Advisory Published

USN-6527-1: OpenJDK vulnerabilities

First published: Wed Nov 29 2023(Updated: )

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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/openjdk-11-jdk<11.0.21+9-0ubuntu1~23.10
11.0.21+9-0ubuntu1~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-11-jdk-headless<11.0.21+9-0ubuntu1~23.10
11.0.21+9-0ubuntu1~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-11-jre<11.0.21+9-0ubuntu1~23.10
11.0.21+9-0ubuntu1~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-11-jre-headless<11.0.21+9-0ubuntu1~23.10
11.0.21+9-0ubuntu1~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-11-jre-zero<11.0.21+9-0ubuntu1~23.10
11.0.21+9-0ubuntu1~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-17-jdk<17.0.9+9-1~23.10
17.0.9+9-1~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-17-jdk-headless<17.0.9+9-1~23.10
17.0.9+9-1~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-17-jre<17.0.9+9-1~23.10
17.0.9+9-1~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-17-jre-headless<17.0.9+9-1~23.10
17.0.9+9-1~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-17-jre-zero<17.0.9+9-1~23.10
17.0.9+9-1~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-21-jdk<21.0.1+12-2~23.10
21.0.1+12-2~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-21-jdk-headless<21.0.1+12-2~23.10
21.0.1+12-2~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-21-jre<21.0.1+12-2~23.10
21.0.1+12-2~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-21-jre-headless<21.0.1+12-2~23.10
21.0.1+12-2~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-21-jre-zero<21.0.1+12-2~23.10
21.0.1+12-2~23.10
Ubuntu=23.10
All of
ubuntu/openjdk-11-jdk<11.0.21+9-0ubuntu1~23.04
11.0.21+9-0ubuntu1~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-11-jdk-headless<11.0.21+9-0ubuntu1~23.04
11.0.21+9-0ubuntu1~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-11-jre<11.0.21+9-0ubuntu1~23.04
11.0.21+9-0ubuntu1~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-11-jre-headless<11.0.21+9-0ubuntu1~23.04
11.0.21+9-0ubuntu1~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-11-jre-zero<11.0.21+9-0ubuntu1~23.04
11.0.21+9-0ubuntu1~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-17-jdk<17.0.9+9-1~23.04
17.0.9+9-1~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-17-jdk-headless<17.0.9+9-1~23.04
17.0.9+9-1~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-17-jre<17.0.9+9-1~23.04
17.0.9+9-1~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-17-jre-headless<17.0.9+9-1~23.04
17.0.9+9-1~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-17-jre-zero<17.0.9+9-1~23.04
17.0.9+9-1~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-21-jdk<21.0.1+12-2~23.04
21.0.1+12-2~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-21-jdk-headless<21.0.1+12-2~23.04
21.0.1+12-2~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-21-jre<21.0.1+12-2~23.04
21.0.1+12-2~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-21-jre-headless<21.0.1+12-2~23.04
21.0.1+12-2~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-21-jre-zero<21.0.1+12-2~23.04
21.0.1+12-2~23.04
Ubuntu=23.04
All of
ubuntu/openjdk-11-jdk<11.0.21+9-0ubuntu1~22.04
11.0.21+9-0ubuntu1~22.04
Ubuntu=22.04
All of
ubuntu/openjdk-11-jdk-headless<11.0.21+9-0ubuntu1~22.04
11.0.21+9-0ubuntu1~22.04
Ubuntu=22.04
All of
ubuntu/openjdk-11-jre<11.0.21+9-0ubuntu1~22.04
11.0.21+9-0ubuntu1~22.04
Ubuntu=22.04
All of
ubuntu/openjdk-11-jre-headless<11.0.21+9-0ubuntu1~22.04
11.0.21+9-0ubuntu1~22.04
Ubuntu=22.04
All of
ubuntu/openjdk-11-jre-zero<11.0.21+9-0ubuntu1~22.04
11.0.21+9-0ubuntu1~22.04
Ubuntu=22.04
All of
ubuntu/openjdk-17-jdk<17.0.9+9-1~22.04
17.0.9+9-1~22.04
Ubuntu=22.04
All of
ubuntu/openjdk-17-jdk-headless<17.0.9+9-1~22.04
17.0.9+9-1~22.04
Ubuntu=22.04
All of
ubuntu/openjdk-17-jre<17.0.9+9-1~22.04
17.0.9+9-1~22.04
Ubuntu=22.04
All of
ubuntu/openjdk-17-jre-headless<17.0.9+9-1~22.04
17.0.9+9-1~22.04
Ubuntu=22.04
All of
ubuntu/openjdk-17-jre-zero<17.0.9+9-1~22.04
17.0.9+9-1~22.04
Ubuntu=22.04
All of
ubuntu/openjdk-11-jdk<11.0.21+9-0ubuntu1~20.04
11.0.21+9-0ubuntu1~20.04
Ubuntu=20.04
All of
ubuntu/openjdk-11-jdk-headless<11.0.21+9-0ubuntu1~20.04
11.0.21+9-0ubuntu1~20.04
Ubuntu=20.04
All of
ubuntu/openjdk-11-jre<11.0.21+9-0ubuntu1~20.04
11.0.21+9-0ubuntu1~20.04
Ubuntu=20.04
All of
ubuntu/openjdk-11-jre-headless<11.0.21+9-0ubuntu1~20.04
11.0.21+9-0ubuntu1~20.04
Ubuntu=20.04
All of
ubuntu/openjdk-11-jre-zero<11.0.21+9-0ubuntu1~20.04
11.0.21+9-0ubuntu1~20.04
Ubuntu=20.04
All of
ubuntu/openjdk-17-jdk<17.0.9+9-1~20.04
17.0.9+9-1~20.04
Ubuntu=20.04
All of
ubuntu/openjdk-17-jdk-headless<17.0.9+9-1~20.04
17.0.9+9-1~20.04
Ubuntu=20.04
All of
ubuntu/openjdk-17-jre<17.0.9+9-1~20.04
17.0.9+9-1~20.04
Ubuntu=20.04
All of
ubuntu/openjdk-17-jre-headless<17.0.9+9-1~20.04
17.0.9+9-1~20.04
Ubuntu=20.04
All of
ubuntu/openjdk-17-jre-zero<17.0.9+9-1~20.04
17.0.9+9-1~20.04
Ubuntu=20.04
All of
ubuntu/openjdk-11-jdk<11.0.21+9-0ubuntu1~18.04
11.0.21+9-0ubuntu1~18.04
Ubuntu=18.04
All of
ubuntu/openjdk-11-jdk-headless<11.0.21+9-0ubuntu1~18.04
11.0.21+9-0ubuntu1~18.04
Ubuntu=18.04
All of
ubuntu/openjdk-11-jre<11.0.21+9-0ubuntu1~18.04
11.0.21+9-0ubuntu1~18.04
Ubuntu=18.04
All of
ubuntu/openjdk-11-jre-headless<11.0.21+9-0ubuntu1~18.04
11.0.21+9-0ubuntu1~18.04
Ubuntu=18.04
All of
ubuntu/openjdk-11-jre-zero<11.0.21+9-0ubuntu1~18.04
11.0.21+9-0ubuntu1~18.04
Ubuntu=18.04
All of
ubuntu/openjdk-17-jdk<17.0.9+9-1~18.04
17.0.9+9-1~18.04
Ubuntu=18.04
All of
ubuntu/openjdk-17-jdk-headless<17.0.9+9-1~18.04
17.0.9+9-1~18.04
Ubuntu=18.04
All of
ubuntu/openjdk-17-jre<17.0.9+9-1~18.04
17.0.9+9-1~18.04
Ubuntu=18.04
All of
ubuntu/openjdk-17-jre-headless<17.0.9+9-1~18.04
17.0.9+9-1~18.04
Ubuntu=18.04
All of
ubuntu/openjdk-17-jre-zero<17.0.9+9-1~18.04
17.0.9+9-1~18.04
Ubuntu=18.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of USN-6527-1?

    USN-6527-1 is classified with high severity due to the potential for memory corruption and denial of service.

  • How do I fix USN-6527-1?

    To fix USN-6527-1, upgrade your OpenJDK installation to versions 11.0.21+9-0ubuntu1~23.10, 17.0.9+9-1~23.10, or 21.0.1+12-2~23.10.

  • What applications are affected by USN-6527-1?

    USN-6527-1 affects applications built using OpenJDK with AVX-512 instruction support enabled on Ubuntu 23.10.

  • Who discovered the vulnerability related to USN-6527-1?

    The vulnerability related to USN-6527-1 was discovered by Carter Kozak.

  • Is there a workaround for USN-6527-1 until a fix is applied?

    There is no official workaround for USN-6527-1; applying the available updates is recommended.

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