FC1 last shipped with ethereal 0.10.0a-0.1 therefore it is vulnerable to:

http://www.ethereal.com/appnotes/enpa-sa-00014.html

    * It was possible for the SPNEGO dissector to dereference a null
pointer, causing a crash (0.9.8 to 0.10.3).

http://www.ethereal.com/appnotes/enpa-sa-00013.html

    * Stefan Esser discovered thirteen buffer overflows in the
following protocol dissectors: NetFlow, IGAP, EIGRP, PGM, IrDA, BGP,
ISUP, and TCAP. (CAN-2004-0176)
    * Jonathan Heussser discovered that a carefully-crafted RADIUS
packet could cause a crash. (CAN-2004-0365)

(the other issues in these advisories didn't apply to version 0.10.0a)