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Red Hat Enterprise Linux 5 and 6 RHSA-2011:0845-01 Important: Bind DoS

Calendar May 31, 2011 • User Avatar LinuxSecurity Advisories
7 - 13 min read
Redhat Large Esm H500
Topics%20covered

Topics Covered

security advisory DoS Red Hat Enterprise Linux important bind issue
Updated bind and bind97 packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6. The Red Hat Security Response Team has rated this update as having [More...] 
====================================================================                   Red Hat Security Advisory

Synopsis:          Important: bind security update
Advisory ID:       RHSA-2011:0845-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2011:0845.html
Issue date:        2011-05-31
CVE Names:         CVE-2011-1910 
====================================================================
1. Summary:

Updated bind and bind97 packages that fix one security issue are now
available for Red Hat Enterprise Linux 5 and 6.

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:

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

An off-by-one flaw was found in the way BIND processed negative responses
with large resource record sets (RRSets). An attacker able to send
recursive queries to a BIND server that is configured as a caching
resolver could use this flaw to cause named to exit with an assertion
failure. (CVE-2011-1910)

All BIND users are advised to upgrade to these updated packages, which
resolve 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/kb/docs/DOC-11259

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

708301 - CVE-2011-1910 bind: Large RRSIG RRsets and Negative Caching can crash named

6. Package List:

RHEL Desktop Workstation (v. 5 client):

Source:

i386:
bind97-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-chroot-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-utils-9.7.0-6.P2.el5_6.2.i386.rpm

x86_64:
bind97-9.7.0-6.P2.el5_6.2.x86_64.rpm
bind97-chroot-9.7.0-6.P2.el5_6.2.x86_64.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.x86_64.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.x86_64.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.x86_64.rpm
bind97-utils-9.7.0-6.P2.el5_6.2.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:

i386:
bind97-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-chroot-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-utils-9.7.0-6.P2.el5_6.2.i386.rpm

ia64:
bind97-9.7.0-6.P2.el5_6.2.ia64.rpm
bind97-chroot-9.7.0-6.P2.el5_6.2.ia64.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.ia64.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.ia64.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.ia64.rpm
bind97-utils-9.7.0-6.P2.el5_6.2.ia64.rpm

ppc:
bind97-9.7.0-6.P2.el5_6.2.ppc.rpm
bind97-chroot-9.7.0-6.P2.el5_6.2.ppc.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.ppc.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.ppc64.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.ppc.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.ppc64.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.ppc.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.ppc64.rpm
bind97-utils-9.7.0-6.P2.el5_6.2.ppc.rpm

s390x:
bind97-9.7.0-6.P2.el5_6.2.s390x.rpm
bind97-chroot-9.7.0-6.P2.el5_6.2.s390x.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.s390.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.s390x.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.s390.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.s390x.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.s390.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.s390x.rpm
bind97-utils-9.7.0-6.P2.el5_6.2.s390x.rpm

x86_64:
bind97-9.7.0-6.P2.el5_6.2.x86_64.rpm
bind97-chroot-9.7.0-6.P2.el5_6.2.x86_64.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-debuginfo-9.7.0-6.P2.el5_6.2.x86_64.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-devel-9.7.0-6.P2.el5_6.2.x86_64.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.i386.rpm
bind97-libs-9.7.0-6.P2.el5_6.2.x86_64.rpm
bind97-utils-9.7.0-6.P2.el5_6.2.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:

i386:
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-libs-9.7.3-2.el6_1.P1.1.i686.rpm
bind-utils-9.7.3-2.el6_1.P1.1.i686.rpm

x86_64:
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-libs-9.7.3-2.el6_1.P1.1.i686.rpm
bind-libs-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-utils-9.7.3-2.el6_1.P1.1.x86_64.rpm

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

Source:

i386:
bind-9.7.3-2.el6_1.P1.1.i686.rpm
bind-chroot-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-devel-9.7.3-2.el6_1.P1.1.i686.rpm
bind-sdb-9.7.3-2.el6_1.P1.1.i686.rpm

x86_64:
bind-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-chroot-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-devel-9.7.3-2.el6_1.P1.1.i686.rpm
bind-devel-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-sdb-9.7.3-2.el6_1.P1.1.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:

x86_64:
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-libs-9.7.3-2.el6_1.P1.1.i686.rpm
bind-libs-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-utils-9.7.3-2.el6_1.P1.1.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:

x86_64:
bind-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-chroot-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-devel-9.7.3-2.el6_1.P1.1.i686.rpm
bind-devel-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-sdb-9.7.3-2.el6_1.P1.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:

i386:
bind-9.7.3-2.el6_1.P1.1.i686.rpm
bind-chroot-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-libs-9.7.3-2.el6_1.P1.1.i686.rpm
bind-utils-9.7.3-2.el6_1.P1.1.i686.rpm

ppc64:
bind-9.7.3-2.el6_1.P1.1.ppc64.rpm
bind-chroot-9.7.3-2.el6_1.P1.1.ppc64.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.ppc.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.ppc64.rpm
bind-libs-9.7.3-2.el6_1.P1.1.ppc.rpm
bind-libs-9.7.3-2.el6_1.P1.1.ppc64.rpm
bind-utils-9.7.3-2.el6_1.P1.1.ppc64.rpm

s390x:
bind-9.7.3-2.el6_1.P1.1.s390x.rpm
bind-chroot-9.7.3-2.el6_1.P1.1.s390x.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.s390.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.s390x.rpm
bind-libs-9.7.3-2.el6_1.P1.1.s390.rpm
bind-libs-9.7.3-2.el6_1.P1.1.s390x.rpm
bind-utils-9.7.3-2.el6_1.P1.1.s390x.rpm

x86_64:
bind-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-chroot-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-libs-9.7.3-2.el6_1.P1.1.i686.rpm
bind-libs-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-utils-9.7.3-2.el6_1.P1.1.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:

i386:
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-devel-9.7.3-2.el6_1.P1.1.i686.rpm
bind-sdb-9.7.3-2.el6_1.P1.1.i686.rpm

ppc64:
bind-debuginfo-9.7.3-2.el6_1.P1.1.ppc.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.ppc64.rpm
bind-devel-9.7.3-2.el6_1.P1.1.ppc.rpm
bind-devel-9.7.3-2.el6_1.P1.1.ppc64.rpm
bind-sdb-9.7.3-2.el6_1.P1.1.ppc64.rpm

s390x:
bind-debuginfo-9.7.3-2.el6_1.P1.1.s390.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.s390x.rpm
bind-devel-9.7.3-2.el6_1.P1.1.s390.rpm
bind-devel-9.7.3-2.el6_1.P1.1.s390x.rpm
bind-sdb-9.7.3-2.el6_1.P1.1.s390x.rpm

x86_64:
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-devel-9.7.3-2.el6_1.P1.1.i686.rpm
bind-devel-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-sdb-9.7.3-2.el6_1.P1.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

i386:
bind-9.7.3-2.el6_1.P1.1.i686.rpm
bind-chroot-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-libs-9.7.3-2.el6_1.P1.1.i686.rpm
bind-utils-9.7.3-2.el6_1.P1.1.i686.rpm

x86_64:
bind-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-chroot-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-libs-9.7.3-2.el6_1.P1.1.i686.rpm
bind-libs-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-utils-9.7.3-2.el6_1.P1.1.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:

i386:
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-devel-9.7.3-2.el6_1.P1.1.i686.rpm
bind-sdb-9.7.3-2.el6_1.P1.1.i686.rpm

x86_64:
bind-debuginfo-9.7.3-2.el6_1.P1.1.i686.rpm
bind-debuginfo-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-devel-9.7.3-2.el6_1.P1.1.i686.rpm
bind-devel-9.7.3-2.el6_1.P1.1.x86_64.rpm
bind-sdb-9.7.3-2.el6_1.P1.1.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://access.redhat.com/security/cve/CVE-2011-1910
https://access.redhat.com/security/updates/classification#important

8. Contact:

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

Copyright 2011 Red Hat, Inc.

Red Hat Enterprise Linux 5 and 6 RHSA-2011:0845-01 Important: Bind DoS

red hat
Calendar Grey May 31, 2011
Dist Redhat Esm H88
A crucial patch from Red Hat targets a bind vulnerability that could affect systems responsible for caching DNS requests.
Updated bind and bind97 packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 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/kb/docs/DOC-11259

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.
An off-by-one flaw was found in the way BIND processed negative responses with large resource record sets (RRSets). An attacker able to send recursive queries to a BIND server that is configured as a caching resolver could use this flaw to cause named to exit with an assertion failure. (CVE-2011-1910)
All BIND users are advised to upgrade to these updated packages, which resolve this issue. After installing the update, the BIND daemon (named) will be restarted automatically.

Topics%20covered

Topics Covered

security advisory DoS Red Hat Enterprise Linux important bind issue

References

https://access.redhat.com/security/cve/CVE-2011-1910 https://access.redhat.com/security/updates/classification#important

Package List

RHEL Desktop Workstation (v. 5 client):
Source:
i386: bind97-9.7.0-6.P2.el5_6.2.i386.rpm bind97-chroot-9.7.0-6.P2.el5_6.2.i386.rpm bind97-debuginfo-9.7.0-6.P2.el5_6.2.i386.rpm bind97-devel-9.7.0-6.P2.el5_6.2.i386.rpm bind97-libs-9.7.0-6.P2.el5_6.2.i386.rpm bind97-utils-9.7.0-6.P2.el5_6.2.i386.rpm
x86_64: bind97-9.7.0-6.P2.el5_6.2.x86_64.rpm bind97-chroot-9.7.0-6.P2.el5_6.2.x86_64.rpm bind97-debuginfo-9.7.0-6.P2.el5_6.2.i386.rpm bind97-debuginfo-9.7.0-6.P2.el5_6.2.x86_64.rpm bind97-devel-9.7.0-6.P2.el5_6.2.i386.rpm bind97-devel-9.7.0-6.P2.el5_6.2.x86_64.rpm bind97-libs-9.7.0-6.P2.el5_6.2.i386.rpm bind97-libs-9.7.0-6.P2.el5_6.2.x86_64.rpm bind97-utils-9.7.0-6.P2.el5_6.2.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: bind97-9.7.0-6.P2.el5_6.2.i386.rpm bind97-chroot-9.7.0-6.P2.el5_6.2.i386.rpm bind97-debuginfo-9.7.0-6.P2.el5_6.2.i386.rpm bind97-devel-9.7.0-6.P2.el5_6.2.i386.rpm bind97-libs-9.7.0-6.P2.el5_6.2.i386.rpm bind97-utils-9.7.0-6.P2.el5_6.2.i386.rpm
ia64: bind97-9.7.0-6.P2.el5_6.2.ia64.rpm bind97-chroot-9.7.0-6.P2.el5_6.2.ia64.rpm bind97-debuginfo-9.7.0-6.P2.el5_6.2.ia64.rpm bind97-devel-9.7.0-6.P2.el5_6.2.ia64.rpm bind97-libs-9.7.0-6.P2.el5_6.2.ia64.rpm bind97-utils-9.7.0-6.P2.el5_6.2.ia64.rpm
ppc: bind97-9.7.0-6.P2.el5_6.2.ppc.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2011:0845-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0845.html
Issue date: 2011-05-31

Topic

Updated bind and bind97 packages that fix one security issue are nowavailable for Red Hat Enterprise Linux 5 and 6.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory DoS Red Hat Enterprise Linux important bind issue

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

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

708301 - CVE-2011-1910 bind: Large RRSIG RRsets and Negative Caching can crash named

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