-perl-1.23/ppport.h:13026:24: [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/libfile-libmagic-perl-1.23/ppport.h:13047:27: [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/libfile-libmagic-perl-1.23/ppport.h:13070:24: [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/libfile-libmagic-perl-1.23/ppport.h:13099:24: [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/libfile-libmagic-perl-1.23/ppport.h:13120:27: [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/libfile-libmagic-perl-1.23/ppport.h:14778:65: [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/libfile-libmagic-perl-1.23/ppport.h:15414:22: [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/libfile-libmagic-perl-1.23/ppport.h:16009:12: [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/libfile-libmagic-perl-1.23/ppport.h:16050:12: [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/libfile-libmagic-perl-1.23/ppport.h:16051:14: [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/libfile-libmagic-perl-1.23/ppport.h:16081:14: [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 = 26 Lines analyzed = 17286 in approximately 0.55 seconds (31452 lines/second) Physical Source Lines of Code (SLOC) = 5405 Hits@level = [0] 0 [1] 16 [2] 6 [3] 0 [4] 4 [5] 0 Hits@level+ = [0+] 26 [1+] 26 [2+] 10 [3+] 4 [4+] 4 [5+] 0 Hits/KSLOC@level+ = [0+] 4.81036 [1+] 4.81036 [2+] 1.85014 [3+] 0.740056 [4+] 0.740056 [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.