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Vulnerability DatabaseCVE-2023-21911

CVE-2023-21911: 
MySQL vulnerability analysis and mitigation

Overview

CVE-2023-21911 is a vulnerability in the MySQL Server product of Oracle MySQL, specifically affecting the InnoDB component. The vulnerability affects MySQL Server versions 8.0.32 and prior. It was disclosed in April 2023 as part of Oracle's Critical Patch Update (Oracle CPU).

Technical details

The vulnerability has a CVSS 3.1 Base Score of 4.9 (Medium severity) with the following vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. The vulnerability is characterized as easily exploitable and requires high privileges with network access via multiple protocols to compromise MySQL Server (NVD).

Impact

Successful exploitation of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash, leading to a complete denial of service (DoS) of MySQL Server. The vulnerability only affects availability, with no impact on confidentiality or integrity (Oracle CPU).

Mitigation and workarounds

Oracle has released patches for this vulnerability in MySQL version 8.0.33. Various distributions have also released fixed versions, including Fedora 37, 38, and 39 with community-mysql version 8.0.34-2 (Fedora Updates).

Additional resources

Source: This report was generated using AI

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