Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2023-21954
CVE-2023-21954:
Java vulnerability analysis and mitigation
Overview
CVE-2023-21954 is a vulnerability discovered in Oracle Java SE and Oracle GraalVM Enterprise Edition. The vulnerability affects multiple versions including Oracle Java SE (8u361, 8u361-perf, 11.0.18, 17.0.6) and Oracle GraalVM Enterprise Edition (20.3.9, 21.3.5, 22.3.1). This vulnerability was discovered by Ramki Ramakrishna of Amazon and disclosed in April 2023. It is related to incorrect enqueue of references in the garbage collector component (Oracle Advisory).
Technical details
The vulnerability is classified as difficult to exploit and requires network access via multiple protocols. It has a CVSS 3.1 Base Score of 5.9 (Medium) with the vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N. The vulnerability specifically affects the Hotspot component and can be exploited through Java deployments that load and run untrusted code, such as sandboxed Java Web Start applications or sandboxed Java applets. It can also be exploited through APIs in the specified Component (NVD).
Impact
Successful exploitation of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE and Oracle GraalVM Enterprise Edition accessible data. The vulnerability primarily impacts the confidentiality of the system, with no direct impact on integrity or availability (Oracle Advisory).
Mitigation and workarounds
Oracle has released patches to address this vulnerability in the April 2023 Critical Patch Update. Users are strongly recommended to update to the fixed versions: Java SE 8u372, 11.0.19, 17.0.7, and GraalVM Enterprise Edition versions post-April 2023 update. The vulnerability has also been addressed in various Linux distributions including Debian and Ubuntu through their respective security updates (Debian Advisory, Red Hat Advisory).
Additional resources
Source: This report was generated using AI
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