Updated ethereal packages are available which fix various security issues.
Ethereal is a package designed for monitoring network traffic on your system. Several security issues have been found in the Ethereal packages distributed with Red Hat Linux 7.2 and 7.3. A buffer overflow in Ethereal 0.9.5 and earlier allows remote attackers to cause a denial of service or execute arbitrary code via the ISIS dissector. (CAN-2002-0834) Buffer overflows in Ethereal 0.9.4 and earlier allow remote attackers to cause a denial of service or execute arbitrary code via (1) the BGP dissector, or (2) the WCP dissector. (CAN-2002-0821) Ethereal 0.9.4 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code via the (1) SOCKS, (2) RSVP, (3) AFS, or (4) LMP dissectors, which can be caused to core dump. (CAN-2002-0822) Users of Ethereal should update to the errata packages containing Ethereal version 0.9.6 which is not vulnerable to these issues.