Hello All, As per ISC security bulletin *CVE-2009-4022* There is a problem with BIND 9 Cache Update From Additional Section
*Problem Description:* A Nameserver with DNSSEC validation enabled may incorrectly add records to its cache from the additional section of responses received during resolution of a recursive client query.This behavior only occurs when processing client queries with checking disabled (CD).It may occur both when requesting,and not when requesting,DNSSEC records(DO).If the nameserver is authoritative-only this will not occur. We have some business requirement where we need to reproduce the problem. Could anyone advice a test case which I may use or direct me to some website which could be useful for this purpose. Any help will be appreciated. Many Thanks, Supriya Samanta
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