vlc -- arbitrary pointer dereference vulnerability

oCERT reports:

The stable VLC version suffers from an arbitrary pointer
dereference vulnerability.
The vulnerability affects the 3GP file format parser,
insufficient restrictions on a writable buffer can be
exploited to execute arbitrary code via the heap memory.
A specific 3GP file can be crafted to trigger the
vulnerability.
Credit: vulnerability reported by Loren Maggiore of
Trail of Bits.