DoS vulnerability in Cisco Content Switch 11000 Series

According to an alert from Cisco, "The Cisco Content Service Switch (CSS) 11000 and 11500 series switches respond to certain DNS name server record requests with an error code and no Start of Authority (SOA) records, which can be negatively cached by some DNS name servers resulting in a potential denial-of-service attack for a particular domain name hosted by a CSS." For more, go to:
http://www.cisco.com/warp/public/707/cisco-sa-20030430-dns.shtml

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