Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle
Java SE (subcomponent: Scripting). Supported versions that are affected are
Java SE: 8u182 and 11; Java SE Embedded: 8u181; JRockit: R28.3.19.
Difficult to exploit vulnerability allows unauthenticated attacker with
network access via multiple protocols to compromise Java SE, Java SE
Embedded, JRockit. While the vulnerability is in Java SE, Java SE Embedded,
JRockit, attacks may significantly impact additional products. Successful
attacks of this vulnerability can result in takeover of Java SE, Java SE
Embedded, JRockit. Note: This vulnerability applies to Java deployments,
typically in clients running sandboxed Java Web Start applications or
sandboxed Java applets (in Java SE 8), that load and run untrusted code
(e.g. code that comes from the internet) and rely on the Java sandbox for
security. This vulnerability can also be exploited by using APIs in the
specified Component, e.g. through a web service which supplies data to the
APIs. CVSS 3.0 Base Score 9.0 (Confidentiality, Integrity and Availability
impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).

Krzysztof Szafrański discovered that the Scripting component
did not properly restrict access to the scripting engine in some
situations. An attacker could use this to specially construct an
untrusted Java application or applet that could escape sandbox
restrictions.