The Berkeley Internet Name Domain (BIND) is an implementation of the DomainName System (DNS) protocols. BIND includes a DNS server (named); a resolverlibrary (routines for applications to use when interfacing with DNS); andtools for verifying that the DNS server is operating correctly.A denial of service flaw was found in the way BIND followed DNSdelegations. A remote attacker could use a specially crafted zonecontaining a large number of referrals which, when looked up and processed,would cause named to use excessive amounts of memory or crash.(CVE-2014-8500)All bind97 users are advised to upgrade to these updated packages, whichcontain a backported patch to correct this issue. After installing theupdate, the BIND daemon (named) will be restarted automatically.