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Ubuntu Security Notice USN-3119-1
November 01, 2016

bind9 vulnerability
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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:

Tony Finch and Marco Davids discovered that Bind incorrectly handled
certain responses containing a DNAME answer. 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.P4-10.1ubuntu1.1

Ubuntu 16.04 LTS:
bind9 1:9.10.3.dfsg.P4-8ubuntu1.2

Ubuntu 14.04 LTS:
bind9 1:9.9.5.dfsg-3ubuntu0.10

Ubuntu 12.04 LTS:
bind9 1:9.8.1.dfsg.P1-4ubuntu0.19

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

References:
http://www.ubuntu.com/usn/usn-3119-1
CVE-2016-8864

Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-10.1ubuntu1.1
https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-8ubuntu1.2
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.10
https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.19

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