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Ubuntu 23.10 USN-6813-1 critical: OpenJDK 21 DoS and info leak

ubuntu
Calendar Grey June 6, 2024
Dist Ubuntu Esm H88
Recent security vulnerabilities in OpenJDK 21 have been resolved in the newest Ubuntu Security Announcement, enhancing the overall system protection.
Several security issues were fixed in OpenJDK 21.

Summary

Several security issues were fixed in OpenJDK 21.

Software Description:

- openjdk-21: Open Source Java implementation

Details:

It was discovered that the Hotspot component of OpenJDK 21 incorrectly

handled certain exceptions with specially crafted long messages. An

attacker could possibly use this issue to cause a denial of service.

(CVE-2024-21011)

It was discovered that OpenJDK 21 incorrectly performed reverse DNS

query under certain circumstances in the Networking/HTTP client

component. An attacker could possibly use this issue to obtain sensitive

information. (CVE-2024-21012)

Vladimir Kondratyev discovered that the Hotspot component of OpenJDK 21

incorrectly handled address offset calculations in the C1 compiler. An

attacker could possibly use this issue to cause a denial of service

or execute arbitrary code. (CVE-2024-21068)

It was discovered that the Hotspot component of OpenJDK 21 incorrectly

handled array accesses in the C2 compiler. An attacke...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak critical software update DoS Ubuntu critical severity ubuntu openjdk OpenJDK 21

Update Instructions

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

Ubuntu 23.10
   openjdk-21-jdk                  21.0.3+9-1ubuntu1~23.10.1
   openjdk-21-jdk-headless         21.0.3+9-1ubuntu1~23.10.1
   openjdk-21-jre                  21.0.3+9-1ubuntu1~23.10.1
   openjdk-21-jre-headless         21.0.3+9-1ubuntu1~23.10.1
   openjdk-21-jre-zero             21.0.3+9-1ubuntu1~23.10.1

Ubuntu 22.04 LTS
   openjdk-21-jdk                  21.0.3+9-1ubuntu1~22.04.1
   openjdk-21-jdk-headless         21.0.3+9-1ubuntu1~22.04.1
   openjdk-21-jre                  21.0.3+9-1ubuntu1~22.04.1
   openjdk-21-jre-headless         21.0.3+9-1ubuntu1~22.04.1
   openjdk-21-jre-zero             21.0.3+9-1ubuntu1~22.04.1

Ubuntu 20.04 LTS
   openjdk-21-jdk                  21.0.3+9-1ubuntu1~20.04.1
   openjdk-21-jdk-headless         21.0.3+9-1ubuntu1~20.04.1
   openjdk-21-jre                  21.0.3+9-1ubuntu1~20.04.1
   openjdk-21-jre-headless         21.0.3+9-1ubuntu1~20.04.1
   openjdk-21-jre-zero             21.0.3+9-1ubuntu1~20.04.1

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

References

https://ubuntu.com/security/notices/USN-6813-1

CVE-2024-21011, CVE-2024-21012, CVE-2024-21068, CVE-2024-21094

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6813-1

Topics%20covered

Topics Covered

security advisory denial of service information leak critical software update DoS Ubuntu critical severity ubuntu openjdk OpenJDK 21

Package Information

https://launchpad.net/ubuntu/+source/openjdk-21/21.0.3+9-1ubuntu1~23.10.1
https://launchpad.net/ubuntu/+source/openjdk-21/21.0.3+9-1ubuntu1~22.04.1
https://launchpad.net/ubuntu/+source/openjdk-21/21.0.3+9-1ubuntu1~20.04.1

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