USN-3734-1: OpenJDK 8 vulnerability

10 August 2018

openjdk-8 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 16.04 LTS


Java applications could be made to use excessive memory.

Software Description

  • 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 LTS
openjdk-8-jdk - 8u181-b13-0ubuntu0.16.04.1
openjdk-8-jre - 8u181-b13-0ubuntu0.16.04.1
openjdk-8-jre-headless - 8u181-b13-0ubuntu0.16.04.1
openjdk-8-jre-jamvm - 8u181-b13-0ubuntu0.16.04.1

To update your system, please follow these instructions:

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.