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USN-6528-1: OpenJDK 8 vulnerabilities

29 November 2023

Several security issues were fixed in OpenJDK.

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Releases

Packages

  • openjdk-8 - Open Source Java implementation

Details

It was discovered that the HotSpot VM implementation in OpenJDK did not
properly validate bytecode blocks in certain situations. An attacker could
possibly use this to cause a denial of service. (CVE-2022-40433)

Carter Kozak discovered that OpenJDK, when compiling with AVX-512
instruction support enabled, could produce code that resulted in memory
corruption in certain situations. An attacker targeting applications built
in this way could possibly use this to cause a denial of service or execute
arbitrary code. In Ubuntu, OpenJDK defaults to not using AVX-512
instructions. (CVE-2023-22025)

It was discovered that the CORBA implementation in OpenJDK did not properly
perform deserialization of IOR string objects. An attacker could possibly
use this to bypass Java sandbox restrictions. (CVE-2023-22067)

It was discovered that OpenJDK did not properly perform PKIX certification
path validation in certain situations. An attacker could use this to cause
a denial of service. (CVE-2023-22081)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 23.10
Ubuntu 23.04
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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.

Related notices

  • USN-6527-1: openjdk-11-demo, openjdk-21-jdk, openjdk-11-jdk, openjdk-17-jre-zero, openjdk-17-source, openjdk-21-demo, openjdk-21-doc, openjdk-17, openjdk-21-jre-headless, openjdk-17-jre, openjdk-21-jre, openjdk-17-jdk-headless, openjdk-11-source, openjdk-17-jre-headless, openjdk-11-jre, openjdk-17-doc, openjdk-11-doc, openjdk-17-demo, openjdk-21-jdk-headless, openjdk-17-jdk, openjdk-11-jre-zero, openjdk-21-jre-zero, openjdk-lts, openjdk-11-jdk-headless, openjdk-21-source, openjdk-21, openjdk-11-jre-headless