USN-7099-1: OpenJDK 21 vulnerabilities

Releases

• Ubuntu 24.10
• Ubuntu 24.04 LTS
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• openjdk-21 - Open Source Java implementation

Details

Andy Boothe discovered that the Networking component of OpenJDK 21 did not
properly handle access under certain circumstances. An unauthenticated
attacker could possibly use this issue to cause a denial of service.
(CVE-2024-21208)

It was discovered that the Hotspot component of OpenJDK 21 did not properly
handle vectorization under certain circumstances. An unauthenticated
attacker could possibly use this issue to access unauthorized resources
and expose sensitive information. (CVE-2024-21210, CVE-2024-21235)

It was discovered that the Serialization component of OpenJDK 21 did not
properly handle deserialization under certain circumstances. An
unauthenticated attacker could possibly use this issue to cause a denial
of service. (CVE-2024-21217)

Update instructions

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

Ubuntu 24.10

• openjdk-21-jdk - 21.0.5+11-1ubuntu1~24.10
• openjdk-21-jdk-headless - 21.0.5+11-1ubuntu1~24.10
• openjdk-21-jre - 21.0.5+11-1ubuntu1~24.10
• openjdk-21-jre-headless - 21.0.5+11-1ubuntu1~24.10
• openjdk-21-jre-zero - 21.0.5+11-1ubuntu1~24.10

Ubuntu 24.04

• openjdk-21-jdk - 21.0.5+11-1ubuntu1~24.04
• openjdk-21-jdk-headless - 21.0.5+11-1ubuntu1~24.04
• openjdk-21-jre - 21.0.5+11-1ubuntu1~24.04
• openjdk-21-jre-headless - 21.0.5+11-1ubuntu1~24.04
• openjdk-21-jre-zero - 21.0.5+11-1ubuntu1~24.04

Ubuntu 22.04

• openjdk-21-jdk - 21.0.5+11-1ubuntu1~22.04
• openjdk-21-jdk-headless - 21.0.5+11-1ubuntu1~22.04
• openjdk-21-jre - 21.0.5+11-1ubuntu1~22.04
• openjdk-21-jre-headless - 21.0.5+11-1ubuntu1~22.04
• openjdk-21-jre-zero - 21.0.5+11-1ubuntu1~22.04

Ubuntu 20.04

• openjdk-21-jdk - 21.0.5+11-1ubuntu1~20.04
• openjdk-21-jdk-headless - 21.0.5+11-1ubuntu1~20.04
• openjdk-21-jre - 21.0.5+11-1ubuntu1~20.04
• openjdk-21-jre-headless - 21.0.5+11-1ubuntu1~20.04
• openjdk-21-jre-zero - 21.0.5+11-1ubuntu1~20.04

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.

References

• CVE-2024-21235
• CVE-2024-21217
• CVE-2024-21208
• CVE-2024-21210

Related notices

• USN-7096-1: openjdk-8-jre-headless, openjdk-8-jre-zero, openjdk-8-doc, openjdk-8-jre, openjdk-8-jre-jamvm, openjdk-8, openjdk-8-source, openjdk-8-jdk-headless, openjdk-8-demo, openjdk-8-jdk
• USN-7097-1: openjdk-11-jdk, openjdk-11-jre-headless, openjdk-11-jre, openjdk-11-jre-zero, openjdk-lts, openjdk-11-jdk-headless, openjdk-11-demo, openjdk-11-source, openjdk-11-doc
• USN-7098-1: openjdk-17, openjdk-17-source, openjdk-17-jre-zero, openjdk-17-doc, openjdk-17-demo, openjdk-17-jre-headless, openjdk-17-jdk, openjdk-17-jre, openjdk-17-jdk-headless