Symantec : Security Vulnerabilities, CVEs, Published In 2001 (Denial of service)

Symantec LiveUpdate 1.4 through 1.6, and possibly later versions, allows remote attackers to cause a denial of service (flood) via DNS spoofing of the update.symantec.com site.

Symantec Ghost 6.5 and earlier allows a remote attacker to create a denial of service by sending large (> 45Kb) amounts of data to the Ghost Configuration Server on port 1347, which triggers an error that is not properly handled.