Issued:
2008-07-08
Updated:
2008-07-10

RHSA-2008:0533 - Important: bind security update

Synopsis

Important: bind security update

Type/Severity

Security Advisory Important

Topic

Updated bind packages that help mitigate DNS spoofing attacks are now available.

This update has been rated as having important security impact by the Red Hat Security Response Team.

[Updated 10th July 2008] We have updated the Enterprise Linux 5 packages in this advisory. The default and sample caching-nameserver configuration files have been updated so that they do not specify a fixed query-source port. Administrators wishing to take advantage of randomized UDP source ports should check their configuration file to ensure they have not specified fixed query-source ports.

Description

ISC BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols.

The DNS protocol protects against spoofing attacks by requiring an attacker to predict both the DNS transaction ID and UDP source port of a request. In recent years, a number of papers have found problems with DNS implementations which make it easier for an attacker to perform DNS cache-poisoning attacks.

Previous versions of BIND did not use randomized UDP source ports. If an attacker was able to predict the random DNS transaction ID, this could make DNS cache-poisoning attacks easier. In order to provide more resilience, BIND has been updated to use a range of random UDP source ports. (CVE-2008-1447)

Note: This errata also updates SELinux policy on Red Hat Enterprise Linux 4 and 5 to allow BIND to use random UDP source ports.

Users of BIND are advised to upgrade to these updated packages, which contain a backported patch to add this functionality.

Red Hat would like to thank Dan Kaminsky for reporting this issue.

Solution

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

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.http://kbase.redhat.com/faq/FAQ_58_10188

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Extended Update Support5.2x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support5.2ia64
Red Hat Enterprise Linux for x86_64 - Extended Update Support5.2i386
Red Hat Enterprise Linux for x86_64 - Extended Update Support4.6x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support4.6ia64
Red Hat Enterprise Linux for x86_64 - Extended Update Support4.6i386
Red Hat Enterprise Linux for Power, big endian5ppc
Red Hat Enterprise Linux for Power, big endian4ppc
Red Hat Enterprise Linux for Power, big endian3ppc
Red Hat Enterprise Linux for Power, big endian - Extended Update Support5.2ppc
Red Hat Enterprise Linux for Power, big endian - Extended Update Support4.6ppc
Red Hat Enterprise Linux for IBM z Systems5s390x
Red Hat Enterprise Linux for IBM z Systems4s390x
Red Hat Enterprise Linux for IBM z Systems4s390
Red Hat Enterprise Linux for IBM z Systems3s390x
Red Hat Enterprise Linux for IBM z Systems3s390
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support5.2s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support4.6s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support4.6s390
Red Hat Enterprise Linux Workstation5x86_64
Red Hat Enterprise Linux Workstation5i386
Red Hat Enterprise Linux Workstation4x86_64
Red Hat Enterprise Linux Workstation4ia64
Red Hat Enterprise Linux Workstation4i386
Red Hat Enterprise Linux Workstation3x86_64
Red Hat Enterprise Linux Workstation3ia64
Red Hat Enterprise Linux Workstation3i386
Red Hat Enterprise Linux Workstation2ia64
Red Hat Enterprise Linux Workstation2i386
Red Hat Enterprise Linux Server5x86_64
Red Hat Enterprise Linux Server5ia64
Red Hat Enterprise Linux Server5i386
Red Hat Enterprise Linux Server4x86_64
Red Hat Enterprise Linux Server4ia64
Red Hat Enterprise Linux Server4i386
Red Hat Enterprise Linux Server3x86_64
Red Hat Enterprise Linux Server3ia64
Red Hat Enterprise Linux Server3i386
Red Hat Enterprise Linux Server2ia64
Red Hat Enterprise Linux Server2i386
Red Hat Enterprise Linux Server from RHUI5x86_64
Red Hat Enterprise Linux Server from RHUI5i386
Red Hat Enterprise Linux Desktop5x86_64
Red Hat Enterprise Linux Desktop5i386
Red Hat Enterprise Linux Desktop4x86_64
Red Hat Enterprise Linux Desktop4i386
Red Hat Enterprise Linux Desktop3x86_64
Red Hat Enterprise Linux Desktop3i386

Updated Packages

  • bind-sdb-9.3.4-6.0.2.P1.el5_2.i386.rpm
  • bind-9.2.4-28.0.1.el4.x86_64.rpm
  • bind-utils-9.2.4-28.0.1.el4.i386.rpm
  • bind-libs-9.3.4-6.0.1.P1.el5_2.ppc.rpm
  • bind-utils-9.3.4-6.0.1.P1.el5_2.s390x.rpm
  • bind-utils-9.2.4-28.0.1.el4.s390x.rpm
  • caching-nameserver-9.3.4-6.0.1.P1.el5_2.x86_64.rpm
  • bind-9.2.4-22.el3.s390x.rpm
  • bind-devel-9.3.4-6.0.1.P1.el5_2.ppc.rpm
  • bind-chroot-9.2.4-22.el3.s390x.rpm
  • bind-sdb-9.3.4-6.0.1.P1.el5_2.ia64.rpm
  • bind-devel-9.3.4-6.0.1.P1.el5_2.ia64.rpm
  • bind-9.3.4-6.0.1.P1.el5_2.ppc.rpm
  • bind-utils-9.2.4-22.el3.ia64.rpm
  • caching-nameserver-9.3.4-6.0.1.P1.el5_2.ppc.rpm
  • bind-utils-9.2.4-22.el3.ppc.rpm
  • bind-devel-9.3.4-6.0.1.P1.el5_2.s390.rpm
  • bind-utils-9.3.4-6.0.2.P1.el5_2.x86_64.rpm
  • bind-devel-9.2.4-22.el3.ia64.rpm
  • bind-chroot-9.3.4-6.0.1.P1.el5_2.s390x.rpm
  • bind-9.2.4-28.0.1.el4.ppc.rpm
  • bind-9.2.4-28.0.1.el4.s390.rpm
  • bind-chroot-9.2.4-22.el3.s390.rpm
  • bind-9.2.4-22.el3.ia64.rpm
  • bind-libs-9.3.4-6.0.2.P1.el5_2.s390x.rpm
  • bind-chroot-9.2.4-28.0.1.el4.ppc.rpm
  • caching-nameserver-9.3.4-6.0.1.P1.el5_2.i386.rpm
  • caching-nameserver-9.3.4-6.0.1.P1.el5_2.ia64.rpm
  • bind-libs-9.3.4-6.0.1.P1.el5_2.i386.rpm
  • bind-utils-9.2.4-28.0.1.el4.ia64.rpm
  • bind-libbind-devel-9.3.4-6.0.1.P1.el5_2.s390x.rpm
  • bind-9.3.4-6.0.1.P1.el5_2.s390x.rpm
  • bind-devel-9.3.4-6.0.1.P1.el5_2.i386.rpm
  • bind-utils-9.3.4-6.0.2.P1.el5_2.i386.rpm
  • bind-sdb-9.3.4-6.0.2.P1.el5_2.ppc.rpm
  • bind-9.2.4-28.0.1.el4.i386.rpm
  • selinux-policy-strict-2.4.6-137.1.el5_2.noarch.rpm
  • caching-nameserver-9.3.4-6.0.2.P1.el5_2.i386.rpm
  • bind-devel-9.3.4-6.0.2.P1.el5_2.ppc.rpm
  • bind-9.3.4-6.0.1.P1.el5_2.x86_64.rpm
  • bind-utils-9.2.4-28.0.1.el4.s390.rpm
  • bind-libs-9.3.4-6.0.1.P1.el5_2.s390x.rpm
  • bind-chroot-9.2.4-28.0.1.el4.x86_64.rpm
  • bind-libs-9.2.4-28.0.1.el4.s390.rpm
  • bind-libs-9.2.4-22.el3.s390.rpm
  • caching-nameserver-9.3.4-6.0.2.P1.el5_2.x86_64.rpm
  • bind-libbind-devel-9.3.4-6.0.1.P1.el5_2.ppc.rpm
  • bind-utils-9.3.4-6.0.1.P1.el5_2.i386.rpm
  • bind-libs-9.2.4-28.0.1.el4.x86_64.rpm
  • bind-sdb-9.3.4-6.0.2.P1.el5_2.ia64.rpm
  • bind-chroot-9.2.4-22.el3.x86_64.rpm
  • bind-libs-9.2.4-22.el3.i386.rpm
  • bind-devel-9.2.4-28.0.1.el4.s390.rpm
  • bind-libbind-devel-9.3.4-6.0.1.P1.el5_2.ppc64.rpm
  • bind-libs-9.2.4-28.0.1.el4.ppc.rpm
  • bind-libs-9.3.4-6.0.2.P1.el5_2.ppc64.rpm
  • bind-9.2.4-22.el3.ppc.rpm
  • selinux-policy-targeted-sources-1.17.30-2.150.el4.noarch.rpm
  • bind-utils-9.2.4-28.0.1.el4.x86_64.rpm
  • bind-libbind-devel-9.3.4-6.0.2.P1.el5_2.s390x.rpm
  • bind-devel-9.3.4-6.0.2.P1.el5_2.x86_64.rpm
  • bind-9.2.4-22.el3.x86_64.rpm
  • selinux-policy-devel-2.4.6-137.1.el5_2.noarch.rpm
  • bind-libbind-devel-9.3.4-6.0.2.P1.el5_2.ppc.rpm
  • bind-9.3.4-6.0.2.P1.el5_2.ppc.rpm
  • caching-nameserver-9.3.4-6.0.2.P1.el5_2.s390x.rpm
  • bind-chroot-9.3.4-6.0.1.P1.el5_2.x86_64.rpm
  • bind-sdb-9.3.4-6.0.1.P1.el5_2.s390x.rpm
  • bind-9.3.4-6.0.2.P1.el5_2.i386.rpm
  • bind-sdb-9.3.4-6.0.2.P1.el5_2.x86_64.rpm
  • bind-utils-9.2.4-22.el3.x86_64.rpm
  • bind-utils-9.3.4-6.0.1.P1.el5_2.ppc.rpm
  • bind-devel-9.2.4-22.el3.s390x.rpm
  • bind-devel-9.3.4-6.0.1.P1.el5_2.ppc64.rpm
  • bind-9.3.4-6.0.1.P1.el5_2.i386.rpm
  • bind-chroot-9.2.4-28.0.1.el4.ia64.rpm
  • bind-devel-9.3.4-6.0.2.P1.el5_2.i386.rpm
  • bind-utils-9.2.1-10.el2.ia64.rpm
  • bind-utils-9.2.4-22.el3.i386.rpm
  • bind-libbind-devel-9.3.4-6.0.1.P1.el5_2.i386.rpm
  • bind-chroot-9.3.4-6.0.2.P1.el5_2.ppc.rpm
  • bind-9.2.1-10.el2.ia64.rpm
  • selinux-policy-mls-2.4.6-137.1.el5_2.noarch.rpm
  • bind-chroot-9.2.4-22.el3.i386.rpm
  • bind-devel-9.2.1-10.el2.ia64.rpm
  • bind-libs-9.2.4-28.0.1.el4.ppc64.rpm
  • bind-utils-9.2.1-10.el2.i386.rpm
  • bind-libs-9.2.4-22.el3.ia64.rpm
  • bind-chroot-9.2.4-22.el3.ia64.rpm
  • bind-devel-9.2.4-22.el3.ppc.rpm
  • selinux-policy-targeted-2.4.6-137.1.el5_2.noarch.rpm
  • bind-9.2.4-28.0.1.el4.ia64.rpm
  • bind-libbind-devel-9.3.4-6.0.1.P1.el5_2.ia64.rpm
  • bind-chroot-9.3.4-6.0.1.P1.el5_2.i386.rpm
  • bind-libs-9.3.4-6.0.1.P1.el5_2.ia64.rpm
  • selinux-policy-2.4.6-137.1.el5_2.noarch.rpm
  • bind-devel-9.2.4-22.el3.x86_64.rpm
  • bind-utils-9.2.4-28.0.1.el4.ppc.rpm
  • bind-devel-9.2.4-28.0.1.el4.ia64.rpm
  • bind-9.2.4-22.el3.i386.rpm
  • bind-chroot-9.3.4-6.0.2.P1.el5_2.i386.rpm
  • bind-9.2.1-10.el2.i386.rpm
  • bind-utils-9.3.4-6.0.1.P1.el5_2.x86_64.rpm
  • bind-libs-9.3.4-6.0.2.P1.el5_2.s390.rpm
  • bind-chroot-9.3.4-6.0.2.P1.el5_2.s390x.rpm
  • bind-sdb-9.3.4-6.0.1.P1.el5_2.x86_64.rpm
  • bind-9.3.4-6.0.2.P1.el5_2.ia64.rpm
  • bind-devel-9.2.4-28.0.1.el4.x86_64.rpm
  • bind-libbind-devel-9.3.4-6.0.2.P1.el5_2.x86_64.rpm
  • bind-chroot-9.2.4-22.el3.ppc.rpm
  • bind-devel-9.3.4-6.0.1.P1.el5_2.s390x.rpm
  • bind-utils-9.3.4-6.0.2.P1.el5_2.s390x.rpm
  • bind-utils-9.2.4-22.el3.s390.rpm
  • bind-utils-9.3.4-6.0.1.P1.el5_2.ia64.rpm
  • bind-chroot-9.3.4-6.0.1.P1.el5_2.ia64.rpm
  • bind-devel-9.2.4-28.0.1.el4.ppc.rpm
  • bind-9.3.4-6.0.1.P1.el5_2.ia64.rpm
  • bind-libs-9.2.4-22.el3.s390x.rpm
  • bind-chroot-9.2.4-28.0.1.el4.i386.rpm
  • bind-9.3.4-6.0.2.P1.el5_2.s390x.rpm
  • bind-devel-9.2.4-28.0.1.el4.i386.rpm
  • bind-libs-9.2.4-28.0.1.el4.s390x.rpm
  • bind-libbind-devel-9.3.4-6.0.1.P1.el5_2.x86_64.rpm
  • bind-chroot-9.3.4-6.0.1.P1.el5_2.ppc.rpm
  • bind-libbind-devel-9.3.4-6.0.2.P1.el5_2.s390.rpm
  • bind-devel-9.2.4-28.0.1.el4.s390x.rpm
  • bind-libs-9.3.4-6.0.1.P1.el5_2.x86_64.rpm
  • bind-9.2.4-22.el3.s390.rpm
  • bind-devel-9.3.4-6.0.2.P1.el5_2.s390x.rpm
  • bind-chroot-9.2.4-28.0.1.el4.s390x.rpm
  • bind-utils-9.3.4-6.0.2.P1.el5_2.ppc.rpm
  • bind-libs-9.2.4-22.el3.ppc.rpm
  • bind-utils-9.3.4-6.0.2.P1.el5_2.ia64.rpm
  • caching-nameserver-9.3.4-6.0.1.P1.el5_2.s390x.rpm
  • bind-libs-9.2.4-28.0.1.el4.i386.rpm
  • bind-sdb-9.3.4-6.0.1.P1.el5_2.ppc.rpm
  • bind-libs-9.3.4-6.0.1.P1.el5_2.ppc64.rpm
  • bind-libbind-devel-9.3.4-6.0.2.P1.el5_2.ppc64.rpm
  • caching-nameserver-9.3.4-6.0.2.P1.el5_2.ia64.rpm
  • bind-devel-9.2.4-22.el3.i386.rpm
  • bind-libbind-devel-9.3.4-6.0.2.P1.el5_2.i386.rpm
  • bind-devel-9.3.4-6.0.2.P1.el5_2.s390.rpm
  • bind-9.2.4-28.0.1.el4.s390x.rpm
  • bind-devel-9.3.4-6.0.2.P1.el5_2.ia64.rpm
  • bind-chroot-9.3.4-6.0.2.P1.el5_2.x86_64.rpm
  • caching-nameserver-9.3.4-6.0.2.P1.el5_2.ppc.rpm
  • bind-libbind-devel-9.3.4-6.0.1.P1.el5_2.s390.rpm
  • bind-libs-9.3.4-6.0.2.P1.el5_2.i386.rpm
  • bind-libs-9.3.4-6.0.2.P1.el5_2.ppc.rpm
  • bind-libs-9.2.4-28.0.1.el4.ia64.rpm
  • bind-libbind-devel-9.3.4-6.0.2.P1.el5_2.ia64.rpm
  • bind-libs-9.3.4-6.0.2.P1.el5_2.x86_64.rpm
  • bind-chroot-9.2.4-28.0.1.el4.s390.rpm
  • bind-9.3.4-6.0.2.P1.el5_2.x86_64.rpm
  • bind-devel-9.3.4-6.0.2.P1.el5_2.ppc64.rpm
  • bind-libs-9.3.4-6.0.2.P1.el5_2.ia64.rpm
  • bind-chroot-9.3.4-6.0.2.P1.el5_2.ia64.rpm
  • bind-devel-9.3.4-6.0.1.P1.el5_2.x86_64.rpm
  • bind-sdb-9.3.4-6.0.2.P1.el5_2.s390x.rpm
  • selinux-policy-targeted-1.17.30-2.150.el4.noarch.rpm
  • bind-libs-9.2.4-22.el3.x86_64.rpm
  • bind-utils-9.2.4-22.el3.s390x.rpm
  • bind-libs-9.3.4-6.0.1.P1.el5_2.s390.rpm
  • bind-devel-9.2.4-22.el3.s390.rpm
  • bind-devel-9.2.1-10.el2.i386.rpm
  • bind-sdb-9.3.4-6.0.1.P1.el5_2.i386.rpm

Fixes

CVEs

References

Additional information