Tcpdump

The force printer in tcpdump before 4.7.2 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

Integer signedness error in the mobility_opt_print function in the IPv6 mobility printer in tcpdump before 4.7.2 allows remote attackers to cause a denial of service (out-of-bounds read and crash) or possibly execute arbitrary code via a negative length value.

Remote packet capture support is disabled by default in libpcap. When a user builds libpcap with remote packet capture support enabled, one of the functions that become available is pcap_findalldevs_ex(). One of the function arguments can be a filesystem path, which normally…

In affected libpcap versions during the setup of a remote packet capture the internal function sock_initaddress() calls getaddrinfo() and possibly freeaddrinfo(), but does not clearly indicate to the caller function whether freeaddrinfo() still remains to be called after the…

The SMB protocol decoder in tcpdump version 4.99.3 can perform an out-of-bounds write when decoding a crafted network packet.

The VRRP parser in tcpdump before 4.9.3 has a buffer over-read in print-vrrp.c:vrrp_print() for VRRP version 3, a different vulnerability than CVE-2018-14463.

The tok2strbuf() function in tcpdump 4.10.0-PRE-GIT was used by the SOME/IP dissector in an unsafe way.

The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory.

sf-pcapng.c in libpcap before 1.9.1 does not properly validate the PHB header length before allocating memory.

rpcapd/daemon.c in libpcap before 1.9.1 allows SSRF because a URL may be provided as a capture source.

rpcapd/daemon.c in libpcap before 1.9.1 on non-Windows platforms provides details about why authentication failed, which might make it easier for attackers to enumerate valid usernames.

rpcapd/daemon.c in libpcap before 1.9.1 mishandles certain length values because of reuse of a variable. This may open up an attack vector involving extra data at the end of a request.

lmp_print_data_link_subobjs() in print-lmp.c in tcpdump before 4.9.3 lacks certain bounds checks.

The SMB parser in tcpdump before 4.9.3 has stack exhaustion in smbutil.c:smb_fdata() via recursion.

The SMB parser in tcpdump before 4.9.3 has buffer over-reads in print-smb.c:print_trans() for \MAILSLOT\BROWSE and \PIPE\LANMAN.

The command-line argument parser in tcpdump before 4.99.0 has a buffer overflow in tcpdump.c:read_infile(). To trigger this vulnerability the attacker needs to create a 4GB file on the local filesystem and to specify the file name as the value of the -F command-line argument of…

The BGP parser in tcpdump before 4.9.3 allows stack consumption in print-bgp.c:bgp_attr_print() because of unlimited recursion.

The BGP parser in tcpdump before 4.9.3 has a buffer over-read in print-bgp.c:bgp_attr_print() (MP_REACH_NLRI).

The ICMPv6 parser in tcpdump before 4.9.3 has a buffer over-read in print-icmp6.c.

The OSPFv3 parser in tcpdump before 4.9.3 has a buffer over-read in print-ospf6.c:ospf6_print_lshdr().

The command-line argument parser in tcpdump before 4.9.3 has a buffer overflow in tcpdump.c:get_next_file().

The Babel parser in tcpdump before 4.9.3 has a buffer over-read in print-babel.c:babel_print_v2().

The IKEv1 parser in tcpdump before 4.9.3 has a buffer over-read in print-isakmp.c:ikev1_n_print().

The FRF.16 parser in tcpdump before 4.9.3 has a buffer over-read in print-fr.c:mfr_print().

The BGP parser in tcpdump before 4.9.3 has a buffer over-read in print-bgp.c:bgp_capabilities_print() (BGP_CAPCODE_MP).

The Rx parser in tcpdump before 4.9.3 has a buffer over-read in print-rx.c:rx_cache_find() and rx_cache_insert().

The LMP parser in tcpdump before 4.9.3 has a buffer over-read in print-lmp.c:lmp_print_data_link_subobjs().

The VRRP parser in tcpdump before 4.9.3 has a buffer over-read in print-vrrp.c:vrrp_print() for VRRP version 2, a different vulnerability than CVE-2019-15167.

The LDP parser in tcpdump before 4.9.3 has a buffer over-read in print-ldp.c:ldp_tlv_print().

tcpdump before 4.9.3 mishandles the printing of SMB data (issue 1 of 2).

tcpdump.org tcpdump 4.9.2 is affected by: CWE-126: Buffer Over-read. The impact is: May expose Saved Frame Pointer, Return Address etc. on stack. The component is: line 234: "ND_PRINT((ndo, "%s", buf));", in function named "print_prefix", in "print-hncp.c". The attack vector is:…

In tcpdump 4.9.2, a stack-based buffer over-read exists in the print_prefix function of print-hncp.c via crafted packet data because of missing initialization.

The osi_print_cksum function in print-isoclns.c in the ethernet printer in tcpdump before 4.7.2 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted (1) length, (2) offset, or (3) base pointer checksum value.

tcpdump 3.8 through 4.6.2 might allow remote attackers to obtain sensitive information from memory or cause a denial of service (packet loss or segmentation fault) via a crafted Ad hoc On-Demand Distance Vector (AODV) packet, which triggers an out-of-bounds memory access.

Integer underflow in the olsr_print function in tcpdump 3.9.6 through 4.6.2, when in verbose mode, allows remote attackers to cause a denial of service (crash) via a crafted length value in an OLSR frame.

Off-by-one buffer overflow in the parse_elements function in the 802.11 printer code (print-802_11.c) for tcpdump 3.9.5 and earlier allows remote attackers to cause a denial of service (crash) via a crafted 802.11 frame. NOTE: this was originally referred to as heap-based, but…

TCPDUMP 3.8.1 and earlier allows remote attackers to cause a denial of service (crash) via ISAKMP packets containing a Delete payload with a large number of SPI's, which causes an out-of-bounds read, as demonstrated by the Striker ISAKMP Protocol Test Suite.

The rawprint function in the ISAKMP decoding routines (print-isakmp.c) for tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (segmentation fault) via malformed ISAKMP packets that cause invalid "len" or "loc" values to be used in a loop, a different…

The print_attr_string function in print-radius.c for tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (segmentation fault) via a RADIUS attribute with a large length value.

tcpdump before 3.8.1 allows remote attackers to cause a denial of service (infinite loop) via certain ISAKMP packets, a different vulnerability than CVE-2004-0057.

Unknown vulnerability in tcpdump before 3.7.2 related to an inability to "Handle unknown RADIUS attributes properly," allows remote attackers to cause a denial of service (infinite loop), a different vulnerability than CAN-2003-0093.

The RADIUS decoder in tcpdump 3.6.2 and earlier allows remote attackers to cause a denial of service (crash) via an invalid RADIUS packet with a header length field of 0, which causes tcpdump to generate data within an infinite loop.

The BGP decoding routines in tcpdump 3.6.x before 3.7 do not properly copy data, which allows remote attackers to cause a denial of service (application crash).

Buffer overflow in tcpdump 3.6.2 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code via an NFS packet.

Buffer overflow in print-rx.c of tcpdump 3.x (probably 3.6x) allows remote attackers to cause a denial of service and possibly execute arbitrary code via AFS RPC packets with invalid lengths that trigger an integer signedness error, a different vulnerability than CVE-2000-1026.