Brad Spengler, the developer behind the Grsecurity project, has published an exploit for a vulnerability in the Tun interface in Linux kernel 2.6.30 and 2.6.18, used in Red Hat Enterprise Linux 5 (RHEL5), which can be exploited by attackers to obtain root privileges. Of particular interest is the fact that the exploit is even able to circumvent security extensions such as SELinux.

Create a build service using the Linux Kernel Virtual Machine (KVM) for better performance

Bugs are a fact of life in the technology world, and the Open Source community is no exception. What is exceptional, however, is the open way these vulnerabilities are handled, as the developers behind Mozilla's Firefox browser have aptly demonstrated.

The Luxembourg security specialists G-SEC have published details of a vulnerability in the majority of browsers which will either crash the browser or consume so much memory that it makes the computer virtually unusable. The trick is simple. Using JavaScript's DOM (Document Object Model), create a selection menu on the web page; a select element.

Every system designer has at one time in his or her professional career had to play the role of developer, sales person, and psychologist. The developer writes the code for the system, the sales person tries to sell it to management and the user community, and the psychologist tries to figure out why users don't buy into what they're selling.

With it being a while since we last compared many Linux distributions when it comes to their measurable desktop performance, we decided to run a new round of tests atop four of the most popular Linux distributions: OpenSuSE, Ubuntu, Fedora, and Mandriva.

There's plenty of competition for VMware in making virtualised data centres, despite its strong lead. Is now the time to switch to Hyper-V or XenServer, asks Cameron Sturdevant?