Paul Szabo discovered that xterm, a terminal emulator for the X Window System, places arbitrary characters into the input buffer when displaying certain crafted escape sequences . As an additional precaution, this security update also disables font changing, user-defined keys, and X property changes through escape sequences. For the stable distribution , this problem has been fixed in version 222-1etch3. For the unstable distribution , this problem will be fixed soon. We recommend that you upgrade your xterm package.