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Ubuntu Security Notice USN-2503-1
February 18, 2015

bind9 vulnerability

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

• Ubuntu 14.10
• 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:

Jan-Piet Mens discovered that Bind incorrectly handled Trust Anchor
Management. 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 14.10:
bind9 1:9.9.5.dfsg-4.3ubuntu0.2

Ubuntu 14.04 LTS:
bind9 1:9.9.5.dfsg-3ubuntu0.2

Ubuntu 12.04 LTS:
bind9 1:9.8.1.dfsg.P1-4ubuntu0.10

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

References:
http://www.ubuntu.com/usn/usn-2503-1
CVE-2015-1349

Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-4.3ubuntu0.2
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.2
https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.10

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