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 flaw was discovered in the way BIND handled certain DNS queries, whichcaused it to cache an invalid record. A remote attacker could use thisflaw to send repeated queries for this invalid record, causing theresolvers to exit unexpectedly due to a failed assertion. (CVE-2011-4313)Users of bind97 are advised to upgrade to these updated packages, whichresolve this issue. After installing the update, the BIND daemon (named)will be restarted automatically.