The remote host is missing an update to ffmpeg-debian announced via advisory DSA 2165-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202165-1

Several vulnerabilities have been discovered in FFmpeg coders, which are used by by MPlayer and other applications. CVE-2010-3429 Cesar Bernardini and Felipe Andres Manzano reported an arbitrary offset dereference vulnerability in the libavcodec, in particular in the flic file format parser. A specific flic file may exploit this vulnerability and execute arbitrary code. Mplayer is also affected by this problem, as well as other software that use this library. CVE-2010-4704 Greg Maxwell discovered an integer overflow the Vorbis decoder in FFmpeg. A specific ogg file may exploit this vulnerability and execute arbitrary code. CVE-2010-4705 A potential integer overflow has been discovered in the Vorbis decoder in FFmpeg. This upload also fixes an incomplete patch from DSA-2000-1. Michael Gilbert noticed that there was remaining vulnerabilities, which may cause a denial of service and potentially execution of arbitrary code. For the oldstable distribution (lenny), this problem has been fixed in version 0.svn20080206-18+lenny3. We recommend that you upgrade your ffmpeg-debian packages.