#VU49828 Improper input validation in MySQL Server


Published: 2021-01-20

Vulnerability identifier: #VU49828

Vulnerability risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-2022

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MySQL Server
Server applications / Database software

Vendor: Oracle

Description

The vulnerability allows a remote privileged user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the InnoDB component in MySQL Server. A remote privileged user can exploit this vulnerability to perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MySQL Server: 5.6.0 - 5.6.50, 5.7.0 - 5.7.32, 8.0.0 - 8.0.22


External links
http://www.oracle.com/security-alerts/cpujan2021.html


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.


Latest bulletins with this vulnerability