============================================================================ Ubuntu Security Notice USN-2593-1 May 04, 2015 dnsmasq vulnerability ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 15.04 - Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS Summary: Dnsmasq could be made to crash or expose sensitive information if it received specially crafted network traffic. Software Description: - dnsmasq: Small caching DNS proxy and DHCP/TFTP server Details: Nick Sampanis discovered that Dnsmasq incorrectly handled certain malformed DNS requests. A remote attacker could use this issue to cause Dnsmasq to crash, resulting in a denial of service, or possibly obtain sensitive information. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 15.04: dnsmasq-base 2.72-3ubuntu0.1 Ubuntu 14.10: dnsmasq-base 2.71-1ubuntu0.1 Ubuntu 14.04 LTS: dnsmasq-base 2.68-1ubuntu0.1 Ubuntu 12.04 LTS: dnsmasq 2.59-4ubuntu0.2 dnsmasq-base 2.59-4ubuntu0.2 dnsmasq-utils 2.59-4ubuntu0.2 After a standard system update you need to reboot your computer to make all the necessary changes. References: http://www.ubuntu.com/usn/usn-2593-1 CVE-2015-3294 Package Information: https://launchpad.net/ubuntu/+source/dnsmasq/2.72-3ubuntu0.1 https://launchpad.net/ubuntu/+source/dnsmasq/2.71-1ubuntu0.1 https://launchpad.net/ubuntu/+source/dnsmasq/2.68-1ubuntu0.1 https://launchpad.net/ubuntu/+source/dnsmasq/2.59-4ubuntu0.2