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Red Hat Enterprise Linux 6 RHSA-2013:0550-01 Moderate: Bind DoS Threat

Calendar Feb 21, 2013 • User Avatar LinuxSecurity Advisories
5 - 10 min read
Redhat Large Esm H500
Topics%20covered

Topics Covered

security advisory security issue Red Hat Enterprise Linux DoS threat enhancement bind update rate limiting
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 [More...] 
====================================================================                   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://access.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/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:

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:

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:

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:

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:

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:

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:

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:

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://access.redhat.com/security/cve/CVE-2012-5689
https://access.redhat.com/security/updates/classification#moderate

8. Contact:

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

Copyright 2013 Red Hat, Inc.

Red Hat Enterprise Linux 6 RHSA-2013:0550-01 Moderate: Bind DoS Threat

red hat
Calendar Grey February 21, 2013
Dist Redhat Esm H88
Debian addresses vulnerabilities in wget with patches and improvements. Upgrade recommended for all supported Debian versions.
Updated bind packages that fix one security issue and add one enhancement are now available for Red Hat Enterprise Linux 6

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/articles/11258

Summary

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.

Topics%20covered

Topics Covered

security advisory security issue Red Hat Enterprise Linux DoS threat enhancement bind update rate limiting

References

https://access.redhat.com/security/cve/CVE-2012-5689 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
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:
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:
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


Read the Full Advisory


Advisory ID: RHSA-2013:0550-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:0550.html
Issue date: 2013-02-21

Topic

Updated bind packages that fix one security issue and add one enhancementare now available for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat Enterprise Linux DoS threat enhancement bind update rate limiting

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

Bugs Fixed

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

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