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AUSCERT External Security Bulletin Redistribution
ESB-2013.0273
Moderate: bind security and enhancement update
22 February 2013
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: bind
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 6
Red Hat Enterprise Linux WS/Desktop 6
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2012-5689
Reference: ESB-2013.0109
Original Bulletin:
https://rhn.redhat.com/errata/RHSA-2013-0550.html
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Red Hat Security Advisory
Synopsis: Moderate: bind security and enhancement update
Advisory ID: RHSA-2013:0550-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0550.html
Issue date: 2013-02-21
CVE Names: CVE-2012-5689
=====================================================================
1. Summary:
Updated bind packages that fix one security issue and add one enhancement
are now available for Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having moderate
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 Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - 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.
DNS64 is used to automatically generate DNS records so IPv6 based clients
can access IPv4 systems through a NAT64 server.
A flaw was found in the DNS64 implementation in BIND when using Response
Policy Zones (RPZ). If a remote attacker sent a specially-crafted query to
a named server that is using RPZ rewrite rules, named could exit
unexpectedly with an assertion failure. Note that DNS64 support is not
enabled by default. (CVE-2012-5689)
This update also adds the following enhancement:
* Previously, it was impossible to configure the the maximum number of
responses sent per second to one client. This allowed remote attackers to
conduct traffic amplification attacks using DNS queries with spoofed source
IP addresses. With this update, it is possible to use the new "rate-limit"
configuration option in named.conf and configure the maximum number of
queries which the server responds to. Refer to the BIND documentation for
more details about the "rate-limit" option. (BZ#906312)
All bind users are advised to upgrade to these updated packages, which
contain patches to correct this issue and add this enhancement. 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/):
903417 - CVE-2012-5689 bind: denial of service when processing queries and with both DNS64 and RPZ enabled
906312 - bind: Backport Response Rate Limiting (DNS RRL) patch into Red Hat Enterprise Linux 6
6. Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/bind-9.8.2-0.17.rc1.el6.3.src.rpm
i386:
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-utils-9.8.2-0.17.rc1.el6.3.i686.rpm
x86_64:
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-utils-9.8.2-0.17.rc1.el6.3.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/bind-9.8.2-0.17.rc1.el6.3.src.rpm
i386:
bind-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-chroot-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-sdb-9.8.2-0.17.rc1.el6.3.i686.rpm
x86_64:
bind-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-chroot-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-sdb-9.8.2-0.17.rc1.el6.3.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/bind-9.8.2-0.17.rc1.el6.3.src.rpm
x86_64:
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-utils-9.8.2-0.17.rc1.el6.3.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/bind-9.8.2-0.17.rc1.el6.3.src.rpm
x86_64:
bind-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-chroot-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-sdb-9.8.2-0.17.rc1.el6.3.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/bind-9.8.2-0.17.rc1.el6.3.src.rpm
i386:
bind-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-chroot-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-utils-9.8.2-0.17.rc1.el6.3.i686.rpm
ppc64:
bind-9.8.2-0.17.rc1.el6.3.ppc64.rpm
bind-chroot-9.8.2-0.17.rc1.el6.3.ppc64.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.ppc.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.ppc64.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.ppc.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.ppc64.rpm
bind-utils-9.8.2-0.17.rc1.el6.3.ppc64.rpm
s390x:
bind-9.8.2-0.17.rc1.el6.3.s390x.rpm
bind-chroot-9.8.2-0.17.rc1.el6.3.s390x.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.s390.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.s390x.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.s390.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.s390x.rpm
bind-utils-9.8.2-0.17.rc1.el6.3.s390x.rpm
x86_64:
bind-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-chroot-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-utils-9.8.2-0.17.rc1.el6.3.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/bind-9.8.2-0.17.rc1.el6.3.src.rpm
i386:
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-sdb-9.8.2-0.17.rc1.el6.3.i686.rpm
ppc64:
bind-debuginfo-9.8.2-0.17.rc1.el6.3.ppc.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.ppc64.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.ppc.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.ppc64.rpm
bind-sdb-9.8.2-0.17.rc1.el6.3.ppc64.rpm
s390x:
bind-debuginfo-9.8.2-0.17.rc1.el6.3.s390.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.s390x.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.s390.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.s390x.rpm
bind-sdb-9.8.2-0.17.rc1.el6.3.s390x.rpm
x86_64:
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-sdb-9.8.2-0.17.rc1.el6.3.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/bind-9.8.2-0.17.rc1.el6.3.src.rpm
i386:
bind-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-chroot-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-utils-9.8.2-0.17.rc1.el6.3.i686.rpm
x86_64:
bind-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-chroot-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-libs-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-utils-9.8.2-0.17.rc1.el6.3.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/bind-9.8.2-0.17.rc1.el6.3.src.rpm
i386:
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-sdb-9.8.2-0.17.rc1.el6.3.i686.rpm
x86_64:
bind-debuginfo-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.i686.rpm
bind-devel-9.8.2-0.17.rc1.el6.3.x86_64.rpm
bind-sdb-9.8.2-0.17.rc1.el6.3.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-2012-5689.html
https://access.redhat.com/security/updates/classification/#moderate
http://www.isc.org/software/bind/advisories/cve-2012-5689
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2013 Red Hat, Inc.
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