Oracle JRE Cryptographic Issues Vulnerability - CVE-2012-5373
Oracle Java SE 7 and earlier and OpenJDK 7 and earlier computes hash values without properly restricting the ability to trigger hash collisions predictably which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table as demonstrated by a universal multicollision attack against the MurmurHash3 algorithm a different vulnerability than CVE-2012-2739.