The remote host is missing an update to common-lisp-controller announced via advisory DSA 811-2. The bugfix for the problem mentioned below contained an error that caused third party programs to fail. The problem is corrected by this update. For completeness we're including the original advisory text: Francois-Rene Rideau discovered a bug in common-lisp-controller, a Common Lisp source and compiler manager, that allows a local user to compile malicious code into a cache directory which is executed by another user if that user has not used Common Lisp before. The old stable distribution (woody) is not affected by this problem.

For the stable distribution (sarge) this problem has been fixed in version 4.15sarge3. For the unstable distribution (sid) this problem has been fixed in version 4.18. We recommend that you upgrade your common-lisp-controller package. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20811-2