Improper input validation in MySQL Server - CVE-2020-14591
Published: July 16, 2020
Vulnerability identifier: #VU30084
CSH Severity: Medium
CVSS v4: 7.1 [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]
CVE-ID: CVE-2020-14591
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the Server: Audit Plug-in component in MySQL Server. A remote authenticated user can exploit this vulnerability to perform a denial of service (DoS) attack.
Affected software
MySQL Server
Gentoo Linux
Ubuntu
openEuler
mysql-server-5.7 (Ubuntu package)
mysql-server-8.0 (Ubuntu package)
mysql
Gentoo Linux
Ubuntu
openEuler
mysql-server-5.7 (Ubuntu package)
mysql-server-8.0 (Ubuntu package)
mysql
How to mitigate CVE-2020-14591
Install updates from vendor's website.
mysql-server-5.7 (Ubuntu package) - addressed in versions 5.7.31-0ubuntu0.16.04.1, 5.7.31-0ubuntu0.18.04.1
mysql-server-8.0 (Ubuntu package) - update to 8.0.21-0ubuntu0.20.04.3
mysql - update to 8.0.21-2
mysql-server-8.0 (Ubuntu package) - update to 8.0.21-0ubuntu0.20.04.3
mysql - update to 8.0.21-2