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.It was discovered that named did not invalidate previously cached SIGrecords when adding an NCACHE record for the same entry to the cache. Aremote attacker allowed to send recursive DNS queries to named could usethis flaw to crash named. (CVE-2010-3613)All BIND users are advised to upgrade to these updated packages, whichcontain a backported patch to resolve this issue. After installing theupdate, the BIND daemon (named) will be restarted automatically.