X.org X11 X Font Server build_range memory corruption

A vulnerability, which was classified as problematic, was found in ). Affected is the function build_range of the component X Font Server. Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at . In this case the pattern |12 01 03 00| is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 8987.