==========================================================================
Ubuntu Security Notice USN-2728-1
September 02, 2015
bind9 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– 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:
Hanno Böck discovered that Bind incorrectly handled certain malformed keys
when configured to perform DNSSEC validation. A remote attacker could use
this issue with specially crafted zone data 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 15.04:
bind9 1:9.9.5.dfsg-9ubuntu0.3
Ubuntu 14.04 LTS:
bind9 1:9.9.5.dfsg-3ubuntu0.5
Ubuntu 12.04 LTS:
bind9 1:9.8.1.dfsg.P1-4ubuntu0.13
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2728-1
CVE-2015-5722
Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-9ubuntu0.3
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.5
https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.13
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