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Ubuntu 16.04 LTS USN-3734-1 Critical: OpenJDK 8 DoS Memory Issue

ubuntu
Calendar Grey August 10, 2018
Dist Ubuntu Esm H88
A significant flaw in OpenJDK on Ubuntu 16.04 might result in high memory consumption, potentially triggering a denial of service scenario.
Java applications could be made to use excessive memory.

Summary

Java applications could be made to use excessive memory.

Software Description:

- 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).

Topics%20covered

Topics Covered

security advisory critical doS memory issue ubuntu openjdk

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

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.

References

https://ubuntu.com/security/notices/USN-3734-1

CVE-2018-2952

Severity
critical
Lowest
Low
Medium
High
Critical

August 10, 2018

Topics%20covered

Topics Covered

security advisory critical doS memory issue ubuntu openjdk

Package Information

https://launchpad.net/ubuntu/+source/openjdk-8/8u181-b13-0ubuntu0.16.04.1

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