CVE-2023-21843 - Vulnerability in Oracle Java SE and GraalVM Enterprise Edition Affecting Sound Component

A recent vulnerability, CVE-2023-21843, has been discovered in the Oracle Java SE and Oracle GraalVM Enterprise Edition, specifically affecting the Sound component. This vulnerability poses potential risks to systems that run untrusted code, such as sandboxed Java Web Start applications or sandboxed Java applets. It is not applicable for systems that run only trusted code, such as servers installed by an administrator. The vulnerability has a CVSS 3.1 Base Score of 3.7, indicating that integrity impacts are possible.

Affected Versions

The following supported versions of Oracle Java SE and Oracle GraalVM Enterprise Edition are affected:

Exploit Details

The vulnerability is considered difficult to exploit, but if successfully attacked, it allows unauthenticated attackers with network access using multiple protocols to compromise Oracle Java SE and Oracle GraalVM Enterprise Edition. This can result in unauthorized update, insert, or delete access to some accessible data.

Specifically, this vulnerability pertains to Java deployments that run untrusted code, such as code from the internet, and rely on the Java sandbox for security. It does not apply to Java deployments that only run trusted code installed by an administrator.

The CVSS Vector for this vulnerability is: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

Code Snippet

As this vulnerability is still relatively new and specific details have not been widely disclosed, there is no public exploit code available. However, the general concept of the vulnerability revolves around the manipulation of the Sound component within the affected versions of Oracle's software products.

Original References

For more information on this vulnerability, refer to the original announcement and documentation provided by Oracle and other security resources:

1. Oracle Security Alert Advisory - CVE-2023-21843
2. CVE-2023-21843 - NVD Detail
3. CVE-2023-21843 - MITRE Detail

Mitigation and Recommendations

It is strongly recommended to apply patches and updates provided by Oracle to fix this vulnerability. In addition, administrators should monitor and manage Java deployments to ensure all systems are secure and up-to-date.

For systems that are running untrusted code, such as sandboxed Java Web Start applications or sandboxed Java applets, consider implementing additional safeguards and security measures to limit the potential impact of this vulnerability. This may include disabling untrusted code execution, adopting more secure coding practices, and keeping all systems and software updated with the latest security patches.

Stay vigilant and keep updating your systems to protect against this and other potential vulnerabilities.

Timeline

Published on: 01/18/2023 00:15:00 UTC
Last modified on: 01/24/2023 19:23:00 UTC