USN-3734-1: OpenJDK 8 vulnerability

10 August 2018

Java applications could be made to use excessive memory.



  • openjdk-8 - Open Source Java implementation


It was discovered that the PatternSyntaxException class in OpenJDK
did not properly validate arguments passed to it. An attacker could
use this to possibly construct a class that caused a denial of service
(excessive memory consumption).

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any Java
applications or applets to make all the necessary changes.


Related notices

  • USN-3735-1: openjdk-7-jre-headless, openjdk-7, openjdk-7-jdk, openjdk-7-jre, icedtea-7-jre-jamvm, openjdk-7-jre-lib
  • USN-3747-1: openjdk-11-jre, openjdk-lts, openjdk-11-jre-zero, openjdk-11-jre-headless