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/sibelia-3.0.7+dfsg/src/platform.cpp Examining data/sibelia-3.0.7+dfsg/src/vertexenumeration.cpp Examining data/sibelia-3.0.7+dfsg/src/bulgeremoval.cpp Examining data/sibelia-3.0.7+dfsg/src/postprocessor.h Examining data/sibelia-3.0.7+dfsg/src/blockinstance.cpp Examining data/sibelia-3.0.7+dfsg/src/dnasequence.h Examining data/sibelia-3.0.7+dfsg/src/sibelia.cpp Examining data/sibelia-3.0.7+dfsg/src/hashing.h Examining data/sibelia-3.0.7+dfsg/src/util.h Examining data/sibelia-3.0.7+dfsg/src/bifurcationstorage.cpp Examining data/sibelia-3.0.7+dfsg/src/unrolledlist.h Examining data/sibelia-3.0.7+dfsg/src/indexedsequence.cpp Examining data/sibelia-3.0.7+dfsg/src/stranditerator.cpp Examining data/sibelia-3.0.7+dfsg/src/synteny.cpp Examining data/sibelia-3.0.7+dfsg/src/outputgenerator.h Examining data/sibelia-3.0.7+dfsg/src/blockfinder.cpp Examining data/sibelia-3.0.7+dfsg/src/fasta.cpp Examining data/sibelia-3.0.7+dfsg/src/fasta.h Examining data/sibelia-3.0.7+dfsg/src/platform.h Examining data/sibelia-3.0.7+dfsg/src/resource.h Examining data/sibelia-3.0.7+dfsg/src/blockfinder.h Examining data/sibelia-3.0.7+dfsg/src/bifurcationstorage.h Examining data/sibelia-3.0.7+dfsg/src/indexedsequence.h Examining data/sibelia-3.0.7+dfsg/src/postprocessor.cpp Examining data/sibelia-3.0.7+dfsg/src/blockinstance.h Examining data/sibelia-3.0.7+dfsg/src/edge.cpp Examining data/sibelia-3.0.7+dfsg/src/serialization.cpp Examining data/sibelia-3.0.7+dfsg/src/dnasequence.cpp Examining data/sibelia-3.0.7+dfsg/src/test/unrolledlisttest.cpp Examining data/sibelia-3.0.7+dfsg/src/test/unrolledlisttest.h Examining data/sibelia-3.0.7+dfsg/src/util.cpp Examining data/sibelia-3.0.7+dfsg/src/resource.cpp Examining data/sibelia-3.0.7+dfsg/src/common.h Examining data/sibelia-3.0.7+dfsg/src/outputgenerator.cpp FINAL RESULTS: data/sibelia-3.0.7+dfsg/src/serialization.cpp:22:4: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(&buf[0], "[color=\"%s\", label=\"(%i, %i)\"];", color.c_str(), static_cast<int>(chr), static_cast<int>(pos)); data/sibelia-3.0.7+dfsg/src/serialization.cpp:105:4: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(&buf[0], "[color=\"%s\", label=\"chr=%i pos=%i len=%i orpos=%i orlen=%i ch='%c'\"];", color.c_str(), uchr, upos, ulength, uorpos, uorlength, edge[i].GetFirstChar()); data/sibelia-3.0.7+dfsg/src/test/unrolledlisttest.cpp:176:21: [3] (random) random: This function is not sufficiently random for security-related functions such as key and nonce creation (CWE-327). Use a more secure technique for acquiring random values. list.push_back(random); data/sibelia-3.0.7+dfsg/src/test/unrolledlisttest.cpp:177:25: [3] (random) random: This function is not sufficiently random for security-related functions such as key and nonce creation (CWE-327). Use a more secure technique for acquiring random values. testList.push_back(random); data/sibelia-3.0.7+dfsg/src/test/unrolledlisttest.cpp:184:2: [3] (random) srand: This function is not sufficiently random for security-related functions such as key and nonce creation (CWE-327). Use a more secure technique for acquiring random values. srand((unsigned)time(0)); data/sibelia-3.0.7+dfsg/src/outputgenerator.cpp:564:10: [2] (misc) open: 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). stream.open(fileName.c_str()); data/sibelia-3.0.7+dfsg/src/outputgenerator.cpp:576:11: [2] (misc) open: 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). stream.open((*itDirs + "/" + fileName).c_str()); data/sibelia-3.0.7+dfsg/src/platform.cpp:70:31: [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). if(notExists && (handle_ = fopen(path_.c_str(), "w+b")) != 0) data/sibelia-3.0.7+dfsg/src/serialization.cpp:20:4: [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 buf[1 << 8]; data/sibelia-3.0.7+dfsg/src/serialization.cpp:97:4: [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 buf[1 << 8]; data/sibelia-3.0.7+dfsg/src/hashing.h:122:16: [1] (buffer) mismatch: Function does not check the second iterator for over-read conditions (CWE-126). This function is often discouraged by most C++ coding standards in favor of its safer alternatives provided since C++14. Consider using a form of this function that checks the second iterator before potentially overflowing it. return std::mismatch(it1, end1, it2).first == end1; ANALYSIS SUMMARY: Hits = 11 Lines analyzed = 13752 in approximately 0.54 seconds (25357 lines/second) Physical Source Lines of Code (SLOC) = 12662 Hits@level = [0] 1 [1] 1 [2] 5 [3] 3 [4] 2 [5] 0 Hits@level+ = [0+] 12 [1+] 11 [2+] 10 [3+] 5 [4+] 2 [5+] 0 Hits/KSLOC@level+ = [0+] 0.947718 [1+] 0.868741 [2+] 0.789765 [3+] 0.394882 [4+] 0.157953 [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.