Ubuntu 24.10 USN-7254-1 critical: openjdk-21 network exposure

ubuntu

February 5, 2025

OpenJDK 21 could be made to expose sensitive information over the network.

Summary

OpenJDK 21 could be made to expose sensitive information over the

network.

Software Description:

- openjdk-21: Open Source Java implementation

Details:

It was discovered that the Hotspot component of OpenJDK 21 did not properly

handle API access under certain circumstances. An unauthenticated attacker

could possibly use this issue to access unauthorized resources and expose

sensitive information.

Topics Covered

security advisory ubuntu sensitive information network exposure openjdk

Update Instructions

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

Ubuntu 24.10
   openjdk-21-jdk                  21.0.6+7-1~24.10.1
   openjdk-21-jdk-headless         21.0.6+7-1~24.10.1
   openjdk-21-jre                  21.0.6+7-1~24.10.1
   openjdk-21-jre-headless         21.0.6+7-1~24.10.1
   openjdk-21-jre-zero             21.0.6+7-1~24.10.1

Ubuntu 24.04 LTS
   openjdk-21-jdk                  21.0.6+7-1~24.04.1
   openjdk-21-jdk-headless         21.0.6+7-1~24.04.1
   openjdk-21-jre                  21.0.6+7-1~24.04.1
   openjdk-21-jre-headless         21.0.6+7-1~24.04.1
   openjdk-21-jre-zero             21.0.6+7-1~24.04.1

Ubuntu 22.04 LTS
   openjdk-21-jdk                  21.0.6+7-1~22.04.1
   openjdk-21-jdk-headless         21.0.6+7-1~22.04.1
   openjdk-21-jre                  21.0.6+7-1~22.04.1
   openjdk-21-jre-headless         21.0.6+7-1~22.04.1
   openjdk-21-jre-zero             21.0.6+7-1~22.04.1

Ubuntu 20.04 LTS
   openjdk-21-jdk                  21.0.6+7-1~20.04.1
   openjdk-21-jdk-headless         21.0.6+7-1~20.04.1
   openjdk-21-jre                  21.0.6+7-1~20.04.1
   openjdk-21-jre-headless         21.0.6+7-1~20.04.1
   openjdk-21-jre-zero             21.0.6+7-1~20.04.1

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