Simon Kilvington discovered that specially crafted PNG images can trigger
a heap overflow in libavcodec, the multimedia library of ffmpeg, which may
lead to the execution of arbitrary code.
The vlc media player links statically against libavcodec.
The old stable distribution (woody) isn’t affected by this problem.
For the stable distribution (sarge) this problem has been fixed in
version 0.8.1.svn20050314-1sarge1.
For the unstable distribution (sid) this problem has been fixed in
version 0.8.4.debian-2.
We recommend that you upgrade your vlc package.