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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.0459
                           Bind vulnerabilities
                             17 February 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           bind9
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-3135  

Reference:         ESB-2017.0454
                   ESB-2017.0379

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3201-1

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==========================================================================
Ubuntu Security Notice USN-3201-1
February 16, 2017

bind9 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- - Ubuntu 16.10
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS
- - Ubuntu 12.04 LTS

Summary:

Bind could be made to crash if it received specially crafted network
traffic.

Software Description:
- - bind9: Internet Domain Name Server

Details:

It was discovered that Bind incorrectly handled rewriting certain query
responses when using both DNS64 and RPZ. A remote attacker could possibly
use this issue to cause Bind to crash, resulting in a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.10:
  bind9                           1:9.10.3.dfsg.P4-10.1ubuntu1.3

Ubuntu 16.04 LTS:
  bind9                           1:9.10.3.dfsg.P4-8ubuntu1.5

Ubuntu 14.04 LTS:
  bind9                           1:9.9.5.dfsg-3ubuntu0.13

Ubuntu 12.04 LTS:
  bind9                           1:9.8.1.dfsg.P1-4ubuntu0.21

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-3201-1
  CVE-2017-3135

Package Information:
  https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-10.1ubuntu1.3
  https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-8ubuntu1.5
  https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.13
  https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.21

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===========================================================================
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===========================================================================
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