=========================================================================
Ubuntu Security Notice USN-6527-1
November 29, 2023

openjdk-17, openjdk-21, openjdk-lts vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in OpenJDK 17, OpenJDK 21, OpenJDK.

Software Description:
- openjdk-17: Open Source Java implementation
- openjdk-21: Open Source Java implementation
- openjdk-lts: Open Source Java implementation

Details:

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 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)

Update instructions:

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

Ubuntu 23.10:
  openjdk-11-jdk                  11.0.21+9-0ubuntu1~23.10
  openjdk-11-jdk-headless         11.0.21+9-0ubuntu1~23.10
  openjdk-11-jre                  11.0.21+9-0ubuntu1~23.10
  openjdk-11-jre-headless         11.0.21+9-0ubuntu1~23.10
  openjdk-11-jre-zero             11.0.21+9-0ubuntu1~23.10
  openjdk-17-jdk                  17.0.9+9-1~23.10
  openjdk-17-jdk-headless         17.0.9+9-1~23.10
  openjdk-17-jre                  17.0.9+9-1~23.10
  openjdk-17-jre-headless         17.0.9+9-1~23.10
  openjdk-17-jre-zero             17.0.9+9-1~23.10
  openjdk-21-jdk                  21.0.1+12-2~23.10
  openjdk-21-jdk-headless         21.0.1+12-2~23.10
  openjdk-21-jre                  21.0.1+12-2~23.10
  openjdk-21-jre-headless         21.0.1+12-2~23.10
  openjdk-21-jre-zero             21.0.1+12-2~23.10

Ubuntu 23.04:
  openjdk-11-jdk                  11.0.21+9-0ubuntu1~23.04
  openjdk-11-jdk-headless         11.0.21+9-0ubuntu1~23.04
  openjdk-11-jre                  11.0.21+9-0ubuntu1~23.04
  openjdk-11-jre-headless         11.0.21+9-0ubuntu1~23.04
  openjdk-11-jre-zero             11.0.21+9-0ubuntu1~23.04
  openjdk-17-jdk                  17.0.9+9-1~23.04
  openjdk-17-jdk-headless         17.0.9+9-1~23.04
  openjdk-17-jre                  17.0.9+9-1~23.04
  openjdk-17-jre-headless         17.0.9+9-1~23.04
  openjdk-17-jre-zero             17.0.9+9-1~23.04
  openjdk-21-jdk                  21.0.1+12-2~23.04
  openjdk-21-jdk-headless         21.0.1+12-2~23.04
  openjdk-21-jre                  21.0.1+12-2~23.04
  openjdk-21-jre-headless         21.0.1+12-2~23.04
  openjdk-21-jre-zero             21.0.1+12-2~23.04

Ubuntu 22.04 LTS:
  openjdk-11-jdk                  11.0.21+9-0ubuntu1~22.04
  openjdk-11-jdk-headless         11.0.21+9-0ubuntu1~22.04
  openjdk-11-jre                  11.0.21+9-0ubuntu1~22.04
  openjdk-11-jre-headless         11.0.21+9-0ubuntu1~22.04
  openjdk-11-jre-zero             11.0.21+9-0ubuntu1~22.04
  openjdk-17-jdk                  17.0.9+9-1~22.04
  openjdk-17-jdk-headless         17.0.9+9-1~22.04
  openjdk-17-jre                  17.0.9+9-1~22.04
  openjdk-17-jre-headless         17.0.9+9-1~22.04
  openjdk-17-jre-zero             17.0.9+9-1~22.04

Ubuntu 20.04 LTS:
  openjdk-11-jdk                  11.0.21+9-0ubuntu1~20.04
  openjdk-11-jdk-headless         11.0.21+9-0ubuntu1~20.04
  openjdk-11-jre                  11.0.21+9-0ubuntu1~20.04
  openjdk-11-jre-headless         11.0.21+9-0ubuntu1~20.04
  openjdk-11-jre-zero             11.0.21+9-0ubuntu1~20.04
  openjdk-17-jdk                  17.0.9+9-1~20.04
  openjdk-17-jdk-headless         17.0.9+9-1~20.04
  openjdk-17-jre                  17.0.9+9-1~20.04
  openjdk-17-jre-headless         17.0.9+9-1~20.04
  openjdk-17-jre-zero             17.0.9+9-1~20.04

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  openjdk-11-jdk                  11.0.21+9-0ubuntu1~18.04
  openjdk-11-jdk-headless         11.0.21+9-0ubuntu1~18.04
  openjdk-11-jre                  11.0.21+9-0ubuntu1~18.04
  openjdk-11-jre-headless         11.0.21+9-0ubuntu1~18.04
  openjdk-11-jre-zero             11.0.21+9-0ubuntu1~18.04
  openjdk-17-jdk                  17.0.9+9-1~18.04
  openjdk-17-jdk-headless         17.0.9+9-1~18.04
  openjdk-17-jre                  17.0.9+9-1~18.04
  openjdk-17-jre-headless         17.0.9+9-1~18.04
  openjdk-17-jre-zero             17.0.9+9-1~18.04

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-6527-1
  CVE-2023-22025, CVE-2023-22081

Package Information:
  https://launchpad.net/ubuntu/+source/openjdk-17/17.0.9+9-1~23.10
  https://launchpad.net/ubuntu/+source/openjdk-21/21.0.1+12-2~23.10
  https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.21+9-0ubuntu1~23.10
  https://launchpad.net/ubuntu/+source/openjdk-17/17.0.9+9-1~23.04
  https://launchpad.net/ubuntu/+source/openjdk-21/21.0.1+12-2~23.04
  https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.21+9-0ubuntu1~23.04
  https://launchpad.net/ubuntu/+source/openjdk-17/17.0.9+9-1~22.04
  https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.21+9-0ubuntu1~22.04
  https://launchpad.net/ubuntu/+source/openjdk-17/17.0.9+9-1~20.04
  https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.21+9-0ubuntu1~20.04