Ubuntu has released security updates to address vulnerabilities in Apache, NSS, squid and util-linux. Exploitation of these vulnerabilities may allow an attacker to take control of affected system.
Users and administrators are encouraged to review Ubuntu Security Advisories USN-6730-1, USN-6729-1, USN-6727-2, USN-6728-2 and USN-6719-2 and apply necessary updates.