The remote host is missing an update to python2.5 announced via advisory DSA 1620-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201620-1

Several vulnerabilities have been discovered in the interpreter for the Python language. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2007-2052 Piotr Engelking discovered that the strxfrm() function of the locale module miscalculates the length of an internal buffer, which may result in a minor information disclosure. CVE-2007-4965 It was discovered that several integer overflows in the imageop module may lead to the execution of arbitrary code, if a user is tricked into processing malformed images. This issue is also tracked as CVE-2008-1679 due to an initially incomplete patch. CVE-2008-1721 Justin Ferguson discovered that a buffer overflow in the zlib module may lead to the execution of arbitrary code. CVE-2008-1887 Justin Ferguson discovered that insufficient input validation in PyString_FromStringAndSize() may lead to the execution of arbitrary code. For the stable distribution (etch), these problems have been fixed in version 2.5-5+etch1. For the unstable distribution (sid), these problems have been fixed in version 2.5.2-3. We recommend that you upgrade your python2.5 packages.