bind, caching security update

CentOS Errata and Security Advisory CESA-2012:1123

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain
Name System (DNS) protocols. BIND includes a DNS server (named); a resolver
library (routines for applications to use when interfacing with DNS); and
tools for verifying that the DNS server is operating correctly.

An uninitialized data structure use flaw was found in BIND when DNSSEC
validation was enabled. A remote attacker able to send a large number of
queries to a DNSSEC validating BIND resolver could use this flaw to cause
it to exit unexpectedly with an assertion failure. (CVE-2012-3817)

Users of bind are advised to upgrade to these updated packages, which
correct this issue. After installing the update, the BIND daemon (named)
will be restarted automatically.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2012-July/080933.html
https://lists.centos.org/pipermail/centos-announce/2012-July/080934.html

Affected packages:
bind
bind-chroot
bind-devel
bind-libbind-devel
bind-libs
bind-sdb
bind-utils
caching-nameserver

Upstream details at:
https://access.redhat.com/errata/RHSA-2012:1123