Ubuntu fixed a Linux bug that could have let an attacker cause a denial of service or execute arbitrary code with a TCP payload this week.

Linux users who frequent the Ubuntu forums may want to change their passwords following news that an attacker was able to breach the service and its two million users. Jane Silber, Chief Executive Officer at Canonical,the company that maintains the service, acknowledged on Friday that a known SQL injection vulnerability in Forumrunner, an add-on in the Ubuntu...