Improper input validation in MySQL Server - CVE-2019-2993

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Main Vulnerability Database Vulnerabilities #VU28713

Improper input validation in MySQL Server - CVE-2019-2993

Published: June 5, 2020


Vulnerability identifier: #VU28713
CSH Severity: Medium
CVSS v4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-2993
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to improper input validation within the Server: C API component in MySQL Server. A remote authenticated user can exploit this vulnerability to perform a denial of service (DoS) attack.


Affected software

MySQL Server
Amazon Linux AMI
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux Server - AUS
Fedora
rh-mysql80-mysql (Red Hat package)
community-mysql
mysql

How to mitigate CVE-2019-2993

Install updates from vendor's website.

MySQL Server - addressed in versions 5.7.28, 8.0.18
rh-mysql80-mysql (Red Hat package) - update to 8.0.21-1.el7
community-mysql - addressed in versions 8.0.18-1.fc29, 8.0.18-1.fc30, 8.0.18-1.fc31
mysql - addressed in versions 8.0-2920191102174605.6c81f848, 8.0-3020191102174605.a5b0195c, 8.0-3120191102174605.f636be4b

External References

Related Security Bulletins