CVE-2023-21954: Medium severity Oracle GraalVM vulnerability
A flaw was found in the object reclamation process of the Hotspot JVM garbage collector in the way it enqueued references. An untrusted Java application or applet could use this flaw to possibly bypass Java sandbox restrictions and access sensitive information.
Other sources
Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Hotspot). Supported versions that are affected are Oracle Java SE: 8u361, 8u361-perf, 11.0.18, 17.0.6; Oracle GraalVM Enterprise Edition: 20.3.9, 21.3.5 and 22.3.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.1 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
Affected Software
Event History
Frequently Asked Questions
What is CVE-2023-21954?
CVE-2023-21954 is a vulnerability in the Oracle Java SE and Oracle GraalVM Enterprise Edition products.
Which versions of Oracle Java SE and Oracle GraalVM Enterprise Edition are affected by CVE-2023-21954?
The affected versions are Oracle Java SE: 8u361, 8u361-perf, 11.0.18, 17.0.6; Oracle GraalVM Enterprise Edition: 20.3.9, 21.3.5, and 22.3.1.
How severe is CVE-2023-21954?
CVE-2023-21954 has a severity value of 5.9, which is classified as medium severity.
How can I fix CVE-2023-21954?
To fix this vulnerability, update Oracle Java SE to versions 11.0.20, 17.0.7, and 20.0.2, or apply the provided patches from the referenced links.
Where can I find more information about CVE-2023-21954?
You can find more information about CVE-2023-21954 at the provided GitHub links.