#VU77142 NULL pointer dereference in MariaDB - CVE-2022-47015

Vulnerability identifier: #VU77142

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-47015

CWE-ID: CWE-476

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 (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the spider_db_mbase::print_warnings() function. A remote user can pass specially crafted data to the server and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MariaDB: 10.3.0 - 10.3.38, 10.4.0 - 10.4.28, 10.5.0 - 10.5.19, 10.6.0 - 10.6.12, 10.7.0 - 10.7.8, 10.8.0 - 10.8.7, 10.9.0 - 10.9.5, 10.10.0 - 10.11.2

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External links
http://github.com/MariaDB/server/commit/be0a46b3d52b58956fd0d47d040b9f4514406954
http://jira.mariadb.org/browse/MDEV-29644

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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.