Cisco has just released a new security advisory that details what caused the address storms that recently afflicted Duke University’s wireless net.
The advisory, posted on the company’s Web site, says that Cisco’s wireless LAN controllers have “multiple vulnerabilities in the handling of Address Resolution Protocol (ARP) packets.” These vulnerabilities “could result in a denial of service (DoS) in certain environments.” The vendor is offering free software to patch this problem, and notes that “there are workarounds to mitigate the effects of these vulnerabilities.”
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