#VU63521 Buffer overflow in MariaDB - CVE-2022-27387

Vulnerability identifier: #VU63521

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

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
https://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.