Vulnerability in the Java VM component of Oracle Database Server. Supported versions that are affected are 11.2.0.4, 12.1.0.2, 12.2.0.1, 18c and 19c. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java VM. While the vulnerability is in Java VM, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java VM accessible data. CVSS 3.0 Base Score 6.8 (Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N).
http://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html