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Ubuntu 18.04 LTS USN-3949-1 Critical: OpenJDK 11 Memory Exposure

ubuntu
Calendar Grey April 16, 2019
Dist Ubuntu Esm H88
To fix the critical vulnerability in OpenJDK 11 on Ubuntu 18.04 LTS, update your system by following simple steps in the terminal for a secure setup
Java applets or applications could be made to expose sensitiveinformation.

Summary

Java applets or applications could be made to expose sensitive

information.

Software Description:

- openjdk-lts: Open Source Java implementation

Details:

It was discovered that a memory disclosure issue existed in the OpenJDK

Library subsystem. An attacker could use this to expose sensitive

information and possibly bypass Java sandbox restrictions. (CVE-2019-2422)

Please note that with this update, the OpenJDK package in Ubuntu

18.04 LTS has transitioned from OpenJDK 10 to OpenJDK 11. Several

additional packages were updated to be compatible with OpenJDK 11.

Topics%20covered

Topics Covered

security advisory critical ubuntu memory exposure openjdk

Update Instructions

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

Ubuntu 18.04 LTS:
  openjdk-11-jdk                  11.0.2+9-3ubuntu1~18.04.3
  openjdk-11-jre                  11.0.2+9-3ubuntu1~18.04.3

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-3949-1

CVE-2019-2422

Severity
critical
Lowest
Low
Medium
High
Critical

April 16, 2019

Topics%20covered

Topics Covered

security advisory critical ubuntu memory exposure openjdk

Package Information

https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.2+9-3ubuntu1~18.04.3

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