The remote host is missing an update to atari800 announced via advisory DSA 359-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20359-1

Steve Kemp discovered multiple buffer overflows in atari800, an Atari emulator. In order to directly access graphics hardware, one of the affected programs is setuid root. A local attacker could exploit this vulnerability to gain root privileges. For the current stable distribution (woody) this problem has been fixed in version 1.2.2-1woody2. For the unstable distribution (sid) this problem will be fixed soon. Refer to Debian bug #203707. We recommend that you update your atari800 package.