This indicates an attack attempt against an Integer Overflow vulnerability in the libmodplug library of VLC Media Player.
The vulnerability is due to an input invalidation error when the vulnerable software handles a maliciously crafted ABC file. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted ABC file.
libmodplug project libmodplug 0.8.8.4 and prior
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are unaware of any vendor supplied patch for this issue.