Critical Denial of Service Vulnerability in MariaDB - CVE-2019-2805

mariadb Updated 02 Oct 2025

Summary

23/07/2019

Disclosed on

N/A

Severity

Yes i

Fix available

Medium

Severity

6.5

CVSS Score

ALPINE-CVE-2019-2805: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Parser). Affects mariadb versions < 10.3.17-r0. Fixed in 10.3.17-r0. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or Browse

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats

SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml

Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile

Javascript package-lock.json · yarn.lock · pnpm-lock.yaml

PHP composer.lock

Python poetry.lock · requirements.txt · Pipfile.lock

Go go.mod

Rust Cargo.lock

Ruby Gemfile.lock

Dart pubspec.lock

C/C++ conan.lock

Elixir mix.lock

Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Background

MariaDB is an open-source relational database management system that is widely used for web applications and data storage. It is a fork of MySQL and offers features such as high performance, scalability, and security. However, certain versions of MariaDB are vulnerable to CVE-2019-2805, which can lead to a denial of service (DoS) attack, compromising the availability of the database server.

Vulnerability Detail

CVE-2019-2805 is a vulnerability in the MySQL Server component of Oracle MySQL, affecting MariaDB as well. It allows low-privileged attackers with network access to exploit the server via multiple protocols. The vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash of the MySQL Server, leading to a complete denial of service. The affected versions include MariaDB 5.6.44 and prior, 5.7.26 and prior, and 8.0.16 and prior. The CVSS score for this vulnerability is 6.5, indicating a significant risk to availability.

How To Fix

Minimum fixed version

10.3.17-r0

This is the first release that contains the fix.

sudo apk add --upgrade mariadb

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Workaround

As a temporary workaround, consider restricting network access to the MariaDB server to trusted IP addresses only, thereby minimizing exposure to potential attacks.

Conclusion

CVE-2019-2805 poses a serious risk to the availability of MariaDB servers, allowing attackers to exploit the vulnerability and cause denial of service. It is crucial to update to the patched versions to mitigate this risk and ensure the security of your database.

See every vulnerability recorded for mariadb →