Improper input validation in MySQL Server - CVE-2020-14791

Vulnerability identifier: #VU47830

CSH Severity: Low

CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-14791

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

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 service disruption.

MySQL Server
Gentoo Linux
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Anolis OS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux Server - AUS
Ubuntu
openEuler
Fedora
Red Hat Software Collections
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-server-8.0 (Ubuntu package)
mysql
community-mysql
mysql-test
mysql-server
mysql-libs
mysql-errmsg
mysql-devel
mysql-common

Install updates from vendor's website.

MySQL Server - update to 8.0.22
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) - addressed in versions 5.7.32-0ubuntu0.16.04.1, 5.7.32-0ubuntu0.18.04.1
mysql-server-8.0 (Ubuntu package) - addressed in versions 8.0.22-0ubuntu0.20.04.2, 8.0.22-0ubuntu0.20.10.2
mysql - update to 8.0.22-1
community-mysql - addressed in versions 8.0.22-1.fc31, 8.0.22-1.fc32, 8.0.22-1.fc33
mysql-test - update to 8.0.26-1.0.1
mysql-server - update to 8.0.26-1.0.1
mysql-libs - update to 8.0.26-1.0.1
mysql-errmsg - update to 8.0.26-1.0.1
mysql-devel - update to 8.0.26-1.0.1
mysql-common - update to 8.0.26-1.0.1
mysql - update to 8.0.26-1.0.1
mysql - addressed in versions 8.0-3120201027185759.f636be4b, 8.0-3220201027185759.43bbeeef, 8.0-3320201027185759.601d93de

• https://www.oracle.com/security-alerts/cpuoct2020.html

• Multiple vulnerabilities in MySQL Server
• Gentoo update for MySQL
• Red Hat Enterprise Linux 8.4 update for the mysql:8.0 module
• Red Hat Software Collections update for rh-mysql80-mysql
• openEuler 20.03 LTS update for mysql
• Anolis OS update for mysql:8.0 module
• Ubuntu update for mysql-5.7
• Fedora 33 update for community-mysql
• Fedora 32 update for community-mysql
• Fedora 31 Modular update for mysql
• Fedora 33 Modular update for mysql
• Fedora 32 Modular update for mysql
• Fedora 31 update for community-mysql