[RHSA-2016:1945-01] Important: bind97 security update

[news 28]

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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://rhn.redhat.com/errata/RHSA-2016-1945.html

Issue date: 2016-09-28

CVE Names: CVE-2016-2776

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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/article/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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