[nsp-sec] BIND advisory

jose nazario jose at arbor.net
Tue Nov 24 19:53:55 EST 2009


noticed this on twitter, didn't see it mentioned here:

	https://www.isc.org/node/504

BIND 9 Cache Update From Additional Section
CVE:	CVE-2009-4022

> 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) at the same time as requesting DNSSEC records (DO).

affects 9.0.x, 9.1.x, 9.2.x, 9.3.x, 9.4.0 -> 9.4.3-P3, 9.5.0, 9.5.1,  
9.5.2, 9.6.0, 9.6.1-P1.

-- jose




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