Ubuntu Security Notice 3119-1 - 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.
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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:
https://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