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Symantec Norton Antivirus LiveUpdate DoS Vulnerability

Symantec's Norton Antivirus contains a feature called LiveUpdate. LiveUpdate is a process that checks for new virus definitions over the internet, downloads and installs them from a Symantec site. This process can either be scheduled or performed manually.

It is possible for a remote user to cause LiveUpdate to redirect a download from a site of his/her choice. Therefore, a remote host could send an unusually large file as the update, potentially causing a denial of services on the target system.







 

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