Ethereal Group : Security Vulnerabilities, CVEs, Published In 2002 (Overflow) CVSS score >= 1

Buffer overflow in the ISIS dissector for Ethereal 0.9.5 and earlier allows remote attackers to cause a denial of service or execute arbitrary code via malformed packets.

Buffer overflow in X11 dissector in Ethereal 0.9.3 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code while Ethereal is parsing keysyms.