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Red Hat Security Advisory 2012-0717-01

Red Hat Security Advisory 2012-0717-01
Posted Jun 8, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-0717-01 - The Berkeley Internet Name Domain is an implementation of the Domain Name System protocols. BIND includes a DNS server ; a resolver library ; 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.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2012-1033, CVE-2012-1667
SHA-256 | 76f8f2a481a57a62d41e34bca89aa66fd735798668ceb74046031882209f7cd3

Red Hat Security Advisory 2012-0717-01

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

Synopsis: Important: bind97 security update
Advisory ID: RHSA-2012:0717-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0717.html
Issue date: 2012-06-07
CVE Names: CVE-2012-1033 CVE-2012-1667
=====================================================================

1. Summary:

Updated bind97 packages that fix two security issues are now available for
Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, 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)

A flaw was found in the way BIND handled the updating of cached name server
(NS) resource records. A malicious owner of a DNS domain could use this
flaw to keep the domain resolvable by the BIND server even after the
delegation was removed from the parent DNS zone. With this update, BIND
limits the time-to-live of the replacement record to that of the
time-to-live of the record being replaced. (CVE-2012-1033)

Users of bind97 are advised to upgrade to these updated packages, which
correct these issues. 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/):

788650 - CVE-2012-1033 bind: deleted domain name resolving flaw
828078 - CVE-2012-1667 bind: handling of zero length rdata can cause named to terminate unexpectedly

6. Package List:

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/bind97-9.7.0-10.P2.el5_8.1.src.rpm

i386:
bind97-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.i386.rpm

x86_64:
bind97-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/bind97-9.7.0-10.P2.el5_8.1.src.rpm

i386:
bind97-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.i386.rpm

ia64:
bind97-9.7.0-10.P2.el5_8.1.ia64.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.ia64.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.ia64.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.ia64.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.ia64.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.ia64.rpm

ppc:
bind97-9.7.0-10.P2.el5_8.1.ppc.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.ppc.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.ppc.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.ppc64.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.ppc.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.ppc64.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.ppc.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.ppc64.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.ppc.rpm

s390x:
bind97-9.7.0-10.P2.el5_8.1.s390x.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.s390x.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.s390.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.s390x.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.s390.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.s390x.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.s390.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.s390x.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.s390x.rpm

x86_64:
bind97-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-chroot-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-debuginfo-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-devel-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.i386.rpm
bind97-libs-9.7.0-10.P2.el5_8.1.x86_64.rpm
bind97-utils-9.7.0-10.P2.el5_8.1.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-2012-1033.html
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-2012-1033
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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