1. Ubuntu Security Notices
  2. USN-3734-1

USN-3734-1: OpenJDK 8 vulnerability

Publication date

10 August 2018

Overview

Java applications could be made to use excessive memory.

Releases

Packages

  • openjdk-8 - Open Source Java implementation

Details

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).

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

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.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
16.04 xenial 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

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›