This indicates an attack attempt to exploit a Buffer Overflow vulnerability in VideoLAN VLC media player.
The vulnerability is due to an error in the application while handling a malformed JSS file. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application.
VideoLAN VLC Media Player prior to 188.8.131.52
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply patch, available from the website.