bind security update

CentOS Errata and Security Advisory CESA-2007:0740-01

ISC BIND (Berkeley Internet Name Domain) is an implementation of the DNS
(Domain Name System) protocols.

A flaw was found in the way BIND generates outbound DNS query ids. If an
attacker is able to acquire a finite set of query IDs, it becomes possible
to accurately predict future query IDs. Future query ID prediction may
allow an attacker to conduct a DNS cache poisoning attack, which can result
in the DNS server returning incorrect client query data. (CVE-2007-2926)

Users of BIND are advised to upgrade to these updated packages, which
contain backported patches to correct this issue.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2007-July/076239.html

Affected packages:
bind
bind-devel
bind-utils