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4.9

MySQL Server can be crashed by remote attacker

published 2 years ago
Summary

The MySQL Server used in Azure MySQL versions up to 8.0.39, 8.4.2 and 9.0.1 can be forced to stop working by a high‑privilege attacker who can reach the server over the network. This may cause the database to hang or repeatedly crash, interrupting your applications. Upgrade to MySQL 8.0.40-1 or newer, or apply the vendor’s patch, to prevent the issue.

What to do
  • Update azure mysql to version 8.0.40-1.
Affected software
Ecosystem VendorProductAffected versions
Azure Linux:3 azure mysql < 8.0.40-1
Fix: upgrade to 8.0.40-1
Original advisory text
CVE-2024-21236 affecting package mysql for versions less than 8.0.40-1
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
4.9 Medium
Timeline
Published15 Oct 2024
Updated23 Sep 2026
First seen23 Sep 2026
Sources
AZL-50457 · OSV
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