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/tcptrack-1.4.2/src/Collector.h Examining data/tcptrack-1.4.2/src/PacketBuffer.h Examining data/tcptrack-1.4.2/src/defs.h Examining data/tcptrack-1.4.2/src/headers.h Examining data/tcptrack-1.4.2/src/SortedIterator.h Examining data/tcptrack-1.4.2/src/util.h Examining data/tcptrack-1.4.2/src/TCPConnection.h Examining data/tcptrack-1.4.2/src/Guesser.h Examining data/tcptrack-1.4.2/src/TCPPacket.h Examining data/tcptrack-1.4.2/src/IPv4Address.h Examining data/tcptrack-1.4.2/src/IPv6Address.h Examining data/tcptrack-1.4.2/src/TCPHeader.h Examining data/tcptrack-1.4.2/src/TCPCapture.h Examining data/tcptrack-1.4.2/src/TCPTrack.h Examining data/tcptrack-1.4.2/src/SocketPair.h Examining data/tcptrack-1.4.2/src/IPAddress.h Examining data/tcptrack-1.4.2/src/AppError.h Examining data/tcptrack-1.4.2/src/PcapError.h Examining data/tcptrack-1.4.2/src/GenericError.h Examining data/tcptrack-1.4.2/src/Collector.cc Examining data/tcptrack-1.4.2/src/TextUI.cc Examining data/tcptrack-1.4.2/src/util.cc Examining data/tcptrack-1.4.2/src/TCPPacket.cc Examining data/tcptrack-1.4.2/src/IPv4Address.cc Examining data/tcptrack-1.4.2/src/IPv6Address.cc Examining data/tcptrack-1.4.2/src/TCPHeader.cc Examining data/tcptrack-1.4.2/src/TCPCapture.cc Examining data/tcptrack-1.4.2/src/TCPTrack.cc Examining data/tcptrack-1.4.2/src/SocketPair.cc Examining data/tcptrack-1.4.2/src/IPAddress.cc Examining data/tcptrack-1.4.2/src/AppError.cc Examining data/tcptrack-1.4.2/src/PcapError.cc Examining data/tcptrack-1.4.2/src/GenericError.cc Examining data/tcptrack-1.4.2/src/Guesser.cc Examining data/tcptrack-1.4.2/src/PacketBuffer.cc Examining data/tcptrack-1.4.2/src/Sniffer.cc Examining data/tcptrack-1.4.2/src/Sniffer.h Examining data/tcptrack-1.4.2/src/SortedIterator.cc Examining data/tcptrack-1.4.2/src/TCContainer.cc Examining data/tcptrack-1.4.2/src/TCContainer.h Examining data/tcptrack-1.4.2/src/TCPConnection.cc Examining data/tcptrack-1.4.2/src/TextUI.h Examining data/tcptrack-1.4.2/src/main.cc FINAL RESULTS: data/tcptrack-1.4.2/src/TCPTrack.cc:138:12: [3] (buffer) getopt: Some older implementations do not protect against internal buffer overflows (CWE-120, CWE-20). Check implementation on installation, or limit the size of all string inputs. while( (o=getopt(argc,argv,"dhvfi:pr:T:")) > 0 ) data/tcptrack-1.4.2/src/IPv4Address.cc:12:9: [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. static char ascii[16]; // 12 for octets, 3 dots, 1 null data/tcptrack-1.4.2/src/IPv4Address.cc:20:2: [2] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. Risk is low because the source has a constant maximum length. sprintf(ascii,"%d.%d.%d.%d",oc1,oc2,oc3,oc4); data/tcptrack-1.4.2/src/IPv6Address.cc:22:9: [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. static char ascii[INET6_ADDRSTRLEN]; data/tcptrack-1.4.2/src/Sniffer.cc:63:2: [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 errbuf[PCAP_ERRBUF_SIZE]; // error messages stored here data/tcptrack-1.4.2/src/TCPTrack.cc:156:15: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). cf.remto = atoi(optarg); data/tcptrack-1.4.2/src/util.cc:72:4: [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( (void *)n->p, (void *)(p+ENET_HEADER_LEN+(vlan_frame ? VLAN_HEADER_LEN : 0)), n->len); data/tcptrack-1.4.2/src/util.cc:90:3: [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( (void *)n->p, (void *)(p+SLL_HEADER_LEN), n->len); data/tcptrack-1.4.2/src/util.cc:102:3: [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( (void *)n->p, (void *)(p), n->len); ANALYSIS SUMMARY: Hits = 9 Lines analyzed = 3855 in approximately 0.17 seconds (22818 lines/second) Physical Source Lines of Code (SLOC) = 2521 Hits@level = [0] 3 [1] 0 [2] 8 [3] 1 [4] 0 [5] 0 Hits@level+ = [0+] 12 [1+] 9 [2+] 9 [3+] 1 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 4.76002 [1+] 3.57001 [2+] 3.57001 [3+] 0.396668 [4+] 0 [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.