This indicates an attack attempt to exploit a Memory Corruption vulnerability in Oracle's Java.
The vulnerability is due to an insufficient input validation error on a parameter of ShortComponentRaster method. An attacker can exploit this by tricking an unsuspecting user into visiting a malicious webpage and execute arbitrary code within the context of the application.
Oracle Java Runtime Environment (JRE) 5.0 Update 45 and prior
Oracle Java Runtime Environment (JRE) 6 Update 45 and prior
Oracle Java Runtime Environment (JRE) 7 Update 21 and prior
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply patch available from the website.