USN-627-1: Dnsmasq vulnerability

22 July 2008

dnsmasq vulnerability

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

  • Ubuntu 8.04 LTS

Software Description

  • dnsmasq

Details

Dan Kaminsky discovered weaknesses in the DNS protocol as implemented by Dnsmasq. A remote attacker could exploit this to spoof DNS entries and poison DNS caches. Among other things, this could lead to misdirected email and web traffic.

Update instructions

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

Ubuntu 8.04 LTS
dnsmasq-base - 2.41-2ubuntu2.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system upgrade you need to restart Dnsmasq to effect the necessary changes.

References