CVE-2017-3244: Oracle MySQL and MariaDB denial of service in DML subcomponent

CVE-2017-3244 · Severity: medium · CVSS 6.5 · Published 2017-01-27

A vulnerability in the MySQL and MariaDB database servers could allow a user with low-level access to crash the database service. This type of attack results in a denial-of-service, making the database and any applications relying on it unavailable to users. Organizations using these database systems should apply the available security patches to ensure continuous service availability.

Technologies: Oracle MySQL Server. Vendors: Oracle.

Quick answers

Is CVE-2017-3244 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2017-3244 being exploited in the wild.
How severe is CVE-2017-3244?
Medium severity, with a CVSS score of 6.5, published 27 January 2017.
Which products and versions are affected?
Oracle MySQL Server 5.5.53 and earlier, 5.6.34 and earlier, 5.7.16 and earlier.
Is there a fix for CVE-2017-3244?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2017-3244 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2017-3244?
Check whether you run Oracle MySQL Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This vulnerability affects the Data Manipulation Language (DML) subcomponent of the MySQL Server. It is classified as an 'easily exploitable' flaw that allows an authenticated, low-privileged attacker with network access via multiple protocols to impact the availability of the database. Successful exploitation results in a complete denial-of-service (DoS) by causing the server to hang or crash repeatedly. The issue was addressed in Oracle's January 2017 Critical Patch Update and corresponding updates for MariaDB and various Linux distributions. Root cause is attributed to insufficient information in the DML processing logic.

Affected products

  • Oracle MySQL Server 5.5.53 and earlier, 5.6.34 and earlier, 5.7.16 and earlier
  • MariaDB Foundation MariaDB 5.5.0 before 5.5.54, 10.0.0 before 10.0.29, 10.1.0 before 10.1.21

Timeline

  • 2017-01-19: advisory: Debian released DSA-3767-1 for mysql-5.5
  • 2017-01-22: advisory: Debian released DSA-3770-1 for mariadb-10.0
  • 2017-01-27: disclosed: NVD publication date

References

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