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 tcpdump.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "low", "binaries": [ { "binary_version": "4.9.3-0ubuntu0.16.04.1+esm1", "binary_name": "tcpdump" }, { "binary_version": "4.9.3-0ubuntu0.16.04.1+esm1", "binary_name": "tcpdump-dbgsym" } ] }