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Ubuntu 23.10 USN-6696-1 critical: OpenJDK 8 security fix overview

ubuntu
Calendar Grey March 18, 2024
Dist Ubuntu Esm H88
Numerous vulnerabilities have been discovered in OpenJDK 8 on Ubuntu. Understand the essential patches and possible repercussions for your setup.
Several security issues were fixed in OpenJDK 8.

Summary

Several security issues were fixed in OpenJDK 8.

Software Description:

- openjdk-8: Open Source Java implementation

Details:

Yi Yang discovered that the Hotspot component of OpenJDK 8 incorrectly

handled array accesses in the C1 compiler. An attacker could possibly

use this issue to cause a denial of service, execute arbitrary code or

bypass Java sandbox restrictions. (CVE-2024-20918)

It was discovered that the Hotspot component of OpenJDK 8 did not

properly verify bytecode in certain situations. An attacker could

possibly use this issue to bypass Java sandbox restrictions.

(CVE-2024-20919)

It was discovered that the Hotspot component of OpenJDK 8 had an

optimization flaw when generating range check loop predicates. An attacker

could possibly use this issue to cause a denial of service, execute

arbitrary code or bypass Java sandbox restrictions. (CVE-2024-20921)

Valentin Eudeline discovered that OpenJDK 8 incorrectly handled certain

options in the Nash...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical issue software update DoS attack Ubuntu update instructions critical threats OpenJDK Java issues Java sandbox

Update Instructions

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

Ubuntu 23.10:
   openjdk-8-jdk                   8u402-ga-2ubuntu1~23.10.1
   openjdk-8-jdk-headless          8u402-ga-2ubuntu1~23.10.1
   openjdk-8-jre                   8u402-ga-2ubuntu1~23.10.1
   openjdk-8-jre-headless          8u402-ga-2ubuntu1~23.10.1
   openjdk-8-jre-zero              8u402-ga-2ubuntu1~23.10.1

Ubuntu 22.04 LTS:
   openjdk-8-jdk                   8u402-ga-2ubuntu1~22.04
   openjdk-8-jdk-headless          8u402-ga-2ubuntu1~22.04
   openjdk-8-jre                   8u402-ga-2ubuntu1~22.04
   openjdk-8-jre-headless          8u402-ga-2ubuntu1~22.04
   openjdk-8-jre-zero              8u402-ga-2ubuntu1~22.04

Ubuntu 20.04 LTS:
   openjdk-8-jdk                   8u402-ga-2ubuntu1~20.04
   openjdk-8-jdk-headless          8u402-ga-2ubuntu1~20.04
   openjdk-8-jre                   8u402-ga-2ubuntu1~20.04
   openjdk-8-jre-headless          8u402-ga-2ubuntu1~20.04
   openjdk-8-jre-zero              8u402-ga-2ubuntu1~20.04

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   openjdk-8-jdk                   8u402-ga-2ubuntu1~18.04
   openjdk-8-jdk-headless          8u402-ga-2ubuntu1~18.04
   openjdk-8-jre                   8u402-ga-2ubuntu1~18.04
   openjdk-8-jre-headless          8u402-ga-2ubuntu1~18.04
   openjdk-8-jre-zero              8u402-ga-2ubuntu1~18.04

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-6696-1

CVE-2024-20918, CVE-2024-20919, CVE-2024-20921, CVE-2024-20926,

CVE-2024-20945, CVE-2024-20952

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6696-1

Topics%20covered

Topics Covered

security advisory denial of service critical issue software update DoS attack Ubuntu update instructions critical threats OpenJDK Java issues Java sandbox

Package Information

https://launchpad.net/ubuntu/+source/openjdk-8/8u402-ga-2ubuntu1~22.04
https://launchpad.net/ubuntu/+source/openjdk-8/8u402-ga-2ubuntu1~20.04

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