Vulnerability identifier: #VU63521

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-27387

CWE-ID: CWE-120

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MariaDB
Server applications / Database software

Vendor: MariaDB Foundation

Description
The vulnerability allows a remote user to perform a denial of service attack.

The vulnerability exists due to buffer overflow error in the decimal_bin_size component. A remote user can send specially crafted SQL statements to the affected application, trigger buffer overflow error and perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MariaDB: 10.3.0 - 10.3.32, 10.4.0 - 10.4.22, 10.5.0 - 10.5.13, 10.6.0 - 10.6.5, 10.7.0 - 10.7.1

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External links
http://jira.mariadb.org/browse/MDEV-26422

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.