Tcpdump

The ISO CLNS parser in tcpdump before 4.9.0 has a buffer overflow in print-isoclns.c:clnp_print().

The Q.933 parser in tcpdump before 4.9.0 has a buffer overflow in print-fr.c:q933_print(), a different vulnerability than CVE-2017-5482.

The FRF.15 parser in tcpdump before 4.9.0 has a buffer overflow in print-fr.c:frf15_print().

A bug in util-print.c:relts_print() in tcpdump before 4.9.0 could cause a buffer overflow in multiple protocol parsers (DNS, DVMRP, HSRP, IGMP, lightweight resolver protocol, PIM).

The Classical IP over ATM parser in tcpdump before 4.9.0 has a buffer overflow in print-cip.c:cip_if_print().

The GeoNetworking parser in tcpdump before 4.9.0 has a buffer overflow in print-geonet.c, multiple functions.

The CALM FAST parser in tcpdump before 4.9.0 has a buffer overflow in print-calm-fast.c:calm_fast_print().

The TFTP parser in tcpdump before 4.9.0 has a buffer overflow in print-tftp.c:tftp_print().

The BOOTP parser in tcpdump before 4.9.0 has a buffer overflow in print-bootp.c:bootp_print().

The TCP parser in tcpdump before 4.9.0 has a buffer overflow in print-tcp.c:tcp_print().

The IP parser in tcpdump before 4.9.0 has a buffer overflow in print-ip.c, multiple functions.

The AppleTalk parser in tcpdump before 4.9.0 has a buffer overflow in print-atalk.c, multiple functions.

The STP parser in tcpdump before 4.9.0 has a buffer overflow in print-stp.c, multiple functions.

The GRE parser in tcpdump before 4.9.0 has a buffer overflow in print-gre.c, multiple functions.

The ZeroMQ parser in tcpdump before 4.9.0 has an integer overflow in print-zeromq.c:zmtp1_print_frame().

The VAT parser in tcpdump before 4.9.0 has a buffer overflow in print-udp.c:vat_print().

The UDP parser in tcpdump before 4.9.0 has a buffer overflow in print-udp.c:udp_print().

The RTP parser in tcpdump before 4.9.0 has a buffer overflow in print-udp.c:rtp_print().

The RTCP parser in tcpdump before 4.9.0 has a buffer overflow in print-udp.c:rtcp_print().

The PPP parser in tcpdump before 4.9.0 has a buffer overflow in print-ppp.c:ppp_hdlc_if_print().

The PIM parser in tcpdump before 4.9.0 has a buffer overflow in print-pim.c:pimv2_check_checksum().

The MPLS parser in tcpdump before 4.9.0 has a buffer overflow in print-mpls.c:mpls_print().

The LLC/SNAP parser in tcpdump before 4.9.0 has a buffer overflow in print-llc.c:llc_print().

The Juniper PPPoE ATM parser in tcpdump before 4.9.0 has a buffer overflow in print-juniper.c:juniper_parse_header().

The IPComp parser in tcpdump before 4.9.0 has a buffer overflow in print-ipcomp.c:ipcomp_print().

The IEEE 802.11 parser in tcpdump before 4.9.0 has a buffer overflow in print-802_11.c:ieee802_11_radio_print().

The Ethernet parser in tcpdump before 4.9.0 has a buffer overflow in print-ether.c:ethertype_print().

The compressed SLIP parser in tcpdump before 4.9.0 has a buffer overflow in print-sl.c:sl_if_print().

The ATM parser in tcpdump before 4.9.0 has a buffer overflow in print-atm.c:oam_print().

The ARP parser in tcpdump before 4.9.0 has a buffer overflow in print-arp.c:arp_print().

The AH parser in tcpdump before 4.9.0 has a buffer overflow in print-ah.c:ah_print().

The RESP parser in tcpdump before 4.9.2 could enter an infinite loop due to a bug in print-resp.c:resp_get_length().

tcpdump 4.9.0 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via crafted packet data. The crash occurs in the EXTRACT_16BITS function, called from the stp_print function for the Spanning Tree Protocol.

print-wb.c in tcpdump before 4.7.4 allows remote attackers to cause a denial of service (segmentation fault and process crash).

tcpdump before 4.9.3 has a heap-based buffer over-read related to aoe_print in print-aoe.c and lookup_emem in addrtoname.c.

Due to a bug in packet data buffers management, the PPP printer in tcpdump can enter an infinite loop when reading a crafted DLT_PPP_SERIAL .pcap savefile. This problem does not affect any tcpdump release, but it affected the git master branch from 2023-06-05 to 2024-03-21.

Integer underflow in the isakmp_id_print for TCPDUMP 3.8.1 and earlier allows remote attackers to cause a denial of service (crash) via an ISAKMP packet with an Identification payload with a length that becomes less than 8 during byte order conversion, which causes an…

On Windows only, if libpcap needs to convert a Windows error message to UTF-8 and the message includes characters that UTF-8 represents using 4 bytes, utf_16le_to_utf_8_truncated() can write data beyond the end of the provided buffer.

pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer. The string argument must be a well-formed MAC-48 address in one of the supported formats, but this requirement has been poorly documented. If an…

The rpki_rtr_pdu_print function in print-rpki-rtr.c in the TCP printer in tcpdump before 4.7.2 allows remote attackers to cause a denial of service (out-of-bounds read or write and crash) via a crafted header length in an RPKI-RTR Protocol Data Unit (PDU).

Multiple Integer underflows in the geonet_print function in tcpdump 4.5.0 through 4.6.2, when in verbose mode, allow remote attackers to cause a denial of service (segmentation fault and crash) via a crafted length value in a Geonet frame.

The bgp_update_print function in tcpdump 3.x does not properly handle a -1 return value from the decode_prefix4 function, which allows remote attackers to cause a denial of service (infinite loop) via a crafted BGP packet.

tcpdump 3.8.3 and earlier allows remote attackers to cause a denial of service (infinite loop) via a crafted (1) BGP packet, which is not properly handled by RT_ROUTING_INFO, or (2) LDP packet, which is not properly handled by the ldp_print function.

The isis_print function, as called by isoclns_print, in tcpdump 3.9.1 and earlier allows remote attackers to cause a denial of service (infinite loop) via a zero length, as demonstrated using a GRE packet.

The rsvp_print function in tcpdump 3.9.1 and earlier allows remote attackers to cause a denial of service (infinite loop) via a crafted RSVP packet of length 4.

The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.

isakmp_sub_print in tcpdump 3.6 through 3.7.1 allows remote attackers to cause a denial of service (CPU consumption) via a certain malformed ISAKMP packet to UDP port 500, which causes tcpdump to enter an infinite loop.

tcpdump, Ethereal, and other sniffer packages allow remote attackers to cause a denial of service via malformed DNS packets in which a jump offset refers to itself, which causes tcpdump to enter an infinite loop while decompressing the packet.

ip_print procedure in Tcpdump 3.4a allows remote attackers to cause a denial of service via a packet with a zero length header, which causes an infinite loop and core dump when tcpdump prints the packet.

The DCCP parser in tcpdump before 4.9.3 has a buffer over-read in print-dccp.c:dccp_print_option().