1. Ubuntu Security Notices
  2. USN-7254-1

USN-7254-1: OpenJDK 21 vulnerability

Publication date

5 February 2025

Overview

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

Releases

Packages

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.

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.

Update instructions

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.

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
24.10 oracular 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
24.04 noble 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
22.04 jammy 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
20.04 focal 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

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References

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