USN-3956-2: Bind vulnerability

bind9 vulnerability

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

Ubuntu 14.04 ESM
Ubuntu 12.04 ESM

Summary

Bind could be made to consume resources if it received specially crafted
network traffic.

Software Description

bind9 – Internet Domain Name Server

Details

USN-3956-1 fixed a vulnerability in Bind. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Bind incorrectly handled limiting the number of
simultaneous TCP clients. A remote attacker could possibly use this issue
to cause Bind to consume resources, leading to a denial of service.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04 ESM: bind9 – 1:9.9.5.dfsg-3ubuntu0.19+esm1
Ubuntu 12.04 ESM: bind9 – 1:9.8.1.dfsg.P1-4ubuntu0.28

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.

References

Source: USN-3956-2: Bind vulnerability

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