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/r-cran-warp-0.2.0/src/warp.h Examining data/r-cran-warp-0.2.0/src/boundary.c Examining data/r-cran-warp-0.2.0/src/coercion.c Examining data/r-cran-warp-0.2.0/src/timezone.c Examining data/r-cran-warp-0.2.0/src/date.c Examining data/r-cran-warp-0.2.0/src/init.c Examining data/r-cran-warp-0.2.0/src/utils.c Examining data/r-cran-warp-0.2.0/src/distance.c Examining data/r-cran-warp-0.2.0/src/utils.h Examining data/r-cran-warp-0.2.0/src/get.c Examining data/r-cran-warp-0.2.0/src/divmod.h Examining data/r-cran-warp-0.2.0/src/change.c Examining data/r-cran-warp-0.2.0/src/divmod.c FINAL RESULTS: data/r-cran-warp-0.2.0/src/utils.c:245:3: [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. vsnprintf(buf, BUFSIZE, why, dots); data/r-cran-warp-0.2.0/src/utils.c:241:3: [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[BUFSIZE]; data/r-cran-warp-0.2.0/src/timezone.c:42:7: [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(time_zone) == 0) { data/r-cran-warp-0.2.0/src/timezone.c:131:7: [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(origin_time_zone) == 0) { ANALYSIS SUMMARY: Hits = 4 Lines analyzed = 4385 in approximately 0.10 seconds (44007 lines/second) Physical Source Lines of Code (SLOC) = 2883 Hits@level = [0] 0 [1] 2 [2] 1 [3] 0 [4] 1 [5] 0 Hits@level+ = [0+] 4 [1+] 4 [2+] 2 [3+] 1 [4+] 1 [5+] 0 Hits/KSLOC@level+ = [0+] 1.38744 [1+] 1.38744 [2+] 0.693722 [3+] 0.346861 [4+] 0.346861 [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.