The remote host is missing an update to pdns announced via advisory DSA 1211-1. It was discovered that malformed TCP packets may lead to denial of service and possibly the execution of arbitrary code if the PowerDNS nameserver acts as a recursive nameserver.

For the stable distribution (sarge) this problem has been fixed in version 2.9.17-13sarge3. For the upcoming stable distribution (etch) this problem has been fixed in version 3.1.4-1 of pdns-recursor. For the unstable distribution (sid) this problem has been fixed in version 3.1.4-1 of pdns-recursor. We recommend that you upgrade your PowerDNS packages. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201211-1