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/libtimezonemap-0.4.6/src/cc-timezone-location.c Examining data/libtimezonemap-0.4.6/src/cc-timezone-location.h Examining data/libtimezonemap-0.4.6/src/cc-timezone-map.c Examining data/libtimezonemap-0.4.6/src/cc-timezone-map.h Examining data/libtimezonemap-0.4.6/src/test-timezone.c Examining data/libtimezonemap-0.4.6/src/timezone-completion.c Examining data/libtimezonemap-0.4.6/src/timezone-completion.h Examining data/libtimezonemap-0.4.6/src/tz.c Examining data/libtimezonemap-0.4.6/src/tz.h FINAL RESULTS: data/libtimezonemap-0.4.6/src/cc-timezone-map.c:700:3: [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[16]; data/libtimezonemap-0.4.6/src/test-timezone.c:41:9: [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 buf[16]; data/libtimezonemap-0.4.6/src/tz.c:51:16: [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 *fh = fopen (filename, "r"); data/libtimezonemap-0.4.6/src/tz.c:52:5: [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[4096]; data/libtimezonemap-0.4.6/src/tz.c:184:5: [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[4096]; data/libtimezonemap-0.4.6/src/timezone-completion.c:111:58: [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). amatches = strncmp (casefolded_text, casefolded_namea, strlen(casefolded_text)) == 0; data/libtimezonemap-0.4.6/src/timezone-completion.c:112:58: [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). bmatches = strncmp (casefolded_text, casefolded_nameb, strlen(casefolded_text)) == 0; data/libtimezonemap-0.4.6/src/timezone-completion.c:246:7: [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 (strlen (priv->request_text) < 4) data/libtimezonemap-0.4.6/src/tz.c:413:17: [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 (!pos || strlen(pos) < 4 || digits > 9) return 0.0; data/libtimezonemap-0.4.6/src/tz.c:422:46: [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 (t1 >= 0.0) return t1 + t2/pow (10.0, strlen(fraction)); data/libtimezonemap-0.4.6/src/tz.c:423:36: [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). else return t1 - t2/pow (10.0, strlen(fraction)); ANALYSIS SUMMARY: Hits = 11 Lines analyzed = 3235 in approximately 0.10 seconds (31533 lines/second) Physical Source Lines of Code (SLOC) = 2488 Hits@level = [0] 0 [1] 6 [2] 5 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 11 [1+] 11 [2+] 5 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 4.42122 [1+] 4.42122 [2+] 2.00965 [3+] 0 [4+] 0 [5+] 0 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.