Format string vulnerability in tcpflow, when used in a setuid context, allows local users to execute arbitrary code via the device name argument, as demonstrated in Sustworks IPNetSentryX and IPNetMonitorX the setuid program RunTCPFlow.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2003-0665
http://www.atstake.com/research/advisories/2003/a080703-2.txt
http://www.atstake.com/research/advisories/2003/a080703-1.txt