The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; and tools for verifying that the DNS server is operating correctly. A denial of service flaw was found in the libdns library. A remote attacker could use this flaw to send a specially-crafted DNS query to named that, when processed, would cause named to use an excessive amount of memory, or possibly crash. Note: This update disables the syntax checking of NAPTR resource records. This update also fixes the following bug: * Previously, rebuilding the bind-dyndb-ldap source RPM failed with a "/usr/include/dns/view.h:76:21: error: dns/rrl.h: No such file or directory" error. All bind users are advised to upgrade to these updated packages, which contain patches to correct these issues. After installing the update, the BIND daemon will be restarted automatically.