The remote host is missing an update to vlc announced via advisory DSA 2211-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202211-1

Ricardo Narvaja discovered that missing input sanitising in VLC, a multimedia player and streamer, could lead to the execution of arbitrary code if a user is tricked into opening a malformed media file. This update also provides updated packages for oldstable (lenny) for vulnerabilities, which have already been addressed in Debian stable (squeeze), either during the freeze or in DSA-2159. (CVE-2010-0522, CVE-2010-1441, CVE-2010-1442, CVE-2011-0531) For the oldstable distribution (lenny), this problem has been fixed in version 0.8.6.h-4+lenny3. For the stable distribution (squeeze), this problem has been fixed in version 1.1.3-1squeeze4. For the unstable distribution (sid), this problem has been fixed in version 1.1.8-1. We recommend that you upgrade your vlc packages.