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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: bind security update
Advisory ID:       RHSA-2012:1110-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2012-1110.html
Issue date:        2012-07-23
CVE Names:         CVE-2012-1667 
=====================================================================

1. Summary:

Updated bind packages that fix one security issue are now available for
Red Hat Enterprise Linux 4 Extended Life Cycle Support.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (v. 4 ELS) - i386, ia64, x86_64
Red Hat Enterprise Linux ES (v. 4 ELS) - i386, x86_64

3. Description:

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.

A flaw was found in the way BIND handled zero length resource data records.
A malicious owner of a DNS domain could use this flaw to create
specially-crafted DNS resource records that would cause a recursive
resolver or secondary server to crash or, possibly, disclose portions of
its memory. (CVE-2012-1667)

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.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

5. Bugs fixed (http://bugzilla.redhat.com/):

828078 - CVE-2012-1667 bind: handling of zero length rdata can cause named to
 terminate unexpectedly

6. Package List:

Red Hat Enterprise Linux AS (v. 4 ELS):

Source:
bind-9.2.4-39.el4.src.rpm

i386:
bind-9.2.4-39.el4.i386.rpm
bind-chroot-9.2.4-39.el4.i386.rpm
bind-debuginfo-9.2.4-39.el4.i386.rpm
bind-devel-9.2.4-39.el4.i386.rpm
bind-libs-9.2.4-39.el4.i386.rpm
bind-utils-9.2.4-39.el4.i386.rpm

ia64:
bind-9.2.4-39.el4.ia64.rpm
bind-chroot-9.2.4-39.el4.ia64.rpm
bind-debuginfo-9.2.4-39.el4.i386.rpm
bind-debuginfo-9.2.4-39.el4.ia64.rpm
bind-devel-9.2.4-39.el4.ia64.rpm
bind-libs-9.2.4-39.el4.i386.rpm
bind-libs-9.2.4-39.el4.ia64.rpm
bind-utils-9.2.4-39.el4.ia64.rpm

x86_64:
bind-9.2.4-39.el4.x86_64.rpm
bind-chroot-9.2.4-39.el4.x86_64.rpm
bind-debuginfo-9.2.4-39.el4.i386.rpm
bind-debuginfo-9.2.4-39.el4.x86_64.rpm
bind-devel-9.2.4-39.el4.x86_64.rpm
bind-libs-9.2.4-39.el4.i386.rpm
bind-libs-9.2.4-39.el4.x86_64.rpm
bind-utils-9.2.4-39.el4.x86_64.rpm

Red Hat Enterprise Linux ES (v. 4 ELS):

Source:
bind-9.2.4-39.el4.src.rpm

i386:
bind-9.2.4-39.el4.i386.rpm
bind-chroot-9.2.4-39.el4.i386.rpm
bind-debuginfo-9.2.4-39.el4.i386.rpm
bind-devel-9.2.4-39.el4.i386.rpm
bind-libs-9.2.4-39.el4.i386.rpm
bind-utils-9.2.4-39.el4.i386.rpm

x86_64:
bind-9.2.4-39.el4.x86_64.rpm
bind-chroot-9.2.4-39.el4.x86_64.rpm
bind-debuginfo-9.2.4-39.el4.i386.rpm
bind-debuginfo-9.2.4-39.el4.x86_64.rpm
bind-devel-9.2.4-39.el4.x86_64.rpm
bind-libs-9.2.4-39.el4.i386.rpm
bind-libs-9.2.4-39.el4.x86_64.rpm
bind-utils-9.2.4-39.el4.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2012-1667.html
https://access.redhat.com/security/updates/classification/#important
http://www.isc.org/software/bind/advisories/cve-2012-1667

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2012 Red Hat, Inc.
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