PT-2020-5992 · Oracle+9 · Mysql Server+8

Published

2020-11-03

·

Updated

2025-06-10

·

CVE-2021-2194

CVSS v3.1

9.0

Critical

VectorAV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Oracle MySQL Server versions 5.7.33 and prior Oracle MySQL Server versions 8.0.23 and prior
Description The issue is related to insufficient input validation in the InnoDB component of Oracle MySQL Server. It allows a high-privileged attacker with network access via multiple protocols to compromise the MySQL Server. Successful attacks can result in the unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of the MySQL Server.
Recommendations For Oracle MySQL Server versions 5.7.33 and prior, update to a version later than 5.7.33. For Oracle MySQL Server versions 8.0.23 and prior, update to a version later than 8.0.23. As a temporary workaround, consider restricting network access to the MySQL Server to minimize the risk of exploitation.

Exploit

Fix

RCE

Found an issue in the description? Have something to add? Feel free to write us 👾
dbugs@ptsecurity.com

Weakness Enumeration

CWE-20

Related Identifiers

ALSA-2020:5500
ALSA-2021:3590
ALT-PU-2020-3275
ALT-PU-2020-3295
ALT-PU-2020-3333
ALT-PU-2021-1686
ALT-PU-2021-2380
ALT-PU-2021-3668
BDU:2021-02469
BIT-MARIADB-2021-2194
BIT-MARIADB-MIN-2021-2194
BIT-MYSQL-CLIENT-2021-2194
CESA-2020_5500
CESA-2021_3590
CVE-2021-2194
OESA-2021-1199
OESA-2022-1682
RHSA-2020:5246
RHSA-2020:5500
RHSA-2020:5654
RHSA-2020:5663
RHSA-2020:5665
RHSA-2020_5500
RHSA-2021:3590
RHSA-2021:3811
RHSA-2021_3590
RLSA-2020:5500
RLSA-2021:3590
USN-4952-1
USN-5022-3

Affected Products

Alt Linux
Almalinux
Centos
Linuxmint
Mariadb Server
Mysql Server
Red Hat
Rocky Linux
Ubuntu