Ubuntu Security Notice USN-2837-1
15th December, 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 version:
- 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
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.