PT-2021-1855 · Oracle+8 · Mysql Server+7
Published
2021-01-19
·
Updated
2022-01-04
·
CVE-2021-2031
CVSS v2.0
6.8
Medium
| Vector | AV:N/AC:L/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
MySQL Server versions 8.0.22 and prior
Description
A vulnerability in the MySQL Server product allows a highly privileged attacker with network access via multiple protocols to compromise the server. Successful attacks can result in the unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of the MySQL Server. The issue is due to insufficient input validation in the Server: Optimizer component.
Recommendations
For versions 8.0.22 and prior, update to a version later than 8.0.22 to resolve the issue. As a temporary workaround, consider restricting network access to the MySQL Server to minimize the risk of exploitation. Additionally, monitor the server for signs of a denial-of-service attack and have a plan in place to quickly respond to such incidents.
Exploit
Fix
RCE
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Centos
Linuxmint
Mysql Server
Red Hat
Rocky Linux
Ubuntu