The free Debian Linux distribution is looking for Security staff for its "testing" branch.

Following security fixes for Firefox, Camino & Co, the developers of the Thunderbird email client have now taken steps to remove known vulnerabilities, closing down five security holes, one of which was and classified as critical.

Recent kernel versions back to the older kernel 2.6.17 may contain a vulnerability that can be exploited by local attackers.

The Mozilla Foundation has removed at least ten vulnerabilities from its browser, three of which were classified as critical by the developers.

Vulnerabilities have been discovered in two major media players for Linux. A Xine-Lib vulnerability also affects Mplayer.

Linux distributor Red Hat has released version 8 of the Red Hat Directory Server.

The makers of Asterisk, the Open Source phone system, have removed a bug that allowed denial of service attacks under certain circumstances.