Denial of Service Vulnerability in MariaDB - CVE-2017-10378

mariadb Updated 02 Oct 2025

Summary

19/10/2017

Disclosed on

N/A

Severity

Yes i

Fix available

Medium

Severity

6.5

CVSS Score

ALPINE-CVE-2017-10378: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Affects mariadb versions < 10.1.32-r0. Fixed in 10.1.32-r0. How to fix ↓

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Background

MariaDB is an open-source relational database management system that is widely used as an alternative to MySQL. It offers features such as high performance, scalability, and a rich set of functionalities for managing data. However, certain versions of MariaDB are vulnerable to a Denial of Service (DoS) attack due to a flaw in the MySQL Server component, specifically in the Optimizer subcomponent.

Vulnerability Detail

The vulnerability identified as CVE-2017-10378 allows low-privileged attackers with network access to exploit the MySQL Server component of Oracle MySQL. This vulnerability affects versions 5.5.57 and earlier, 5.6.37 and earlier, and 5.7.11 and earlier. Attackers can cause the MySQL Server to hang or crash repeatedly, leading to a complete denial of service. The CVSS 3.0 Base Score for this vulnerability is 6.5, indicating a significant impact on availability.

How To Fix

Minimum fixed version

10.1.32-r0

This is the first release that contains the fix.

sudo apk add --upgrade mariadb

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Workaround

As a temporary workaround, consider restricting network access to the MySQL Server to trusted IP addresses only. This can help mitigate the risk of exploitation until the package is updated.

Conclusion

CVE-2017-10378 is a significant vulnerability in MariaDB that can lead to denial of service. It is crucial to update to the patched version to mitigate risks. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.

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