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Category:   Application (Generic)  >   BIND Vendors:   ISC (Internet Software Consortium)
(Red Hat Issues Fix) BIND DNAME Response Processing Bug Lets Remote Users Cause the Target Service to Crash
SecurityTracker Alert ID:  1037395
SecurityTracker URL:  http://securitytracker.com/id/1037395
CVE Reference:   CVE-2016-8864   (Links to External Site)
Date:  Dec 6 2016
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 9.0.x - 9.8.x, 9.9.0 - 9.9.9-P3, 9.9.3-S1 - 9.9.9-S5, 9.10.0 - 9.10.4-P3, 9.11.0
Description:   A vulnerability was reported in BIND. A remote user can cause the target service to crash.

A remote user can return a recursive response containing a specially crafted DNAME answer to trigger a flaw in 'db.c' or 'resolver.c' and cause the target resolver to crash.

Tony Finch (University of Cambridge), Marco Davids (SIDN Labs), and others reported this vulnerability.

Impact:   A remote user can cause the target service to crash.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2016-2871.html

Vendor URL:  rhn.redhat.com/errata/RHSA-2016-2871.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  6.2, 6.4, 6.5, 6.6, 6.7

Message History:   This archive entry is a follow-up to the message listed below.
Nov 1 2016 BIND DNAME Response Processing Bug Lets Remote Users Cause the Target Service to Crash



 Source Message Contents

Subject:  [RHSA-2016:2871-01] Important: bind security update

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: bind security update
Advisory ID:       RHSA-2016:2871-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2016-2871.html
Issue date:        2016-12-06
CVE Names:         CVE-2016-8864 
=====================================================================

1. Summary:

An update for bind is now available for Red Hat Enterprise Linux 6.2
Advanced Update Support, Red Hat Enterprise Linux 6.4 Advanced Update
Support, Red Hat Enterprise Linux 6.5 Advanced Update Support, Red Hat
Enterprise Linux 6.5 Telco Extended Update Support, Red Hat Enterprise
Linux 6.6 Advanced Update Support, Red Hat Enterprise Linux 6.6 Telco
Extended Update Support, and Red Hat Enterprise Linux 6.7 Extended Update
Support.

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 HPC Node EUS (v. 6.7) - x86_64
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) - x86_64
Red Hat Enterprise Linux Server AUS (v. 6.2) - x86_64
Red Hat Enterprise Linux Server AUS (v. 6.4) - x86_64
Red Hat Enterprise Linux Server AUS (v. 6.5) - x86_64
Red Hat Enterprise Linux Server AUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server EUS (v. 6.7) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.2) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.4) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.5) - x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 6.7) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 6.5) - x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 6.6) - x86_64
Red Hat Enterprise Linux Server TUS (v. 6.5) - x86_64
Red Hat Enterprise Linux Server TUS (v. 6.6) - 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 responses
containing a DNAME answer. A remote attacker could use this flaw to make
named exit unexpectedly with an assertion failure via a specially crafted
DNS response. (CVE-2016-8864)

Red Hat would like to thank ISC for reporting this issue. Upstream
acknowledges Tony Finch (University of Cambridge) and Marco Davids (SIDN
Labs) as the original reporters.

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/):

1389652 - CVE-2016-8864 bind: assertion failure while handling responses containing a DNAME answer

6. Package List:

Red Hat Enterprise Linux HPC Node EUS (v. 6.7):

Source:
bind-9.8.2-0.37.rc1.el6_7.9.src.rpm

x86_64:
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-libs-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-libs-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-utils-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7):

x86_64:
bind-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-chroot-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-devel-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-devel-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-sdb-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm

Red Hat Enterprise Linux Server AUS (v. 6.2):

Source:
bind-9.7.3-8.P3.el6_2.6.src.rpm

x86_64:
bind-9.7.3-8.P3.el6_2.6.x86_64.rpm
bind-chroot-9.7.3-8.P3.el6_2.6.x86_64.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.6.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.6.x86_64.rpm
bind-libs-9.7.3-8.P3.el6_2.6.i686.rpm
bind-libs-9.7.3-8.P3.el6_2.6.x86_64.rpm
bind-utils-9.7.3-8.P3.el6_2.6.x86_64.rpm

Red Hat Enterprise Linux Server AUS (v. 6.4):

Source:
bind-9.8.2-0.17.rc1.el6_4.10.src.rpm

x86_64:
bind-9.8.2-0.17.rc1.el6_4.10.x86_64.rpm
bind-chroot-9.8.2-0.17.rc1.el6_4.10.x86_64.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6_4.10.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6_4.10.x86_64.rpm
bind-libs-9.8.2-0.17.rc1.el6_4.10.i686.rpm
bind-libs-9.8.2-0.17.rc1.el6_4.10.x86_64.rpm
bind-utils-9.8.2-0.17.rc1.el6_4.10.x86_64.rpm

Red Hat Enterprise Linux Server AUS (v. 6.5):

Source:
bind-9.8.2-0.23.rc1.el6_5.5.src.rpm

x86_64:
bind-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-chroot-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-debuginfo-9.8.2-0.23.rc1.el6_5.5.i686.rpm
bind-debuginfo-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-libs-9.8.2-0.23.rc1.el6_5.5.i686.rpm
bind-libs-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-utils-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm

Red Hat Enterprise Linux Server TUS (v. 6.5):

Source:
bind-9.8.2-0.23.rc1.el6_5.5.src.rpm

x86_64:
bind-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-chroot-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-debuginfo-9.8.2-0.23.rc1.el6_5.5.i686.rpm
bind-debuginfo-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-libs-9.8.2-0.23.rc1.el6_5.5.i686.rpm
bind-libs-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-utils-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm

Red Hat Enterprise Linux Server AUS (v. 6.6):

Source:
bind-9.8.2-0.30.rc1.el6_6.7.src.rpm

x86_64:
bind-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-chroot-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-debuginfo-9.8.2-0.30.rc1.el6_6.7.i686.rpm
bind-debuginfo-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-libs-9.8.2-0.30.rc1.el6_6.7.i686.rpm
bind-libs-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-utils-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm

Red Hat Enterprise Linux Server TUS (v. 6.6):

Source:
bind-9.8.2-0.30.rc1.el6_6.7.src.rpm

x86_64:
bind-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-chroot-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-debuginfo-9.8.2-0.30.rc1.el6_6.7.i686.rpm
bind-debuginfo-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-libs-9.8.2-0.30.rc1.el6_6.7.i686.rpm
bind-libs-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-utils-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm

Red Hat Enterprise Linux Server EUS (v. 6.7):

Source:
bind-9.8.2-0.37.rc1.el6_7.9.src.rpm

i386:
bind-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-chroot-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-libs-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-utils-9.8.2-0.37.rc1.el6_7.9.i686.rpm

ppc64:
bind-9.8.2-0.37.rc1.el6_7.9.ppc64.rpm
bind-chroot-9.8.2-0.37.rc1.el6_7.9.ppc64.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.ppc.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.ppc64.rpm
bind-libs-9.8.2-0.37.rc1.el6_7.9.ppc.rpm
bind-libs-9.8.2-0.37.rc1.el6_7.9.ppc64.rpm
bind-utils-9.8.2-0.37.rc1.el6_7.9.ppc64.rpm

s390x:
bind-9.8.2-0.37.rc1.el6_7.9.s390x.rpm
bind-chroot-9.8.2-0.37.rc1.el6_7.9.s390x.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.s390.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.s390x.rpm
bind-libs-9.8.2-0.37.rc1.el6_7.9.s390.rpm
bind-libs-9.8.2-0.37.rc1.el6_7.9.s390x.rpm
bind-utils-9.8.2-0.37.rc1.el6_7.9.s390x.rpm

x86_64:
bind-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-chroot-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-libs-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-libs-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-utils-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 6.2):

Source:
bind-9.7.3-8.P3.el6_2.6.src.rpm

x86_64:
bind-debuginfo-9.7.3-8.P3.el6_2.6.i686.rpm
bind-debuginfo-9.7.3-8.P3.el6_2.6.x86_64.rpm
bind-devel-9.7.3-8.P3.el6_2.6.i686.rpm
bind-devel-9.7.3-8.P3.el6_2.6.x86_64.rpm
bind-sdb-9.7.3-8.P3.el6_2.6.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 6.4):

Source:
bind-9.8.2-0.17.rc1.el6_4.10.src.rpm

x86_64:
bind-debuginfo-9.8.2-0.17.rc1.el6_4.10.i686.rpm
bind-debuginfo-9.8.2-0.17.rc1.el6_4.10.x86_64.rpm
bind-devel-9.8.2-0.17.rc1.el6_4.10.i686.rpm
bind-devel-9.8.2-0.17.rc1.el6_4.10.x86_64.rpm
bind-sdb-9.8.2-0.17.rc1.el6_4.10.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 6.5):

Source:
bind-9.8.2-0.23.rc1.el6_5.5.src.rpm

x86_64:
bind-debuginfo-9.8.2-0.23.rc1.el6_5.5.i686.rpm
bind-debuginfo-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-devel-9.8.2-0.23.rc1.el6_5.5.i686.rpm
bind-devel-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-sdb-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm

Red Hat Enterprise Linux Server Optional TUS (v. 6.5):

Source:
bind-9.8.2-0.23.rc1.el6_5.5.src.rpm

x86_64:
bind-debuginfo-9.8.2-0.23.rc1.el6_5.5.i686.rpm
bind-debuginfo-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-devel-9.8.2-0.23.rc1.el6_5.5.i686.rpm
bind-devel-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm
bind-sdb-9.8.2-0.23.rc1.el6_5.5.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 6.6):

x86_64:
bind-debuginfo-9.8.2-0.30.rc1.el6_6.7.i686.rpm
bind-debuginfo-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-devel-9.8.2-0.30.rc1.el6_6.7.i686.rpm
bind-devel-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-sdb-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm

Red Hat Enterprise Linux Server Optional TUS (v. 6.6):

x86_64:
bind-debuginfo-9.8.2-0.30.rc1.el6_6.7.i686.rpm
bind-debuginfo-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-devel-9.8.2-0.30.rc1.el6_6.7.i686.rpm
bind-devel-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm
bind-sdb-9.8.2-0.30.rc1.el6_6.7.x86_64.rpm

Red Hat Enterprise Linux Server Optional EUS (v. 6.7):

i386:
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-devel-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-sdb-9.8.2-0.37.rc1.el6_7.9.i686.rpm

ppc64:
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.ppc.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.ppc64.rpm
bind-devel-9.8.2-0.37.rc1.el6_7.9.ppc.rpm
bind-devel-9.8.2-0.37.rc1.el6_7.9.ppc64.rpm
bind-sdb-9.8.2-0.37.rc1.el6_7.9.ppc64.rpm

s390x:
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.s390.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.s390x.rpm
bind-devel-9.8.2-0.37.rc1.el6_7.9.s390.rpm
bind-devel-9.8.2-0.37.rc1.el6_7.9.s390x.rpm
bind-sdb-9.8.2-0.37.rc1.el6_7.9.s390x.rpm

x86_64:
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-debuginfo-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-devel-9.8.2-0.37.rc1.el6_7.9.i686.rpm
bind-devel-9.8.2-0.37.rc1.el6_7.9.x86_64.rpm
bind-sdb-9.8.2-0.37.rc1.el6_7.9.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-2016-8864
https://access.redhat.com/security/updates/classification/#important
https://kb.isc.org/article/AA-01434

8. Contact:

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

Copyright 2016 Red Hat, Inc.
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