BIND 9.7.1 and 9.7.1-P1, when a recursive validating server has a trust anchor that is configured statically or via DNSSEC Lookaside Validation (DLV), allows remote attackers to cause a denial of service (infinite loop) via a query for an RRSIG record whose answer is not in the cache, which causes BIND to repeatedly send RRSIG queries to the authoritative servers.
http://www.vupen.com/english/advisories/2010/1884
http://www.securitytracker.com/id?1024217
http://www.securityfocus.com/bid/41730
http://www.kb.cert.org/vuls/id/211905
http://www.isc.org/software/bind/advisories/cve-2010-0213
http://secunia.com/advisories/40709
http://secunia.com/advisories/40652
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00001.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-July/044445.html