Improper input validation in MySQL Server - CVE-2021-2011

Vulnerability identifier: #VU49805

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2021-2011

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
MySQL Server
Gentoo Linux
Anolis OS
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux Server - TUS
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-EUCJP
mecab-ipadic
mysql-server-5.7 (Ubuntu package)
mysql5-server
mysql5-libs
mysql5-errmsg
mysql5-embedded-devel
mysql5-embedded
mysql5-devel
mysql5-debugsource
mysql5-debuginfo
mysql5-common
mysql5
mysql5-test
mysql-server-8.0 (Ubuntu package)
mysql
community-mysql
mysql-connector-odbc
mysql-common
mysql-devel
mysql-errmsg
mysql-libs
mysql-server
mysql-test
Data Computing Appliance (DCA)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

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 perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://www.oracle.com/security-alerts/cpujan2021.html