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

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• apple mac os xbefore 10.15.2
• debian debian linux10.0
• debian debian linux8.0
• debian debian linux9.0
• f5 traffix signaling delivery controller5.0.0 and later · up to 5.1.0 inclusive
• fedoraproject fedora29
• fedoraproject fedora30
• fedoraproject fedora31
• opensuse leap15.0
• opensuse leap15.1
• redhat enterprise linux7.0
• redhat enterprise linux8.0
• tcpdump tcpdumpbefore 4.9.3

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2007-3798Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows remote attackers to execute arbitrary code via craf
  60This week
• CVE-2017-11543tcpdump 4.9.0 has a buffer overflow in the sliplink_print function in print-sl.c.
  41Plan
• CVE-2017-5484The ATM parser in tcpdump before 4.9.0 has a buffer overflow in print-atm.c:sig_print().
  41Plan
• CVE-2017-5482The Q.933 parser in tcpdump before 4.9.0 has a buffer overflow in print-fr.c:q933_print(), a different vulnerability than CVE-2016-8575.
  41Plan
• CVE-2017-5342In tcpdump before 4.9.0, a bug in multiple protocol parsers (Geneve, GRE, NSH, OTV, VXLAN and VXLAN GPE) could cause a buffer overflow in pr
  41Plan
• CVE-2017-5341The OTV parser in tcpdump before 4.9.0 has a buffer overflow in print-otv.c:otv_print().
  41Plan

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1char buf[256];2memcpy(buf, pkt->data, pkt->len);

1char buf[256];2if (pkt->len > sizeof(buf)) {3  return -EINVAL;4}5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.