Improper input validation in MySQL Server - CVE-2020-2780

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Main Vulnerability Database Vulnerabilities #VU26911

Improper input validation in MySQL Server - CVE-2020-2780

Published: April 15, 2020


Vulnerability identifier: #VU26911
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-2020-2780
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: DML component in MySQL Server. A remote authenticated 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 Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for x86_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 - AUS
Red Hat Enterprise Linux Server - TUS
openEuler
Fedora
mariadb (Red Hat package)
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
community-mysql
mysql
mariadb
rh-mariadb103-mariadb (Red Hat package)
rh-mariadb103-galera (Red Hat package)
galera
Red Hat OpenShift Container Platform

How to mitigate CVE-2020-2780

Install updates from vendor's website.

mariadb (Red Hat package) - update to 5.5.68-1.el7
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 - update to 3.1.11-1.fc31
Red Hat OpenShift Container Platform - update to 4.3.40
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 - addressed in versions 10.3.25-1.fc31, 10.3.26-1.fc31, 10.3-3120201026103040.f636be4b, 10.3-3220201026103040.43bbeeef
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 - update to 25.3.31-1.fc31

External References

Related Security Bulletins