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Category:   Application (Generic)  >   BIND Vendors:   ISC (Internet Software Consortium)
(Red Hat Issues Fix) BIND Multiple Flaws Let Remote Users Cause the Target named Service to Stop Processing
SecurityTracker Alert ID:  1037601
SecurityTracker URL:  http://securitytracker.com/id/1037601
CVE Reference:   CVE-2016-9147   (Links to External Site)
Date:  Jan 16 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 9.4.0 - 9.6-ESV-R11-W1, 9.8.5 - 9.8.8, 9.9.3 - 9.9.9-P4, 9.9.9-S1 - 9.9.9-S6, 9.10.0 - 9.10.4-P4, 9.11.0 - 9.11.0-P1
Description:   Several vulnerabilities were reported in BIND. A remote user can cause the target service to crash.

A remote user can return a specially crafted query response to the target recursive server in response to an RTYPE ANY query to cause the target 'named' service to stop processing [CVE-2016-9131].

A remote user can return a specially crafted query response that contains DNSSEC-related RRsets that are inconsistent with other RRsets in the same query response to trigger an assertion failure and cause target 'named' service to stop processing [CVE-2016-9147]. Versions 9.9.9-P4, 9.9.9-S6, 9.10.4-P4, and 9.11.0-P1 are affected.

A remote user can return a specially crafted query response that contains a DS resource record to trigger an assertion failure and cause target 'named' service to stop processing [CVE-2016-9444].

A remote user can send a specially crafted query to the target system that uses the nxdomain-redirect feature to cover a zone for which it provides authoritative service to cause the target 'named' service to stop processing [CVE-2016-9778].

Impact:   A remote user can cause the target 'named' service to stop processing.
Solution:   Red Hat has issued a fix for CVE-2016-9147 for bind97.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2017-0064.html

Vendor URL:  rhn.redhat.com/errata/RHSA-2017-0064.html (Links to External Site)
Cause:   State error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  5

Message History:   This archive entry is a follow-up to the message listed below.
Jan 12 2017 BIND Multiple Flaws Let Remote Users Cause the Target named Service to Stop Processing



 Source Message Contents

Subject:  [RHSA-2017:0064-01] Important: bind97 security update

-----BEGIN PGP SIGNED MESSAGE-----
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: bind97 security update
Advisory ID:       RHSA-2017:0064-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2017-0064.html
Issue date:        2017-01-16
CVE Names:         CVE-2016-9147 
=====================================================================

1. Summary:

An update for bind97 is now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

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

Security Fix(es):

* A denial of service flaw was found in the way BIND handled a query
response containing inconsistent DNSSEC information. A remote attacker
could use this flaw to make named exit unexpectedly with an assertion
failure via a specially crafted DNS response. (CVE-2016-9147)

Red Hat would like to thank ISC for reporting this issue.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the update, the BIND daemon (named) will be restarted
automatically.

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

1411367 - CVE-2016-9147 bind: assertion failure while handling a query response containing inconsistent DNSSEC information

6. Package List:

Red Hat Enterprise Linux Desktop Workstation (v. 5 client):

Source:
bind97-9.7.0-21.P2.el5_11.10.src.rpm

i386:
bind97-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-chroot-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-utils-9.7.0-21.P2.el5_11.10.i386.rpm

x86_64:
bind97-9.7.0-21.P2.el5_11.10.x86_64.rpm
bind97-chroot-9.7.0-21.P2.el5_11.10.x86_64.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.x86_64.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.x86_64.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.x86_64.rpm
bind97-utils-9.7.0-21.P2.el5_11.10.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
bind97-9.7.0-21.P2.el5_11.10.src.rpm

i386:
bind97-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-chroot-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-utils-9.7.0-21.P2.el5_11.10.i386.rpm

ia64:
bind97-9.7.0-21.P2.el5_11.10.ia64.rpm
bind97-chroot-9.7.0-21.P2.el5_11.10.ia64.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.ia64.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.ia64.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.ia64.rpm
bind97-utils-9.7.0-21.P2.el5_11.10.ia64.rpm

ppc:
bind97-9.7.0-21.P2.el5_11.10.ppc.rpm
bind97-chroot-9.7.0-21.P2.el5_11.10.ppc.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.ppc.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.ppc64.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.ppc.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.ppc64.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.ppc.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.ppc64.rpm
bind97-utils-9.7.0-21.P2.el5_11.10.ppc.rpm

s390x:
bind97-9.7.0-21.P2.el5_11.10.s390x.rpm
bind97-chroot-9.7.0-21.P2.el5_11.10.s390x.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.s390.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.s390x.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.s390.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.s390x.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.s390.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.s390x.rpm
bind97-utils-9.7.0-21.P2.el5_11.10.s390x.rpm

x86_64:
bind97-9.7.0-21.P2.el5_11.10.x86_64.rpm
bind97-chroot-9.7.0-21.P2.el5_11.10.x86_64.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.10.x86_64.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-devel-9.7.0-21.P2.el5_11.10.x86_64.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.i386.rpm
bind97-libs-9.7.0-21.P2.el5_11.10.x86_64.rpm
bind97-utils-9.7.0-21.P2.el5_11.10.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/

7. References:

https://access.redhat.com/security/cve/CVE-2016-9147
https://access.redhat.com/security/updates/classification/#important
https://kb.isc.org/article/AA-01440

8. Contact:

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

Copyright 2017 Red Hat, Inc.
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