Improper input validation in MySQL Server - CVE-2021-2232

Vulnerability identifier: #VU52424

CSH Severity: Low

CVSS v4: 1.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-2232

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local privileged user to perform service disruption.

The vulnerability exists due to improper input validation within the Server: Group Replication Plugin component in MySQL Server. A local privileged user can exploit this vulnerability to perform service disruption.

MySQL Server
Red Hat Software Collections
Anolis OS
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Ubuntu
openEuler
rh-mysql80-mysql (Red Hat package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
mecab
mecab-ipadic
mecab-ipadic-EUCJP
mysql-server-5.7 (Ubuntu package)
mysql
mysql-server-8.0 (Ubuntu package)
mysql-common
mysql-devel
mysql-errmsg
mysql-libs
mysql-server
mysql-test

Install updates from vendor's website.

MySQL Server - update to 8.0.24
rh-mysql80-mysql (Red Hat package) - update to 8.0.26-1.el7
mecab - update to 0.996-1
mecab-ipadic - update to 2.7.0.20070801-16.0.1
mecab-ipadic-EUCJP - update to 2.7.0.20070801-16.0.1
mysql-server-5.7 (Ubuntu package) - update to 5.7.34-0ubuntu0.18.04.1
mysql - update to 8.0.24-1
mysql-server-8.0 (Ubuntu package) - addressed in versions 8.0.25-0ubuntu0.20.04.1, 8.0.25-0ubuntu0.20.10.1, 8.0.25-0ubuntu0.21.04.1
mysql - update to 8.0.26-1.0.1
mysql-common - update to 8.0.26-1.0.1
mysql-devel - update to 8.0.26-1.0.1
mysql-errmsg - update to 8.0.26-1.0.1
mysql-libs - update to 8.0.26-1.0.1
mysql-server - update to 8.0.26-1.0.1
mysql-test - update to 8.0.26-1.0.1

• https://www.oracle.com/security-alerts/cpuapr2021.html

• Multiple vulnerabilities in MySQL Server
• Red Hat Enterprise Linux 8.4 update for the mysql:8.0 module
• Red Hat Software Collections update for rh-mysql80-mysql
• Ubuntu update for mysql-5.7
• openEuler 20.03 LTS SP1 update for mysql
• Anolis OS update for mysql:8.0 module