The remote host is missing an update to py2play announced via advisory DSA 856-1. Arc Riley discovered that py2play, a peer-to-peer network game engine, is able to execute arbitrary code received from the p2p game network it is connected to without any security checks. The old stable distribution (woody) does not contain py2play packages.

For the stable distribution (sarge) this problem has been fixed in version 0.1.7-1sarge1. For the unstable distribution (sid) this problem has been fixed in version 0.1.8-1. We recommend that you upgrade your py2play package. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20856-1