CVE-2023-52971: 
MariaDB Server vulnerability analysis and mitigation

A vulnerability identified as CVE-2023-52971 affects MariaDB Server versions 10.10 through 10.11.* and 11.0 through 11.4.*. The vulnerability was disclosed on March 8, 2025, and involves a crash condition in the JOIN::fix_all_splittings_in_plan functionality (MITRE CVE, NVD).

The vulnerability has been assigned a CVSS 3.1 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 has been classified under CWE-1038 (Insecure Automated Optimizations) (NVD).

The vulnerability results in a crash of the MariaDB server when specific JOIN operations are performed, potentially leading to service availability issues. The CVSS scoring indicates high impact on availability while maintaining confidentiality and integrity (MITRE CVE).

The vulnerability requires network access and high privileges to exploit, as indicated by the CVSS vector string (AV:N/AC:L/PR:H/UI:N). The low attack complexity suggests that once an attacker has the required privileges, the vulnerability is relatively straightforward to exploit (NVD).

As of March 12, 2025, the vulnerability remains under evaluation for Ubuntu 24.10 and 24.04 LTS releases. No official fixes have been released yet, and the issue is currently marked as unfixed in Debian's security tracker (Ubuntu Security, Debian Tracker).