#VU57510 Improper input validation in MySQL Connectors - CVE-2021-2471

Vulnerability identifier: #VU57510

Vulnerability risk: Medium

CVSSv4.0: 5.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2021-2471

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
MySQL Connectors
Hardware solutions / Drivers

Vendor: Oracle

Description

The vulnerability allows a remote privileged user to read data or crash the application.

The vulnerability exists due to improper input validation within the Connector/J component in MySQL Connectors. A remote privileged user can exploit this vulnerability to read data or crash the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MySQL Connectors: 8.0.7 - 8.0.26

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External links
http://www.oracle.com/security-alerts/cpuoct2021.html

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.