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

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

Synopsis:          Important: bind97 security update
Advisory ID:       RHSA-2016:1945-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2016:1945.html
Issue date:        2016-09-28
CVE Names:         CVE-2016-2776 
====================================================================
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 constructed a response
to a query that met certain criteria. A remote attacker could use this flaw
to make named exit unexpectedly with an assertion failure via a specially
crafted DNS request packet. (CVE-2016-2776)

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/):

1378380 - CVE-2016-2776 bind: assertion failure in buffer.c while building responses to a specifically constructed request

6. Package List:

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

Source:
bind97-9.7.0-21.P2.el5_11.7.src.rpm

i386:
bind97-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-chroot-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-utils-9.7.0-21.P2.el5_11.7.i386.rpm

x86_64:
bind97-9.7.0-21.P2.el5_11.7.x86_64.rpm
bind97-chroot-9.7.0-21.P2.el5_11.7.x86_64.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.x86_64.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.x86_64.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.x86_64.rpm
bind97-utils-9.7.0-21.P2.el5_11.7.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
bind97-9.7.0-21.P2.el5_11.7.src.rpm

i386:
bind97-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-chroot-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-utils-9.7.0-21.P2.el5_11.7.i386.rpm

ia64:
bind97-9.7.0-21.P2.el5_11.7.ia64.rpm
bind97-chroot-9.7.0-21.P2.el5_11.7.ia64.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.ia64.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.ia64.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.ia64.rpm
bind97-utils-9.7.0-21.P2.el5_11.7.ia64.rpm

ppc:
bind97-9.7.0-21.P2.el5_11.7.ppc.rpm
bind97-chroot-9.7.0-21.P2.el5_11.7.ppc.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.ppc.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.ppc64.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.ppc.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.ppc64.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.ppc.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.ppc64.rpm
bind97-utils-9.7.0-21.P2.el5_11.7.ppc.rpm

s390x:
bind97-9.7.0-21.P2.el5_11.7.s390x.rpm
bind97-chroot-9.7.0-21.P2.el5_11.7.s390x.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.s390.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.s390x.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.s390.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.s390x.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.s390.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.s390x.rpm
bind97-utils-9.7.0-21.P2.el5_11.7.s390x.rpm

x86_64:
bind97-9.7.0-21.P2.el5_11.7.x86_64.rpm
bind97-chroot-9.7.0-21.P2.el5_11.7.x86_64.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-debuginfo-9.7.0-21.P2.el5_11.7.x86_64.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-devel-9.7.0-21.P2.el5_11.7.x86_64.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.i386.rpm
bind97-libs-9.7.0-21.P2.el5_11.7.x86_64.rpm
bind97-utils-9.7.0-21.P2.el5_11.7.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-2016-2776
https://access.redhat.com/security/updates/classification/#important
https://kb.isc.org/docs/aa-01419

8. Contact:

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

Copyright 2016 Red Hat, Inc.
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