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Ubuntu Security Notice USN-2837-1
December 15, 2015

bind9 vulnerability
==========================================================================

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

– Ubuntu 15.10
– Ubuntu 15.04
– 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 responses with malformed
class attributes. A remote attacker could 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 15.10:
bind9 1:9.9.5.dfsg-11ubuntu1.1

Ubuntu 15.04:
bind9 1:9.9.5.dfsg-9ubuntu0.4

Ubuntu 14.04 LTS:
bind9 1:9.9.5.dfsg-3ubuntu0.6

Ubuntu 12.04 LTS:
bind9 1:9.8.1.dfsg.P1-4ubuntu0.14

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

References:
http://www.ubuntu.com/usn/usn-2837-1
CVE-2015-8000

Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-11ubuntu1.1
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-9ubuntu0.4
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.6
https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.14

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