Improper input validation in MySQL Server - CVE-2020-2814

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Main Vulnerability Database Vulnerabilities #VU26920

Improper input validation in MySQL Server - CVE-2020-2814

Published: April 15, 2020


Vulnerability identifier: #VU26920
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-2814
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

MySQL Server
Amazon Linux AMI
Gentoo Linux
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support
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 Server - TUS
Red Hat Enterprise Linux Server - AUS
Opensuse
Ubuntu
openEuler
Fedora
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
rh-mysql80-mysql (Red Hat package)
rh-mariadb102-mariadb (Red Hat package)
mariadb (Alpine package)
rh-mariadb102-galera (Red Hat package)
mariadb-connector-c
community-mysql
mysql
mariadb-server (Ubuntu package)
mariadb
rh-mariadb103-mariadb (Red Hat package)
rh-mariadb103-galera (Red Hat package)
galera

How to mitigate CVE-2020-2814

Install updates from vendor's website.

MySQL Server - addressed in versions 5.7.29, 8.0.19
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
mariadb (Alpine package) - update to 10.2.32-r0
rh-mariadb102-galera (Red Hat package) - addressed in versions 25.3.29-1.el6, 25.3.29-1.el7
mariadb-connector-c - addressed in versions 3.1.8-1.fc32, 3.1.11-1.fc31
community-mysql - addressed in versions 8.0.20-1.fc30, 8.0.20-1.fc31, 8.0.20-1.fc32
mysql - update to 8.0.21-2
mysql - addressed in versions 8.0-3020200430120139.a5b0195c, 8.0-3120200430120139.f636be4b, 8.0-3220200430120139.43bbeeef
mariadb-server (Ubuntu package) - addressed in versions 1:10.1.47-0ubuntu0.18.04.1, 1:10.3.25-0ubuntu0.20.04.1
mariadb - addressed in versions 10.3.25-1.fc31, 10.3.26-1.fc31, 10.3-3120201026103040.f636be4b, 10.3-3220201026103040.43bbeeef, 10.4.13-1.fc32, 10.4-3120200608100001.f636be4b, 10.4-3220200608100001.43bbeeef
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
galera - addressed in versions 25.3.31-1.fc31, 26.4.4-2.fc32

External References

Related Security Bulletins