Vulnerability in the Java SE component of Oracle Java SE (subcomponent: AWT). Supported versions that are affected are Java SE: 7u121 and 8u112. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE. 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 v3.0 Base Score 8.3 (Confidentiality, Integrity and Availability impacts).

It was discovered that the ECDSASignature class in the Libraries component of OpenJDK accepted signatures using non-canonical DER encoding. This could cause a Java application to accept signature in an incorrect format not accepted by other cryptographic tools.

It was discovered that the PNGImageReader in the javax.imageio package of the 2D component of OpenJDK performed parsing of iTXt and zTXt PNG image chunks even when ignoreMetadata was set to true. An attacker able to make a Java application parse a specially crafted PNG image could cause the application to consume an excessive amount of memory.