Improper input validation in MySQL Server - CVE-2020-14760

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Main Vulnerability Database Vulnerabilities #VU47793

Improper input validation in MySQL Server - CVE-2020-14760

Published: October 21, 2020


Vulnerability identifier: #VU47793
CSH Severity: Medium
CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-14760
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote privileged user to damange or delete data.

The vulnerability exists due to improper input validation within the Server: Optimizer component in MySQL Server. A remote privileged user can exploit this vulnerability to damange or delete data.


Affected software

MySQL Server
Gentoo Linux
Ubuntu
mysql-server-5.7 (Ubuntu package)
mysql-server-8.0 (Ubuntu package)

How to mitigate CVE-2020-14760

Install updates from vendor's website.

MySQL Server - update to 5.7.32
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

External References

Related Security Bulletins