Improper input validation in MySQL Server - CVE-2020-2922

Vulnerability identifier: #VU26947

CSH Severity: Low

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-2922

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The vulnerability exists due to improper input validation within the C API component in MySQL Client. A remote non-authenticated attacker can exploit this vulnerability to gain access to sensitive information.

MySQL Server
Gentoo Linux
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for x86_64
Anolis OS
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 for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux Server - AUS
mysql-5.7 (Ubuntu package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
mysql-8.0 (Ubuntu package)
rh-mysql80-mysql (Red Hat package)
rh-mariadb102-mariadb (Red Hat package)
rh-mariadb102-galera (Red Hat package)
mariadb-connector-c-config
mariadb-connector-c-devel
mariadb-connector-c
mariadb-connector-c (Red Hat package)
rh-mariadb103-mariadb (Red Hat package)
rh-mariadb103-galera (Red Hat package)

Install updates from vendor's website.

MySQL Server - update to 8.0.19
mysql-5.7 (Ubuntu package) - addressed in versions 5.7.30-0ubuntu0.16.04.1, 5.7.30-0ubuntu0.18.04.1
mysql-8.0 (Ubuntu package) - addressed in versions 8.0.20-0ubuntu0.19.10.1, 8.0.20-0ubuntu0.20.04.1
rh-mysql80-mysql (Red Hat package) - update to 8.0.21-1.el7
rh-mariadb102-mariadb (Red Hat package) - addressed in versions 10.2.33-1.el6, 10.2.33-1.el7
rh-mariadb102-galera (Red Hat package) - addressed in versions 25.3.29-1.el6, 25.3.29-1.el7
mariadb-connector-c-config - update to 3.1.11-2
mariadb-connector-c-devel - update to 3.1.11-2
mariadb-connector-c - update to 3.1.11-2
mariadb-connector-c (Red Hat package) - addressed in versions 3.1.11-2.el8_0, 3.1.11-2.el8_1, 3.1.11-2.el8_2, 3.1.11-2.el8_3
rh-mariadb103-mariadb (Red Hat package) - update to 10.3.27-1.el7
rh-mariadb103-galera (Red Hat package) - update to 25.3.31-1.el7

• https://www.oracle.com/security-alerts/cpuapr2020.html

• Multiple vulnerabilities in MySQL Server
• Ubuntu update for MySQL
• Red Hat Software Collections update for rh-mysql80-mysql
• Red Hat Software Collections update for rh-mariadb102-mariadb and rh-mariadb102-galera
• Red Hat Enterprise Linux 8 update for mariadb-connector-c
• Red Hat Enterprise Linux TUS 8.2 update for mariadb-connector-c
• Red Hat Enterprise Linux 8.1 update for mariadb-connector-c
• Red Hat Enterprise Linux 8 update for mariadb-connector-c
• Red Hat Enterprise Linux 8 update for the mariadb:10.3 module
• Gentoo update for MySQL
• Red Hat Software Collections update for rh-mariadb103-mariadb and rh-mariadb103-galera
• Anolis OS update for mariadb-connector-c
• Red Hat Enterprise Linux 8 update for the mysql:8.0 module
• Red Hat Enterprise Linux 8 update for the mysql:8.0 module