Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE
(subcomponent: Hotspot). Supported versions that are affected are Java SE:
6u161, 7u151, 8u144 and 9; Java SE Embedded: 8u144. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
multiple protocols to compromise Java SE, Java SE Embedded. Successful
attacks require human interaction from a person other than the attacker and
while the vulnerability is in Java SE, Java SE Embedded, attacks may
significantly impact additional products. Successful attacks of this
vulnerability can result in takeover of Java SE, Java SE Embedded. Note:
This vulnerability applies to Java deployments, typically in clients
running sandboxed Java Web Start applications or sandboxed Java applets,
that load and run untrusted code (e.g., code that comes from the internet)
and rely on the Java sandbox for security. This vulnerability does not
apply to Java deployments, typically in servers, that load and run only
trusted code (e.g., code installed by an administrator). CVSS 3.0 Base
Score 9.6 (Confidentiality, Integrity and Availability impacts). CVSS
Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H).

It was discovered that the Hotspot component of OpenJDK did not
properly perform loader checks when handling the invokespecial
JVM instruction. An attacker could use this to specially construct
an untrusted Java application or applet that could escape sandbox
restrictions.