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Vulnerability DatabaseCVE-2021-35638
CVE-2021-35638:
MySQL vulnerability analysis and mitigation
Overview
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer) affecting versions 8.0.26 and prior. This vulnerability is tracked as CVE-2021-35638 and was disclosed in October 2021 (Oracle Advisory, NVD).
Technical details
The vulnerability has a CVSS v3.1 Base Score of 4.9 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. It requires a high-privileged attacker with network access via multiple protocols to exploit (NVD, NetApp Advisory).
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 (NVD).
Mitigation and workarounds
Oracle has released patches for affected versions through the October 2021 Critical Patch Update. Users should upgrade to the latest version of MySQL Server. Ubuntu users can update their systems through standard system updates, with MySQL being updated to version 8.0.27 in Ubuntu 20.04 LTS, Ubuntu 21.04, and Ubuntu 21.10, and to version 5.7.36 in Ubuntu 18.04 LTS (Ubuntu Notice).
Additional resources
Source: This report was generated using AI
Related MySQL vulnerabilities:
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