CVE-2021-2352: 
MySQL vulnerability analysis and mitigation

CVE-2021-2352 is a vulnerability in the MySQL Server product of Oracle MySQL, specifically affecting the Server: DDL component. The vulnerability affects MySQL versions 8.0.25 and prior (NVD, Ubuntu).

The vulnerability has been assigned a CVSS score of 4.9 (MEDIUM) with the vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H, indicating it requires network access and high privileges to exploit, but does not require user interaction (NetApp Security).

Successful exploitation of this vulnerability could lead to a denial of service (DoS) condition in MySQL Server, potentially causing the server to hang or experience frequently repeatable crashes (NetApp Security).

The vulnerability requires high privileges and network access to exploit. There is public discussion of this vulnerability, though no specific details about active exploitation in the wild have been reported (NetApp Security).

The vulnerability has been fixed in MySQL version 8.0.26. Users are strongly recommended to upgrade to this version or later. For Ubuntu systems, updates are available through MySQL 8.0.26-0ubuntu0.21.04.3 for Ubuntu 21.04, MySQL 8.0.26-0ubuntu0.20.04.2 for Ubuntu 20.04, and MySQL 5.7.35-0ubuntu0.18.04.1 for Ubuntu 18.04 (Ubuntu Security Notice).